1 files changed, 206 insertions, 0 deletions
diff --git a/controlloop/common/controller-frankfurt/src/test/java/org/onap/policy/controlloop/VcpeTest.java b/controlloop/common/controller-frankfurt/src/test/java/org/onap/policy/controlloop/VcpeTest.java
new file mode 100644
index 000000000..ff3f7427a
--- /dev/null
+++ b/controlloop/common/controller-frankfurt/src/test/java/org/onap/policy/controlloop/VcpeTest.java
@@ -0,0 +1,206 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019-2020 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.controlloop;
+
+import static org.awaitility.Awaitility.await;
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.onap.policy.appclcm.AppcLcmDmaapWrapper;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.models.tosca.authorative.concepts.ToscaPolicy;
+
+/**
+ * VCPE Use Case Tests.
+ */
+public class VcpeTest extends FrankfurtBase {
+
+    /**
+     * VCPE Tosca Policy File.
+     */
+    private static final String TOSCA_LEGACY_POLICY_VCPE = "src/test/resources/vcpe/tosca-legacy-vcpe.json";
+    private static final String TOSCA_COMPLIANT_POLICY_VCPE = "src/test/resources/vcpe/tosca-compliant-vcpe.json";
+
+    /*
+     * VCPE Use case Messages.
+     */
+    private static final String APPC_SUCCESS = "src/test/resources/vcpe/vcpe.appc.success.json";
+    private static final String ONSET_1 = "src/test/resources/vcpe/vcpe.onset.1.json";
+    private static final String ONSET_2 = "src/test/resources/vcpe/vcpe.onset.2.json";
+    private static final String ONSET_3 = "src/test/resources/vcpe/vcpe.onset.3.json";
+
+    /*
+     * Topic trackers used by the VCPE use case.
+     */
+    private TopicCallback<VirtualControlLoopNotification> policyClMgt;
+    private TopicCallback<AppcLcmDmaapWrapper> appcLcmRead;
+    private TopicCallback<AppcLcmDmaapWrapper> appcLcmWrite;
+
+    /*
+     * VCPE Tosca Policy.
+     */
+    private ToscaPolicy policy;
+
+    /**
+     * Prepare PDP-D Framework for testing.
+     */
+    @BeforeClass
+    public static void prepareResouces() throws InterruptedException, CoderException, IOException {
+        initConfigDir();
+        setupLogging();
+        preparePdpD();
+        setUpHttpClients();
+        setupSimulators();
+    }
+
+    /**
+     * Take down the resources used by the test framework.
+     */
+    @AfterClass
+    public static void takeDownResources() {
+        stopPdpD();
+        stopSimulators();
+    }
+
+    /**
+     * Observe Topics.
+     */
+    @Before
+    public void topicsRegistration() {
+        resetFacts();
+
+        policyClMgt = createTopicSinkCallback(POLICY_CL_MGT_TOPIC, VirtualControlLoopNotification.class);
+        appcLcmRead = createTopicSinkCallbackPlain(APPC_LCM_READ_TOPIC, AppcLcmDmaapWrapper.class, new StandardCoder());
+        appcLcmWrite = createTopicSourceCallback(APPC_LCM_WRITE_TOPIC, AppcLcmDmaapWrapper.class);
+    }
+
+    /**
+     * Unregister Topic Callbacks.
+     */
+    @After
+    public void topicsUnregistration() throws InterruptedException {
+        if (policyClMgt != null) {
+            policyClMgt.unregister();
+        }
+
+        if (appcLcmRead != null) {
+            appcLcmRead.unregister();
+        }
+
+        if (appcLcmWrite != null) {
+            appcLcmWrite.unregister();
+        }
+    }
+
+    /**
+     * Sunny Day with Legacy Tosca Policy.
+     */
+    @Test
+    public void sunnyDayLegacy() throws InterruptedException, CoderException, IOException {
+        assertEquals(0, controller.getDrools().factCount(CONTROLLER_NAME));
+        policy = setupPolicyFromFile(TOSCA_LEGACY_POLICY_VCPE);
+        assertEquals(2, controller.getDrools().factCount(CONTROLLER_NAME));
+
+        sunnyDay();
+    }
+
+    /**
+     * Sunny Day with Tosca Compliant Policy.
