Add models for register,deregister and update

This commit adds models for ParticipantRegister, ParticipantDeregister
and ParticipantUpdate messages. Handling of these messages will be
taken care in a later commit.

Issue-ID: POLICY-3414
Signed-off-by: Sirisha_Manchikanti <sirisha.manchikanti@est.tech>
Change-Id: I622b98b03df09eecaac160ba564c8a21b449c642

13 files changed, 426 insertions, 5 deletions

diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaClElementStatisticsChild.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaClElementStatisticsChild.java
index b90ccba5b..94b0b13c7 100644
--- a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaClElementStatisticsChild.java
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaClElementStatisticsChild.java
@@ -23,6 +23,6 @@ package org.onap.policy.clamp.controlloop.models.controlloop.persistence.concept
 /**
  * Test class for {@link JpaClElementStatistics} comparisons.
  */
-public class DummyJpaClElementStatisticsChild extends JpaClElementStatistics {
+class DummyJpaClElementStatisticsChild extends JpaClElementStatistics {
     private static final long serialVersionUID = -5101743610779424064L;
 }
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopChild.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopChild.java
index c4eb364d3..10150cf59 100644
--- a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopChild.java
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopChild.java
@@ -23,6 +23,6 @@ package org.onap.policy.clamp.controlloop.models.controlloop.persistence.concept
 /**
  * Test class for {@link JpaControlLoop} comparisons.
  */
-public class DummyJpaControlLoopChild extends JpaControlLoop {
+class DummyJpaControlLoopChild extends JpaControlLoop {
     private static final long serialVersionUID = -5101743610779424064L;
 }
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopElementChild.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopElementChild.java
index 2082ff41c..4bacb9255 100644
--- a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopElementChild.java
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaControlLoopElementChild.java
@@ -23,6 +23,6 @@ package org.onap.policy.clamp.controlloop.models.controlloop.persistence.concept
 /**
  * Test class for {@link JpaControlLoopElement} comparisons.
  */
-public class DummyJpaControlLoopElementChild extends JpaControlLoopElement {
+class DummyJpaControlLoopElementChild extends JpaControlLoopElement {
     private static final long serialVersionUID = -5101743610779424064L;
 }
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantChild.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantChild.java
index e6bc92efb..68dcc319b 100644
--- a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantChild.java
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantChild.java
@@ -23,6 +23,6 @@ package org.onap.policy.clamp.controlloop.models.controlloop.persistence.concept
 /**
  * Test class for {@link JpaParticipant} comparisons.
  */
-public class DummyJpaParticipantChild extends JpaParticipant {
+class DummyJpaParticipantChild extends JpaParticipant {
     private static final long serialVersionUID = -5101743610779424064L;
 }
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantStatisticsChild.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantStatisticsChild.java
index 74dd40034..2c1f04ea1 100644
--- a/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantStatisticsChild.java
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/controlloop/persistence/concepts/DummyJpaParticipantStatisticsChild.java
@@ -23,6 +23,6 @@ package org.onap.policy.clamp.controlloop.models.controlloop.persistence.concept
 /**
  * Test class for {@link JpaParticipantStatistics} comparisons.
  */
-public class DummyJpaParticipantStatisticsChild extends JpaParticipantStatistics {
+class DummyJpaParticipantStatisticsChild extends JpaParticipantStatistics {
     private static final long serialVersionUID = -5101743610779424064L;
 }
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantAckMessageTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantAckMessageTest.java
new file mode 100644
index 000000000..82ba5d186
