1 files changed, 123 insertions, 0 deletions
diff --git a/participant/participant-impl/participant-impl-acelement/src/test/java/org/onap/policy/clamp/acm/element/handler/MessageHandlerTest.java b/participant/participant-impl/participant-impl-acelement/src/test/java/org/onap/policy/clamp/acm/element/handler/MessageHandlerTest.java
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index 000000000..84c6305e2
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+++ b/participant/participant-impl/participant-impl-acelement/src/test/java/org/onap/policy/clamp/acm/element/handler/MessageHandlerTest.java
@@ -0,0 +1,123 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2022 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.acm.element.handler;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.util.List;
+import org.junit.jupiter.api.Test;
+import org.onap.policy.clamp.acm.element.main.parameters.AcElement;
+import org.onap.policy.clamp.acm.element.service.ElementService;
+import org.onap.policy.clamp.models.acm.messages.dmaap.element.ElementStatus;
+import org.onap.policy.clamp.models.acm.messages.rest.element.ElementConfig;
+import org.onap.policy.clamp.models.acm.messages.rest.element.ElementType;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
+
+class MessageHandlerTest {
+
+    private static final String NAME = "name";
+    private static final String VERSION = "1.0.0";
+
+    @Test
+    void testAppliesTo() {
+        var messageHandler = createMessageHandler(List.of());
+
+        assertThat(messageHandler.appliesTo(new ToscaConceptIdentifier(NAME, "0.0.2"))).isFalse();
+        assertThat(messageHandler.appliesTo(new ToscaConceptIdentifier("different", VERSION))).isFalse();
+        assertThat(messageHandler.appliesTo(new ToscaConceptIdentifier(NAME, VERSION))).isTrue();
+    }
+
+    @Test
+    void testStarter() {
+        var starter = createMockElementService(ElementType.STARTER);
+        var bridge = createMockElementService(ElementType.BRIDGE);
+        var sink = createMockElementService(ElementType.SINK);
+        var messageHandler = createMessageHandler(List.of(starter, bridge, sink));
+
+        var elementConfig = new ElementConfig();
+        elementConfig.setElementType(ElementType.STARTER);
+
+        messageHandler.active(elementConfig);
+        verify(starter).active(elementConfig);
+        assertThat(messageHandler.getActiveService()).isEqualTo(starter);
+        messageHandler.deactivateElement();
+    }
+
+    @Test
+    void testBridge() {
+        var starter = createMockElementService(ElementType.STARTER);
+        var bridge = createMockElementService(ElementType.BRIDGE);
+        var sink = createMockElementService(ElementType.SINK);
+        var messageHandler = createMessageHandler(List.of(starter, bridge, sink));
+
+        var elementConfig = new ElementConfig();
+        elementConfig.setElementType(ElementType.BRIDGE);
+        messageHandler.active(elementConfig);
+        verify(bridge).active(elementConfig);
+        assertThat(messageHandler.getActiveService()).isEqualTo(bridge);
+
+        messageHandler.update(elementConfig);
+        verify(bridge).update(elementConfig);
+
+        var message = new ElementStatus();
+        messageHandler.handleMessage(message);
+        verify(bridge).handleMessage(message);
+        assertThat(messageHandler.getMessages()).hasSize(1);
+        assertThat(messageHandler.getMessages().get(0)).isEqualTo(message);
+        messageHandler.deactivateElement();
+    }
+
+    @Test
+    void testSink() {
+        var starter = createMockElementService(ElementType.STARTER);
+        var bridge = createMockElementService(ElementType.BRIDGE);
+        var sink = createMockElementService(ElementType.SINK);
+        var messageHandler = createMessageHandler(List.of(starter, bridge, sink));
+
+        var elementConfig = new ElementConfig();
+        elementConfig.setElementType(ElementType.SINK);
+        messageHandler.active(elementConfig);
+        verify(sink).active(elementConfig);
+        assertThat(messageHandler.getActiveService()).isEqualTo(sink);
+
+        var message = new ElementStatus();
+        messageHandler.handleMessage(message);
+        verify(sink).handleMessage(message);
+        assertThat(messageHandler.getMessages()).hasSize(1);
+        assertThat(messageHandler.getMessages().get(0)).isEqualTo(message);
+        messageHandler.deactivateElement();
+    }
+
+    private MessageHandler createMessageHandler(List<ElementService> elementServices) {
+        var acElement = new AcElement();
+        acElement.setElementId(new ToscaConceptIdentifier(NAME, VERSION));
+        return new MessageHandler(acElement, elementServices);
+    }
+
+    private ElementService createMockElementService(ElementType elementType) {
+        var starter = mock(ElementService.class);
+        when(starter.getType()).thenReturn(elementType);
+        return starter;
+    }
+}