Add participant for policy-framework

This commit adds a Participant for policy-framework, calls APIs
createPolicies and createPolicyTypes for creating policies and
policy-types in policy-framework when a controlLoopUpdate message is
recieved.

Issue-ID: POLICY-3038
Signed-off-by: Sirisha_Manchikanti <sirisha.manchikanti@est.tech>
Change-Id: I5ec795bbdd8684e4f6e8c65da1c340b35e7edf68

7 files changed, 1103 insertions, 0 deletions

diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/TestPolicyHandler.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/TestPolicyHandler.java
new file mode 100644
index 000000000..d96530219
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/handler/TestPolicyHandler.java
@@ -0,0 +1,95 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.handler;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.common.ControlLoopConstants;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopUpdate;
+import org.onap.policy.clamp.controlloop.participant.intermediary.comm.ControlLoopUpdateListener;
+import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.policy.main.startstop.Main;
+import org.onap.policy.clamp.controlloop.participant.policy.main.startstop.ParticipantPolicyActivator;
+import org.onap.policy.clamp.controlloop.participant.policy.main.utils.TestListenerUtils;
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+import org.onap.policy.common.utils.services.Registry;
+
+public class TestPolicyHandler {
+
+    private static ControlLoopUpdateListener clUpdateListener;
+    private static ParticipantControlLoopUpdate participantControlLoopUpdateMsg;
+    private static final String PARTICIPANTS_ENDPOINT = "participants";
+    private static final String ELEMENTS_ENDPOINT = "elements";
+    private static final CommInfrastructure INFRA = CommInfrastructure.NOOP;
+    private static final String TOPIC = "my-topic";
+    static CommonTestData commonTestData = new CommonTestData();
+
+    /**
+     * Setup before class, instantiate Main.
+     *
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        Registry.newRegistry();
+        final String[] configParameters = {"-c", "src/test/resources/parameters/TestParameters.json"};
+        Main main = new Main(configParameters);
+        assertTrue(main.isRunning());
+        TestListenerUtils.initParticipantHandler();
+
+        clUpdateListener = new ControlLoopUpdateListener(
+                PolicyHandler.getInstance()
+                .getPolicyProvider()
+                .getIntermediaryApi()
+                .getParticipantHandler());
+        participantControlLoopUpdateMsg =
+                TestListenerUtils.createControlLoopUpdateMsg("src/test/resources/utils/servicetemplates");
+        participantControlLoopUpdateMsg.getControlLoop().setOrderedState(ControlLoopOrderedState.PASSIVE);
+    }
+
+    @Test
+    public void testUpdatePolicies() throws Exception {
+        // Add policy_types to the toscaServiceTemplate
+        TestListenerUtils.addPolicyTypesToToscaServiceTemplate(
+                        participantControlLoopUpdateMsg.getControlLoopDefinition());
+
+        // Add policies to the toscaServiceTemplate
+        TestListenerUtils.addPoliciesToToscaServiceTemplate(participantControlLoopUpdateMsg.getControlLoopDefinition());
+
+        // Verify that the ToscaServicetemplate has policy_types
+        assertNotNull(participantControlLoopUpdateMsg.getControlLoopDefinition().getPolicyTypes());
+
+        // Verify that the ToscaServicetemplate has policies
+        assertNotNull(participantControlLoopUpdateMsg.getControlLoopDefinition()
+                .getToscaTopologyTemplate().getPolicies());
+
+        clUpdateListener.onTopicEvent(INFRA, TOPIC, null, participantControlLoopUpdateMsg);
+
+        // Verify the result of GET participants with what is stored
+        assertEquals("org.onap.PM_Policy",
+                TestListenerUtils.getParticipantHandler().getParticipantId().getName());
+    }
+}
diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/CommonTestData.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/CommonTestData.java
new file mode 100644
index 000000000..e3d7e3aa5
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/CommonTestData.java
@@ -0,0 +1,221 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.parameters;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+import javax.ws.rs.core.Response;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.common.endpoints.parameters.TopicParameters;
+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;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+/**
+ * Class to hold/create all parameters for test cases.
+ */
+public class CommonTestData {
+    public static final String PARTICIPANT_GROUP_NAME = "ControlLoopParticipantGroup";
+    public static final String DESCRIPTION = "Participant description";
+    public static final long TIME_INTERVAL = 2000;
+    public static final List<TopicParameters> TOPIC_PARAMS = Arrays.asList(getTopicParams());
+
+    public 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.convert(source, clazz);
+        } catch (final CoderException e) {
+            throw new RuntimeException("cannot create " + clazz.getName() + " from map", e);
+        }
+    }
+
+    /**
+     * Returns a property map for a ParticipantPolicyParameters map for test cases.
