Adding apex utiliites and basic-model module

Change-Id: Ib72677912eb5ac4b872e555f24570c86a627802f
Issue-ID: POLICY-855
Signed-off-by: waqas.ikram <waqas.ikram@ericsson.com>

31 files changed, 3278 insertions, 0 deletions

diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/AxKeyTest.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/AxKeyTest.java
new file mode 100644
index 000000000..a454aaf92
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/AxKeyTest.java
@@ -0,0 +1,119 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKey;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.concepts.AxKey.Compatibility;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class AxKeyTest {
+
+    @Test
+    public void testArtifactKey() {
+        AxArtifactKey aKey0 = new AxArtifactKey();
+        AxArtifactKey aKey1 = new AxArtifactKey("name", "0.0.1");
+        AxArtifactKey aKey2 = new AxArtifactKey(aKey1);
+        AxArtifactKey aKey3 = new AxArtifactKey(aKey1.getID());
+        AxArtifactKey aKey4 = new AxArtifactKey(aKey1);
+        AxArtifactKey aKey5 = new AxArtifactKey(aKey1);
+        AxArtifactKey aKey6 = new AxArtifactKey(aKey1);
+
+        try {
+            new AxArtifactKey("some bad key id");
+            fail("This test should throw an exception");
+        }
+        catch (IllegalArgumentException e) {
+            assertEquals("parameter \"id\": value \"some bad key id\", does not match regular expression \"[A-Za-z0-9\\-_\\.]+:[0-9].[0-9].[0-9]\"", e.getMessage());
+        }
+        
+        assertEquals(AxArtifactKey.getNullKey(), aKey0);
+        assertEquals(aKey1, aKey2);
+        assertEquals(aKey1, aKey3);
+        
+        assertEquals(aKey2, aKey1.getKey());
+        assertEquals(1, aKey1.getKeys().size());
+        
+        aKey0.setName("zero");
+        aKey0.setVersion("0.0.2");
+        aKey3.setVersion("0.0.2");
+        aKey4.setVersion("0.1.2");
+        aKey5.setVersion("1.2.2");
+        aKey6.setVersion("3");
+        
+        assertEquals(Compatibility.DIFFERENT, aKey0.getCompatibility(new AxReferenceKey()));
+        assertEquals(Compatibility.DIFFERENT, aKey0.getCompatibility(aKey1));
+        assertEquals(Compatibility.IDENTICAL, aKey2.getCompatibility(aKey1));
+        assertEquals(Compatibility.PATCH,     aKey3.getCompatibility(aKey1));
+        assertEquals(Compatibility.MINOR,     aKey4.getCompatibility(aKey1));
+        assertEquals(Compatibility.MAJOR,     aKey5.getCompatibility(aKey1));
+        assertEquals(Compatibility.MAJOR,     aKey6.getCompatibility(aKey1));
+        
+        assertTrue(aKey1.isCompatible(aKey2));
+        assertTrue(aKey1.isCompatible(aKey3));
+        assertTrue(aKey1.isCompatible(aKey4));
+        assertFalse(aKey1.isCompatible(aKey0));
+        assertFalse(aKey1.isCompatible(aKey5));
+        assertFalse(aKey1.isCompatible(new AxReferenceKey()));
+        
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey0.validate(new AxValidationResult()).getValidationResult());
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey1.validate(new AxValidationResult()).getValidationResult());
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey2.validate(new AxValidationResult()).getValidationResult());
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey3.validate(new AxValidationResult()).getValidationResult());
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey4.validate(new AxValidationResult()).getValidationResult());
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey5.validate(new AxValidationResult()).getValidationResult());
+        assertEquals(AxValidationResult.ValidationResult.VALID, aKey6.validate(new AxValidationResult()).getValidationResult());
+        
+        aKey0.clean();
+        assertNotNull(aKey0.toString());
+        
+        AxArtifactKey aKey7 = new AxArtifactKey(aKey1);
+        assertEquals(150332875, aKey7.hashCode());
+        assertEquals(0, aKey7.compareTo(aKey1));
+        assertEquals(-12, aKey7.compareTo(aKey0));
+        
+        try {
+            aKey0.compareTo(null);
+        }
+        catch (IllegalArgumentException e) {
+            assertEquals("comparison object may not be null", e.getMessage());
+        }
+        
+        assertEquals(0, aKey0.compareTo(aKey0));
+        assertEquals(353602977, aKey0.compareTo(new AxReferenceKey()));
+        
+        assertFalse(aKey0.equals(null));
+        assertTrue(aKey0.equals(aKey0));
+        assertFalse(((AxKey)aKey0).equals(new AxReferenceKey()));
+    }
+
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestAxKeyInfo.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestAxKeyInfo.java
new file mode 100644
index 000000000..6af662bdf
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestAxKeyInfo.java
@@ -0,0 +1,108 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.UUID;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestAxKeyInfo {
+
+    @Test
+    public void testAxKeyInfo() {
+        assertNotNull(new AxKeyInfo());
+        assertNotNull(new AxKeyInfo(new AxArtifactKey()));
+        assertNotNull(new AxKeyInfo(new AxArtifactKey(), UUID.randomUUID(), "Key description"));
+
+        AxKeyInfo testKeyInfo = new AxKeyInfo();
+        testKeyInfo.setKey((new AxArtifactKey("PN", "0.0.1")));
+        assertEquals("PN:0.0.1", testKeyInfo.getKey().getID());
+
+        AxArtifactKey key = new AxArtifactKey("key", "0.0.1");
+        testKeyInfo.setKey(key);
+        assertEquals(key, testKeyInfo.getKey());
+        
+        UUID uuid = UUID.randomUUID();
+        testKeyInfo.setUuid(uuid);
+        assertEquals(uuid, testKeyInfo.getUUID());
+        testKeyInfo.setDescription("Key Description");
+        assertEquals("Key Description", testKeyInfo.getDescription());
+        
+        AxKeyInfo clonedReferenceKey = new AxKeyInfo(testKeyInfo);
+        assertTrue(clonedReferenceKey.toString().startsWith("AxKeyInfo:(artifactId=AxArtifactKey:(name=key,version=0.0.1),uuid="));
+        
+        assertFalse(testKeyInfo.hashCode() == 0);
+        
+        assertTrue(testKeyInfo.equals(testKeyInfo));
+        assertTrue(testKeyInfo.equals(clonedReferenceKey));
+        assertFalse(testKeyInfo.equals(null));
+        assertFalse(testKeyInfo.equals(new AxArtifactKey()));
+        assertFalse(testKeyInfo.equals(new AxKeyInfo(new AxArtifactKey())));
+        assertFalse(testKeyInfo.equals(new AxKeyInfo(key, UUID.randomUUID(), "Some Description")));
+        assertFalse(testKeyInfo.equals(new AxKeyInfo(key, uuid, "Some Description")));
+        assertTrue(testKeyInfo.equals(new AxKeyInfo(key, uuid, "Key Description")));
+        
+        assertEquals(0, testKeyInfo.compareTo(testKeyInfo));
+        assertEquals(0, testKeyInfo.compareTo(clonedReferenceKey));
+        assertNotEquals(0, testKeyInfo.compareTo(null));
+        assertNotEquals(0, testKeyInfo.compareTo(new AxArtifactKey()));
+        assertNotEquals(0, testKeyInfo.compareTo(new AxKeyInfo(new AxArtifactKey())));
+        assertNotEquals(0, testKeyInfo.compareTo(new AxKeyInfo(key, UUID.randomUUID(), "Some Description")));
+        assertNotEquals(0, testKeyInfo.compareTo(new AxKeyInfo(key, uuid, "Some Description")));
+        assertEquals(0, testKeyInfo.compareTo(new AxKeyInfo(key, uuid, "Key Description")));
+        
+        assertNotNull(testKeyInfo.getKeys());
+        
+        AxValidationResult result = new AxValidationResult();
+        result = testKeyInfo.validate(result);
+        assertEquals(AxValidationResult.ValidationResult.VALID, result.getValidationResult());
+        
+        testKeyInfo.setDescription("");
+        result = testKeyInfo.validate(result);
+        assertEquals(AxValidationResult.ValidationResult.OBSERVATION, result.getValidationResult());
+        
+        testKeyInfo.setUuid(new UUID(0, 0));
+        result = testKeyInfo.validate(result);
+        assertEquals(AxValidationResult.ValidationResult.WARNING, result.getValidationResult());
+        
+        testKeyInfo.setKey(AxArtifactKey.getNullKey());
+        result = testKeyInfo.validate(result);
+        assertEquals(AxValidationResult.ValidationResult.INVALID, result.getValidationResult());
+        
+        assertNotNull(AxKeyInfo.generateReproducibleUUID(null));
+        assertNotNull(AxKeyInfo.generateReproducibleUUID("SeedString"));
+        
+        testKeyInfo.clean();
+        assertNotNull(testKeyInfo);
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestAxReferenceKey.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestAxReferenceKey.java
new file mode 100644
index 000000000..7ec3cbbbf
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestAxReferenceKey.java
@@ -0,0 +1,112 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKey;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestAxReferenceKey {
+
+    @Test
+    public void testAxReferenceKey() {
+        assertNotNull(new AxReferenceKey());
+        assertNotNull(new AxReferenceKey(new AxArtifactKey()));
+        assertNotNull(new AxReferenceKey(new AxArtifactKey(), "LocalName"));
+        assertNotNull(new AxReferenceKey(new AxReferenceKey()));
+        assertNotNull(new AxReferenceKey(new AxReferenceKey(), "LocalName"));
+        assertNotNull(new AxReferenceKey(new AxArtifactKey(), "ParentLocalName", "LocalName"));
+        assertNotNull(new AxReferenceKey("ParentKeyName", "0.0.1", "LocalName"));
+        assertNotNull(new AxReferenceKey("ParentKeyName", "0.0.1", "ParentLocalName", "LocalName"));
+        assertNotNull(new AxReferenceKey("ParentKeyName:0.0.1:ParentLocalName:LocalName"));
+        assertEquals(AxReferenceKey.getNullKey().getKey(), AxReferenceKey.getNullKey());
+        assertEquals("NULL:0.0.0:NULL:NULL", AxReferenceKey.getNullKey().getID());
+
+        AxReferenceKey testReferenceKey = new AxReferenceKey();
+        testReferenceKey.setParentArtifactKey(new AxArtifactKey("PN", "0.0.1"));
+        assertEquals("PN:0.0.1", testReferenceKey.getParentArtifactKey().getID());
+        
+        testReferenceKey.setParentReferenceKey(new AxReferenceKey("PN", "0.0.1", "LN"));
+        assertEquals("PN:0.0.1:NULL:LN", testReferenceKey.getParentReferenceKey().getID());
+        
+        testReferenceKey.setParentKeyName("NPKN");
+        assertEquals("NPKN", testReferenceKey.getParentKeyName());
+        
+        testReferenceKey.setParentKeyVersion("0.0.1");
+        assertEquals("0.0.1", testReferenceKey.getParentKeyVersion());
+        
+        testReferenceKey.setParentLocalName("NPKLN");
+        assertEquals("NPKLN", testReferenceKey.getParentLocalName());
+        
+        testReferenceKey.setLocalName("NLN");
+        assertEquals("NLN", testReferenceKey.getLocalName());
+        
+        assertFalse(testReferenceKey.isCompatible(AxArtifactKey.getNullKey()));
+        assertFalse(testReferenceKey.isCompatible(AxReferenceKey.getNullKey()));
+        assertTrue(testReferenceKey.isCompatible(testReferenceKey));
+        
+        assertEquals(AxKey.Compatibility.DIFFERENT, testReferenceKey.getCompatibility(AxArtifactKey.getNullKey()));
+        assertEquals(AxKey.Compatibility.DIFFERENT, testReferenceKey.getCompatibility(AxReferenceKey.getNullKey()));
+        assertEquals(AxKey.Compatibility.IDENTICAL, testReferenceKey.getCompatibility(testReferenceKey));
+        
+        AxValidationResult result = new AxValidationResult();
+        result = testReferenceKey.validate(result);
+        assertEquals(AxValidationResult.ValidationResult.VALID, result.getValidationResult());
+        
+        testReferenceKey.clean();
+        
+        AxReferenceKey clonedReferenceKey = new AxReferenceKey(testReferenceKey);
+        assertEquals("AxReferenceKey:(parentKeyName=NPKN,parentKeyVersion=0.0.1,parentLocalName=NPKLN,localName=NLN)", clonedReferenceKey.toString());
+        
+        assertFalse(testReferenceKey.hashCode() == 0);
+        
+        assertTrue(testReferenceKey.equals(testReferenceKey));
+        assertTrue(testReferenceKey.equals(clonedReferenceKey));
+        assertFalse(testReferenceKey.equals("Hello"));
+        assertFalse(testReferenceKey.equals(new AxReferenceKey("PKN", "0.0.2", "PLN", "LN")));
+        assertFalse(testReferenceKey.equals(new AxReferenceKey("NPKN", "0.0.2", "PLN", "LN")));
+        assertFalse(testReferenceKey.equals(new AxReferenceKey("NPKN", "0.0.1", "PLN", "LN")));
+        assertFalse(testReferenceKey.equals(new AxReferenceKey("NPKN", "0.0.1", "NPLN", "LN")));
+        assertTrue(testReferenceKey.equals(new AxReferenceKey("NPKN", "0.0.1", "NPKLN", "NLN")));
+        
+        assertEquals(0, testReferenceKey.compareTo(testReferenceKey));
+        assertEquals(0, testReferenceKey.compareTo(clonedReferenceKey));
+        assertNotEquals(0, testReferenceKey.compareTo(new AxArtifactKey()));
+        assertNotEquals(0, testReferenceKey.compareTo(new AxReferenceKey("PKN", "0.0.2", "PLN", "LN")));
+        assertNotEquals(0, testReferenceKey.compareTo(new AxReferenceKey("NPKN", "0.0.2", "PLN", "LN")));
+        assertNotEquals(0, testReferenceKey.compareTo(new AxReferenceKey("NPKN", "0.0.1", "PLN", "LN")));
+        assertNotEquals(0, testReferenceKey.compareTo(new AxReferenceKey("NPKN", "0.0.1", "NPLN", "LN")));
+        assertEquals(0, testReferenceKey.compareTo(new AxReferenceKey("NPKN", "0.0.1", "NPKLN", "NLN")));
+        
+        assertNotNull(testReferenceKey.getKeys());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestEntity.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestEntity.java
