Java tutorial
/* * 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.bookkeeper.client.api; import static com.google.common.base.Charsets.UTF_8; import static org.junit.Assert.assertArrayEquals; import static org.mockito.ArgumentMatchers.any; import static org.mockito.ArgumentMatchers.anyInt; import static org.mockito.ArgumentMatchers.anyLong; import static org.mockito.ArgumentMatchers.eq; import static org.mockito.Mockito.doAnswer; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.times; import static org.mockito.Mockito.verify; import static org.powermock.api.mockito.PowerMockito.when; import io.netty.buffer.ByteBuf; import io.netty.buffer.ByteBufUtil; import java.nio.ByteBuffer; import java.util.concurrent.LinkedBlockingQueue; import org.apache.bookkeeper.common.concurrent.FutureUtils; import org.junit.Rule; import org.junit.Test; import org.junit.rules.TestName; /** * Unit test for {@link WriteAdvHandle}. */ public class WriteAdvHandleTest { @Rule public final TestName runtime = new TestName(); private final long entryId; private final WriteAdvHandle handle = mock(WriteAdvHandle.class); private final LinkedBlockingQueue<ByteBuf> entryQueue; public WriteAdvHandleTest() { this.entryId = System.currentTimeMillis(); this.entryQueue = new LinkedBlockingQueue<>(); doAnswer(invocationOnMock -> { ByteBuf buf = invocationOnMock.getArgument(1); entryQueue.add(buf); return FutureUtils.value(-1L); }).when(handle).writeAsync(anyLong(), any(ByteBuf.class)); when(handle.writeAsync(anyLong(), any(byte[].class))).thenCallRealMethod(); when(handle.writeAsync(anyLong(), any(byte[].class), anyInt(), anyInt())).thenCallRealMethod(); when(handle.writeAsync(anyLong(), any(ByteBuffer.class))).thenCallRealMethod(); } @Test public void testAppendBytes() throws Exception { byte[] testData = runtime.getMethodName().getBytes(UTF_8); handle.writeAsync(entryId, testData); ByteBuf buffer = entryQueue.take(); byte[] bufferData = ByteBufUtil.getBytes(buffer); assertArrayEquals(testData, bufferData); verify(handle, times(1)).writeAsync(eq(entryId), any(ByteBuf.class)); } @Test public void testAppendBytes2() throws Exception { byte[] testData = runtime.getMethodName().getBytes(UTF_8); handle.writeAsync(entryId, testData, 1, testData.length / 2); byte[] expectedData = new byte[testData.length / 2]; System.arraycopy(testData, 1, expectedData, 0, testData.length / 2); ByteBuf buffer = entryQueue.take(); byte[] bufferData = ByteBufUtil.getBytes(buffer); assertArrayEquals(expectedData, bufferData); verify(handle, times(1)).writeAsync(eq(entryId), any(ByteBuf.class)); } @Test public void testAppendByteBuffer() throws Exception { byte[] testData = runtime.getMethodName().getBytes(UTF_8); handle.writeAsync(entryId, ByteBuffer.wrap(testData, 1, testData.length / 2)); byte[] expectedData = new byte[testData.length / 2]; System.arraycopy(testData, 1, expectedData, 0, testData.length / 2); ByteBuf buffer = entryQueue.take(); byte[] bufferData = ByteBufUtil.getBytes(buffer); assertArrayEquals(expectedData, bufferData); verify(handle, times(1)).writeAsync(eq(entryId), any(ByteBuf.class)); } }