+     *
+     * @param name name of the parameters
+     *
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getParticipantPolicyParametersMap(final String name) {
+        final Map<String, Object> map = new TreeMap<>();
+
+        map.put("name", name);
+        map.put("intermediaryParameters", getIntermediaryParametersMap(false));
+        map.put("databaseProviderParameters", getDatabaseProviderParametersMap(false));
+        return map;
+    }
+
+    /**
+     * Returns a property map for a databaseProviderParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getDatabaseProviderParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("name", "PolicyProviderParameterGroup");
+            map.put("implementation", "org.onap.policy.models.provider.impl.DatabasePolicyModelsProviderImpl");
+            map.put("databaseDriver", "org.h2.Driver");
+            map.put("databaseUrl", "jdbc:h2:mem:testdb");
+            map.put("databaseUser", "policy");
+            map.put("databasePassword", "P01icY");
+            map.put("persistenceUnit", "ToscaConceptTest");
+        }
+
+        return map;
+    }
+
+    /**
+     * Returns a property map for a intermediaryParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getIntermediaryParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("name", "Participant parameters");
+            map.put("reportingTimeInterval", TIME_INTERVAL);
+            map.put("description", DESCRIPTION);
+            map.put("participantId", getParticipantId());
+            map.put("participantType", getParticipantId());
+            map.put("clampControlLoopTopics", getTopicParametersMap(false));
+        }
+
+        return map;
+    }
+
+    /**
+     * Returns a property map for a TopicParameters map for test cases.
+     *
+     * @param isEmpty boolean value to represent that object created should be empty or not
+     * @return a property map suitable for constructing an object
+     */
+    public Map<String, Object> getTopicParametersMap(final boolean isEmpty) {
+        final Map<String, Object> map = new TreeMap<>();
+        if (!isEmpty) {
+            map.put("topicSources", TOPIC_PARAMS);
+            map.put("topicSinks", TOPIC_PARAMS);
+        }
+        return map;
+    }
+
+    /**
+     * Returns topic parameters for test cases.
+     *
+     * @return topic parameters
+     */
+    public static TopicParameters getTopicParams() {
+        final TopicParameters topicParams = new TopicParameters();
+        topicParams.setTopic("POLICY-CLRUNTIME-PARTICIPANT");
+        topicParams.setTopicCommInfrastructure("dmaap");
+        topicParams.setServers(Arrays.asList("localhost"));
+        return topicParams;
+    }
+
+    /**
+     * Returns participantId for test cases.
+     *
+     * @return participant Id
+     */
+    public static ToscaConceptIdentifier getParticipantId() {
+        final ToscaConceptIdentifier participantId = new ToscaConceptIdentifier("org.onap.PM_Policy", "0.0.0");
+        return participantId;
+    }
+
+    /**
+     * Gets the standard participant parameters.
+     *
+     * @param port port to be inserted into the parameters
+     * @return the standard participant parameters
+     */
+    public ParticipantPolicyParameters getParticipantPolicyParameters(int port) {
+        try {
+            return coder.decode(getParticipantPolicyParametersAsString(port), ParticipantPolicyParameters.class);
+
+        } catch (CoderException e) {
+            throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
+                    "cannot read participant parameters", e);
+        }
+    }
+
+    /**
+     * Gets the standard participant parameters, as a String.
+     *
+     * @param port port to be inserted into the parameters
+     * @return the standard participant parameters
+     */
+    public static String getParticipantPolicyParametersAsString(int port) {
+
+        try {
+            File file = new File(getParamFile());
+            String json = new String(Files.readAllBytes(file.toPath()), StandardCharsets.UTF_8);
+
+            json = json.replace("${port}", String.valueOf(port));
+            json = json.replace("${dbName}", "jdbc:h2:mem:testdb");
+
+            return json;
+
+        } catch (IOException e) {
+            throw new ControlLoopRuntimeException(Response.Status.NOT_ACCEPTABLE,
+                    "cannot read participant parameters", e);
+
+        }
+    }
+
+    /**
+     * Gets the full path to the parameter file, which may vary depending on whether or
+     * not this is an end-to-end test.
+     *
+     * @return the parameter file name
+     */
+    private static String getParamFile() {
+        String paramFile = "src/test/resources/parameters/TestParametersStd.json";
+        return paramFile;
+    }
+
+    /**
+     * Nulls out a field within a JSON string.
