[ROCKETMQ-52] Add unit tests for RemoteBrokerOffsetStore

client/src/test/java/org/apache/rocketmq/client/consumer/store/RemoteBrokerOffsetStoreTest.java

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.rocketmq.client.consumer.store;
+
+import java.util.Collections;
+import java.util.HashSet;
+import org.apache.rocketmq.client.ClientConfig;
+import org.apache.rocketmq.client.exception.MQBrokerException;
+import org.apache.rocketmq.client.impl.FindBrokerResult;
+import org.apache.rocketmq.client.impl.MQClientAPIImpl;
+import org.apache.rocketmq.client.impl.factory.MQClientInstance;
+import org.apache.rocketmq.common.message.MessageQueue;
+import org.apache.rocketmq.common.protocol.header.QueryConsumerOffsetRequestHeader;
+import org.apache.rocketmq.common.protocol.header.UpdateConsumerOffsetRequestHeader;
+import org.apache.rocketmq.remoting.exception.RemotingException;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class RemoteBrokerOffsetStoreTest {
+
+    @Mock
+    private static MQClientInstance mQClientFactory;
+    @Mock
+    private static MQClientAPIImpl mqClientAPI;
+    private static String group = "FooBarGroup";
+    private static String topic = "FooBar";
+    private static String brokerName = "DefaultBrokerName";
+
+    @BeforeClass
+    public static void init() {
+        System.setProperty("rocketmq.client.localOffsetStoreDir", System.getProperty("java.io.tmpdir") + ".rocketmq_offsets");
+        mQClientFactory = mock(MQClientInstance.class);
+        String clientId = new ClientConfig().buildMQClientId() + "#TestNamespace" + System.currentTimeMillis();
+        when(mQClientFactory.getClientId()).thenReturn(clientId);
+        when(mQClientFactory.findBrokerAddressInAdmin(brokerName)).thenReturn(new FindBrokerResult("127.0.0.1", false));
+
+        mqClientAPI = mock(MQClientAPIImpl.class);
+        when(mQClientFactory.getMQClientAPIImpl()).thenReturn(mqClientAPI);
+    }
+
+    @Test
+    public void testUpdateOffset() throws Exception {
+        OffsetStore offsetStore = new RemoteBrokerOffsetStore(mQClientFactory, group);
+        MessageQueue messageQueue = new MessageQueue(topic, brokerName, 1);
+
+        offsetStore.updateOffset(messageQueue, 1024, false);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_MEMORY)).isEqualTo(1024);
+
+        offsetStore.updateOffset(messageQueue, 1023, false);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_MEMORY)).isEqualTo(1023);
+
+        offsetStore.updateOffset(messageQueue, 1022, true);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_MEMORY)).isEqualTo(1023);
+    }
+
+    @Test
+    public void testReadOffset_WithException() throws Exception {
+        OffsetStore offsetStore = new RemoteBrokerOffsetStore(mQClientFactory, group);
+        MessageQueue messageQueue = new MessageQueue(topic, brokerName, 2);
+
+        offsetStore.updateOffset(messageQueue, 1024, false);
+
+        doThrow(new MQBrokerException(-1, ""))
+            .when(mqClientAPI).queryConsumerOffset(anyString(), any(QueryConsumerOffsetRequestHeader.class), anyLong());
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_STORE)).isEqualTo(-1);
+
+        doThrow(new RemotingException("", null))
+            .when(mqClientAPI).queryConsumerOffset(anyString(), any(QueryConsumerOffsetRequestHeader.class), anyLong());
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_STORE)).isEqualTo(-2);
+    }
+
+    @Test
+    public void testReadOffset_Success() throws Exception {
+        OffsetStore offsetStore = new RemoteBrokerOffsetStore(mQClientFactory, group);
+        final MessageQueue messageQueue = new MessageQueue(topic, brokerName, 3);
+
+        doAnswer(new Answer() {
+            @Override public Object answer(InvocationOnMock mock) throws Throwable {
+                UpdateConsumerOffsetRequestHeader updateRequestHeader = mock.getArgument(1);
+                when(mqClientAPI.queryConsumerOffset(anyString(), any(QueryConsumerOffsetRequestHeader.class), anyLong())).thenReturn(updateRequestHeader.getCommitOffset());
+                return null;
+            }
+        }).when(mqClientAPI).updateConsumerOffsetOneway(any(String.class), any(UpdateConsumerOffsetRequestHeader.class), any(Long.class));
+
+        offsetStore.updateOffset(messageQueue, 1024, false);
+        offsetStore.persist(messageQueue);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_STORE)).isEqualTo(1024);
+
+        offsetStore.updateOffset(messageQueue, 1023, false);
+        offsetStore.persist(messageQueue);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_STORE)).isEqualTo(1023);
+
+        offsetStore.updateOffset(messageQueue, 1022, true);
+        offsetStore.persist(messageQueue);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_STORE)).isEqualTo(1023);
+
+        offsetStore.updateOffset(messageQueue, 1025, false);
+        offsetStore.persistAll(new HashSet<>(Collections.singletonList(messageQueue)));
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_STORE)).isEqualTo(1025);
+    }
+
+
+
+    @Test
+    public void testRemoveOffset() throws Exception {
+        OffsetStore offsetStore = new RemoteBrokerOffsetStore(mQClientFactory, group);
+        final MessageQueue messageQueue = new MessageQueue(topic, brokerName, 4);
+
+        offsetStore.updateOffset(messageQueue, 1024, false);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_MEMORY)).isEqualTo(1024);
+
+        offsetStore.removeOffset(messageQueue);
+        assertThat(offsetStore.readOffset(messageQueue, ReadOffsetType.READ_FROM_MEMORY)).isEqualTo(-1);
+    }
+}
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