| /* |
| * Copyright 2014 The gRPC Authors |
| * |
| * 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 io.grpc.internal; |
| |
| import static com.google.common.base.Charsets.UTF_8; |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.verify; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** |
| * Tests for {@link CompositeReadableBuffer}. |
| */ |
| @RunWith(JUnit4.class) |
| public class CompositeReadableBufferTest { |
| private static final String EXPECTED_VALUE = "hello world"; |
| |
| private CompositeReadableBuffer composite; |
| |
| @Before |
| public void setup() { |
| composite = new CompositeReadableBuffer(); |
| splitAndAdd(EXPECTED_VALUE); |
| } |
| |
| @After |
| public void teardown() { |
| composite.close(); |
| } |
| |
| @Test |
| public void singleBufferShouldSucceed() { |
| composite = new CompositeReadableBuffer(); |
| composite.addBuffer(ReadableBuffers.wrap(EXPECTED_VALUE.getBytes(UTF_8))); |
| assertEquals(EXPECTED_VALUE.length(), composite.readableBytes()); |
| assertEquals(EXPECTED_VALUE, ReadableBuffers.readAsStringUtf8(composite)); |
| assertEquals(0, composite.readableBytes()); |
| } |
| |
| @Test |
| public void readUnsignedByteShouldSucceed() { |
| for (int ix = 0; ix < EXPECTED_VALUE.length(); ++ix) { |
| int c = composite.readUnsignedByte(); |
| assertEquals(EXPECTED_VALUE.charAt(ix), (char) c); |
| } |
| assertEquals(0, composite.readableBytes()); |
| } |
| |
| @Test |
| public void readUnsignedByteShouldSkipZeroLengthBuffer() { |
| composite = new CompositeReadableBuffer(); |
| composite.addBuffer(ReadableBuffers.wrap(new byte[0])); |
| byte[] in = {1}; |
| composite.addBuffer(ReadableBuffers.wrap(in)); |
| assertEquals(1, composite.readUnsignedByte()); |
| assertEquals(0, composite.readableBytes()); |
| } |
| |
| @Test |
| public void skipBytesShouldSucceed() { |
| int remaining = EXPECTED_VALUE.length(); |
| composite.skipBytes(1); |
| remaining--; |
| assertEquals(remaining, composite.readableBytes()); |
| |
| composite.skipBytes(5); |
| remaining -= 5; |
| assertEquals(remaining, composite.readableBytes()); |
| |
| composite.skipBytes(remaining); |
| assertEquals(0, composite.readableBytes()); |
| } |
| |
| @Test |
| public void readByteArrayShouldSucceed() { |
| byte[] bytes = new byte[composite.readableBytes()]; |
| int writeIndex = 0; |
| |
| composite.readBytes(bytes, writeIndex, 1); |
| writeIndex++; |
| assertEquals(EXPECTED_VALUE.length() - writeIndex, composite.readableBytes()); |
| |
| composite.readBytes(bytes, writeIndex, 5); |
| writeIndex += 5; |
| assertEquals(EXPECTED_VALUE.length() - writeIndex, composite.readableBytes()); |
| |
| int remaining = composite.readableBytes(); |
| composite.readBytes(bytes, writeIndex, remaining); |
| writeIndex += remaining; |
| assertEquals(0, composite.readableBytes()); |
| assertEquals(bytes.length, writeIndex); |
| assertEquals(EXPECTED_VALUE, new String(bytes, UTF_8)); |
| } |
| |
| @Test |
| public void readByteBufferShouldSucceed() { |
| ByteBuffer byteBuffer = ByteBuffer.allocate(EXPECTED_VALUE.length()); |
| int remaining = EXPECTED_VALUE.length(); |
| |
| byteBuffer.limit(1); |
| composite.readBytes(byteBuffer); |
| remaining--; |
| assertEquals(remaining, composite.readableBytes()); |
| |
| byteBuffer.limit(byteBuffer.limit() + 5); |
| composite.readBytes(byteBuffer); |
| remaining -= 5; |
| assertEquals(remaining, composite.readableBytes()); |
| |
| byteBuffer.limit(byteBuffer.limit() + remaining); |
| composite.readBytes(byteBuffer); |
| assertEquals(0, composite.readableBytes()); |
| assertEquals(EXPECTED_VALUE, new String(byteBuffer.array(), UTF_8)); |
| } |
| |
| @Test |
| public void readStreamShouldSucceed() throws IOException { |
| ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| int remaining = EXPECTED_VALUE.length(); |
| |
| composite.readBytes(bos, 1); |
| remaining--; |
| assertEquals(remaining, composite.readableBytes()); |
| |
| composite.readBytes(bos, 5); |
| remaining -= 5; |
| assertEquals(remaining, composite.readableBytes()); |
| |
| composite.readBytes(bos, remaining); |
| assertEquals(0, composite.readableBytes()); |
| assertEquals(EXPECTED_VALUE, new String(bos.toByteArray(), UTF_8)); |
| } |
| |
| @Test |
| public void closeShouldCloseBuffers() { |
| composite = new CompositeReadableBuffer(); |
| ReadableBuffer mock1 = mock(ReadableBuffer.class); |
| ReadableBuffer mock2 = mock(ReadableBuffer.class); |
| composite.addBuffer(mock1); |
| composite.addBuffer(mock2); |
| |
| composite.close(); |
| verify(mock1).close(); |
| verify(mock2).close(); |
| } |
| |
| private void splitAndAdd(String value) { |
| int partLength = Math.max(1, value.length() / 4); |
| for (int startIndex = 0, endIndex = 0; startIndex < value.length(); startIndex = endIndex) { |
| endIndex = Math.min(value.length(), startIndex + partLength); |
| String part = value.substring(startIndex, endIndex); |
| composite.addBuffer(ReadableBuffers.wrap(part.getBytes(UTF_8))); |
| } |
| |
| assertEquals(value.length(), composite.readableBytes()); |
| } |
| } |