Adding naming micro-service code - tests.

Unit tests.

Change-Id: I14176a8b47764d5e308258fd9b24bf3e301d04d5
Issue-ID: CCSDK-342
Signed-off-by: BT2983 <BT2983@att.com>

10 files changed, 1296 insertions, 0 deletions

diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyEarlierTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyEarlierTest.java
new file mode 100644
index 00000000..ccbd4913
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyEarlierTest.java
@@ -0,0 +1,126 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorDependencyEarlierTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+
+    protected Map<String, String> makeVnfRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("complex", "abcdeasdf");
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("nf-naming-code", "ve1");
+        requestElement.put("resource-name", "vnf-name");
+        return requestElement;
+    }
+
+    protected Map<String, String> makeVmRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "923456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("naming-type", "VM");
+        requestElement.put("resource-name", "vm-name");
+        return requestElement;
+    }
+
+    /**
+     * Setup params related data.
+     */
+    @Before
+    public void setupPolicyParams() throws Exception {
+        when(policyParams.mapFunction("substr")).thenReturn("substring");
+        when(policyParams.mapFunction("to_lower_case")).thenReturn("toLowerCase");
+        when(policyParams.mapFunction("to_upper_case")).thenReturn("toUpperCase");
+    }
+
+    @Test
+    public void generate() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy";
+        Map<String, String> requestElement1 = makeVnfRequest(policyName);
+        Map<String, String> requestElement2 = makeVmRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement1);
+        allElements.add(requestElement2);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_and_vm_policy.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), anyInt())).thenReturn(1L);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement1, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp = gen.generate();
+        assertEquals("vnf-name", resp.get("resource-name"));
+        assertEquals("123456", resp.get("external-key"));
+        assertEquals("abcde001ve1", resp.get("resource-value"));
+
+        NameGenerator gen2 = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement2, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp2 = gen2.generate();
+        assertEquals("vm-name", resp2.get("resource-name"));
+        assertEquals("923456", resp2.get("external-key"));
+        assertEquals("abcde001ve1mts001", resp2.get("resource-value"));
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyLaterTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyLaterTest.java
new file mode 100644
index 00000000..009db5da
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyLaterTest.java
@@ -0,0 +1,125 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorDependencyLaterTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    protected Map<String, String> makeVnfRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("complex", "abcdeasdf");
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("nf-naming-code", "ve1");
+        requestElement.put("resource-name", "vnf-name");
+        return requestElement;
+    }
+
+    protected Map<String, String> makeVmRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "923456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("naming-type", "VM");
+        requestElement.put("resource-name", "vm-name");
+        return requestElement;
+    }
+
+    /**
+     * Setup params related data.
+     */
+    @Before
+    public void setupPolicyParams() throws Exception {
+        when(policyParams.mapFunction("substr")).thenReturn("substring");
+        when(policyParams.mapFunction("to_lower_case")).thenReturn("toLowerCase");
+        when(policyParams.mapFunction("to_upper_case")).thenReturn("toUpperCase");
+    }
+
+    @Test
+    public void generate() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy";
+        Map<String, String> requestElement1 = makeVmRequest(policyName);
+        Map<String, String> requestElement2 = makeVnfRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement1);
+        allElements.add(requestElement2);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_and_vm_policy.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), anyInt())).thenReturn(1L);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement1, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp = gen.generate();
+        assertEquals("vm-name", resp.get("resource-name"));
+        assertEquals("923456", resp.get("external-key"));
+        assertEquals("abcde001ve1mts001", resp.get("resource-value"));
+
+        NameGenerator gen2 = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement2, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp2 = gen2.generate();
+        assertEquals("vnf-name", resp2.get("resource-name"));
+        assertEquals("123456", resp2.get("external-key"));
+        assertEquals("abcde001ve1", resp2.get("resource-value"));
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyOnUnnamedTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyOnUnnamedTest.java
new file mode 100644
index 00000000..e4f3ddc2
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorDependencyOnUnnamedTest.java
@@ -0,0 +1,136 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.stubbing.Answer;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+import org.onap.ccsdk.apps.ms.neng.persistence.entity.GeneratedName;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorDependencyOnUnnamedTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    /**
+     * Setup policy params.