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantAckMessageTest.java
@@ -0,0 +1,59 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+
+class ParticipantAckMessageTest {
+    private ParticipantAckMessage message;
+
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantAckMessage((ParticipantAckMessage) null))
+                .isInstanceOf(NullPointerException.class);
+
+        // verify with null values
+        message = new ParticipantAckMessage(ParticipantMessageType.PARTICIPANT_STATE_CHANGE);
+        ParticipantAckMessage newmsg = new ParticipantAckMessage(message);
+        newmsg.setResponseTo(message.getResponseTo());
+        assertEquals(message.toString(), newmsg.toString());
+
+        // verify with all values
+        message = makeMessage();
+        newmsg = new ParticipantAckMessage(message);
+        newmsg.setResponseTo(message.getResponseTo());
+        assertEquals(message.toString(), newmsg.toString());
+    }
+
+    private ParticipantAckMessage makeMessage() {
+        ParticipantAckMessage msg = new ParticipantAckMessage(ParticipantMessageType.PARTICIPANT_DEREGISTER_ACK);
+
+        msg.setMessage("Successfull Ack");
+        msg.setResult(true);
+        msg.setResponseTo(UUID.randomUUID());
+
+        return msg;
+    }
+}
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantDeregisterAckTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantDeregisterAckTest.java
new file mode 100644
index 000000000..cfb891e2a
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantDeregisterAckTest.java
@@ -0,0 +1,55 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageUtils.removeVariableFields;
+
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+class ParticipantDeregisterAckTest {
+
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantDeregisterAck(null)).isInstanceOf(NullPointerException.class);
+
+        final ParticipantDeregisterAck orig = new ParticipantDeregisterAck();
+
+        // verify with null values
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantDeregisterAck(orig).toString()));
+
+        // verify with all values
+        ToscaConceptIdentifier id = new ToscaConceptIdentifier();
+        id.setName("id");
+        id.setVersion("1.2.3");
+        orig.setResponseTo(UUID.randomUUID());
+        orig.setMessageType(ParticipantMessageType.PARTICIPANT_DEREGISTER_ACK);
+        orig.setResult(true);
+        orig.setMessage("Successfully processed message");
+
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantDeregisterAck(orig).toString()));
+    }
+}
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantDeregisterTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantDeregisterTest.java
new file mode 100644
index 000000000..2daefb6cc
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantDeregisterTest.java
@@ -0,0 +1,57 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageUtils.removeVariableFields;
+
+import java.time.Instant;
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+class ParticipantDeregisterTest {
+
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantDeregister(null)).isInstanceOf(NullPointerException.class);
+
+        final ParticipantDeregister orig = new ParticipantDeregister();
+
+        // verify with null values
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantDeregister(orig).toString()));
+
+        // verify with all values
+        ToscaConceptIdentifier id = new ToscaConceptIdentifier();
+        id.setName("id");
+        id.setVersion("1.2.3");
+        orig.setControlLoopId(id);
+        orig.setParticipantId(id);
+        orig.setParticipantType(id);
+        orig.setMessageId(UUID.randomUUID());
+        orig.setTimestamp(Instant.ofEpochMilli(3000));
+
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantDeregister(orig).toString()));
+    }
+}
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantPojosTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantPojosTest.java
index af8eaa8eb..1a56a3979 100644
--- a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantPojosTest.java
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantPojosTest.java
@@ -44,6 +44,8 @@ class ParticipantPojosTest {
 