new file mode 100644
index 000000000..3e821f7c5
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestEntity.java
@@ -0,0 +1,175 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import java.util.Arrays;
+import java.util.List;
+
+import javax.persistence.EmbeddedId;
+import javax.persistence.Entity;
+import javax.persistence.Table;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
+
+import org.onap.apex.model.basicmodel.concepts.AxConcept;
+import org.onap.apex.model.basicmodel.concepts.AxKey;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.xml.AxReferenceKeyAdapter;
+
+@Entity
+@Table(name = "TestEntity")
+
+public class TestEntity extends AxConcept {
+    private static final long serialVersionUID = -2962570563281067894L;
+
+    @EmbeddedId()
+    @XmlElement(name = "key", required = true)
+    @XmlJavaTypeAdapter(AxReferenceKeyAdapter.class)
+    protected AxReferenceKey key;
+
+    private double doubleValue;
+   
+    public TestEntity() {
+        this.key = new AxReferenceKey();
+        this.doubleValue = 0;
+    }
+   
+    public TestEntity(Double doubleValue) {
+        this.key = new AxReferenceKey();
+        this.doubleValue = doubleValue;
+    }
+   
+    public TestEntity(AxReferenceKey key, Double doubleValue) {
+        this.key = key;
+        this.doubleValue = doubleValue;
+    }
+   
+    public AxReferenceKey getKey() {
+        return key;
+    }
+
+    public List<AxKey> getKeys() {
+        return Arrays.asList((AxKey) getKey());
+    }
+
+    public void setKey(AxReferenceKey key) {
+        this.key = key;
+    }
+
+    public boolean checkSetKey() {
+        return (this.key != null);
+    }
+
+    public double getDoubleValue() {
+        return doubleValue;
+    }
+
+    public void setDoubleValue(double doubleValue) {
+        this.doubleValue = doubleValue;
+    }
+
+    @Override
+    public AxValidationResult validate(AxValidationResult result) {
+        return key.validate(result);
+    }
+
+    @Override
+    public void clean() {
+        key.clean();
+    }
+   
+    @Override
+    public String toString() {
+        final StringBuilder builder = new StringBuilder();
+        builder.append("doubleValue=");
+        builder.append(doubleValue);
+        return builder.toString();
+    }
+
+    @Override
+    public AxConcept copyTo(AxConcept target) {
+        final Object copyObject = ((target == null) ? new TestEntity(): target);
+        if (copyObject instanceof TestEntity) {
+            final TestEntity copy = ((TestEntity) copyObject);
+            if (this.checkSetKey()) {
+                copy.setKey(new AxReferenceKey(key));
+            }
+            else {
+                copy.key = null;
+            }
+            copy.doubleValue = doubleValue;
+            return copy;
+        }
+        else {
+        		return null;
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((key == null) ? 0 : key.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null)
+            return false;
+        if (this == obj)
+            return true;
+        if (getClass() != obj.getClass())
+            return false;
+        TestEntity other = (TestEntity) obj;
+        if (key == null) {
+            if (other.key != null)
+                return false;
+        }
+        else
+            if (!key.equals(other.key))
+                return false;
+        if (doubleValue != other.doubleValue)
+                return false;
+        return true;
+    }
+   
+    @Override
+    public int compareTo(AxConcept otherObj) {
+        if (otherObj == null)
+            return -1;
+        if (this == otherObj)
+            return 0;
+        TestEntity other = (TestEntity) otherObj;
+        if (key == null) {
+            if (other.key != null)
+                return 1;
+        }
+        else
+            if (!key.equals(other.key))
+                return key.compareTo(other.key);
+        if (doubleValue != other.doubleValue)
+            return new Double(doubleValue).compareTo(other.doubleValue);
+       
+        return 0;
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestExceptions.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestExceptions.java
new file mode 100644
index 000000000..1d37cd8ed
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestExceptions.java
@@ -0,0 +1,70 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.IOException;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexConceptException;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.ApexRuntimeException;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestExceptions {
+
+    @Test
+    public void test() {
+        assertNotNull(new ApexException("Message"));
+        assertNotNull(new ApexException("Message", new AxArtifactKey()));
+        assertNotNull(new ApexException("Message", new IOException()));
+        assertNotNull(new ApexException("Message", new IOException(), new AxArtifactKey()));
+        
+        AxArtifactKey key = new AxArtifactKey();
+        ApexException ae = new ApexException("Message", new IOException("IO exception message"), key);
+        assertEquals("Message\ncaused by: Message\ncaused by: IO exception message", ae.getCascadedMessage());
+        assertEquals(key, ae.getObject());
+        
+        assertNotNull(new ApexRuntimeException("Message"));
+        assertNotNull(new ApexRuntimeException("Message", new AxArtifactKey()));
+        assertNotNull(new ApexRuntimeException("Message", new IOException()));
+        assertNotNull(new ApexRuntimeException("Message", new IOException(), new AxArtifactKey()));
+        
+        AxArtifactKey rKey = new AxArtifactKey();
+        ApexRuntimeException re = new ApexRuntimeException("Runtime Message", new IOException("IO runtime exception message"), rKey);
+        assertEquals("Runtime Message\ncaused by: Runtime Message\ncaused by: IO runtime exception message", re.getCascadedMessage());
+        assertEquals(key, re.getObject());
+        
+        assertNotNull(new ApexConceptException("Message"));
+        assertNotNull(new ApexConceptException("Message", new IOException()));
+        
+        AxArtifactKey cKey = new AxArtifactKey();
+        ApexException ace = new ApexException("Concept Message", new IOException("IO concept exception message"), cKey);
+        assertEquals("Concept Message\ncaused by: Concept Message\ncaused by: IO concept exception message", ace.getCascadedMessage());
+        assertEquals(cKey, ace.getObject());
+    }
+
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestValidation.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestValidation.java
new file mode 100644
index 000000000..e8eff5230
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/TestValidation.java
@@ -0,0 +1,93 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationMessage;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult.ValidationResult;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestValidation {
+
+    @Test
+    public void test() {
+        AxValidationResult result = new AxValidationResult();
+        AxReferenceKey refKey = new AxReferenceKey("PK", "0.0.1", "PLN", "LN");
+        result = refKey.validate(result);
+        
+        assertNotNull(result);
+        assertTrue(result.isOK());
+        assertTrue(result.isValid());
+        assertEquals(AxValidationResult.ValidationResult.VALID, result.getValidationResult());
+        assertNotNull(result.getMessageList());
+        
+        AxValidationMessage vMess0 = new AxValidationMessage(AxArtifactKey.getNullKey(), AxArtifactKey.class, ValidationResult.VALID, "Some message");
+        result.addValidationMessage(vMess0);
+        
+        assertTrue(result.isOK());
+        assertTrue(result.isValid());
+        assertEquals(AxValidationResult.ValidationResult.VALID, result.getValidationResult());
+        assertNotNull(result.getMessageList());
+        assertNotNull("hello", result.toString());
+        
+        AxValidationMessage vMess1 = new AxValidationMessage(AxArtifactKey.getNullKey(), AxArtifactKey.class, ValidationResult.OBSERVATION, "Some message");
+        result.addValidationMessage(vMess1);
+        
+        assertTrue(result.isOK());
+        assertTrue(result.isValid());
+        assertEquals(AxValidationResult.ValidationResult.OBSERVATION, result.getValidationResult());
+        assertNotNull(result.getMessageList());
+        assertNotNull("hello", result.toString());
+        
+        AxValidationMessage vMess2 = new AxValidationMessage(AxArtifactKey.getNullKey(), AxArtifactKey.class, ValidationResult.WARNING, "Some message");
+        result.addValidationMessage(vMess2);
+        
+        assertFalse(result.isOK());
+        assertTrue(result.isValid());
+        assertEquals(AxValidationResult.ValidationResult.WARNING, result.getValidationResult());
+        assertNotNull(result.getMessageList());
+        assertNotNull("hello", result.toString());
+        
+        AxValidationMessage vMess3 = new AxValidationMessage(AxArtifactKey.getNullKey(), AxArtifactKey.class, ValidationResult.INVALID, "Some message");
+        result.addValidationMessage(vMess3);
+        
+        assertFalse(result.isOK());
+        assertFalse(result.isValid());
+        assertEquals(AxValidationResult.ValidationResult.INVALID, result.getValidationResult());
+        assertNotNull(result.getMessageList());
+        assertNotNull("hello", result.toString());
+        
+        assertEquals(AxValidationResult.ValidationResult.INVALID, result.getMessageList().get(3).getValidationResult());
+        assertEquals("Some message", result.getMessageList().get(3).getMessage());
+        assertEquals(AxArtifactKey.class.getCanonicalName(), result.getMessageList().get(3).getObservedClass());
+        assertEquals(AxArtifactKey.getNullKey(), result.getMessageList().get(3).getObservedKey());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/testKeyUse.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/testKeyUse.java
new file mode 100644
index 000000000..ca1e5c191
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/concepts/testKeyUse.java
@@ -0,0 +1,82 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.concepts;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyUse;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.concepts.AxKey.Compatibility;
+
+public class testKeyUse {
+
+    @Test
+    public void test() {
+        assertNotNull(new AxKeyUse());
+        assertNotNull(new AxKeyUse(new AxArtifactKey()));
+        assertNotNull(new AxKeyUse(new AxReferenceKey()));
+        
+        AxArtifactKey key = new AxArtifactKey("Key", "0.0.1");
+        AxKeyUse keyUse = new AxKeyUse();
+        keyUse.setKey(key);
+        assertEquals(key, keyUse.getKey());
+        assertEquals("Key:0.0.1", keyUse.getID());
+        assertEquals(key, keyUse.getKeys().get(0));
+        
+        assertEquals(Compatibility.IDENTICAL, keyUse.getCompatibility(key));
+        assertTrue(keyUse.isCompatible(key));
+        
+        keyUse.clean();
+        assertNotNull(keyUse);
+        
+        AxValidationResult result = new AxValidationResult();
+        result = keyUse.validate(result);
+        assertNotNull(result);
+        
+        assertNotEquals(0, keyUse.hashCode());
+        
+        AxKeyUse clonedKeyUse = new AxKeyUse(keyUse);
+        assertEquals("AxKeyUse:(usedKey=AxArtifactKey:(name=Key,version=0.0.1))", clonedKeyUse.toString());
+        
+        assertFalse(keyUse.hashCode() == 0);
+        
+        assertTrue(keyUse.equals(keyUse));
+        assertTrue(keyUse.equals(clonedKeyUse));
+        assertFalse(keyUse.equals("Hello"));
+        assertTrue(keyUse.equals(new AxKeyUse(key)));
+        
+        assertEquals(0, keyUse.compareTo(keyUse));
+        assertEquals(0, keyUse.compareTo(clonedKeyUse));
+        assertNotEquals(0, keyUse.compareTo(new AxArtifactKey()));
+        assertEquals(0, keyUse.compareTo(new AxKeyUse(key)));
+        
+        AxKeyUse keyUseNull = new AxKeyUse(AxArtifactKey.getNullKey());
+        AxValidationResult resultNull = new AxValidationResult();
+        assertEquals(false, keyUseNull.validate(resultNull).isValid());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/dao/EntityTest.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/dao/EntityTest.java
new file mode 100644
index 000000000..87779848e
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/dao/EntityTest.java
@@ -0,0 +1,300 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.dao;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.UUID;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.TestEntity;
+import org.onap.apex.model.basicmodel.dao.ApexDao;
+import org.onap.apex.model.basicmodel.dao.ApexDaoFactory;
+import org.onap.apex.model.basicmodel.dao.DAOParameters;
+
+/**
+ * JUnit test class
+ */
+public class EntityTest {
+    private Connection connection;
+    private ApexDao apexDao;
+
+    @Before
+    public void setup() throws Exception {
+        Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance();
+        connection = DriverManager.getConnection("jdbc:derby:memory:apex_test;create=true");
+    }
+
+    @After
+    public void teardown() throws Exception {
+        connection.close();
+        new File("derby.log").delete();
+    }
+
+    @Test
+    public void testEntityTestSanity() throws ApexException {
+        final DAOParameters daoParameters = new DAOParameters();
+
+        apexDao = new ApexDaoFactory().createApexDao(daoParameters);