+     * @param json JSON string
+     * @param field field to be nulled out
+     * @return a new JSON string with the field nulled out
+     */
+    public String nullifyField(String json, String field) {
+        return json.replace(field + "\"", field + "\":null, \"" + field + "Xxx\"");
+    }
+}
diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/TestParticipantPolicyParameterHandler.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/TestParticipantPolicyParameterHandler.java
new file mode 100644
index 000000000..dd62dbfc4
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/TestParticipantPolicyParameterHandler.java
@@ -0,0 +1,98 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.parameters;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.FileNotFoundException;
+import org.apache.commons.io.DirectoryWalker.CancelException;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopException;
+import org.onap.policy.clamp.controlloop.participant.policy.main.startstop.ParticipantPolicyCommandLineArguments;
+import org.onap.policy.common.utils.coder.CoderException;
+
+public class TestParticipantPolicyParameterHandler {
+
+    @Test
+    public void testParameterHandlerNoParameterFile() throws ControlLoopException {
+        final String[] emptyArgumentString = { "-c", "src/test/resources/parameters/NoParametersFile.json" };
+
+        final ParticipantPolicyCommandLineArguments emptyArguments = new ParticipantPolicyCommandLineArguments();
+        emptyArguments.parse(emptyArgumentString);
+
+        assertThatThrownBy(() -> new ParticipantPolicyParameterHandler().getParameters(emptyArguments))
+            .hasCauseInstanceOf(CoderException.class)
+            .hasRootCauseInstanceOf(FileNotFoundException.class);
+    }
+
+    @Test
+    public void testParameterHandlerInvalidParameters() throws ControlLoopException {
+        final String[] invalidArgumentString = { "-c", "src/test/resources/parameters/InvalidParameters.json" };
+
+        final ParticipantPolicyCommandLineArguments invalidArguments =
+                new ParticipantPolicyCommandLineArguments();
+        invalidArguments.parse(invalidArgumentString);
+
+        assertThatThrownBy(() -> new ParticipantPolicyParameterHandler().getParameters(invalidArguments))
+            .hasMessageStartingWith("error reading parameters from")
+            .hasCauseInstanceOf(CoderException.class);
+    }
+
+    @Test
+    public void testParticipantPolicyParameters() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-c", "src/test/resources/parameters/TestParameters.json" };
+
+        final ParticipantPolicyCommandLineArguments arguments = new ParticipantPolicyCommandLineArguments();
+        arguments.parse(participantConfigParameters);
+
+        final ParticipantPolicyParameters parGroup = new ParticipantPolicyParameterHandler()
+                .getParameters(arguments);
+        assertTrue(arguments.checkSetConfigurationFilePath());
+        assertEquals(CommonTestData.PARTICIPANT_GROUP_NAME, parGroup.getName());
+    }
+
+    @Test
+    public void testParticipantVersion() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-v" };
+        final ParticipantPolicyCommandLineArguments arguments = new ParticipantPolicyCommandLineArguments();
+        final String version = arguments.parse(participantConfigParameters);
+        assertThat(arguments.parse(participantConfigParameters)).startsWith(
+                        "ONAP Tosca defined control loop Participant");
+    }
+
+    @Test
+    public void testParticipantHelp() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-h" };
+        final ParticipantPolicyCommandLineArguments arguments = new ParticipantPolicyCommandLineArguments();
+        assertThat(arguments.parse(participantConfigParameters)).startsWith("usage:");
+    }
+
+    @Test
+    public void testParticipantInvalidOption() throws ControlLoopException {
+        final String[] participantConfigParameters = { "-d" };
+        final ParticipantPolicyCommandLineArguments arguments = new ParticipantPolicyCommandLineArguments();
+        assertThatThrownBy(() -> arguments.parse(participantConfigParameters))
+            .hasMessageStartingWith("invalid command line arguments specified");
+    }
+}
diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/TestParticipantPolicyParameters.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/TestParticipantPolicyParameters.java
new file mode 100644
index 000000000..49984442e
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/parameters/TestParticipantPolicyParameters.java
@@ -0,0 +1,112 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.parameters;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import java.util.Map;
+import org.junit.Test;
+import org.onap.policy.common.parameters.GroupValidationResult;
+
+public class TestParticipantPolicyParameters {
+    CommonTestData commonTestData = new CommonTestData();
+
+    @Test
+    public void testParticipantPolicyParameters_Named() {
+        final ParticipantPolicyParameters participantParameters = new ParticipantPolicyParameters("my-name");