+     */
+    @Before
+    public void setupPolicyParams() throws Exception {
+        when(policyParams.mapFunction("substr")).thenReturn("substring");
+        when(policyParams.mapFunction("to_lower_case")).thenReturn("toLowerCase");
+        when(policyParams.mapFunction("to_upper_case")).thenReturn("toUpperCase");
+    }
+
+    protected Map<String, String> makeVmRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "923456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("naming-type", "VM");
+        requestElement.put("resource-name", "vm-name");
+        requestElement.put("complex", "abcdeasdf");
+        return requestElement;
+    }
+
+    @Test
+    public void generate() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy";
+        Map<String, String> requestElement2 = makeVmRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement2);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_and_vm_policy.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), anyInt())).thenReturn(1L);
+
+        final List<Object> savedNames = new ArrayList<>();
+        doAnswer(new Answer<Void>() {
+            @Override
+            public Void answer(InvocationOnMock invocation) throws Throwable {
+                savedNames.add(invocation.getArguments()[0]);
+                return null;
+            }
+        }).when(namePresister).persist(anyObject());
+
+        NameGenerator gen2 = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement2, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp2 = gen2.generate();
+        assertEquals("vm-name", resp2.get("resource-name"));
+        assertEquals("923456", resp2.get("external-key"));
+        assertEquals("abcde001ve1mts001", resp2.get("resource-value"));
+
+        assertEquals(2, savedNames.size());
+
+        assertEquals("abcde001ve1", ((GeneratedName) savedNames.get(0)).getName());
+        assertEquals(null, ((GeneratedName) savedNames.get(0)).getExternalId());
+        assertEquals("VNF", ((GeneratedName) savedNames.get(0)).getElementType());
+        assertEquals("abcde", ((GeneratedName) savedNames.get(0)).getPrefix());
+        assertEquals(1, ((GeneratedName) savedNames.get(0)).getSequenceNumber().longValue());
+        assertEquals("001", ((GeneratedName) savedNames.get(0)).getSequenceNumberEnc());
+        assertEquals("ve1", ((GeneratedName) savedNames.get(0)).getSuffix());
+
+        assertEquals("abcde001ve1mts001", ((GeneratedName) savedNames.get(1)).getName());
+        assertEquals("923456", ((GeneratedName) savedNames.get(1)).getExternalId());
+        assertEquals("VM", ((GeneratedName) savedNames.get(1)).getElementType());
+        assertEquals("abcde001ve1mts", ((GeneratedName) savedNames.get(1)).getPrefix());
+        assertEquals(1, ((GeneratedName) savedNames.get(1)).getSequenceNumber().longValue());
+        assertEquals("001", ((GeneratedName) savedNames.get(1)).getSequenceNumberEnc());
+        assertEquals(null, ((GeneratedName) savedNames.get(1)).getSuffix());
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorExcMissingData.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorExcMissingData.java
new file mode 100644
index 00000000..4b1d1eac
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorExcMissingData.java
@@ -0,0 +1,268 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorExcMissingData {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    protected Map<String, String> makeOneRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("complex", "dlstxasdf");
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("nf-naming-code", "ve1");
+        requestElement.put("resource-name", "vnf-name");
+        return requestElement;
+    }
+
+    @Test
+    public void missingPolicy() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        when(policyFinder.findPolicy(policyName)).thenReturn(null);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find the policy data for SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq",
+                            e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingPolicyData() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find the policy data for SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq "
+                            + "and naming-type VNF",
+                            e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingPolicyName() throws Exception {
+        String policyName = null;
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find policy name in the request", e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingNamingType() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        requestElement.remove("naming-type");
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find naming type in the request for policy "
+                            + "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq",
+                            e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingRecipe() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("bad_policy_missing_recipe.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), anyInt())).thenReturn(1L);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find the recipe for SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq "
+                            + "and naming-type VNF",
+                            e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingRecipeOneField() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        requestElement.remove("complex");
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_policy_seq.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find data for recipe item COMPLEX in policy "
+                            + "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq "
+                            + "and naming-type VNF", e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingRecipeMultipleFields() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        requestElement.remove("complex");
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("long_policy.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find data for recipe items COMPLEX, Field2, Field3 and Field4 in policy "
+                            + "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq "
+                            + "and naming-type VNF", e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void missingRecipeTwoFields() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        requestElement.put("Field2", "f2");
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("long_policy.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not find data for recipe items Field3 and Field4 in policy "
+                            + "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq "
+                            + "and naming-type VNF", e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorNoSequenceTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorNoSequenceTest.java
new file mode 100644
index 00000000..e46ab083
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorNoSequenceTest.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorNoSequenceTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    protected Map<String, String> makeOneRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("complex", "dlstx");
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("nf-naming-code", "ve1");
+        requestElement.put("resource-name", "vnf-name");
+        return requestElement;
+    }
+
+    @Test
+    public void generate() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFCNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_policy_no_seq.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp = gen.generate();
+        assertEquals("vnf-name", resp.get("resource-name"));
+        assertEquals("123456", resp.get("external-key"));
+        assertEquals("dlstxxyz", resp.get("resource-value"));
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSeqGenErrorsTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSeqGenErrorsTest.java
new file mode 100644
index 00000000..46f1e942
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSeqGenErrorsTest.java
@@ -0,0 +1,227 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.mockito.stubbing.Answer;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+import org.onap.ccsdk.apps.ms.neng.persistence.entity.GeneratedName;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorSeqGenErrorsTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    protected Map<String, String> makeVmRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "923456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("naming-type", "VM");
+        requestElement.put("resource-name", "vm-name");
+        requestElement.put("complex", "abcdeasdf");
+        return requestElement;
+    }
+
+    protected Map<String, String> makeVnfRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("resource-name", "vnf-name");
+        requestElement.put("complex", "abcdeasdf");
+        return requestElement;
+    }
+
+    /**
+     * Setup policy params.