+
+        try {
+            apexDao.init(null);
+            fail("Test should throw an exception here");
+        }
+        catch (final Exception e) {
+            assertEquals("Apex persistence unit parameter not set", e.getMessage());
+        }
+
+        try {
+            apexDao.init(daoParameters);
+            fail("Test should throw an exception here");
+        }
+        catch (final Exception e) {
+            assertEquals("Apex persistence unit parameter not set", e.getMessage());
+        }
+
+        daoParameters.setPluginClass("somewhere.over.the.rainbow");
+        daoParameters.setPersistenceUnit("Dorothy");
+        try {
+            apexDao.init(daoParameters);
+            fail("Test should throw an exception here");
+        }
+        catch (final Exception e) {
+            assertEquals("Creation of Apex persistence unit \"Dorothy\" failed", e.getMessage());
+        }
+        try {
+            apexDao.create(new AxArtifactKey());
+            fail("Test should throw an exception here");
+        }
+        catch (final Exception e) {
+            assertEquals("Apex DAO has not been initialized", e.getMessage());
+        }
+        apexDao.close();
+    }
+
+    @Test
+    public void testEntityTestAllOpsJPA() throws ApexException {
+        final DAOParameters daoParameters = new DAOParameters();
+        daoParameters.setPluginClass("org.onap.apex.model.basicmodel.dao.impl.DefaultApexDao");
+        daoParameters.setPersistenceUnit("DAOTest");
+
+        apexDao = new ApexDaoFactory().createApexDao(daoParameters);
+        apexDao.init(daoParameters);
+
+        testAllOps();
+        apexDao.close();
+    }
+
+    @Test
+    public void testEntityTestBadVals() throws ApexException {
+        final DAOParameters daoParameters = new DAOParameters();
+        daoParameters.setPluginClass("org.onap.apex.model.basicmodel.dao.impl.DefaultApexDao");
+        daoParameters.setPersistenceUnit("DAOTest");
+
+        apexDao = new ApexDaoFactory().createApexDao(daoParameters);
+        apexDao.init(daoParameters);
+
+        final AxArtifactKey nullKey = null;
+        final AxReferenceKey nullRefKey = null;
+        final List<AxArtifactKey> nullKeyList = null;
+        final List<AxArtifactKey> emptyKeyList = new ArrayList<>();
+        final List<AxReferenceKey> nullRKeyList = null;
+        final List<AxReferenceKey> emptyRKeyList = new ArrayList<>();
+
+        apexDao.create(nullKey);
+        apexDao.create(nullKeyList);
+        apexDao.create(emptyKeyList);
+
+        apexDao.delete(nullKey);
+        apexDao.delete(nullKeyList);
+        apexDao.delete(emptyKeyList);
+        apexDao.delete(AxArtifactKey.class, nullKey);
+        apexDao.delete(AxReferenceKey.class, nullRefKey);
+        apexDao.deleteByArtifactKey(AxArtifactKey.class, nullKeyList);
+        apexDao.deleteByArtifactKey(AxArtifactKey.class, emptyKeyList);
+        apexDao.deleteByReferenceKey(AxReferenceKey.class, nullRKeyList);
+        apexDao.deleteByReferenceKey(AxReferenceKey.class, emptyRKeyList);
+
+        apexDao.get(null, nullKey);
+        apexDao.get(null, nullRefKey);
+        apexDao.getAll(null);
+        apexDao.getAll(null, nullKey);
+        apexDao.getArtifact(null, nullKey);
+        apexDao.getArtifact(AxArtifactKey.class, nullKey);
+        apexDao.getArtifact(null, nullRefKey);
+        apexDao.getArtifact(AxReferenceKey.class, nullRefKey);
+        apexDao.size(null);
+
+        apexDao.close();
+    }
+
+    private void testAllOps(){
+        final AxArtifactKey  aKey0    = new AxArtifactKey("A-KEY0", "0.0.1");
+        final AxArtifactKey  aKey1    = new AxArtifactKey("A-KEY1", "0.0.1");
+        final AxArtifactKey  aKey2    = new AxArtifactKey("A-KEY2", "0.0.1");
+        final AxKeyInfo      keyInfo0 = new AxKeyInfo(aKey0, UUID.fromString("00000000-0000-0000-0000-000000000000"), "key description 0");
+        final AxKeyInfo      keyInfo1 = new AxKeyInfo(aKey1, UUID.fromString("00000000-0000-0000-0000-000000000001"), "key description 1");
+        final AxKeyInfo      keyInfo2 = new AxKeyInfo(aKey2, UUID.fromString("00000000-0000-0000-0000-000000000002"), "key description 2");
+
+        apexDao.create(keyInfo0);
+
+        final AxKeyInfo keyInfoBack0 = apexDao.get(AxKeyInfo.class, aKey0);
+        assertTrue(keyInfo0.equals(keyInfoBack0));
+
+        final AxKeyInfo keyInfoBackNull = apexDao.get(AxKeyInfo.class, AxArtifactKey.getNullKey());
+        assertNull(keyInfoBackNull);
+
+        final AxKeyInfo keyInfoBack1 = apexDao.getArtifact(AxKeyInfo.class, aKey0);
+        assertTrue(keyInfoBack0.equals(keyInfoBack1));
+
+        final AxKeyInfo keyInfoBack2 = apexDao.getArtifact(AxKeyInfo.class,  new AxArtifactKey("A-KEY3", "0.0.1"));
+        assertNull(keyInfoBack2);
+
+        final Set<AxKeyInfo> keyInfoSetIn = new TreeSet<AxKeyInfo>();
+        keyInfoSetIn.add(keyInfo1);
+        keyInfoSetIn.add(keyInfo2);
+
+        apexDao.create(keyInfoSetIn);
+
+        Set<AxKeyInfo> keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+
+        keyInfoSetIn.add(keyInfo0);
+        assertTrue(keyInfoSetIn.equals(keyInfoSetOut));
+
+        apexDao.delete(keyInfo1);
+        keyInfoSetIn.remove(keyInfo1);
+        keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+        assertTrue(keyInfoSetIn.equals(keyInfoSetOut));
+
+        apexDao.delete(keyInfoSetIn);
+        keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+        assertEquals(0, keyInfoSetOut.size());
+
+        keyInfoSetIn.add(keyInfo0);
+        keyInfoSetIn.add(keyInfo1);
+        keyInfoSetIn.add(keyInfo0);
+        apexDao.create(keyInfoSetIn);
+        keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+        assertTrue(keyInfoSetIn.equals(keyInfoSetOut));
+
+        apexDao.delete(AxKeyInfo.class, aKey0);
+        keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+        assertEquals(2, keyInfoSetOut.size());
+        assertEquals(2, apexDao.size(AxKeyInfo.class));
+
+        final Set<AxArtifactKey> keySetIn = new TreeSet<AxArtifactKey>();
+        keySetIn.add(aKey1);
+        keySetIn.add(aKey2);
+
+        final int deletedCount = apexDao.deleteByArtifactKey(AxKeyInfo.class, keySetIn);
+        assertEquals(2, deletedCount);
+
+        keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+        assertEquals(0, keyInfoSetOut.size());
+
+        keyInfoSetIn.add(keyInfo0);
+        keyInfoSetIn.add(keyInfo1);
+        keyInfoSetIn.add(keyInfo0);
+        apexDao.create(keyInfoSetIn);
+        keyInfoSetOut = new TreeSet<AxKeyInfo>(apexDao.getAll(AxKeyInfo.class));
+        assertTrue(keyInfoSetIn.equals(keyInfoSetOut));
+
+        apexDao.deleteAll(AxKeyInfo.class);
+        assertEquals(0, apexDao.size(AxKeyInfo.class));
+
+        final AxArtifactKey owner0Key = new AxArtifactKey("Owner0", "0.0.1");
+        final AxArtifactKey owner1Key = new AxArtifactKey("Owner1", "0.0.1");
+        final AxArtifactKey owner2Key = new AxArtifactKey("Owner2", "0.0.1");
+        final AxArtifactKey owner3Key = new AxArtifactKey("Owner3", "0.0.1");
+        final AxArtifactKey owner4Key = new AxArtifactKey("Owner4", "0.0.1");
+        final AxArtifactKey owner5Key = new AxArtifactKey("Owner5", "0.0.1");
+
+        apexDao.create(new TestEntity(new AxReferenceKey(owner0Key, "Entity0"), 100.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner0Key, "Entity1"), 101.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner0Key, "Entity2"), 102.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner0Key, "Entity3"), 103.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner0Key, "Entity4"), 104.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner1Key, "Entity5"), 105.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner1Key, "Entity6"), 106.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner1Key, "Entity7"), 107.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner2Key, "Entity8"), 108.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner2Key, "Entity9"), 109.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner3Key, "EntityA"), 110.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner4Key, "EntityB"), 111.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner5Key, "EntityC"), 112.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner5Key, "EntityD"), 113.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner5Key, "EntityE"), 114.0));
+        apexDao.create(new TestEntity(new AxReferenceKey(owner5Key, "EntityF"), 115.0));
+
+        TreeSet<TestEntity> testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class));
+        assertEquals(16, testEntitySetOut.size());
+
+        testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class, owner0Key));
+        assertEquals(5, testEntitySetOut.size());
+
+        testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class, owner1Key));
+        assertEquals(3, testEntitySetOut.size());
+
+        testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class, owner2Key));
+        assertEquals(2, testEntitySetOut.size());
+
+        testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class, owner3Key));
+        assertEquals(1, testEntitySetOut.size());
+
+        testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class, owner4Key));
+        assertEquals(1, testEntitySetOut.size());
+
+        testEntitySetOut = new TreeSet<TestEntity>(apexDao.getAll(TestEntity.class, owner5Key));
+        assertEquals(4, testEntitySetOut.size());
+
+        assertNotNull(apexDao.get(TestEntity.class, new AxReferenceKey(owner0Key, "Entity0")));
+        assertNotNull(apexDao.getArtifact(TestEntity.class, new AxReferenceKey(owner0Key, "Entity0")));
+        assertNull(apexDao.get(TestEntity.class, new AxReferenceKey(owner0Key, "Entity1000")));
+        assertNull(apexDao.getArtifact(TestEntity.class, new AxReferenceKey(owner0Key, "Entity1000")));
+        apexDao.delete(TestEntity.class, new AxReferenceKey(owner0Key, "Entity0"));
+
+        final Set<AxReferenceKey> rKeySetIn = new TreeSet<AxReferenceKey>();
+        rKeySetIn.add(new AxReferenceKey(owner4Key, "EntityB"));
+        rKeySetIn.add(new AxReferenceKey(owner5Key, "EntityD"));
+
+        final int deletedRCount = apexDao.deleteByReferenceKey(TestEntity.class, rKeySetIn);
+        assertEquals(2, deletedRCount);
+
+        apexDao.update(new TestEntity(new AxReferenceKey(owner5Key, "EntityF"), 120.0));
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/dao/TestDaoMisc.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/dao/TestDaoMisc.java
new file mode 100644
index 000000000..9109bc24b
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/dao/TestDaoMisc.java
@@ -0,0 +1,91 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.dao;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.fail;
+
+import java.util.Properties;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.dao.ApexDaoFactory;
+import org.onap.apex.model.basicmodel.dao.DAOParameters;
+import org.onap.apex.model.basicmodel.dao.converters.CDATAConditioner;
+import org.onap.apex.model.basicmodel.dao.converters.UUID2String;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestDaoMisc {
+
+    @Test
+    public void testUUID2StringMopUp() {
+        UUID2String uuid2String = new UUID2String();
+        assertEquals("", uuid2String.convertToDatabaseColumn(null));
+    }
+
+    @Test
+    public void testCDataConditionerMopUp() {
+        assertNull(CDATAConditioner.clean(null));
+    }
+    
+    @Test
+    public void testDaoFactory() {
+        DAOParameters daoParameters = new DAOParameters();
+
+        daoParameters.setPluginClass("somewhere.over.the.rainbow");
+        try {
+            new ApexDaoFactory().createApexDao(daoParameters);
+            fail("test shold throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("Apex DAO class not found for DAO plugin \"somewhere.over.the.rainbow\"", e.getMessage());
+        }
+        
+        daoParameters.setPluginClass("java.lang.String");
+        try {
+            new ApexDaoFactory().createApexDao(daoParameters);
+            fail("test shold throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("Specified Apex DAO plugin class \"java.lang.String\" does not implement the ApexDao interface", e.getMessage());
+        }
+    }
+    
+    @Test
+    public void testDaoParameters() {
+        DAOParameters pars = new DAOParameters();
+        pars.setJdbcProperties(new Properties());
+        assertEquals(0, pars.getJdbcProperties().size());
+        
+        pars.setJdbcProperty("name", "Dorothy");
+        assertEquals("Dorothy", pars.getJdbcProperty("name"));
+        
+        pars.setPersistenceUnit("Kansas");
+        assertEquals("Kansas", pars.getPersistenceUnit());
+        
+        pars.setPluginClass("somewhere.over.the.rainbow");
+        assertEquals("somewhere.over.the.rainbow", pars.getPluginClass());
+        
+        assertEquals("DAOParameters [pluginClass=somewhere.over.the.rainbow, persistenceUnit=Kansas, jdbcProperties={name=Dorothy}]", pars.toString());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/AxModelWithReferences.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/AxModelWithReferences.java
new file mode 100644
index 000000000..e08b4482c
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/AxModelWithReferences.java
@@ -0,0 +1,69 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKey;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+