+        assertEquals("my-name", participantParameters.getName());
+    }
+
+    @Test
+    public void testParticipantPolicyParameters() {
+        final ParticipantPolicyParameters participantParameters = commonTestData.toObject(
+                commonTestData.getParticipantPolicyParametersMap(CommonTestData.PARTICIPANT_GROUP_NAME),
+                ParticipantPolicyParameters.class);
+        assertThat(participantParameters.validate().isValid()).isTrue();
+    }
+
+    @Test
+    public void testParticipantPolicyParameters_NullName() {
+        final ParticipantPolicyParameters participantParameters = commonTestData
+                .toObject(commonTestData.getParticipantPolicyParametersMap(null),
+                        ParticipantPolicyParameters.class);
+        final GroupValidationResult validationResult = participantParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals(null, participantParameters.getName());
+        assertThat(validationResult.getResult()).contains("is null");
+    }
+
+    @Test
+    public void testParticipantPolicyParameters_EmptyName() {
+        final ParticipantPolicyParameters participantParameters = commonTestData
+                .toObject(commonTestData.getParticipantPolicyParametersMap(""),
+                                ParticipantPolicyParameters.class);
+        final GroupValidationResult validationResult = participantParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertEquals("", participantParameters.getName());
+        assertThat(validationResult.getResult()).contains(
+                "field \"name\" type \"java.lang.String\" value \"\" INVALID, " + "must be a non-blank string");
+    }
+
+    @Test
+    public void testParticipantPolicyParameters_SetName() {
+        final ParticipantPolicyParameters participantParameters = commonTestData.toObject(
+                commonTestData.getParticipantPolicyParametersMap(CommonTestData.PARTICIPANT_GROUP_NAME),
+                ParticipantPolicyParameters.class);
+        participantParameters.setName("ParticipantNewGroup");
+        assertThat(participantParameters.validate().isValid()).isTrue();
+        assertEquals("ParticipantNewGroup", participantParameters.getName());
+    }
+
+    @Test
+    public void testParticipantPolicyParameters_EmptyParticipantIntermediaryParameters() {
+        final Map<String, Object> map =
+                commonTestData.getParticipantPolicyParametersMap(CommonTestData.PARTICIPANT_GROUP_NAME);
+        map.replace("intermediaryParameters", commonTestData.getIntermediaryParametersMap(true));
+        final ParticipantPolicyParameters participantParameters =
+                commonTestData.toObject(map, ParticipantPolicyParameters.class);
+        final GroupValidationResult validationResult = participantParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertThat(validationResult.getResult()).contains(
+                        "\"org.onap.policy.clamp.controlloop.participant.policy.main.parameters."
+                        + "ParticipantPolicyParameters\""
+                        + " INVALID, parameter group has status INVALID");
+    }
+
+    @Test
+    public void testParticipantPolicyParametersp_EmptyTopicParameters() {
+        final Map<String, Object> map =
+                commonTestData.getParticipantPolicyParametersMap(CommonTestData.PARTICIPANT_GROUP_NAME);
+        final Map<String, Object> intermediaryParametersMap = commonTestData.getIntermediaryParametersMap(false);
+        intermediaryParametersMap.put("clampControlLoopTopics", commonTestData.getTopicParametersMap(true));
+        map.replace("intermediaryParameters", intermediaryParametersMap);
+
+        final ParticipantPolicyParameters participantParameters =
+                commonTestData.toObject(map, ParticipantPolicyParameters.class);
+        final GroupValidationResult validationResult = participantParameters.validate();
+        assertFalse(validationResult.isValid());
+        assertThat(validationResult.getResult())
+                .contains("\"org.onap.policy.common.endpoints.parameters.TopicParameterGroup\" INVALID, "
+                        + "parameter group has status INVALID");
+    }
+}
diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/startstop/TestMain.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/startstop/TestMain.java
new file mode 100644
index 000000000..f77b678c0
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/startstop/TestMain.java
@@ -0,0 +1,143 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.startstop;
+
+import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.common.ControlLoopConstants;
+import org.onap.policy.clamp.controlloop.common.exception.ControlLoopRuntimeException;
+import org.onap.policy.common.utils.resources.MessageConstants;
+import org.onap.policy.common.utils.services.Registry;
+
+public class TestMain {
+
+    /**
+     * Set up.
+     */
+    @BeforeClass
+    public static void setUp() {
+        Registry.newRegistry();
+    }
+
+    /**
+     * Shuts "main" down.