+     */
+    @Before
+    public void setupPolicyParams() throws Exception {
+        when(policyParams.mapFunction("substr")).thenReturn("substring");
+        when(policyParams.mapFunction("to_lower_case")).thenReturn("toLowerCase");
+        when(policyParams.mapFunction("to_upper_case")).thenReturn("toUpperCase");
+    }
+
+    @Test
+    public void someNamesRejectedByAai() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy";
+        Map<String, String> requestElement2 = makeVmRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement2);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_and_vm_policy.json").getPolicy();
+        when(policyParams.getMaxGenAttempt()).thenReturn(100);
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(aaiValidator.validate(eq("VNF"), anyObject())).thenReturn(true);
+        when(aaiValidator.validate(eq("VNF"), eq("abcde001ve1"))).thenReturn(false);
+
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(1))).thenReturn(1L);
+        when(sequenceGenerator.generate(eq("abcde"), anyObject(), anyObject(), anyObject(), eq(2))).thenReturn(2L);
+
+        final List<Object> savedNames = new ArrayList<>();
+        doAnswer(new Answer<Void>() {
+            @Override
+            public Void answer(InvocationOnMock invocation) throws Throwable {
+                savedNames.add(invocation.getArguments()[0]);
+                return null;
+            }
+        }).when(namePresister).persist(anyObject());
+
+        NameGenerator gen2 = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement2, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp2 = gen2.generate();
+        assertEquals("vm-name", resp2.get("resource-name"));
+        assertEquals("923456", resp2.get("external-key"));
+        assertEquals("abcde002ve1mts001", resp2.get("resource-value"));
+
+        assertEquals(3, savedNames.size());
+
+        {
+            GeneratedName genName = (GeneratedName) savedNames.get(0);
+            assertEquals("abcde001ve1", genName.getName());
+            assertEquals("AAI-BACKPOPULATE", genName.getExternalId());
+            assertEquals("VNF", genName.getElementType());
+            assertEquals("abcde", genName.getPrefix());
+            assertEquals(1, genName.getSequenceNumber().longValue());
+            assertEquals("001", genName.getSequenceNumberEnc());
+            assertEquals("ve1", genName.getSuffix());
+        }
+        {
+            GeneratedName genName = (GeneratedName) savedNames.get(1);
+            assertEquals("abcde002ve1", genName.getName());
+            assertEquals(null, genName.getExternalId());
+            assertEquals("VNF", genName.getElementType());
+            assertEquals("abcde", genName.getPrefix());
+            assertEquals(2, genName.getSequenceNumber().longValue());
+            assertEquals("002", genName.getSequenceNumberEnc());
+            assertEquals("ve1", genName.getSuffix());
+
+        }
+        {
+            GeneratedName genName = (GeneratedName) savedNames.get(2);
+            assertEquals("abcde002ve1mts001", genName.getName());
+            assertEquals("923456", genName.getExternalId());
+            assertEquals("VM", genName.getElementType());
+            assertEquals("abcde002ve1mts", genName.getPrefix());
+            assertEquals(1, genName.getSequenceNumber().longValue());
+            assertEquals("001", genName.getSequenceNumberEnc());
+            assertEquals(null, genName.getSuffix());
+
+        }
+    }
+
+    @Test
+    public void allRejected() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy";
+        Map<String, String> requestElement2 = makeVmRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement2);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_and_vm_policy.json").getPolicy();
+        when(policyParams.getMaxGenAttempt()).thenReturn(3);
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(false);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(1))).thenReturn(1L);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(2))).thenReturn(2L);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(3))).thenReturn(3L);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement2, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not generate a name successfully for policy "
+                            + "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy and naming-type VNF "
+                            + "even after 3 attempts.", e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+
+    @Test
+    public void allRejectedSequenceLess() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy";
+        Map<String, String> requestElement2 = makeVnfRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement2);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_policy_no_seq.json").getPolicy();
+        when(policyParams.getMaxGenAttempt()).thenReturn(3);