+public class AxModelWithReferences extends AxModel {
+    private static final long serialVersionUID = -8194956638511120008L;
+
+    private List<AxKey> extraKeyList = new ArrayList<>();
+    
+    public AxModelWithReferences(final AxArtifactKey key) {
+        super(key);
+    }
+    
+    @Override
+    public List<AxKey> getKeys() {
+        List<AxKey> keys = super.getKeys();
+        keys.addAll(extraKeyList);
+
+        return keys;
+    }
+
+    public List<AxKey> getExtraKeyList() {
+        return extraKeyList;
+    }
+
+    public void setReferenceKeyList() {
+        List<AxKey> keys = super.getKeys();
+        
+        for (AxKey key: keys) {
+            AxArtifactKey aKey = (AxArtifactKey)key;
+            AxReferenceKey keyRef = new AxReferenceKey(aKey, aKey.getName());
+            extraKeyList.add(keyRef);
+        }
+    }
+    
+    public void addKey(final AxKey aKey) {
+        extraKeyList.add(aKey);
+    }
+    
+    public void removeKey(final AxKey aKey) {
+        extraKeyList.remove(aKey);
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModel.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModel.java
new file mode 100644
index 000000000..e4d91b7a2
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModel.java
@@ -0,0 +1,137 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.*;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.dao.DAOParameters;
+import org.onap.apex.model.basicmodel.test.TestApexModel;
+
+public class TestApexBasicModel {
+    private Connection connection;
+    TestApexModel<AxModel> testApexModel;
+
+    @Before
+    public void setup() throws Exception {
+        Class.forName("org.apache.derby.jdbc.EmbeddedDriver").newInstance();
+        connection = DriverManager.getConnection("jdbc:derby:memory:apex_test;create=true");
+
+        testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexBasicModelCreator());
+    }
+
+    @After
+    public void teardown() throws Exception {
+        connection.close();
+        new File("derby.log").delete();
+    }
+
+    @Test
+    public void testModelValid() throws Exception {
+        AxValidationResult result = testApexModel.testApexModelValid();
+        assertTrue(result.toString().equals(VALID_MODEL_STRING));
+    }
+
+    @Test
+    public void testApexModelVaidateObservation() throws Exception {
+        try {
+            testApexModel.testApexModelVaidateObservation();
+        }
+        catch (ApexException e) {
+            assertEquals("model should have observations", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testApexModelVaidateWarning() throws Exception {
+        AxValidationResult result = testApexModel.testApexModelVaidateWarning();
+        assertTrue(result.toString().equals(WARNING_MODEL_STRING));
+    }
+
+    @Test
+    public void testModelVaidateInvalidModel() throws Exception {
+        AxValidationResult result = testApexModel.testApexModelVaidateInvalidModel();
+        assertTrue(result.toString().equals(INVALID_MODEL_STRING));
+    }
+
+    @Test
+    public void testModelVaidateMalstructured() throws Exception {
+        AxValidationResult result = testApexModel.testApexModelVaidateMalstructured();
+        assertTrue(result.toString().equals(INVALID_MODEL_MALSTRUCTURED_STRING));
+    }
+
+    @Test
+    public void testModelWriteReadXML() throws Exception {
+        testApexModel.testApexModelWriteReadXML();
+    }
+
+    @Test
+    public void testModelWriteReadJSON() throws Exception {
+        testApexModel.testApexModelWriteReadJSON();
+    }
+
+    @Test
+    public void testModelWriteReadJPA() throws Exception {
+        DAOParameters daoParameters = new DAOParameters();
+        daoParameters.setPluginClass("org.onap.apex.model.basicmodel.dao.impl.DefaultApexDao");
+        daoParameters.setPersistenceUnit("DAOTest");
+
+        testApexModel.testApexModelWriteReadJPA(daoParameters);
+    }
+
+    // As there are no real concepts in a basic model, this is as near to a valid model as we can get
+    private static final String VALID_MODEL_STRING = "\n" +
+            "***warnings issued during validation of model***\n" +
+            "AxArtifactKey:(name=FloatKIKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:WARNING:key not found for key information entry\n" +
+            "AxArtifactKey:(name=IntegerKIKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:WARNING:key not found for key information entry\n" +
+            "********************************";
+
+    private static final String WARNING_MODEL_STRING = "\n" +
+            "***warnings issued during validation of model***\n" +
+            "AxArtifactKey:(name=FloatKIKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:WARNING:key not found for key information entry\n" +
+            "AxArtifactKey:(name=IntegerKIKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:WARNING:key not found for key information entry\n" +
+            "AxArtifactKey:(name=Unref0,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:WARNING:key not found for key information entry\n" +
+            "AxArtifactKey:(name=Unref1,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:WARNING:key not found for key information entry\n" +
+            "********************************";
+
+    private static final String INVALID_MODEL_STRING = "\n" +
+            "***validation of model failed***\n" +
+            "AxArtifactKey:(name=BasicModelKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInfo:WARNING:UUID is a zero UUID: 00000000-0000-0000-0000-000000000000\n" +
+            "AxArtifactKey:(name=KeyInfoMapKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInfo:OBSERVATION:description is blank\n" +
+            "AxArtifactKey:(name=KeyInfoMapKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInfo:WARNING:UUID is a zero UUID: 00000000-0000-0000-0000-000000000000\n" +
+            "AxArtifactKey:(name=KeyInfoMapKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInformation:INVALID:duplicate UUID found on keyInfoMap entry AxArtifactKey:(name=KeyInfoMapKey,version=0.0.1):00000000-0000-0000-0000-000000000000\n" +
+            "********************************";
+
+    private static final String INVALID_MODEL_MALSTRUCTURED_STRING = "\n" +
+            "***validation of model failed***\n" +
+            "AxArtifactKey:(name=BasicModelKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxKeyInfo:WARNING:UUID is a zero UUID: 00000000-0000-0000-0000-000000000000\n" +
+            "AxArtifactKey:(name=BasicModelKey,version=0.0.1):org.onap.apex.model.basicmodel.concepts.AxModel:INVALID:key information not found for key AxArtifactKey:(name=KeyInfoMapKey,version=0.0.1)\n" +
+            "********************************";
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModelConcepts.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModelConcepts.java
new file mode 100644
index 000000000..9d29c08f0
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModelConcepts.java
@@ -0,0 +1,279 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+import java.util.Set;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.concepts.AxKeyUse;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult;
+import org.onap.apex.model.basicmodel.concepts.AxValidationResult.ValidationResult;
+import org.onap.apex.model.basicmodel.service.ModelService;
+import org.onap.apex.model.basicmodel.test.TestApexModel;
+
+public class TestApexBasicModelConcepts {
+    TestApexModel<AxModel> testApexModel;
+
+    @Before
+    public void setup() throws Exception {
+        testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexBasicModelCreator());
+    }
+
+    @Test
+    public void testModelConcepts() {
+        AxModel model = testApexModel.getModel();
+        assertNotNull(model);
+        model.clean();
+        assertNotNull(model);
+
+        AxValidationResult result = new AxValidationResult();
+        result = model.validate(result);
+        assertEquals(ValidationResult.WARNING, result.getValidationResult());
+
+        model.register();
+        assertEquals(model.getKeyInformation(), ModelService.getModel(AxKeyInformation.class));
+
+        AxModel clonedModel = new AxModel(model);
+        assertTrue(clonedModel.toString().startsWith("AxModel:(key=AxArtifactKey:(name=BasicModel"));
+
+        assertFalse(model.hashCode() == 0);
+
+        assertTrue(model.equals(model));
+        assertTrue(model.equals(clonedModel));
+        assertFalse(model.equals(null));
+        assertFalse(model.equals("Hello"));
+        clonedModel.getKey().setVersion("0.0.2");
+        assertFalse(model.equals(clonedModel));
+        clonedModel.getKey().setVersion("0.0.1");
+
+        assertEquals(0, model.compareTo(model));
+        assertNotEquals(0, model.compareTo(null));
+        assertNotEquals(0, model.compareTo(new AxReferenceKey()));
+        assertEquals(0, model.compareTo(clonedModel));
+        clonedModel.getKey().setVersion("0.0.2");
+        assertNotEquals(0, model.compareTo(clonedModel));
+        clonedModel.getKey().setVersion("0.0.1");
+
+        assertNotNull(model.getKeys());
+
+        model.getKeyInformation().generateKeyInfo(model);
+        assertNotNull(model.getKeyInformation());
+
+        AxKeyInformation keyI = model.getKeyInformation();
+        AxKeyInformation clonedKeyI = new AxKeyInformation(keyI);
+
+        assertFalse(keyI.equals(null));
+        assertFalse(keyI.equals(new AxArtifactKey()));
+        assertTrue(keyI.equals(clonedKeyI));
+
+        clonedKeyI.setKey(new AxArtifactKey());
+        assertFalse(keyI.equals(clonedKeyI));
+        clonedKeyI.setKey(keyI.getKey());
+
+        assertEquals(0, keyI.compareTo(keyI));
+        assertEquals(0, keyI.compareTo(clonedKeyI));
+        assertNotEquals(0, keyI.compareTo(null));
+        assertNotEquals(0, keyI.compareTo(new AxArtifactKey()));
+
+        clonedKeyI.setKey(new AxArtifactKey());
+        assertNotEquals(0, keyI.compareTo(clonedKeyI));
+        clonedKeyI.setKey(keyI.getKey());
+        assertEquals(0, keyI.compareTo(clonedKeyI));
+
+        clonedKeyI.getKeyInfoMap().clear();
+        assertNotEquals(0, keyI.compareTo(clonedKeyI));
+
+        AxKeyInfo keyInfo = keyI.get("BasicModel");
+        assertNotNull(keyInfo);
+
+        keyInfo = keyI.get(new AxArtifactKey("BasicModel", "0.0.1"));
+        assertNotNull(keyInfo);
+
+        Set<AxKeyInfo> keyInfoSet = keyI.getAll("BasicModel");
+        assertNotNull(keyInfoSet);
+
+        keyInfoSet = keyI.getAll("BasicModel", "0..0.1");
+        assertNotNull(keyInfoSet);
+
+        List<AxKey> keys = model.getKeys();
+        assertNotEquals(0, keys.size());
+
+        keys = keyI.getKeys();
+        assertNotEquals(0, keys.size());
+
+        model.getKeyInformation().generateKeyInfo(model);
+        assertNotNull(model.getKeyInformation());
+        model.getKeyInformation().getKeyInfoMap().clear();
+        model.getKeyInformation().generateKeyInfo(model);
+        assertNotNull(model.getKeyInformation());
+
+        clonedKeyI.setKey(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        clonedKeyI.setKey(keyI.getKey());
+
+        clonedKeyI.getKeyInfoMap().clear();
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        clonedKeyI.generateKeyInfo(model);
+
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        clonedKeyI.getKeyInfoMap().put(AxArtifactKey.getNullKey(), null);
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        clonedKeyI.getKeyInfoMap().clear();
+        clonedKeyI.generateKeyInfo(model);
+
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        clonedKeyI.getKeyInfoMap().put(new AxArtifactKey("SomeKey", "0.0.1"), null);
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        clonedKeyI.getKeyInfoMap().clear();
+        clonedKeyI.generateKeyInfo(model);
+
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        AxKeyInfo mk = clonedKeyI.get(new AxArtifactKey("BasicModel", "0.0.1"));
+        assertNotNull(mk);
+        mk.setKey(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        clonedKeyI.getKeyInfoMap().clear();
+        clonedKeyI.generateKeyInfo(model);
+
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+        
+        clonedModel.setKey(AxArtifactKey.getNullKey());
+        result = new AxValidationResult();
+        result = clonedModel.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+
+        clonedModel.setKey(model.getKey());
+        result = new AxValidationResult();
+        result = clonedKeyI.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+    }
+    
+    @Test
+    public void testModelConceptsWithReferences() {
+        AxModelWithReferences mwr = new TestApexBasicModelCreator().getModelWithReferences();
+        assertNotNull(mwr);
+        mwr.getKeyInformation().getKeyInfoMap().clear();
+        mwr.getKeyInformation().generateKeyInfo(mwr);
+        
+        AxValidationResult result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        // Duplicate key error
+        mwr.addKey(mwr.getKey());
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        mwr.removeKey(mwr.getKey());
+
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        // Null Reference Key
+        mwr.addKey(AxReferenceKey.getNullKey());
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        mwr.removeKey(AxReferenceKey.getNullKey());
+
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+
+        // Duplicate Reference Key