+     *
+     * @throws Exception if an error occurs
+     */
+    @AfterClass
+    public static void tearDown() throws Exception {
+        // shut down activator
+        final ParticipantPolicyActivator activator =
+            Registry.getOrDefault(ControlLoopConstants.REG_CLRUNTIME_ACTIVATOR,
+                            ParticipantPolicyActivator.class, null);
+        if (activator != null && activator.isAlive()) {
+            activator.shutdown();
+        }
+    }
+
+    @Test
+    public void testMain_Help() {
+        final String[] configParameters = {"-h"};
+        Main main = new Main(configParameters);
+        assertFalse(main.isRunning());
+    }
+
+    @Test
+    public void testMain_Version() {
+        final String[] configParameters = {"-v"};
+        Main main = new Main(configParameters);
+        assertFalse(main.isRunning());
+    }
+
+    @Test
+    public void testMain_Valid() {
+        final String[] configParameters = {"-c", "src/test/resources/parameters/TestParameters.json"};
+        Main main = new Main(configParameters);
+        assertTrue(main.isRunning());
+
+        assertThatCode(() -> main.shutdown()).doesNotThrowAnyException();
+
+        assertFalse(main.isRunning());
+    }
+
+    @Test
+    public void testMain_NoParameter() {
+        assertThatConfigParameterThrownException(new String[] {});
+    }
+
+    @Test
+    public void testMain_FilePathNotDefined() {
+        assertThatConfigParameterThrownException(new String[] {"-c"});
+    }
+
+    @Test
+    public void testMain_TooManyCommand() {
+        assertThatConfigParameterThrownException(new String[] {"-h", "d"});
+    }
+
+    @Test
+    public void testMain_WrongParameter() {
+        assertThatConfigParameterThrownException(new String[] {"-d"});
+    }
+
+    private void assertThatConfigParameterThrownException(final String[] configParameters) {
+        assertThatThrownBy(() -> Main.main(configParameters)).isInstanceOf(ControlLoopRuntimeException.class)
+                .hasMessage(String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_CLAMP));
+    }
+
+    @Test
+    public void testParticipant_NoFileWithThisName() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/NoFileWithThisName.json");
+    }
+
+    @Test
+    public void testParticipant_NotValidFile() {
+        assertThatConfigFileThrownException("src/test/resources/parameters");
+    }
+
+    @Test
+    public void testParticipant_NoParameters() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/NoParameters.json");
+    }
+
+    @Test
+    public void testParticipant_InvalidParameters() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/InvalidParameters.json");
+    }
+
+    @Test
+    public void testParticipant_WrongJsonFormat() {
+        assertThatConfigFileThrownException("src/test/resources/parameters/Unreadable.json");
+    }
+
+    private void assertThatConfigFileThrownException(final String configFilePath) {
+        final String[] configParameters = new String[] {"-c", configFilePath};
+        assertThatThrownBy(() -> new Main(configParameters)).isInstanceOf(ControlLoopRuntimeException.class)
+                .hasMessage(String.format(MessageConstants.START_FAILURE_MSG, MessageConstants.POLICY_CLAMP));
+    }
+}
diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/startstop/TestParticipantPolicyActivator.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/startstop/TestParticipantPolicyActivator.java
new file mode 100644
index 000000000..afb0f6cb4
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/startstop/TestParticipantPolicyActivator.java
@@ -0,0 +1,88 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.startstop;
+
+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.assertTrue;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.ParticipantPolicyParameterHandler;
+import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.ParticipantPolicyParameters;
+import org.onap.policy.common.utils.services.Registry;
+
+public class TestParticipantPolicyActivator {
+
+    private static ParticipantPolicyActivator activator;
+
+    /**
+     * Initializes an activator.
+     *
+     * @throws Exception if an error occurs
+     */
+    @BeforeClass
+    public static void setUp() throws Exception {
+        Registry.newRegistry();
+        final String[] participantConfigParameters = { "-c", "src/test/resources/parameters/TestParameters.json"};
+        final ParticipantPolicyCommandLineArguments arguments =
+                new ParticipantPolicyCommandLineArguments(participantConfigParameters);
+        final ParticipantPolicyParameters parGroup =
+                new ParticipantPolicyParameterHandler().getParameters(arguments);
+        activator = new ParticipantPolicyActivator(parGroup);
+    }
+
+    /**
+     * Method for cleanup after each test.
