Adding services-onappf module to apex-pdp

1) Adding services-onappf module to apex-pdp.
2) Following the code base from policy/pap to build the module.
3) Currently PAP is using property & configuration file for bootstrap.
Continuing the same in this module as well.
4) Adding relevant test cases.

Change-Id: Id9740ea60ae3ecbd88e5d6d3586ee0dde1054cca
Issue-ID: POLICY-1452
Signed-off-by: a.sreekumar <ajith.sreekumar@est.tech>

6 files changed, 597 insertions, 0 deletions

diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java
new file mode 100644
index 000000000..3b7df8321
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterActivator.java
@@ -0,0 +1,114 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.policy.apex.starter;
+
+import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+
+import java.io.FileInputStream;
+import java.util.Properties;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.policy.apex.starter.exception.ApexStarterException;
+import org.onap.policy.apex.starter.parameters.ApexStarterParameterGroup;
+import org.onap.policy.apex.starter.parameters.ApexStarterParameterHandler;
+import org.onap.policy.apex.starter.parameters.CommonTestData;
+
+
+
+/**
+ * Class to perform unit test of {@link ApexStarterActivator}}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestApexStarterActivator {
+
+    private ApexStarterActivator activator;
+
+    /**
+     * Initializes an activator.
+     *
+     * @throws Exception if an error occurs
+     */
+    @Before
+    public void setUp() throws Exception {
+        final String[] apexStarterConfigParameters = { "-c", "src/test/resources/ApexStarterConfigParameters.json",
+            "-p", "src/test/resources/topic.properties" };
+        final ApexStarterCommandLineArguments arguments =
+                new ApexStarterCommandLineArguments(apexStarterConfigParameters);
+        final ApexStarterParameterGroup parGroup = new ApexStarterParameterHandler().getParameters(arguments);
+
+        final Properties props = new Properties();
+        final String propFile = arguments.getFullPropertyFilePath();
+        try (FileInputStream stream = new FileInputStream(propFile)) {
+            props.load(stream);
+        }
+
+        activator = new ApexStarterActivator(parGroup, props);
+    }
+
+    /**
+     * Method for cleanup after each test.
+     *
+     * @throws Exception if an error occurs
+     */
+    @After
+    public void teardown() throws Exception {
+        if (activator != null && activator.isAlive()) {
+            activator.terminate();
+        }
+    }
+
+    @Test
+    public void testApexStarterActivator() throws ApexStarterException {
+        assertFalse(activator.isAlive());
+        activator.initialize();
+        assertTrue(activator.isAlive());
+        assertTrue(activator.getParameterGroup().isValid());
+        assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, activator.getParameterGroup().getName());
+
+        // repeat - should throw an exception
+        assertThatIllegalStateException().isThrownBy(() -> activator.initialize());
+        assertTrue(activator.isAlive());
+        assertTrue(activator.getParameterGroup().isValid());
+    }
+
+    @Test
+    public void testGetCurrent_testSetCurrent() {
+        assertSame(activator, ApexStarterActivator.getCurrent());
+    }
+
+    @Test
+    public void testTerminate() throws Exception {
+        activator.initialize();
+        activator.terminate();
+        assertFalse(activator.isAlive());
+
+        // repeat - should throw an exception
+        assertThatIllegalStateException().isThrownBy(() -> activator.terminate());
+        assertFalse(activator.isAlive());
+    }
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java
new file mode 100644
index 000000000..5d52d85c5
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/TestApexStarterMain.java
@@ -0,0 +1,91 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.policy.apex.starter;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.After;
+import org.junit.Test;
+import org.onap.policy.apex.starter.exception.ApexStarterException;
+import org.onap.policy.apex.starter.parameters.CommonTestData;
+
+/**
+ * Class to perform unit test of {@link ApexStarterMain}}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestApexStarterMain {
+    private ApexStarterMain apexStarter;
+
+    /**
+     * Shuts "main" down.