+        AxReferenceKey rKey = new AxReferenceKey(mwr.getKey(), "LocalName");
+        mwr.addKey(rKey);
+        mwr.addKey(rKey);
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        mwr.removeKey(rKey);
+        mwr.removeKey(rKey);
+
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+        
+        // Key Use is legal
+        AxKeyUse keyU = new AxKeyUse(mwr.getKey());
+        mwr.addKey(keyU);
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+        mwr.removeKey(keyU);
+
+        // Key Use on bad artifact key
+        AxKeyUse keyBU = new AxKeyUse(new AxArtifactKey("SomeKey", "0.0.1"));
+        mwr.addKey(keyBU);
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        mwr.removeKey(keyBU);
+
+        // Key Use on bad reference key
+        AxKeyUse keyBRU = new AxKeyUse(new AxReferenceKey("SomeKey", "0.0.1", "Local"));
+        mwr.addKey(keyBRU);
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.INVALID, result.getValidationResult());
+        mwr.removeKey(keyBRU);
+
+        result = new AxValidationResult();
+        result = mwr.validate(result);
+        assertEquals(ValidationResult.VALID, result.getValidationResult());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModelCreator.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModelCreator.java
new file mode 100644
index 000000000..fca6c4425
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexBasicModelCreator.java
@@ -0,0 +1,126 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import java.util.UUID;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.test.TestApexModelCreator;
+
+public class TestApexBasicModelCreator implements TestApexModelCreator<AxModel> {
+
+    @Override
+    public AxModel getModel() {
+        AxModel basicModel = new AxModel();
+
+        basicModel.setKey(new AxArtifactKey("BasicModel", "0.0.1"));
+        basicModel.setKeyInformation(new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1")));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(basicModel.getKey(), new AxKeyInfo(basicModel.getKey()));
+        basicModel.getKeyInformation().getKeyInfoMap().put(basicModel.getKeyInformation().getKey(), new AxKeyInfo(basicModel.getKeyInformation().getKey()));
+
+        AxKeyInfo intKI = new AxKeyInfo(new AxArtifactKey("IntegerKIKey", "0.0.1"), UUID.randomUUID(), "IntegerKIKey description");
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI.getKey(), new AxKeyInfo(intKI.getKey()));
+
+        AxKeyInfo floatKI = new AxKeyInfo(new AxArtifactKey("FloatKIKey", "0.0.1"), UUID.randomUUID(), "FloatKIKey description");
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI.getKey(), new AxKeyInfo(floatKI.getKey()));
+
+        return basicModel;
+    }
+
+    @Override
+    public final AxModel getMalstructuredModel() {
+        AxModel basicModel = new AxModel();
+
+        // Note: No Data types
+        basicModel.setKey(new AxArtifactKey("BasicModelKey", "0.0.1"));
+        basicModel.setKeyInformation(new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1")));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(
+                basicModel.getKey(),
+                new AxKeyInfo(
+                        basicModel.getKey(),
+                        UUID.fromString("00000000-0000-0000-0000-000000000000"),
+                        "\nbasic model description\nThis is a multi line description\nwith another line of text."));
+
+        return basicModel;
+    }
+
+    @Override
+    public final AxModel getObservationModel() {
+        AxModel basicModel = getModel();
+
+        // Set key information as blank
+        basicModel.getKeyInformation().getKeyInfoMap().get(basicModel.getKey()).setDescription("");
+
+        return basicModel;
+    }
+
+    @Override
+    public final AxModel getWarningModel() {
+        AxModel basicModel = getModel();
+
+        // Add unreferenced key information
+        AxKeyInfo unreferencedKeyInfo0 = new AxKeyInfo(new AxArtifactKey("Unref0", "0.0.1"));
+        AxKeyInfo unreferencedKeyInfo1 = new AxKeyInfo(new AxArtifactKey("Unref1", "0.0.1"));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(unreferencedKeyInfo0.getKey(), unreferencedKeyInfo0);
+        basicModel.getKeyInformation().getKeyInfoMap().put(unreferencedKeyInfo1.getKey(), unreferencedKeyInfo1);
+
+        return basicModel;
+    }
+
+    @Override
+    public final AxModel getInvalidModel() {
+        AxModel basicModel = new AxModel();
+
+        basicModel.setKey(new AxArtifactKey("BasicModelKey", "0.0.1"));
+        basicModel.setKeyInformation(new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1")));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(
+                basicModel.getKey(),
+                new AxKeyInfo(
+                        basicModel.getKey(),
+                        UUID.fromString("00000000-0000-0000-0000-000000000000"),
+                        "nbasic model description\nThis is a multi line description\nwith another line of text."));
+        basicModel.getKeyInformation().getKeyInfoMap().put(
+                basicModel.getKeyInformation().getKey(),
+                new AxKeyInfo(
+                        basicModel.getKeyInformation().getKey(),
+                        UUID.fromString("00000000-0000-0000-0000-000000000000"),
+                        ""));
+
+        return basicModel;
+    }
+    
+    public final AxModelWithReferences getModelWithReferences() {
+        AxModel model = getModel();
+        
+        AxModelWithReferences modelWithReferences = new AxModelWithReferences(model.getKey());
+        modelWithReferences.setKeyInformation(model.getKeyInformation());
+        modelWithReferences.setReferenceKeyList();
+        
+        return modelWithReferences;
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator0.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator0.java
new file mode 100644
index 000000000..4b3c00226
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator0.java
@@ -0,0 +1,63 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.test.TestApexModelCreator;
+
+public class TestApexTestModelCreator0 implements TestApexModelCreator<AxModel> {
+
+    @Override
+    public AxModel getModel() {
+        AxModel basicModel = new AxModel();
+
+        basicModel.setKey(new AxArtifactKey("BasicModel", "0.0.1"));
+        basicModel.setKeyInformation(new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1")));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(basicModel.getKey(), new AxKeyInfo(basicModel.getKey()));
+        basicModel.getKeyInformation().getKeyInfoMap().put(basicModel.getKeyInformation().getKey(), new AxKeyInfo(basicModel.getKeyInformation().getKey()));
+
+        return basicModel;
+    }
+
+    @Override
+    public final AxModel getMalstructuredModel() {
+        return getModel();
+    }
+
+    @Override
+    public final AxModel getObservationModel() {
+        return getModel();
+    }
+
+    @Override
+    public final AxModel getWarningModel() {
+        return getModel();
+    }
+
+    @Override
+    public final AxModel getInvalidModel() {
+        return getModel();
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator1.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator1.java
new file mode 100644
index 000000000..e208bd850
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator1.java
@@ -0,0 +1,75 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import java.util.UUID;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.test.TestApexModelCreator;
+
+public class TestApexTestModelCreator1 implements TestApexModelCreator<AxModel> {
+
+    @Override
+    public AxModel getModel() {
+        return getInvalidModel();
+    }
+
+    @Override
+    public final AxModel getMalstructuredModel() {
+        return getInvalidModel();
+    }
+
+    @Override
+    public final AxModel getObservationModel() {
+        return getInvalidModel();
+    }
+
+    @Override
+    public final AxModel getWarningModel() {
+        return getInvalidModel();
+    }
+
+    @Override
+    public final AxModel getInvalidModel() {
+        AxModel basicModel = new AxModel();
+
+        basicModel.setKey(new AxArtifactKey("BasicModelKey", "0.0.1"));
+        basicModel.setKeyInformation(new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1")));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(
+                basicModel.getKey(),
+                new AxKeyInfo(
+                        basicModel.getKey(),
+                        UUID.fromString("00000000-0000-0000-0000-000000000000"),
+                        "nbasic model description\nThis is a multi line description\nwith another line of text."));
+        basicModel.getKeyInformation().getKeyInfoMap().put(
+                basicModel.getKeyInformation().getKey(),
+                new AxKeyInfo(
+                        basicModel.getKeyInformation().getKey(),
+                        UUID.fromString("00000000-0000-0000-0000-000000000000"),
+                        ""));
+
+        return basicModel;
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator2.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator2.java
new file mode 100644
index 000000000..9b9eb13ac
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestApexTestModelCreator2.java
@@ -0,0 +1,63 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.test.TestApexModelCreator;
+
+public class TestApexTestModelCreator2 implements TestApexModelCreator<AxModel> {
+
+    @Override
+    public AxModel getModel() {
+        AxModel basicModel = new AxModel();
+
+        basicModel.setKey(new AxArtifactKey("BasicModel", "0.0.1"));
+        basicModel.setKeyInformation(new AxKeyInformation(new AxArtifactKey("KeyInfoMapKey", "0.0.1")));
+
+        basicModel.getKeyInformation().getKeyInfoMap().put(basicModel.getKey(), new AxKeyInfo(basicModel.getKey()));
+        basicModel.getKeyInformation().getKeyInfoMap().put(basicModel.getKeyInformation().getKey(), new AxKeyInfo(basicModel.getKeyInformation().getKey()));
+        basicModel.getKeyInformation().get("BasicModel").setDescription("");
+        return basicModel;
+    }
+
+    @Override
+    public final AxModel getMalstructuredModel() {
+        return getModel();
+    }
+
+    @Override
+    public final AxModel getObservationModel() {
+        return getModel();
+    }
+
+    @Override
+    public final AxModel getWarningModel() {
+        return getModel();
+    }
+
+    @Override
+    public final AxModel getInvalidModel() {
+        return getModel();
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestBasicModelTest.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestBasicModelTest.java
new file mode 100644
index 000000000..ea5433f08
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestBasicModelTest.java
@@ -0,0 +1,156 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.test.TestApexModel;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestBasicModelTest {
+
+    @Test
+    public void testNormalModelCreator() throws ApexException {
+        TestApexModel<AxModel> testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexBasicModelCreator());
+
+        testApexModel.testApexModelValid();
+        try {
+            testApexModel.testApexModelVaidateObservation();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertEquals("model should have observations", e.getMessage());
+        }
+        testApexModel.testApexModelVaidateWarning();
+        testApexModel.testApexModelVaidateInvalidModel();
+        testApexModel.testApexModelVaidateMalstructured();
+
+        testApexModel.testApexModelWriteReadJSON();
+        testApexModel.testApexModelWriteReadXML();
+    }
+
+    @Test
+    public void testModelCreator0() throws ApexException {
+        TestApexModel<AxModel> testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexTestModelCreator0());
+
+        testApexModel.testApexModelValid();
+        try {
+            testApexModel.testApexModelVaidateObservation();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertEquals("model should have observations", e.getMessage());
+        }
+        try {
+            testApexModel.testApexModelVaidateWarning();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertEquals("model should have warnings", e.getMessage());
+        }
+        try {
+            testApexModel.testApexModelVaidateInvalidModel();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertEquals("should not be valid ***validation of model successful***", e.getMessage());
+        }
+        try {
+            testApexModel.testApexModelVaidateMalstructured();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertEquals("should not be valid ***validation of model successful***", e.getMessage());
+        }
+    }
+
+    @Test
+    public void testModelCreator1() throws ApexException {
+        TestApexModel<AxModel> testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexTestModelCreator1());
+
+        try {
+            testApexModel.testApexModelValid();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().startsWith("model is invalid"));
+        }
+        try {
+            testApexModel.testApexModelVaidateObservation();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().startsWith("model is invalid"));
+        }
+        try {
+            testApexModel.testApexModelVaidateWarning();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().startsWith("model is invalid"));
+        }
+        testApexModel.testApexModelVaidateInvalidModel();
