[ONOS-4287] Persistent and distributed alarm store

Change-Id: I2fb0f5d84e563a53f036be012a8190d7df5869dc
diff --git a/apps/faultmanagement/fmmgr/src/test/java/org/onosproject/faultmanagement/impl/DistributedAlarmStoreTest.java b/apps/faultmanagement/fmmgr/src/test/java/org/onosproject/faultmanagement/impl/DistributedAlarmStoreTest.java
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+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.faultmanagement.impl;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.incubator.net.faultmanagement.alarm.Alarm;
+import org.onosproject.incubator.net.faultmanagement.alarm.DefaultAlarm;
+import org.onosproject.net.DeviceId;
+import org.onosproject.store.service.TestStorageService;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Distributed Alarm store test suite.
+ */
+public class DistributedAlarmStoreTest {
+    private DistributedAlarmStore alarmStore;
+    private static final DeviceId DEVICE_ID = DeviceId.deviceId("foo:bar");
+    private static final DefaultAlarm ALARM_A = new DefaultAlarm.Builder(
+            DEVICE_ID, "aaa", Alarm.SeverityLevel.CRITICAL, 0).build();
+
+    /**
+     * Sets up the device key store and the storage service test harness.
+     */
+    @Before
+    public void setUp() {
+        alarmStore = new DistributedAlarmStore();
+        alarmStore.storageService = new TestStorageService();
+        alarmStore.setDelegate(event -> {
+        });
+        alarmStore.activate();
+    }
+
+    /**
+     * Tears down the device key store.
+     */
+    @After
+    public void tearDown() {
+        alarmStore.deactivate();
+    }
+
+    /**
+     * Tests adding, removing and getting.
+     */
+    @Test
+    public void basics() {
+        alarmStore.setAlarm(ALARM_A);
+        assertTrue("There should be one alarm in the set.",
+                   alarmStore.getAlarms().contains(ALARM_A));
+        assertTrue("The same alarm should be returned.",
+                   alarmStore.getAlarms(DEVICE_ID).contains(ALARM_A));
+        assertTrue("The alarm should be the same",
+                   alarmStore.getAlarm(ALARM_A.id()).equals(ALARM_A));
+        alarmStore.removeAlarm(ALARM_A.id());
+        assertFalse("There should be no alarm in the set.",
+                    alarmStore.getAlarms().contains(ALARM_A));
+    }
+
+}