+     *
+     * @throws Exception if an error occurs
+     */
+    @AfterClass
+    public static void teardown() throws Exception {
+        // shut down activator
+        if (activator != null && activator.isAlive()) {
+            activator.shutdown();
+        }
+    }
+
+    @Test
+    public void testParticipantActivator() {
+        activator.start();
+        assertTrue(activator.isAlive());
+        assertTrue(activator.getParameters().isValid());
+        assertEquals(CommonTestData.PARTICIPANT_GROUP_NAME, activator.getParameters().getName());
+
+        // repeat - should throw an exception
+        assertThatIllegalStateException().isThrownBy(() -> activator.start());
+        assertTrue(activator.isAlive());
+        assertTrue(activator.getParameters().isValid());
+
+        activator.shutdown();
+        assertFalse(activator.isAlive());
+
+        // repeat - should throw an exception
+        assertThatIllegalStateException().isThrownBy(() -> activator.shutdown());
+        assertFalse(activator.isAlive());
+    }
+}
diff --git a/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java
new file mode 100644
index 000000000..9d5b874b3
--- /dev/null
+++ b/tosca-controlloop/participant/participant-impl/participant-impl-policy/src/test/java/org/onap/policy/clamp/controlloop/participant/policy/main/utils/TestListenerUtils.java
@@ -0,0 +1,346 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.clamp.controlloop.participant.policy.main.utils;
+
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import lombok.Getter;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoop;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantState;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopStateChange;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantControlLoopUpdate;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantHealthCheck;
+import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantStateChange;
+import org.onap.policy.clamp.controlloop.participant.intermediary.handler.ParticipantHandler;
+import org.onap.policy.clamp.controlloop.participant.policy.main.handler.PolicyProvider;
+import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.CommonTestData;
+import org.onap.policy.clamp.controlloop.participant.policy.main.parameters.ParticipantPolicyParameters;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.common.utils.coder.YamlJsonTranslator;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TestListenerUtils {
+
+    private static final YamlJsonTranslator yamlTranslator = new YamlJsonTranslator();
+    private static final Coder CODER = new StandardCoder();
+    static CommonTestData commonTestData = new CommonTestData();
+    private static final Logger LOGGER = LoggerFactory.getLogger(TestListenerUtils.class);
+
+    @Getter
+    private static ParticipantHandler participantHandler;
+
+    private TestListenerUtils() {}
+
+    /**
+     * Initializes participantHandler.
+     */
+    public static void initParticipantHandler() {
+
+        final ParticipantPolicyParameters participantParameters = commonTestData.toObject(
+                commonTestData.getParticipantPolicyParametersMap(CommonTestData.PARTICIPANT_GROUP_NAME),
+                ParticipantPolicyParameters.class);
+
+        PolicyProvider policyProvider =
+                new PolicyProvider(participantParameters.getIntermediaryParameters());
+
+        participantHandler = policyProvider.getIntermediaryApi().getParticipantHandler();
+    }
+
+    /**
+     * Method to create a controlLoop from a yaml file.
+     *
+     * @return ControlLoop controlloop
+     */
+    public static ControlLoop createControlLoop() {
+        ControlLoop controlLoop = new ControlLoop();
+        List<ControlLoopElement> elements = new ArrayList<>();
+        ToscaServiceTemplate toscaServiceTemplate = testControlLoopRead("src/test/resources/utils/servicetemplates");
+        Map<String, ToscaNodeTemplate> nodeTemplatesMap =
+                toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates();
+        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : nodeTemplatesMap.entrySet()) {
+            ControlLoopElement clElement = new ControlLoopElement();
+            clElement.setId(UUID.randomUUID());
+
+            ToscaConceptIdentifier clElementParticipantId = new ToscaConceptIdentifier();
+            clElementParticipantId.setName(toscaInputEntry.getKey());
+            clElementParticipantId.setVersion(toscaInputEntry.getValue().getVersion());
+            clElement.setParticipantId(clElementParticipantId);
+
+            clElement.setDefinition(clElementParticipantId);
+            clElement.setState(ControlLoopState.UNINITIALISED);
+            clElement.setDescription(toscaInputEntry.getValue().getDescription());
+            clElement.setOrderedState(ControlLoopOrderedState.UNINITIALISED);
+            elements.add(clElement);
+        }
+        controlLoop.setElements(elements);
+        controlLoop.setName("PMSHInstance0");
+        controlLoop.setVersion("1.0.0");
+
+        ToscaConceptIdentifier definition = new ToscaConceptIdentifier();
+        definition.setName("PMSHInstance0");
+        definition.setVersion("1.0.0");
+        controlLoop.setDefinition(definition);
+
+        return controlLoop;
+    }
+
+    /**
+     * Method to create ParticipantStateChange message from the arguments passed.
+     *
+     * @param participantState participant State
+     *
+     * @return ParticipantStateChange message
+     */
+    public static ParticipantStateChange createParticipantStateChangeMsg(final ParticipantState participantState) {
+        final ParticipantStateChange participantStateChangeMsg = new ParticipantStateChange();
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier();
+        participantId.setName("org.onap.PM_Policy");
+        participantId.setVersion("0.0.0");
+
+        participantStateChangeMsg.setParticipantId(participantId);
+        participantStateChangeMsg.setTimestamp(Instant.now());
+        participantStateChangeMsg.setState(participantState);
+
+        return participantStateChangeMsg;
+    }
+
+    /**
+     * Method to create ControlLoopStateChange message from the arguments passed.