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(false);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement2, allElements, earlierNames, policyCache);
+
+        try {
+            gen.generate();
+            fail("Expecting exception");
+        } catch (Exception e) {
+            assertEquals("Could not generate a valid name successfully for policy "
+                            + "SDNC_Policy.Config_MS_VNF_VM_NamingPolicy "
+                            + "and naming-type VNF. DB Name validation failed", e.getMessage());
+            return;
+        }
+        fail("Expecting exception");
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSequenceMultiTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSequenceMultiTest.java
new file mode 100644
index 00000000..41f0531a
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSequenceMultiTest.java
@@ -0,0 +1,114 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorSequenceMultiTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    protected Map<String, String> makeOneRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("complex", "abcdeasdf");
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("nf-naming-code", "ve1");
+        requestElement.put("resource-name", "vnf-name");
+        return requestElement;
+    }
+
+    /**
+     * Setup for policy params.
+     */
+    @Before
+    public void setupPolicyParams() throws Exception {
+        when(policyParams.mapFunction("substr")).thenReturn("substring");
+        when(policyParams.mapFunction("to_lower_case")).thenReturn("toLowerCase");
+        when(policyParams.mapFunction("to_upper_case")).thenReturn("toUpperCase");
+    }
+
+    @Test
+    public void generate() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFCNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_policy_seq.json").getPolicy();
+        when(policyParams.getMaxGenAttempt()).thenReturn(100);
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), eq("abcde001ve1"))).thenReturn(false);
+        when(dbValidator.validate(anyObject(), eq("abcde002ve1"))).thenReturn(false);
+        when(dbValidator.validate(anyObject(), eq("abcde003ve1"))).thenReturn(false);
+        when(dbValidator.validate(anyObject(), eq("abcde004ve1"))).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(1))).thenReturn(1L);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(2))).thenReturn(2L);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(3))).thenReturn(3L);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), eq(4))).thenReturn(4L);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp = gen.generate();
+        assertEquals("vnf-name", resp.get("resource-name"));
+        assertEquals("123456", resp.get("external-key"));
+        assertEquals("abcde004ve1", resp.get("resource-value"));
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSequenceTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSequenceTest.java
new file mode 100644
index 00000000..9501522d
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/NameGeneratorSequenceTest.java
@@ -0,0 +1,106 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.ccsdk.apps.ms.neng.core.persistence.NamePersister;
+import org.onap.ccsdk.apps.ms.neng.core.policy.FilePolicyReader;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyFinder;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicyParameters;
+import org.onap.ccsdk.apps.ms.neng.core.seq.SequenceGenerator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.AaiNameValidator;
+import org.onap.ccsdk.apps.ms.neng.core.validator.DbNameValidator;
+
+@RunWith(MockitoJUnitRunner.class)
+public class NameGeneratorSequenceTest {
+    @Mock
+    private PolicyParameters policyParams = mock(PolicyParameters.class);
+    @Mock
+    private PolicyFinder policyFinder = mock(PolicyFinder.class);
+    @Mock
+    private SequenceGenerator sequenceGenerator = mock(SequenceGenerator.class);
+    @Mock
+    private DbNameValidator dbValidator = mock(DbNameValidator.class);
+    @Mock
+    private AaiNameValidator aaiValidator = mock(AaiNameValidator.class);
+    @Mock
+    private NamePersister namePresister = mock(NamePersister.class);
+    private Map<String, Map<String, String>> earlierNames = new HashMap<>();
+    private Map<String, Map<String, ?>> policyCache = new HashMap<>();
+
+    protected Map<String, String> makeOneRequest(String policy) {
+        Map<String, String> requestElement = new HashMap<>();
+        requestElement.put("external-key", "123456");
+        requestElement.put("policy-instance-name", policy);
+        requestElement.put("complex", "abcdeasdf");
+        requestElement.put("naming-type", "VNF");
+        requestElement.put("nf-naming-code", "ve1");
+        requestElement.put("resource-name", "vnf-name");
+        return requestElement;
+    }
+
+    /**
+     * Setup for policy params.