+     *
+     * @throws Exception if an error occurs
+     */
+    @After
+    public void tearDown() throws Exception {
+        // shut down activator
+        final ApexStarterActivator activator = ApexStarterActivator.getCurrent();
+        if (activator != null && activator.isAlive()) {
+            activator.terminate();
+        }
+    }
+
+    @Test
+    public void testApexStarter() throws ApexStarterException {
+        final String[] apexStarterConfigParameters = { "-c", "src/test/resources/ApexStarterConfigParameters.json",
+            "-p", "src/test/resources/topic.properties" };
+        apexStarter = new ApexStarterMain(apexStarterConfigParameters);
+        assertTrue(apexStarter.getParameters().isValid());
+        assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, apexStarter.getParameters().getName());
+
+        apexStarter.shutdown();
+    }
+
+    @Test
+    public void testApexStarter_NoArguments() {
+        final String[] apexStarterConfigParameters = {};
+        apexStarter = new ApexStarterMain(apexStarterConfigParameters);
+        assertTrue(apexStarter.getParameters() == null);
+    }
+
+    @Test
+    public void testApexStarter_InvalidArguments() {
+        final String[] apexStarterConfigParameters = { "src/test/resources/ApexStarterConfigParameters.json" };
+        apexStarter = new ApexStarterMain(apexStarterConfigParameters);
+        assertTrue(apexStarter.getParameters() == null);
+    }
+
+    @Test
+    public void testApexStarter_Help() {
+        final String[] apexStarterConfigParameters = { "-h" };
+        ApexStarterMain.main(apexStarterConfigParameters);
+    }
+
+    @Test
+    public void testApexStarter_InvalidParameters() {
+        final String[] apexStarterConfigParameters =
+                { "-c", "src/test/resources/ApexStarterConfigParameters_InvalidName.json" };
+        apexStarter = new ApexStarterMain(apexStarterConfigParameters);
+        assertTrue(apexStarter.getParameters() == null);
+    }
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/exception/TestExceptions.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/exception/TestExceptions.java
new file mode 100644
index 000000000..63ebeb608
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/exception/TestExceptions.java
@@ -0,0 +1,38 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.policy.apex.starter.exception;
+
+import org.junit.Test;
+import org.onap.policy.common.utils.test.ExceptionsTester;
+
+/**
+ * Class to perform unit test of {@link ApexStarterException ApexStarterRunTimeException}}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestExceptions {
+
+    @Test
+    public void test() {
+        new ExceptionsTester().test(ApexStarterException.class);
+        new ExceptionsTester().test(ApexStarterRunTimeException.class);
+    }
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java
new file mode 100644
index 000000000..08a33b94c
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/CommonTestData.java
@@ -0,0 +1,92 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.policy.apex.starter.parameters;
+
+import java.util.Map;
+import java.util.TreeMap;
+
+import org.onap.policy.common.parameters.ParameterGroup;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+
+/**
+ * Class to hold/create all parameters for test cases.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class CommonTestData {
+
+    public static final String APEX_STARTER_GROUP_NAME = "ApexStarterParameterGroup";
+    public static final int APEX_STARTER_TIME_INTERVAL = 5;
+
+    private static final Coder coder = new StandardCoder();
+
+    /**
+     * Converts the contents of a map to a parameter class.
+     *
+     * @param source property map
+     * @param clazz class of object to be created from the map
+     * @return a new object represented by the map
+     */
+    public <T extends ParameterGroup> T toObject(final Map<String, Object> source, final Class<T> clazz) {
+        try {
+            return coder.decode(coder.encode(source), clazz);
+
+        } catch (final CoderException e) {
+            throw new RuntimeException("cannot create " + clazz.getName() + " from map", e);
+        }
+    }
+
+    /**
+     * Returns a property map for a ApexStarterParameterGroup map for test cases.