+        testApexModel.testApexModelVaidateMalstructured();
+    }
+    
+    @Test
+    public void testModelCreator2() throws ApexException {
+        TestApexModel<AxModel> testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexTestModelCreator2());
+
+        testApexModel.testApexModelValid();
+        testApexModel.testApexModelVaidateObservation();
+        try {
+            testApexModel.testApexModelVaidateWarning();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertEquals("model should have warnings", e.getMessage());
+        }
+    }
+    
+    @Test
+    public void testModelCreator1XMLJSON() throws ApexException {
+        TestApexModel<AxModel> testApexModel = new TestApexModel<AxModel>(AxModel.class, new TestApexTestModelCreator1());
+
+        try {
+            testApexModel.testApexModelWriteReadJSON();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().startsWith("error processing file"));
+        }
+
+        try {
+            testApexModel.testApexModelWriteReadXML();
+            fail("Test should throw an exception");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().startsWith("error processing file"));
+        }
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestConceptGetter.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestConceptGetter.java
new file mode 100644
index 000000000..a6ff9dc0b
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestConceptGetter.java
@@ -0,0 +1,171 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.UUID;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxArtifactKey;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.handling.ApexModelFileWriter;
+import org.onap.apex.model.basicmodel.handling.ApexModelReader;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestConceptGetter {
+
+    @Test
+    public void testConceptGetter() throws IOException, ApexException {
+        AxModel basicModel = new TestApexBasicModelCreator().getModel();
+        assertNotNull(basicModel);
+       
+        AxKeyInfo intKI01 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey01", "0.0.1"), UUID.randomUUID(), "IntegerKIKey01 description");
+        AxKeyInfo intKI11 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey11", "0.0.1"), UUID.randomUUID(), "IntegerKIKey11 description");
+        AxKeyInfo intKI21 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey21", "0.0.1"), UUID.randomUUID(), "IntegerKIKey21 description");
+        AxKeyInfo intKI22 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey22", "0.0.2"), UUID.randomUUID(), "IntegerKIKey22 description");
+        AxKeyInfo intKI23 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey23", "0.0.3"), UUID.randomUUID(), "IntegerKIKey23 description");
+        AxKeyInfo intKI24 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey24", "0.0.4"), UUID.randomUUID(), "IntegerKIKey24 description");
+        AxKeyInfo intKI25 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey25", "0.0.5"), UUID.randomUUID(), "IntegerKIKey25 description");
+        AxKeyInfo intKI26 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey26", "0.0.6"), UUID.randomUUID(), "IntegerKIKey26 description");
+        AxKeyInfo intKI31 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey31", "0.0.1"), UUID.randomUUID(), "IntegerKIKey31 description");
+        AxKeyInfo intKI41 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey41", "0.0.1"), UUID.randomUUID(), "IntegerKIKey41 description");
+        AxKeyInfo intKI51 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey51", "0.0.1"), UUID.randomUUID(), "IntegerKIKey51 description");
+        AxKeyInfo intKI52 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey52", "0.0.2"), UUID.randomUUID(), "IntegerKIKey52 description");
+        AxKeyInfo intKI53 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey53", "0.0.3"), UUID.randomUUID(), "IntegerKIKey53 description");
+        AxKeyInfo intKI54 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey54", "0.0.4"), UUID.randomUUID(), "IntegerKIKey54 description");
+        AxKeyInfo intKI61 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey61", "0.0.1"), UUID.randomUUID(), "IntegerKIKey61 description");
+        AxKeyInfo intKI62 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey62", "0.0.2"), UUID.randomUUID(), "IntegerKIKey62 description");
+        AxKeyInfo intKI63 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey63", "0.0.3"), UUID.randomUUID(), "IntegerKIKey63 description");
+        AxKeyInfo intKI64 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey64", "0.0.4"), UUID.randomUUID(), "IntegerKIKey64 description");
+        AxKeyInfo intKI71 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey71", "0.0.1"), UUID.randomUUID(), "IntegerKIKey71 description");
+        AxKeyInfo intKI81 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey81", "0.0.1"), UUID.randomUUID(), "IntegerKIKey81 description");
+        AxKeyInfo intKI91 = new AxKeyInfo(new AxArtifactKey("IntegerKIKey91", "0.0.1"), UUID.randomUUID(), "IntegerKIKey91 description");
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI31.getKey(), intKI31);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI24.getKey(), intKI24);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI11.getKey(), intKI11);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI64.getKey(), intKI64);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI41.getKey(), intKI41);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI51.getKey(), intKI51);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI23.getKey(), intKI23);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI81.getKey(), intKI81);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI71.getKey(), intKI71);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI01.getKey(), intKI01);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI91.getKey(), intKI91);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI52.getKey(), intKI52);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI53.getKey(), intKI53);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI62.getKey(), intKI62);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI54.getKey(), intKI54);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI26.getKey(), intKI26);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI22.getKey(), intKI22);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI25.getKey(), intKI25);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI21.getKey(), intKI21);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI61.getKey(), intKI61);
+        basicModel.getKeyInformation().getKeyInfoMap().put(intKI63.getKey(), intKI63);
+
+        AxKeyInfo floatKI01 = new AxKeyInfo(new AxArtifactKey("FloatKIKey01", "0.0.1"), UUID.randomUUID(), "IntegerKIKey01 description");
+        AxKeyInfo floatKI11 = new AxKeyInfo(new AxArtifactKey("FloatKIKey11", "0.0.1"), UUID.randomUUID(), "IntegerKIKey11 description");
+        AxKeyInfo floatKI21 = new AxKeyInfo(new AxArtifactKey("FloatKIKey21", "0.0.1"), UUID.randomUUID(), "IntegerKIKey21 description");
+        AxKeyInfo floatKI31 = new AxKeyInfo(new AxArtifactKey("FloatKIKey31", "0.0.1"), UUID.randomUUID(), "IntegerKIKey31 description");
+        AxKeyInfo floatKI41 = new AxKeyInfo(new AxArtifactKey("FloatKIKey41", "0.0.1"), UUID.randomUUID(), "IntegerKIKey41 description");
+        AxKeyInfo floatKI51 = new AxKeyInfo(new AxArtifactKey("FloatKIKey51", "0.0.1"), UUID.randomUUID(), "IntegerKIKey51 description");
+        AxKeyInfo floatKI61 = new AxKeyInfo(new AxArtifactKey("FloatKIKey61", "0.0.1"), UUID.randomUUID(), "IntegerKIKey61 description");
+        AxKeyInfo floatKI71 = new AxKeyInfo(new AxArtifactKey("FloatKIKey71", "0.0.1"), UUID.randomUUID(), "IntegerKIKey71 description");
+        AxKeyInfo floatKI81 = new AxKeyInfo(new AxArtifactKey("FloatKIKey81", "0.0.1"), UUID.randomUUID(), "IntegerKIKey81 description");
+        AxKeyInfo floatKI82 = new AxKeyInfo(new AxArtifactKey("FloatKIKey82", "0.0.2"), UUID.randomUUID(), "IntegerKIKey82 description");
+        AxKeyInfo floatKI83 = new AxKeyInfo(new AxArtifactKey("FloatKIKey83", "0.0.3"), UUID.randomUUID(), "IntegerKIKey83 description");
+        AxKeyInfo floatKI91 = new AxKeyInfo(new AxArtifactKey("FloatKIKey91", "0.0.1"), UUID.randomUUID(), "IntegerKIKey91 description");
+        AxKeyInfo floatKI92 = new AxKeyInfo(new AxArtifactKey("FloatKIKey92", "0.0.2"), UUID.randomUUID(), "IntegerKIKey92 description");
+        AxKeyInfo floatKI93 = new AxKeyInfo(new AxArtifactKey("FloatKIKey93", "0.0.3"), UUID.randomUUID(), "IntegerKIKey93 description");
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI11.getKey(), floatKI11);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI83.getKey(), floatKI83);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI51.getKey(), floatKI51);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI71.getKey(), floatKI71);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI21.getKey(), floatKI21);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI81.getKey(), floatKI81);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI92.getKey(), floatKI92);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI91.getKey(), floatKI91);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI01.getKey(), floatKI01);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI82.getKey(), floatKI82);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI61.getKey(), floatKI61);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI41.getKey(), floatKI41);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI31.getKey(), floatKI31);
+        basicModel.getKeyInformation().getKeyInfoMap().put(floatKI93.getKey(), floatKI93);
+
+        assertNull(basicModel.getKeyInformation().get("NonExistantKey", "0.0.6"));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey26", "0.0.6").equals(intKI26));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey62", "0.0.2").equals(intKI62));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey21", "0.0.1").equals(intKI21));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey61", "0.0.1").equals(intKI61));
+       
+        assertNull(basicModel.getKeyInformation().get("NonExistantKey"));
+       
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey01").equals(intKI01));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey11").equals(intKI11));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey26").equals(intKI26));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey31").equals(intKI31));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey41").equals(intKI41));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey54").equals(intKI54));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey64").equals(intKI64));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey71").equals(intKI71));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey81").equals(intKI81));
+        assertTrue(basicModel.getKeyInformation().get("IntegerKIKey91").equals(intKI91));
+       
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey01").equals(floatKI01));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey11").equals(floatKI11));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey21").equals(floatKI21));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey31").equals(floatKI31));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey41").equals(floatKI41));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey51").equals(floatKI51));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey61").equals(floatKI61));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey71").equals(floatKI71));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey83").equals(floatKI83));
+        assertTrue(basicModel.getKeyInformation().get("FloatKIKey93").equals(floatKI93));
+
+   
+        // Ensure marshalling and unmarshalling is OK
+        ApexModelReader<AxModel> modelReader = new ApexModelReader<AxModel>(AxModel.class);
+        ApexModelFileWriter<AxModel> modelWriter = new ApexModelFileWriter<AxModel>(true);
+       
+        modelReader.setValidateFlag(false);
+        modelWriter.setValidateFlag(false);
+       
+        File tempXMLFile = File.createTempFile("ApexModel", "xml");
+        modelWriter.apexModelWriteJSONFile(basicModel, AxModel.class, tempXMLFile.getCanonicalPath());
+       
+        FileInputStream xmlFileInputStream = new FileInputStream(tempXMLFile);
+        AxModel readXMLModel = modelReader.read(xmlFileInputStream);
+        xmlFileInputStream.close();
+        assertTrue(basicModel.equals(readXMLModel));
+        assertTrue(readXMLModel.getKeyInformation().get("IntegerKIKey91").equals(intKI91));
+        assertNotNull(readXMLModel.getKeyInformation().get("FloatKIKey"));
+        tempXMLFile.delete();
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestExceptions.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestExceptions.java
new file mode 100644
index 000000000..0dd271f98
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestExceptions.java
@@ -0,0 +1,44 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.IOException;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.handling.ApexModelException;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestExceptions {
+
+    @Test
+    public void test() {
+        assertNotNull(new ApexModelException("Message"));
+        assertNotNull(new ApexModelException("Message", new IOException()));
+
