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 android.core; 18 19import junit.framework.TestCase; 20 21import java.io.ByteArrayOutputStream; 22import java.io.DataOutputStream; 23import android.test.suitebuilder.annotation.SmallTest; 24 25/** 26 * Basic tests for DataOutputStreams. 27 */ 28public class DataOutputStreamTest extends TestCase { 29 30 @SmallTest 31 public void testDataOutputStream() throws Exception { 32 String str = "AbCdEfGhIjKlMnOpQrStUvWxYz"; 33 ByteArrayOutputStream aa = new ByteArrayOutputStream(); 34 DataOutputStream a = new DataOutputStream(aa); 35 36 try { 37 a.write(str.getBytes(), 0, 26); 38 a.write('A'); 39 40 assertEquals(27, aa.size()); 41 assertEquals("AbCdEfGhIjKlMnOpQrStUvWxYzA", aa.toString()); 42 43 a.writeByte('B'); 44 assertEquals("AbCdEfGhIjKlMnOpQrStUvWxYzAB", aa.toString()); 45 a.writeBytes("BYTES"); 46 assertEquals("AbCdEfGhIjKlMnOpQrStUvWxYzABBYTES", aa.toString()); 47 } finally { 48 a.close(); 49 } 50 } 51} 52