+     *
+     * @param name name of the parameters
+     *
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getApexStarterParameterGroupMap(final String name) {
+        final Map<String, Object> map = new TreeMap<>();
+
+        map.put("name", name);
+        map.put("timeInterval", getTimeInterval(false));
+
+        return map;
+    }
+
+
+
+    /**
+     * Determines whether to return null or a valid time interval
+     *
+     * @param isNullField flag to determine what to return
+     * @return time interval based on the flag
+     */
+    public Object getTimeInterval(final boolean isNullField) {
+        if (isNullField) {
+            return null;
+        } else {
+            return APEX_STARTER_TIME_INTERVAL;
+        }
+
+    }
+
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java
new file mode 100644
index 000000000..d22455214
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterGroup.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.policy.apex.starter.parameters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Map;
+
+import org.junit.Test;
+import org.onap.policy.common.parameters.GroupValidationResult;
+
+/**
+ * Class to perform unit test of {@link ApexStarterParameterGroup}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestApexStarterParameterGroup {
+    CommonTestData commonTestData = new CommonTestData();
+
+    @Test
+    public void testApexStarterParameterGroup_Named() {
+        final ApexStarterParameterGroup apexStarterParameters = new ApexStarterParameterGroup("my-name");
+        assertEquals("my-name", apexStarterParameters.getName());
+    }
+
+    @Test
+    public void testApexStarterParameterGroup() {
+        final ApexStarterParameterGroup apexStarterParameters = commonTestData.toObject(
+                commonTestData.getApexStarterParameterGroupMap(CommonTestData.APEX_STARTER_GROUP_NAME),
+                ApexStarterParameterGroup.class);
+        final GroupValidationResult validationResult = apexStarterParameters.validate();
+        assertTrue(validationResult.isValid());
+        assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, apexStarterParameters.getName());
+        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, apexStarterParameters.getTimeInterval());
+    }
+
+    @Test
+    public void testApexStarterParameterGroup_NullName() {
+        final ApexStarterParameterGroup apexStarterParameters = commonTestData
+                .toObject(commonTestData.getApexStarterParameterGroupMap(null), ApexStarterParameterGroup.class);
+        final GroupValidationResult validationResult = apexStarterParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals(null, apexStarterParameters.getName());
+        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, apexStarterParameters.getTimeInterval());
+        assertTrue(validationResult.getResult().contains("is null"));
+    }
+
+    @Test
+    public void testApexStarterParameterGroup_EmptyName() {
+        final ApexStarterParameterGroup apexStarterParameters = commonTestData
+                .toObject(commonTestData.getApexStarterParameterGroupMap(""), ApexStarterParameterGroup.class);
+        final GroupValidationResult validationResult = apexStarterParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals("", apexStarterParameters.getName());
+        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, apexStarterParameters.getTimeInterval());
+        assertTrue(validationResult.getResult().contains(
+                "field \"name\" type \"java.lang.String\" value \"\" INVALID, " + "must be a non-blank string"));
+    }
+
+    @Test
+    public void testApexStarterParameterGroup_SetName() {
+        final ApexStarterParameterGroup apexStarterParameters = commonTestData.toObject(
+                commonTestData.getApexStarterParameterGroupMap(CommonTestData.APEX_STARTER_GROUP_NAME),
+                ApexStarterParameterGroup.class);
+        apexStarterParameters.setName("ApexStarterNewGroup");
+        final GroupValidationResult validationResult = apexStarterParameters.validate();
+        assertTrue(validationResult.isValid());
+        assertEquals("ApexStarterNewGroup", apexStarterParameters.getName());
+    }
+
+    @Test
+    public void testApexStarterParameterGroup_EmptyTimeInterval() {
+        final Map<String, Object> map =
+                commonTestData.getApexStarterParameterGroupMap(CommonTestData.APEX_STARTER_GROUP_NAME);
+        map.put("timeInterval", commonTestData.getTimeInterval(true));
+        final ApexStarterParameterGroup apexStarterParameters =
+                commonTestData.toObject(map, ApexStarterParameterGroup.class);
+        final GroupValidationResult validationResult = apexStarterParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertTrue(validationResult.getResult()
+                .contains("field \"timeInterval\" type \"int\" value \"0\" INVALID, must be >= 1")
+                && validationResult.getResult().contains("parameter group has status INVALID"));
+    }
+}
diff --git a/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java
new file mode 100644
index 000000000..3889b2aa5
--- /dev/null
+++ b/services/services-onappf/src/test/java/org/onap/policy/apex/starter/parameters/TestApexStarterParameterHandler.java
@@ -0,0 +1,158 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.policy.apex.starter.parameters;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.FileNotFoundException;
+
+import org.junit.Test;
+import org.onap.policy.apex.starter.ApexStarterCommandLineArguments;
+import org.onap.policy.apex.starter.exception.ApexStarterException;
+import org.onap.policy.common.utils.coder.CoderException;
+
+/**
+ * Class to perform unit test of {@link ApexStarterParameterHandler}.