+        ApexModelException ame = new ApexModelException("Message", new IOException("IO exception message"));
+        assertEquals("Message\ncaused by: Message\ncaused by: IO exception message", ame.getCascadedMessage());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelFileWriter.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelFileWriter.java
new file mode 100644
index 000000000..c2116a1d2
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelFileWriter.java
@@ -0,0 +1,131 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.handling.ApexModelFileWriter;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestModelFileWriter {
+
+    @Test
+    public void testModelFileWriter() throws IOException, ApexException {
+        AxModel model = new TestApexBasicModelCreator().getModel();
+
+        ApexModelFileWriter<AxModel> modelFileWriter = new ApexModelFileWriter<>(true);
+
+        modelFileWriter.setValidateFlag(true);
+        assertTrue(modelFileWriter.isValidateFlag());
+
+        File tempFile = File.createTempFile("ApexFileWriterTest", "test");
+        File tempDir = tempFile.getParentFile();
+        tempFile.delete();
+        
+        File jsonTempFile = new File(tempDir.getAbsolutePath() + "/aaa/ApexFileWriterTest.json");
+        File xmlTempFile = new File(tempDir.getAbsolutePath() + "/ccc/ApexFileWriterTest.xml");
+        
+        modelFileWriter.apexModelWriteJSONFile(model, AxModel.class, jsonTempFile.getAbsolutePath());
+
+        modelFileWriter.apexModelWriteXMLFile(model, AxModel.class, xmlTempFile.getAbsolutePath());
+        
+        jsonTempFile.delete();
+        xmlTempFile.delete();
+        new File(tempDir.getAbsolutePath() + "/aaa").delete();
+        new File(tempDir.getAbsolutePath() + "/ccc").delete();
+       
+        jsonTempFile = new File(tempDir.getAbsolutePath() + "/aaa/bbb/ApexFileWriterTest.json");
+        xmlTempFile = new File(tempDir.getAbsolutePath() + "/ccc/ddd/ApexFileWriterTest.xml");
+        
+        modelFileWriter.apexModelWriteJSONFile(model, AxModel.class, jsonTempFile.getAbsolutePath());
+        modelFileWriter.apexModelWriteXMLFile(model, AxModel.class, xmlTempFile.getAbsolutePath());
+                
+        jsonTempFile.delete();
+        xmlTempFile.delete();
+
+        new File(tempDir.getAbsolutePath() + "/aaa/bbb").delete();
+        new File(tempDir.getAbsolutePath() + "/aaa").delete();
+        new File(tempDir.getAbsolutePath() + "/ccc/ddd").delete();
+        new File(tempDir.getAbsolutePath() + "/ccc").delete();
+        
+        File dirA = new File(tempDir.getAbsolutePath() + "/aaa");
+        //File dirB = new File(tempDir.getAbsolutePath() + "/aaa/bbb");
+        dirA.createNewFile();
+        //dirB.createNewFile();
+        
+        jsonTempFile = new File(tempDir.getAbsolutePath() + "/aaa/bbb/ApexFileWriterTest.json");
+        jsonTempFile = new File(tempDir.getAbsolutePath() + "/aaa/bbb/ApexFileWriterTest.xml");
+
+        try {
+            modelFileWriter.apexModelWriteJSONFile(model, AxModel.class, jsonTempFile.getAbsolutePath());
+            fail("this test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().contains("could not create directory "));
+        }
+
+        try {
+            modelFileWriter.apexModelWriteXMLFile(model, AxModel.class, jsonTempFile.getAbsolutePath());
+            fail("this test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().contains("could not create directory "));
+        }
+
+        dirA.delete();
+
+        dirA = new File(tempDir.getAbsolutePath() + "/aaa");
+        File fileB = new File(tempDir.getAbsolutePath() + "/aaa/bbb");
+        dirA.mkdir();
+        fileB.createNewFile();
+        
+        jsonTempFile = new File(tempDir.getAbsolutePath() + "/aaa/bbb/ApexFileWriterTest.json");
+        jsonTempFile = new File(tempDir.getAbsolutePath() + "/aaa/bbb/ApexFileWriterTest.xml");
+
+        try {
+            modelFileWriter.apexModelWriteJSONFile(model, AxModel.class, jsonTempFile.getAbsolutePath());
+            fail("this test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().contains("error processing file "));
+        }
+
+        try {
+            modelFileWriter.apexModelWriteXMLFile(model, AxModel.class, jsonTempFile.getAbsolutePath());
+            fail("this test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().contains("error processing file "));
+        }
+
+        fileB.delete();
+        dirA.delete();
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelReader.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelReader.java
new file mode 100644
index 000000000..134f6ff89
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelReader.java
@@ -0,0 +1,155 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileReader;
+import java.io.IOException;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.handling.ApexModelReader;
+import org.onap.apex.model.basicmodel.handling.ApexModelWriter;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestModelReader {
+
+    @Test
+    public void testModelReader() throws IOException, ApexException {
+        AxModel model = new TestApexBasicModelCreator().getModel();
+        AxModel invalidModel = new TestApexBasicModelCreator().getInvalidModel();
+        
+        ApexModelWriter<AxModel> modelWriter = new ApexModelWriter<AxModel>(AxModel.class);
+        modelWriter.setValidateFlag(true);
+        modelWriter.setJsonOutput(true);
+        
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        modelWriter.write(model, baos);
+        
+        ByteArrayOutputStream baosInvalid = new ByteArrayOutputStream();
+        modelWriter.setValidateFlag(false);
+        modelWriter.write(invalidModel, baosInvalid);
+        
+        ApexModelReader<AxModel> modelReader = new ApexModelReader<AxModel>(AxModel.class, true);
+        
+        modelReader.setValidateFlag(true);
+        assertTrue(modelReader.getValidateFlag());
+        
+        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+        AxModel readModel = modelReader.read(bais);
+        assertEquals(model, readModel);
+        
+        ByteArrayInputStream baisInvalid = new ByteArrayInputStream(baosInvalid.toByteArray());
+        try {
+            modelReader.read(baisInvalid);
+            fail("test should throw an exceptino here");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().startsWith("Apex concept validation failed"));
+        }
+        
+        modelReader.setValidateFlag(false);
+        assertFalse(modelReader.getValidateFlag());
+        
+        ByteArrayInputStream bais2 = new ByteArrayInputStream(baos.toByteArray());
+        AxModel readModel2 = modelReader.read(bais2);
+        assertEquals(model, readModel2);
+        
+        modelWriter.setJsonOutput(false);
+        
+        ByteArrayOutputStream baosXML = new ByteArrayOutputStream();
+        modelWriter.write(model, baosXML);
+        
+        ByteArrayInputStream baisXML = new ByteArrayInputStream(baosXML.toByteArray());
+        AxModel readModelXML = modelReader.read(baisXML);
+        assertEquals(model, readModelXML);
+        
+        String dummyString = "SomeDummyText";
+        ByteArrayInputStream baisDummy = new ByteArrayInputStream(dummyString.getBytes());
+        try {
+            modelReader.read(baisDummy);
+            fail("test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("format of input for Apex concept is neither JSON nor XML", e.getMessage());
+        }
+        
+        try {
+            ByteArrayInputStream nullBais = null;
+            modelReader.read(nullBais);
+            fail("test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("concept stream may not be null", e.getMessage());
+        }
+        
+        try {
+            FileInputStream fis = new FileInputStream(new File("somewhere/over/the/rainbow"));
+            modelReader.read(fis);
+            fail("test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertTrue(e.getMessage().contains("rainbow"));
+        }
+        
+        File tempFile = File.createTempFile("Apex", "Dummy");
+        try {
+            BufferedReader br = new BufferedReader(new FileReader(tempFile));
+            br.close();
+            modelReader.read(br);
+            fail("test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("Unable to read Apex concept ", e.getMessage());
+        }
+        finally {
+            tempFile.delete();
+        }
+        
+        modelReader.setSchema(null);
+        
+        tempFile = File.createTempFile("Apex", "Dummy");
+        try {
+            modelReader.setSchema(tempFile.getCanonicalPath());
+            fail("test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("Unable to load schema", e.getMessage());
+        }
+        finally {
+            tempFile.delete();
+        }
+        
+        modelReader.setSchema("xml/example.xsd");
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelSaver.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelSaver.java
new file mode 100644
index 000000000..182d341aa
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelSaver.java
@@ -0,0 +1,53 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.handling.ApexModelSaver;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestModelSaver {
+
+    @Test
+    public void testModelSaver() throws IOException, ApexException {
+        AxModel model = new TestApexBasicModelCreator().getModel();
+        
+        Path tempPath = Files.createTempDirectory("ApexTest");
+        
+        ApexModelSaver<AxModel> modelSaver = new ApexModelSaver<AxModel>(AxModel.class, model, tempPath.toAbsolutePath().toString());
+        
+        modelSaver.apexModelWriteXML();
+        modelSaver.apexModelWriteJSON();
+        
+        Files.deleteIfExists(new File(tempPath.toAbsolutePath() + "/BasicModel.json").toPath());
+        Files.deleteIfExists(new File(tempPath.toAbsolutePath() + "/BasicModel.xml").toPath());
+        Files.deleteIfExists(tempPath);
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelStringWriter.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelStringWriter.java
new file mode 100644
index 000000000..2f4fcd2c7
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelStringWriter.java
@@ -0,0 +1,99 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.IOException;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInfo;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.handling.ApexModelStringWriter;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestModelStringWriter {
+
+    @Test
+    public void testModelStringWriter() throws IOException, ApexException {
+        AxModel basicModel = new TestApexBasicModelCreator().getModel();
+        assertNotNull(basicModel);
+       
+        AxKeyInfo intKI   = basicModel.getKeyInformation().get("IntegerKIKey");
+        AxKeyInfo floatKI = basicModel.getKeyInformation().get("FloatKIKey");
+
+        // Ensure marshalling is OK
+        ApexModelStringWriter<AxKeyInfo> stringWriter = new ApexModelStringWriter<AxKeyInfo>(true);
+        
+        assertNotNull(stringWriter.writeJSONString(intKI,   AxKeyInfo.class));
+        assertNotNull(stringWriter.writeJSONString(floatKI, AxKeyInfo.class));
+       
+        assertNotNull(stringWriter.writeString(intKI,   AxKeyInfo.class, true));
+        assertNotNull(stringWriter.writeString(floatKI, AxKeyInfo.class, true));
+       
+        assertNotNull(stringWriter.writeString(intKI,   AxKeyInfo.class, false));
+        assertNotNull(stringWriter.writeString(floatKI, AxKeyInfo.class, false));
+        
+        assertNotNull(stringWriter.writeXMLString(intKI,   AxKeyInfo.class));
+        assertNotNull(stringWriter.writeXMLString(floatKI, AxKeyInfo.class));
+        
+        try {
+            stringWriter.writeString(null, AxKeyInfo.class, true);
+            fail("test should thrown an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("concept may not be null", e.getMessage());
+        }
+        
+        try {
+            stringWriter.writeString(null, AxKeyInfo.class, false);
+            fail("test should thrown an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("concept may not be null", e.getMessage());
+        }
+        
+        try {
+            stringWriter.writeJSONString(null, AxKeyInfo.class);
+            fail("test should thrown an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("error writing JSON string", e.getMessage());
+        }
+        
+        try {
+            stringWriter.writeXMLString(null, AxKeyInfo.class);
+            fail("test should thrown an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("error writing XML string", e.getMessage());
+        }
+        
+        stringWriter.setValidateFlag(true);
+        assertTrue(stringWriter.isValidateFlag());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelWriter.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelWriter.java
new file mode 100644
index 000000000..a21c148b6
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestModelWriter.java
@@ -0,0 +1,98 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.ApexException;
+import org.onap.apex.model.basicmodel.concepts.AxModel;
+import org.onap.apex.model.basicmodel.handling.ApexModelWriter;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestModelWriter {
+
+    @Test
+    public void testModelWriter() throws IOException, ApexException {
+        AxModel model = new TestApexBasicModelCreator().getModel();