+     */
+    @Before
+    public void setupPolicyParams() throws Exception {
+        when(policyParams.mapFunction("substr")).thenReturn("substring");
+        when(policyParams.mapFunction("to_lower_case")).thenReturn("toLowerCase");
+        when(policyParams.mapFunction("to_upper_case")).thenReturn("toUpperCase");
+    }
+
+    @Test
+    public void generate() throws Exception {
+        String policyName = "SDNC_Policy.Config_MS_VNFNamingPolicy_no_seq";
+        Map<String, String> requestElement = makeOneRequest(policyName);
+        List<Map<String, String>> allElements = new ArrayList<>();
+        allElements.add(requestElement);
+
+        Map<String, Object> policy = new FilePolicyReader("vnf_policy_seq.json").getPolicy();
+        when(policyFinder.findPolicy(policyName)).thenReturn(policy);
+        when(aaiValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(dbValidator.validate(anyObject(), anyObject())).thenReturn(true);
+        when(sequenceGenerator.generate(anyObject(), anyObject(), anyObject(), anyObject(), anyInt())).thenReturn(1L);
+
+        NameGenerator gen = new NameGenerator(policyFinder, policyParams, sequenceGenerator, dbValidator, aaiValidator,
+                        namePresister, requestElement, allElements, earlierNames, policyCache);
+
+        Map<String, String> resp = gen.generate();
+        assertEquals("vnf-name", resp.get("resource-name"));
+        assertEquals("123456", resp.get("external-key"));
+        assertEquals("abcde001ve1", resp.get("resource-value"));
+    }
+}
+
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/SequenceFormatterTest.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/SequenceFormatterTest.java
new file mode 100644
index 00000000..df28ccce
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/gen/SequenceFormatterTest.java
@@ -0,0 +1,51 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.gen;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.onap.ccsdk.apps.ms.neng.core.policy.PolicySequence;
+
+public class SequenceFormatterTest {
+    @Test
+    public void formatSequence() throws Exception {
+        PolicySequence poly = new PolicySequence();
+        poly.setLength(3);;
+        assertEquals("001", SequenceFormatter.formatSequence(1, poly));
+        poly.setLength(2);;
+        assertEquals("01", SequenceFormatter.formatSequence(1, poly));
+        poly.setLength(4);;
+        assertEquals("0999", SequenceFormatter.formatSequence(999, poly));
+    }
+
+    @Test
+    public void formatSequenceAlpha() throws Exception {
+        PolicySequence poly = new PolicySequence();
+        poly.setLength(3);;
+        poly.setType(PolicySequence.Type.ALPHA);
+        assertEquals("001", SequenceFormatter.formatSequence(1, poly));
+        poly.setLength(2);;
+        assertEquals("01", SequenceFormatter.formatSequence(1, poly));
+        poly.setLength(4);;
+        assertEquals("000b", SequenceFormatter.formatSequence(11, poly));
+    }
+}
diff --git a/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/policy/FilePolicyReader.java b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/policy/FilePolicyReader.java
new file mode 100644
index 00000000..4056d0e1
--- /dev/null
+++ b/ms/neng/src/test/java/org/onap/ccsdk/apps/ms/neng/core/policy/FilePolicyReader.java
@@ -0,0 +1,50 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK.apps
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.ccsdk.apps.ms.neng.core.policy;
+
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Map;
+
+/**
+ * Reads policy from a file.
+ */
+public class FilePolicyReader extends PolicyReader {
+    private String file;
+
+    public FilePolicyReader(String file) {
+        this.file = file;
+    }
+
+    public Map<String, Object> findPolicy(String name) throws Exception {
+        return getPolicy();
+    }
+
+    public Map<String, Object> getPolicy() throws Exception {
+        return getPolicy(readFromFile(file));
+    }
+
+    protected String readFromFile(String name) throws Exception {
+        String path = "src/test/resources/" + name;
+        String value = new String(Files.readAllBytes(Paths.get(path)));
+        return value;
+    }
+}