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 17 package android.core; 18 19 import junit.framework.TestCase; 20 21 import java.io.BufferedInputStream; 22 import java.io.ByteArrayInputStream; 23 import android.test.suitebuilder.annotation.SmallTest; 24 25 /** 26 * Tests to verify that simple functionality works for BufferedInputStreams. 27 */ 28 public class BufferedInputStreamTest extends TestCase { 29 30 @SmallTest testBufferedInputStream()31 public void testBufferedInputStream() throws Exception { 32 String str = "AbCdEfGhIjKlM\nOpQrStUvWxYz"; 33 ByteArrayInputStream aa = new ByteArrayInputStream(str.getBytes()); 34 ByteArrayInputStream ba = new ByteArrayInputStream(str.getBytes()); 35 ByteArrayInputStream ca = new ByteArrayInputStream(str.getBytes()); 36 ByteArrayInputStream da = new ByteArrayInputStream(str.getBytes()); 37 ByteArrayInputStream ea = new ByteArrayInputStream(str.getBytes()); 38 39 BufferedInputStream a = new BufferedInputStream(aa, 6); 40 try { 41 assertEquals(str, IOUtil.read(a)); 42 } finally { 43 a.close(); 44 } 45 46 BufferedInputStream b = new BufferedInputStream(ba, 7); 47 try { 48 assertEquals("AbCdEfGhIj", IOUtil.read(b, 10)); 49 } finally { 50 b.close(); 51 } 52 53 BufferedInputStream c = new BufferedInputStream(ca, 9); 54 try { 55 assertEquals("bdfhjl\nprtvxz", IOUtil.skipRead(c)); 56 } finally { 57 c.close(); 58 } 59 60 BufferedInputStream d = new BufferedInputStream(da, 9); 61 try { 62 assertEquals('A', d.read()); 63 d.mark(15); 64 assertEquals('b', d.read()); 65 assertEquals('C', d.read()); 66 d.reset(); 67 assertEquals('b', d.read()); 68 } finally { 69 d.close(); 70 } 71 72 BufferedInputStream e = new BufferedInputStream(ea, 11); 73 try { 74 // test that we can ask for more than is present, and that we'll get 75 // back only what is there. 76 assertEquals(str, IOUtil.read(e, 10000)); 77 } finally { 78 e.close(); 79 } 80 } 81 } 82