         pojoClasses.remove(PojoClassFactory.getPojoClass(ParticipantMessage.class));
         pojoClasses.remove(PojoClassFactory.getPojoClass(ParticipantMessageTest.class));
+        pojoClasses.remove(PojoClassFactory.getPojoClass(ParticipantAckMessage.class));
+        pojoClasses.remove(PojoClassFactory.getPojoClass(ParticipantAckMessageTest.class));
 
         // @formatter:off
         final Validator validator = ValidatorBuilder
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantRegisterAckTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantRegisterAckTest.java
new file mode 100644
index 000000000..f0c721186
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantRegisterAckTest.java
@@ -0,0 +1,55 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageUtils.removeVariableFields;
+
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+class ParticipantRegisterAckTest {
+
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantRegisterAck(null)).isInstanceOf(NullPointerException.class);
+
+        final ParticipantRegisterAck orig = new ParticipantRegisterAck();
+
+        // verify with null values
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantRegisterAck(orig).toString()));
+
+        // verify with all values
+        ToscaConceptIdentifier id = new ToscaConceptIdentifier();
+        id.setName("id");
+        id.setVersion("1.2.3");
+        orig.setResponseTo(UUID.randomUUID());
+        orig.setMessageType(ParticipantMessageType.PARTICIPANT_REGISTER_ACK);
+        orig.setResult(true);
+        orig.setMessage("Successfully processed message");
+
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantRegisterAck(orig).toString()));
+    }
+}
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantRegisterTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantRegisterTest.java
new file mode 100644
index 000000000..d7ce5bf38
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantRegisterTest.java
@@ -0,0 +1,57 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageUtils.removeVariableFields;
+
+import java.time.Instant;
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+class ParticipantRegisterTest {
+
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantRegister(null)).isInstanceOf(NullPointerException.class);
+
+        final ParticipantRegister orig = new ParticipantRegister();
+
+        // verify with null values
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantRegister(orig).toString()));
+
+        // verify with all values
+        ToscaConceptIdentifier id = new ToscaConceptIdentifier();
+        id.setName("id");
+        id.setVersion("1.2.3");
+        orig.setControlLoopId(id);
+        orig.setParticipantId(id);
+        orig.setParticipantType(id);
+        orig.setMessageId(UUID.randomUUID());
+        orig.setTimestamp(Instant.ofEpochMilli(3000));
+
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantRegister(orig).toString()));
+    }
+}
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantUpdateAckTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantUpdateAckTest.java
new file mode 100644
index 000000000..868147637
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantUpdateAckTest.java
@@ -0,0 +1,55 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageUtils.removeVariableFields;
+
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+class ParticipantUpdateAckTest {
+
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantUpdateAck(null)).isInstanceOf(NullPointerException.class);
+
+        final ParticipantUpdateAck orig = new ParticipantUpdateAck();
+
+        // verify with null values
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantUpdateAck(orig).toString()));
+
+        // verify with all values
+        ToscaConceptIdentifier id = new ToscaConceptIdentifier();
+        id.setName("id");
+        id.setVersion("1.2.3");
+        orig.setResponseTo(UUID.randomUUID());
+        orig.setMessageType(ParticipantMessageType.PARTICIPANT_UPDATE_ACK);
+        orig.setResult(true);
+        orig.setMessage("Successfully processed message");
+
+        assertEquals(removeVariableFields(orig.toString()),
+                removeVariableFields(new ParticipantUpdateAck(orig).toString()));
+    }
+}
diff --git a/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantUpdateTest.java b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantUpdateTest.java
new file mode 100644
index 000000000..4f8b42b3a
--- /dev/null
+++ b/models/src/test/java/org/onap/policy/clamp/controlloop/models/messages/dmaap/participant/ParticipantUpdateTest.java
@@ -0,0 +1,81 @@
+/*-
+ * ============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.models.messages.dmaap.participant;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotSame;
+import static org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageUtils.removeVariableFields;
+
+import java.time.Instant;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.UUID;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElementDefinition;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
+
+/**
+ * Test the copy constructor.
+ */
+class ParticipantUpdateTest {
+    @Test
+    void testCopyConstructor() {
+        assertThatThrownBy(() -> new ParticipantUpdate(null)).isInstanceOf(NullPointerException.class);
+
+        ParticipantUpdate orig = new ParticipantUpdate();
+        // verify with all values
+        ToscaConceptIdentifier id = new ToscaConceptIdentifier();
+        id.setName("id");
+        id.setVersion("1.2.3");
+        orig.setControlLoopId(id);
+        orig.setParticipantId(id);
+        orig.setParticipantType(id);
+        orig.setMessageId(UUID.randomUUID());
+        orig.setTimestamp(Instant.ofEpochMilli(3000));
+
+        ToscaServiceTemplate toscaServiceTemplate = new ToscaServiceTemplate();
+        toscaServiceTemplate.setName("serviceTemplate");
+        toscaServiceTemplate.setDerivedFrom("parentServiceTemplate");
+        toscaServiceTemplate.setDescription("Description of serviceTemplate");
+        toscaServiceTemplate.setVersion("1.2.3");
+
+        ControlLoopElementDefinition clDefinition = new ControlLoopElementDefinition();
+        clDefinition.setId(UUID.randomUUID());
+        clDefinition.setControlLoopElementToscaServiceTemplate(toscaServiceTemplate);
+        Map<String, String> commonPropertiesMap = new LinkedHashMap<>();
+        commonPropertiesMap.put("Prop1", "PropValue");
+        clDefinition.setCommonPropertiesMap(commonPropertiesMap);
+
+        Map<UUID, ControlLoopElementDefinition> controlLoopElementDefinitionMap = new LinkedHashMap<>();
+        controlLoopElementDefinitionMap.put(UUID.randomUUID(), clDefinition);
+
+        Map<ToscaConceptIdentifier, Map<UUID, ControlLoopElementDefinition>>
+            participantDefinitionUpdateMap = new LinkedHashMap<>();
+        participantDefinitionUpdateMap.put(id, controlLoopElementDefinitionMap);
+        orig.setParticipantDefinitionUpdateMap(participantDefinitionUpdateMap);
+
+        ParticipantUpdate other = new ParticipantUpdate(orig);
+
+        assertEquals(removeVariableFields(orig.toString()), removeVariableFields(other.toString()));
+    }
+}