+     *
+     * @param controlLoopOrderedState controlLoopOrderedState
+     *
+     * @return ParticipantControlLoopStateChange message
+     */
+    public static ParticipantControlLoopStateChange createControlLoopStateChangeMsg(
+            final ControlLoopOrderedState controlLoopOrderedState) {
+        final ParticipantControlLoopStateChange participantClStateChangeMsg = new ParticipantControlLoopStateChange();
+
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier();
+        controlLoopId.setName("PMSHInstance0");
+        controlLoopId.setVersion("1.0.0");
+
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier();
+        participantId.setName("org.onap.PM_Policy");
+        participantId.setVersion("0.0.0");
+
+        participantClStateChangeMsg.setControlLoopId(controlLoopId);
+        participantClStateChangeMsg.setParticipantId(participantId);
+        participantClStateChangeMsg.setTimestamp(Instant.now());
+        participantClStateChangeMsg.setOrderedState(controlLoopOrderedState);
+
+        return participantClStateChangeMsg;
+    }
+
+    /**
+     * Method to create ControlLoopUpdateMsg.
+     *
+     * @return ParticipantControlLoopUpdate message
+     */
+    public static ParticipantControlLoopUpdate createControlLoopUpdateMsg(final String inputDirPath) {
+        final ParticipantControlLoopUpdate clUpdateMsg = new ParticipantControlLoopUpdate();
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier();
+        controlLoopId.setName("PMSHInstance0");
+        controlLoopId.setVersion("1.0.0");
+
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier();
+        participantId.setName("org.onap.PM_Policy");
+        participantId.setVersion("0.0.0");
+
+        clUpdateMsg.setControlLoopId(controlLoopId);
+        clUpdateMsg.setParticipantId(participantId);
+
+        ControlLoop controlLoop = new ControlLoop();
+        List<ControlLoopElement> elements = new ArrayList<>();
+        ToscaServiceTemplate toscaServiceTemplate = testControlLoopRead(inputDirPath);
+        Map<String, ToscaNodeTemplate> nodeTemplatesMap =
+                toscaServiceTemplate.getToscaTopologyTemplate().getNodeTemplates();
+        for (Map.Entry<String, ToscaNodeTemplate> toscaInputEntry : nodeTemplatesMap.entrySet()) {
+            ControlLoopElement clElement = new ControlLoopElement();
+            clElement.setId(UUID.randomUUID());
+
+            ToscaConceptIdentifier clElementParticipantId = new ToscaConceptIdentifier();
+            clElementParticipantId.setName(toscaInputEntry.getKey());
+            clElementParticipantId.setVersion(toscaInputEntry.getValue().getVersion());
+            clElement.setParticipantId(clElementParticipantId);
+
+            clElement.setDefinition(clElementParticipantId);
+            clElement.setState(ControlLoopState.UNINITIALISED);
+            clElement.setDescription(toscaInputEntry.getValue().getDescription());
+            clElement.setOrderedState(ControlLoopOrderedState.UNINITIALISED);
+            elements.add(clElement);
+        }
+        controlLoop.setElements(elements);
+        controlLoop.setName("PMSHInstance0");
+        controlLoop.setVersion("1.0.0");
+        controlLoop.setDefinition(controlLoopId);
+        clUpdateMsg.setControlLoop(controlLoop);
+        clUpdateMsg.setControlLoopDefinition(toscaServiceTemplate);
+
+        return clUpdateMsg;
+    }
+
+    /**
+     * Method to create ParticipantHealthCheck message.
+     *
+     * @return ParticipantHealthCheck message
+     */
+    public static ParticipantHealthCheck createParticipantHealthCheckMsg() {
+        ToscaConceptIdentifier participantId = new ToscaConceptIdentifier();
+        participantId.setName("org.onap.PM_Policy");
+        participantId.setVersion("0.0.0");
+
+        ToscaConceptIdentifier controlLoopId = new ToscaConceptIdentifier();
+        controlLoopId.setName("PMSHInstance0");
+        controlLoopId.setVersion("1.0.0");
+
+        final ParticipantHealthCheck participantHealthCheckMsg = new ParticipantHealthCheck();
+        participantHealthCheckMsg.setParticipantId(participantId);
+        participantHealthCheckMsg.setControlLoopId(controlLoopId);
+        participantHealthCheckMsg.setTimestamp(Instant.now());
+        participantHealthCheckMsg.setState(ParticipantState.PASSIVE);
+
+        return participantHealthCheckMsg;
+    }
+
+    /**
+     * Method to create ParticipantControlLoopUpdate using the arguments passed.
