1/* 2 * Copyright (C) 2008 The Android Open Source Project 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 17package libcore.java.io; 18 19import java.io.ByteArrayOutputStream; 20import java.io.DataOutputStream; 21import junit.framework.TestCase; 22 23/** 24 * Basic tests for DataOutputStreams. 25 */ 26public class OldAndroidDataOutputStreamTest extends TestCase { 27 28 public void testDataOutputStream() throws Exception { 29 String str = "AbCdEfGhIjKlMnOpQrStUvWxYz"; 30 ByteArrayOutputStream aa = new ByteArrayOutputStream(); 31 DataOutputStream a = new DataOutputStream(aa); 32 33 try { 34 a.write(str.getBytes(), 0, 26); 35 a.write('A'); 36 37 assertEquals(27, aa.size()); 38 assertEquals("AbCdEfGhIjKlMnOpQrStUvWxYzA", aa.toString()); 39 40 a.writeByte('B'); 41 assertEquals("AbCdEfGhIjKlMnOpQrStUvWxYzAB", aa.toString()); 42 a.writeBytes("BYTES"); 43 assertEquals("AbCdEfGhIjKlMnOpQrStUvWxYzABBYTES", aa.toString()); 44 } finally { 45 a.close(); 46 } 47 } 48} 49