+     */
+    @Test
+    public void sunnyDayCompliant() throws InterruptedException, CoderException, IOException {
+        assertEquals(0, controller.getDrools().factCount(CONTROLLER_NAME));
+        policy = setupPolicyFromFile(TOSCA_COMPLIANT_POLICY_VCPE);
+        assertEquals(2, controller.getDrools().factCount(CONTROLLER_NAME));
+
+        sunnyDay();
+    }
+
+    /**
+     * An ONSET flood prevention test that injects a few ONSETs at once. It attempts to
+     * simulate the flooding behavior of the DCAE TCA microservice. TCA could blast tenths
+     * or hundreds of ONSETs within sub-second intervals.
+     */
+    @Test
+    public void onsetFloodPrevention() throws IOException, InterruptedException, CoderException {
+        assertEquals(0, controller.getDrools().factCount(CONTROLLER_NAME));
+        policy = setupPolicyFromFile(TOSCA_LEGACY_POLICY_VCPE);
+        assertEquals(2, controller.getDrools().factCount(CONTROLLER_NAME));
+
+        injectOnTopic(DCAE_TOPIC, Paths.get(ONSET_1));
+        injectOnTopic(DCAE_TOPIC, Paths.get(ONSET_2));
+        injectOnTopic(DCAE_TOPIC, Paths.get(ONSET_3));
+
+        assertEquals(1, controller.getDrools().facts(CONTROLLER_NAME, VirtualControlLoopEvent.class).stream().count());
+        assertEquals(1, controller.getDrools().facts(CONTROLLER_NAME, CanonicalOnset.class).stream().count());
+        assertEquals(controller.getDrools().facts(CONTROLLER_NAME, CanonicalOnset.class).get(0),
+                        controller.getDrools().facts(CONTROLLER_NAME, VirtualControlLoopEvent.class).get(0));
+
+        sunnyDay();
+    }
+
+    /**
+     * Sunny day scenario for the VCPE use case.
+     */
+    public void sunnyDay() throws IOException {
+
+        /* Inject an ONSET event over the DCAE topic */
+        injectOnTopic(DCAE_TOPIC, Paths.get(ONSET_1));
+
+        /* Wait to acquire a LOCK and a PDP-X PERMIT */
+        waitForLockAndPermit(policy, policyClMgt);
+
+        /* --- VCPE Operation Execution --- */
+
+        /*
+         * Ensure that an APPC RESTART request was sent in response to the matching ONSET
+         */
+        await().until(() -> !appcLcmRead.getMessages().isEmpty());
+        AppcLcmDmaapWrapper appcreq = appcLcmRead.getMessages().remove();
+        assertEquals("restart", appcreq.getRpcName());
+
+        /* Inject a 400 APPC Response Return over the APPC topic */
+        injectOnTopic(APPC_LCM_WRITE_TOPIC, Paths.get(APPC_SUCCESS),
+                        appcreq.getBody().getInput().getCommonHeader().getSubRequestId());
+
+        /* Ensure that RESTART response is received */
+        await().until(() -> !appcLcmWrite.getMessages().isEmpty());
+        assertEquals("restart", appcLcmWrite.getMessages().peek().getRpcName());
+        assertEquals(400, appcLcmWrite.getMessages().remove().getBody().getOutput().getStatus().getCode());
+
+        /* --- VCPE Operation Completed --- */
+
+        /* Ensure that the VCPE RESTART Operation is successfully completed */
+        await().until(() -> !policyClMgt.getMessages().isEmpty());
+        assertEquals(ControlLoopNotificationType.OPERATION_SUCCESS,
+                        policyClMgt.getMessages().remove().getNotification());
+
+        /* --- VCPE Transaction Completed --- */
+        waitForFinalSuccess(policy, policyClMgt);
+    }
+}