+     *
+     * @param jsonFilePath the path of the controlloop content
+     *
+     * @return ParticipantControlLoopUpdate message
+     * @throws CoderException exception while reading the file to object
+     */
+    public static ParticipantControlLoopUpdate createParticipantClUpdateMsgFromJson(String jsonFilePath)
+            throws CoderException {
+        ParticipantControlLoopUpdate participantControlLoopUpdateMsg =
+                CODER.decode(new File(jsonFilePath), ParticipantControlLoopUpdate.class);
+        return participantControlLoopUpdateMsg;
+    }
+
+    private static ToscaServiceTemplate testControlLoopRead(final String inputDirPath) {
+        Set<String> controlLoopDirectoryContents =
+                ResourceUtils.getDirectoryContents(inputDirPath);
+
+        boolean atLeastOneControlLoopTested = false;
+        ToscaServiceTemplate toscaServiceTemplate = null;
+
+        for (String controlLoopFilePath : controlLoopDirectoryContents) {
+            if (!controlLoopFilePath.endsWith(".yaml")) {
+                continue;
+            }
+            atLeastOneControlLoopTested = true;
+            toscaServiceTemplate = testControlLoopYamlSerialization(controlLoopFilePath);
+        }
+
+        assertTrue(atLeastOneControlLoopTested);
+        return toscaServiceTemplate;
+    }
+
+    /**
+     * Method to add polcies to the toscaServiceTemplate.
+     *
+     * @param toscaServiceTemplate to add policies
+     */
+    public static void addPolicyTypesToToscaServiceTemplate(
+            ToscaServiceTemplate toscaServiceTemplate) {
+        Set<String> policyTypeDirectoryContents = ResourceUtils.getDirectoryContents("policytypes");
+
+        for (String policyTypeFilePath : policyTypeDirectoryContents) {
+            String policyTypeString = ResourceUtils.getResourceAsString(policyTypeFilePath);
+
+            ToscaServiceTemplate foundPolicyTypeSt =
+                yamlTranslator.fromYaml(policyTypeString, ToscaServiceTemplate.class);
+
+            toscaServiceTemplate.setDerivedFrom(foundPolicyTypeSt.getDerivedFrom());
+            toscaServiceTemplate.setDescription(foundPolicyTypeSt.getDescription());
+            toscaServiceTemplate.setMetadata(foundPolicyTypeSt.getMetadata());
+            toscaServiceTemplate.setName(foundPolicyTypeSt.getName());
+            toscaServiceTemplate.setToscaDefinitionsVersion(foundPolicyTypeSt.getToscaDefinitionsVersion());
+            toscaServiceTemplate.setVersion(foundPolicyTypeSt.getVersion());
+
+            if (foundPolicyTypeSt.getDataTypes() != null) {
+                if (toscaServiceTemplate.getDataTypes() == null) {
+                    toscaServiceTemplate.setDataTypes(foundPolicyTypeSt.getDataTypes());
+                } else {
+                    toscaServiceTemplate.getDataTypes().putAll(foundPolicyTypeSt.getDataTypes());
+                }
+            }
+
+            if (toscaServiceTemplate.getPolicyTypes() == null) {
+                toscaServiceTemplate.setPolicyTypes(foundPolicyTypeSt.getPolicyTypes());
+            } else {
+                toscaServiceTemplate.getPolicyTypes().putAll(foundPolicyTypeSt.getPolicyTypes());
+            }
+        }
+    }
+
+    /**
+     * Method to add polcies to the toscaServiceTemplate.
+     *
+     * @param toscaServiceTemplate to add policies
+     */
+    public static void addPoliciesToToscaServiceTemplate(ToscaServiceTemplate toscaServiceTemplate) {
+        Set<String> policiesDirectoryContents = ResourceUtils.getDirectoryContents("policies");
+
+        for (String policiesFilePath : policiesDirectoryContents) {
+            String policiesString = ResourceUtils.getResourceAsString(policiesFilePath);
+
+            ToscaServiceTemplate foundPoliciesSt =
+                yamlTranslator.fromYaml(policiesString, ToscaServiceTemplate.class);
+            toscaServiceTemplate.getToscaTopologyTemplate().setPolicies(
+                    foundPoliciesSt.getToscaTopologyTemplate().getPolicies());
+        }
+    }
+
+    private static ToscaServiceTemplate testControlLoopYamlSerialization(String controlLoopFilePath) {
+        try {
+            String controlLoopString = ResourceUtils.getResourceAsString(controlLoopFilePath);
+            if (controlLoopString == null) {
+                throw new FileNotFoundException(controlLoopFilePath);
+            }
+
+            ToscaServiceTemplate serviceTemplate = yamlTranslator.fromYaml(
+                        controlLoopString, ToscaServiceTemplate.class);
+            return serviceTemplate;
+        } catch (FileNotFoundException e) {
+            LOGGER.error("cannot find YAML file", controlLoopFilePath);
+            throw new IllegalArgumentException(e);
+        }
+    }
+}