1 /* 2 * Copyright 2014 The gRPC Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package io.grpc.internal; 18 19 import static com.google.common.base.Charsets.UTF_8; 20 import static io.grpc.internal.ReadableBuffers.wrap; 21 import static org.junit.Assert.assertEquals; 22 import static org.junit.Assert.assertSame; 23 import static org.junit.Assert.assertTrue; 24 25 import org.junit.Test; 26 27 /** 28 * Tests for the array-backed {@link ReadableBuffer} returned by {@link ReadableBuffers#wrap(byte[], 29 * int, int)}. 30 */ 31 public class ReadableBuffersArrayTest extends ReadableBufferTestBase { 32 33 @Test 34 public void bufferShouldExposeArray() { 35 byte[] array = msg.getBytes(UTF_8); 36 ReadableBuffer buffer = wrap(array, 1, msg.length() - 1); 37 assertTrue(buffer.hasArray()); 38 assertSame(array, buffer.array()); 39 assertEquals(1, buffer.arrayOffset()); 40 41 // Now read a byte and verify that the offset changes. 42 buffer.readUnsignedByte(); 43 assertEquals(2, buffer.arrayOffset()); 44 } 45 46 @Override 47 protected ReadableBuffer buffer() { 48 return ReadableBuffers.wrap(msg.getBytes(UTF_8), 0, msg.length()); 49 } 50 } 51
