1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 */ 19 package org.apache.thrift.transport; 20 21 import java.util.Arrays; 22 23 import junit.framework.TestCase; 24 25 public class TestTMemoryInputTransport extends TestCase { testFresh()26 public void testFresh() throws Exception { 27 byte[] input_buf = new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 28 TMemoryInputTransport trans = new TMemoryInputTransport(input_buf); 29 assertEquals(0, trans.getBufferPosition()); 30 assertEquals(input_buf, trans.getBuffer()); 31 assertEquals(10, trans.getBytesRemainingInBuffer()); 32 33 byte[] buf1 = new byte[4]; 34 trans.readAll(buf1, 0, 4); 35 assertTrue(Arrays.equals(new byte[]{1, 2, 3, 4}, buf1)); 36 assertEquals(4, trans.getBufferPosition()); 37 assertEquals(6, trans.getBytesRemainingInBuffer()); 38 39 trans.consumeBuffer(2); 40 41 assertEquals(6, trans.getBufferPosition()); 42 assertEquals(4, trans.getBytesRemainingInBuffer()); 43 44 trans.readAll(buf1, 0, 4); 45 assertTrue(Arrays.equals(new byte[]{7, 8, 9, 10}, buf1)); 46 assertEquals(10, trans.getBufferPosition()); 47 assertEquals(0, trans.getBytesRemainingInBuffer()); 48 } 49 testReused()50 public void testReused() throws Exception { 51 byte[] input_buf = new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 52 TMemoryInputTransport trans = new TMemoryInputTransport(input_buf); 53 assertEquals(0, trans.getBufferPosition()); 54 assertEquals(input_buf, trans.getBuffer()); 55 assertEquals(10, trans.getBytesRemainingInBuffer()); 56 57 byte[] new_buf = new byte[]{10, 9, 8}; 58 trans.reset(new_buf); 59 assertEquals(0, trans.getBufferPosition()); 60 assertEquals(new_buf, trans.getBuffer()); 61 assertEquals(3, trans.getBytesRemainingInBuffer()); 62 } 63 testWithOffsetAndLength()64 public void testWithOffsetAndLength() throws Exception { 65 byte[] input_buf = new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; 66 TMemoryInputTransport trans = new TMemoryInputTransport(input_buf, 1, 3); 67 assertEquals(1, trans.getBufferPosition()); 68 assertEquals(3, trans.getBytesRemainingInBuffer()); 69 byte[] readBuffer = new byte[3]; 70 trans.readAll(readBuffer, 0, 3); 71 assertTrue(Arrays.equals(new byte[]{2, 3, 4}, readBuffer)); 72 73 try { 74 assertEquals(0, trans.readAll(readBuffer, 0, 3)); 75 fail("should have thrown an exception"); 76 } catch (Exception e) { 77 // yay 78 } 79 80 trans.reset(input_buf, 3, 4); 81 readBuffer = new byte[4]; 82 trans.readAll(readBuffer, 0, 4); 83 assertTrue(Arrays.equals(new byte[]{4, 5, 6, 7}, readBuffer)); 84 } 85 } 86