+ *
+ * @author Ajith Sreekumar (ajith.sreekumar@est.tech)
+ */
+public class TestApexStarterParameterHandler {
+
+    @Test
+    public void testParameterHandlerNoParameterFile() throws ApexStarterException {
+        final String[] emptyArgumentString = { "-c", "src/test/resources/NoParametersFile.json" };
+
+        final ApexStarterCommandLineArguments emptyArguments = new ApexStarterCommandLineArguments();
+        emptyArguments.parse(emptyArgumentString);
+
+        try {
+            new ApexStarterParameterHandler().getParameters(emptyArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertTrue(e.getCause() instanceof CoderException);
+            assertTrue(e.getCause().getCause() instanceof FileNotFoundException);
+        }
+    }
+
+    @Test
+    public void testParameterHandlerEmptyParameters() throws ApexStarterException {
+        final String[] noArgumentString = { "-c", "src/test/resources/NoParameters.json" };
+
+        final ApexStarterCommandLineArguments noArguments = new ApexStarterCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        try {
+            new ApexStarterParameterHandler().getParameters(noArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertTrue(e.getMessage().contains("no parameters found"));
+        }
+    }
+
+    @Test
+    public void testParameterHandlerInvalidParameters() throws ApexStarterException {
+        final String[] invalidArgumentString = { "-c", "src/test/resources/InvalidParameters.json" };
+
+        final ApexStarterCommandLineArguments invalidArguments = new ApexStarterCommandLineArguments();
+        invalidArguments.parse(invalidArgumentString);
+
+        try {
+            new ApexStarterParameterHandler().getParameters(invalidArguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertTrue(e.getMessage().startsWith("error reading parameters from"));
+            assertTrue(e.getCause() instanceof CoderException);
+        }
+    }
+
+    @Test
+    public void testParameterHandlerNoParameters() throws ApexStarterException {
+        final String[] noArgumentString = { "-c", "src/test/resources/EmptyConfigParameters.json" };
+
+        final ApexStarterCommandLineArguments noArguments = new ApexStarterCommandLineArguments();
+        noArguments.parse(noArgumentString);
+
+        try {
+            new ApexStarterParameterHandler().getParameters(noArguments);
+        } catch (final Exception e) {
+            assertTrue(e.getMessage().contains("is null"));
+        }
+    }
+
+    @Test
+    public void testApexStarterParameterGroup() throws ApexStarterException {
+        final String[] apexStarterConfigParameters = { "-c", "src/test/resources/ApexStarterConfigParameters.json" };
+
+        final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
+        arguments.parse(apexStarterConfigParameters);
+
+        final ApexStarterParameterGroup parGroup = new ApexStarterParameterHandler().getParameters(arguments);
+        assertTrue(arguments.checkSetConfigurationFilePath());
+        assertEquals(CommonTestData.APEX_STARTER_GROUP_NAME, parGroup.getName());
+        assertEquals(CommonTestData.APEX_STARTER_TIME_INTERVAL, parGroup.getTimeInterval());
+    }
+
+    @Test
+    public void testApexStarterParameterGroup_InvalidName() throws ApexStarterException {
+        final String[] apexStarterConfigParameters =
+                { "-c", "src/test/resources/ApexStarterConfigParameters_InvalidName.json" };
+
+        final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
+        arguments.parse(apexStarterConfigParameters);
+
+        try {
+            new ApexStarterParameterHandler().getParameters(arguments);
+            fail("test should throw an exception here");
+        } catch (final Exception e) {
+            assertTrue(e.getMessage().contains(
+                    "field \"name\" type \"java.lang.String\" value \" \" INVALID, must be a non-blank string"));
+        }
+    }
+
+    @Test
+    public void testApexStarterVersion() throws ApexStarterException {
+        final String[] apexStarterConfigParameters = { "-v" };
+        final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
+        final String version = arguments.parse(apexStarterConfigParameters);
+        assertTrue(version.startsWith("ONAP Policy Framework Apex Starter Service"));
+    }
+
+    @Test
+    public void testApexStarterHelp() throws ApexStarterException {
+        final String[] apexStarterConfigParameters = { "-h" };
+        final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
+        final String help = arguments.parse(apexStarterConfigParameters);
+        assertTrue(help.startsWith("usage:"));
+    }
+
+    @Test
+    public void testApexStarterInvalidOption() throws ApexStarterException {
+        final String[] apexStarterConfigParameters = { "-d" };
+        final ApexStarterCommandLineArguments arguments = new ApexStarterCommandLineArguments();
+        try {
+            arguments.parse(apexStarterConfigParameters);
+        } catch (final Exception exp) {
+            assertTrue(exp.getMessage().startsWith("invalid command line arguments specified"));
+        }
+    }
+}