+        
+        ApexModelWriter<AxModel> modelWriter = new ApexModelWriter<AxModel>(AxModel.class);
+        
+        modelWriter.setValidateFlag(true);
+        assertTrue(modelWriter.getValidateFlag());
+        assertEquals(0, modelWriter.getCDataFieldSet().size());
+        
+        assertFalse(modelWriter.isJsonOutput());
+        modelWriter.setJsonOutput(true);
+        assertTrue(modelWriter.isJsonOutput());
+        modelWriter.setJsonOutput(false);
+        assertFalse(modelWriter.isJsonOutput());
+        
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+        modelWriter.write(model, baos);
+        modelWriter.setJsonOutput(true);
+        modelWriter.write(model, baos);
+        modelWriter.setJsonOutput(false);
+        
+        modelWriter.setValidateFlag(false);
+        modelWriter.write(model, baos);
+        modelWriter.setJsonOutput(true);
+        modelWriter.write(model, baos);
+        modelWriter.setJsonOutput(false);
+        
+        modelWriter.setValidateFlag(true);
+        model.getKeyInformation().getKeyInfoMap().clear();
+        try {
+            modelWriter.write(model, baos);
+            fail("Test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("Apex concept xml (BasicModel:0.0.1) validation failed", e.getMessage());
+        }
+        model.getKeyInformation().generateKeyInfo(model);
+
+        try {
+            modelWriter.write(null, baos);
+            fail("Test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("concept may not be null", e.getMessage());
+        }
+        
+        try {
+            ByteArrayOutputStream nullBaos = null;
+            modelWriter.write(model, nullBaos);
+            fail("Test should throw an exception here");
+        }
+        catch (Exception e) {
+            assertEquals("concept stream may not be null", e.getMessage());
+        }
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestSchemaGenerator.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestSchemaGenerator.java
new file mode 100644
index 000000000..2e10b51b6
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/handling/TestSchemaGenerator.java
@@ -0,0 +1,93 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.handling;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.handling.ApexSchemaGenerator;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestSchemaGenerator {
+
+    @Test
+    public void test() throws IOException {
+        final ByteArrayOutputStream baos0 = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(baos0));
+        
+        final String[] args0 = {};
+        ApexSchemaGenerator.main(args0);
+        assertTrue(baos0.toString().contains("usage: ApexSchemaGenerator apex-root-class [schema-file-name]"));
+        System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
+        
+        final ByteArrayOutputStream baos1 = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(baos1));
+        
+        final String[] args1 = {"hello", "goodbye", "here"};
+        ApexSchemaGenerator.main(args1);
+        assertTrue(baos1.toString().contains("usage: ApexSchemaGenerator apex-root-class [schema-file-name]"));
+        System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
+        
+        final ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(baos2));
+        
+        final String[] args2 = {"hello", "goodbye"};
+        ApexSchemaGenerator.main(args2);
+        assertTrue(baos2.toString().contains("error on Apex schema output"));
+        System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
+        
+        final ByteArrayOutputStream baos3 = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(baos3));
+        
+        final String[] args3 = {"hello"};
+        ApexSchemaGenerator.main(args3);
+        assertTrue(baos3.toString().contains("could not create JAXB context, root class hello not found"));
+        System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
+        
+        final ByteArrayOutputStream baos4 = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(baos4));
+        
+        final String[] args4 = {"org.onap.apex.model.basicmodel.concepts.AxModel"};
+        ApexSchemaGenerator.main(args4);
+        assertTrue(baos4.toString().contains("targetNamespace=\"http://www.ericsson.com/apex\""));
+        System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
+        
+        final ByteArrayOutputStream baos5 = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(baos5));
+        
+        final File tempFile = File.createTempFile("ApexSchemaGeneratorTest", "xsd");
+        final String[] args5 = {"org.onap.apex.model.basicmodel.concepts.AxModel", tempFile.getCanonicalPath()};
+        
+        ApexSchemaGenerator.main(args5);
+        assertTrue(tempFile.length() > 100);
+        System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
+        tempFile.delete();
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/IllegalParameters.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/IllegalParameters.java
new file mode 100644
index 000000000..3cb4808bf
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/IllegalParameters.java
@@ -0,0 +1,32 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.service;
+
+import org.onap.apex.model.basicmodel.service.AbstractParameters;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class IllegalParameters extends AbstractParameters {
+    public IllegalParameters() {
+        super("somewhere.over.the.rainbow");
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/LegalParameters.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/LegalParameters.java
new file mode 100644
index 000000000..2bab6fd2a
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/LegalParameters.java
@@ -0,0 +1,32 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.service;
+
+import org.onap.apex.model.basicmodel.service.AbstractParameters;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class LegalParameters extends AbstractParameters {
+    public LegalParameters() {
+        super(LegalParameters.class.getCanonicalName());
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestAbstractParameters.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestAbstractParameters.java
new file mode 100644
index 000000000..e9a0e2f0a
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestAbstractParameters.java
@@ -0,0 +1,51 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.service;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.fail;
+
+import org.junit.Test;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestAbstractParameters {
+
+    @Test
+    public void testAbstractParameters() {
+        final LegalParameters parameters = new LegalParameters();
+        assertNotNull(parameters);
+        assertEquals("AbstractParameters [parameterClassName=org.onap.apex.model.basicmodel.service.LegalParameters]", parameters.toString());
+
+        assertEquals(LegalParameters.class, parameters.getParameterClass());
+        assertEquals("org.onap.apex.model.basicmodel.service.LegalParameters", parameters.getParameterClassName());
+        
+        try {
+            new IllegalParameters();
+            fail("test should throw an exception here");
+        }
+        catch (final Exception e) {
+            assertEquals("class \"somewhere.over.the.rainbow\" not found or not an instance of \"org.onap.apex.model.basicmodel.service.IllegalParameters\"", e.getMessage());
+        }
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestModelService.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestModelService.java
new file mode 100644
index 000000000..51af9baaf
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestModelService.java
@@ -0,0 +1,78 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.service;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxKeyInformation;
+import org.onap.apex.model.basicmodel.handling.TestApexBasicModelCreator;
+import org.onap.apex.model.basicmodel.service.ModelService;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestModelService {
+
+    @Test
+    public void testModelService() {
+        ModelService.clear();
+
+        assertFalse(ModelService.existsModel(AxKeyInformation.class));
+        try {
+            ModelService.getModel(AxKeyInformation.class);
+        }
+        catch (Exception e) {
+            assertEquals("Model for org.onap.apex.model.basicmodel.concepts.AxKeyInformation not found in model service", e.getMessage());
+        }
+        
+        ModelService.registerModel(AxKeyInformation.class, new TestApexBasicModelCreator().getModel().getKeyInformation());
+        assertTrue(ModelService.existsModel(AxKeyInformation.class));
+        assertNotNull(ModelService.getModel(AxKeyInformation.class));
+        
+        ModelService.deregisterModel(AxKeyInformation.class);
+       
+        assertFalse(ModelService.existsModel(AxKeyInformation.class));
+        try {
+            ModelService.getModel(AxKeyInformation.class);
+        }
+        catch (Exception e) {
+            assertEquals("Model for org.onap.apex.model.basicmodel.concepts.AxKeyInformation not found in model service", e.getMessage());
+        }
+
+        ModelService.registerModel(AxKeyInformation.class, new TestApexBasicModelCreator().getModel().getKeyInformation());
+        assertTrue(ModelService.existsModel(AxKeyInformation.class));
+        assertNotNull(ModelService.getModel(AxKeyInformation.class));
+        
+        ModelService.clear();
+        assertFalse(ModelService.existsModel(AxKeyInformation.class));
+        try {
+            ModelService.getModel(AxKeyInformation.class);
+        }
+        catch (Exception e) {
+            assertEquals("Model for org.onap.apex.model.basicmodel.concepts.AxKeyInformation not found in model service", e.getMessage());
+        }
+
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestParameterService.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestParameterService.java
new file mode 100644
index 000000000..ff2a9c876
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/service/TestParameterService.java
@@ -0,0 +1,77 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.service;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.service.ParameterService;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestParameterService {
+
+    @Test
+    public void testParameterService() {
+        ParameterService.clear();
+
+        assertFalse(ParameterService.existsParameters(LegalParameters.class));
+        try {
+            ParameterService.getParameters(LegalParameters.class);
+        }
+        catch (final Exception e) {
+            assertEquals("Parameters for org.onap.apex.model.basicmodel.service.LegalParameters not found in parameter service", e.getMessage());
+        }
+        
+        ParameterService.registerParameters(LegalParameters.class, new LegalParameters());
+        assertTrue(ParameterService.existsParameters(LegalParameters.class));
+        assertNotNull(ParameterService.getParameters(LegalParameters.class));
+        
+        ParameterService.deregisterParameters(LegalParameters.class);
+       
+        assertFalse(ParameterService.existsParameters(LegalParameters.class));
+        try {
+            ParameterService.getParameters(LegalParameters.class);
+        }
+        catch (final Exception e) {
+            assertEquals("Parameters for org.onap.apex.model.basicmodel.service.LegalParameters not found in parameter service", e.getMessage());
+        }
+
+        ParameterService.registerParameters(LegalParameters.class, new LegalParameters());
+        assertTrue(ParameterService.existsParameters(LegalParameters.class));
+        assertNotNull(ParameterService.getParameters(LegalParameters.class));
+        
+        assertNotNull(ParameterService.getAll());
+        ParameterService.clear();
+        assertFalse(ParameterService.existsParameters(LegalParameters.class));
+        try {
+            ParameterService.getParameters(LegalParameters.class);
+        }
+        catch (final Exception e) {
+            assertEquals("Parameters for org.onap.apex.model.basicmodel.service.LegalParameters not found in parameter service", e.getMessage());
+        }
+        
+    }
+}
diff --git a/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/xml/TestAxReferenceKeyAdapter.java b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/xml/TestAxReferenceKeyAdapter.java
new file mode 100644
index 000000000..b723439b5
--- /dev/null
+++ b/model/basic-model/src/test/java/org/onap/apex/model/basicmodel/xml/TestAxReferenceKeyAdapter.java
@@ -0,0 +1,46 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.apex.model.basicmodel.xml;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.Test;
+import org.onap.apex.model.basicmodel.concepts.AxReferenceKey;
+import org.onap.apex.model.basicmodel.xml.AxReferenceKeyAdapter;
+
+/**
+ * @author Liam Fallon (liam.fallon@ericsson.com)
+ */
+public class TestAxReferenceKeyAdapter {
+
+    @Test
+    public void test() throws Exception {
+        AxReferenceKeyAdapter arka = new AxReferenceKeyAdapter();
+        assertNotNull(arka);
+        
+        AxReferenceKey rKey = new AxReferenceKey("Name", "0.0.1", "PLN", "LN");
+        
+        String rKeyString = arka.marshal(rKey);
+        assertEquals("LN", rKeyString);
+        assertEquals(rKey.getLocalName(),arka.unmarshal(rKeyString).getLocalName());
+    }
+}