| /* |
| * Copyright 2015, gRPC Authors 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. |
| */ |
| |
| package io.grpc.internal; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** |
| * Abstract base class for tests of {@link WritableBuffer} subclasses. |
| */ |
| @RunWith(JUnit4.class) |
| public abstract class WritableBufferTestBase { |
| |
| /** |
| * Returns a new buffer for every test case with |
| * at least 100 byte of capacity. |
| */ |
| protected abstract WritableBuffer buffer(); |
| |
| /** |
| * Bytes written to {@link #buffer()}. |
| */ |
| protected abstract byte[] writtenBytes(); |
| |
| @Test(expected = RuntimeException.class) |
| public void testWriteNegativeLength() { |
| buffer().write(new byte[1], 0, -1); |
| } |
| |
| @Test(expected = IndexOutOfBoundsException.class) |
| public void testWriteNegativeSrcIndex() { |
| buffer().write(new byte[1], -1, 0); |
| } |
| |
| @Test(expected = IndexOutOfBoundsException.class) |
| public void testWriteSrcIndexAndLengthExceedSrcLength() { |
| buffer().write(new byte[10], 1, 10); |
| } |
| |
| @Test(expected = IndexOutOfBoundsException.class) |
| public void testWriteSrcIndexAndLengthExceedWritableBytes() { |
| buffer().write(new byte[buffer().writableBytes()], 1, buffer().writableBytes()); |
| } |
| |
| @Test |
| public void testWritableAndReadableBytes() { |
| int before = buffer().writableBytes(); |
| buffer().write(new byte[10], 0, 5); |
| |
| assertEquals(5, before - buffer().writableBytes()); |
| assertEquals(5, buffer().readableBytes()); |
| } |
| |
| @Test |
| public void testWriteSrcIndex() { |
| byte[] b = new byte[10]; |
| for (byte i = 5; i < 10; i++) { |
| b[i] = i; |
| } |
| |
| buffer().write(b, 5, 5); |
| |
| assertEquals(5, buffer().readableBytes()); |
| byte[] writtenBytes = writtenBytes(); |
| assertEquals(5, writtenBytes.length); |
| for (int i = 0; i < writtenBytes.length; i++) { |
| assertEquals(5 + i, writtenBytes[i]); |
| } |
| } |
| |
| @Test |
| public void testMultipleWrites() { |
| byte[] b = new byte[100]; |
| for (byte i = 0; i < b.length; i++) { |
| b[i] = i; |
| } |
| |
| // Write in chunks of 10 bytes |
| for (int i = 0; i < 10; i++) { |
| buffer().write(b, 10 * i, 10); |
| assertEquals(10 * (i + 1), buffer().readableBytes()); |
| } |
| |
| assertArrayEquals(b, writtenBytes()); |
| } |
| } |