1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.harmony.tests.java.io; 19 20 import java.io.CharArrayReader; 21 import java.io.IOException; 22 23 public class CharArrayReaderTest extends junit.framework.TestCase { 24 25 char[] hw = { 'H', 'e', 'l', 'l', 'o', 'W', 'o', 'r', 'l', 'd' }; 26 27 CharArrayReader cr; 28 29 /** 30 * java.io.CharArrayReader#CharArrayReader(char[]) 31 */ 32 public void test_Constructor$C() throws IOException { 33 cr = new CharArrayReader(hw); 34 assertTrue("Failed to create reader", cr.ready()); 35 } 36 37 /** 38 * java.io.CharArrayReader#CharArrayReader(char[], int, int) 39 */ 40 public void test_Constructor$CII() throws IOException { 41 cr = new CharArrayReader(hw, 5, 5); 42 assertTrue("Failed to create reader", cr.ready()); 43 44 int c = cr.read(); 45 assertTrue("Created incorrect reader--returned '" + (char) c 46 + "' intsead of 'W'", c == 'W'); 47 } 48 49 /** 50 * java.io.CharArrayReader#close() 51 */ 52 public void test_close() { 53 cr = new CharArrayReader(hw); 54 cr.close(); 55 try { 56 cr.read(); 57 fail("Failed to throw exception on read from closed stream"); 58 } catch (IOException e) { 59 // Expected 60 } 61 62 // No-op 63 cr.close(); 64 } 65 66 /** 67 * java.io.CharArrayReader#mark(int) 68 */ 69 public void test_markI() throws IOException { 70 cr = new CharArrayReader(hw); 71 cr.skip(5L); 72 cr.mark(100); 73 cr.read(); 74 cr.reset(); 75 assertEquals("Failed to mark correct position", 'W', cr.read()); 76 } 77 78 /** 79 * java.io.CharArrayReader#markSupported() 80 */ 81 public void test_markSupported() { 82 cr = new CharArrayReader(hw); 83 assertTrue("markSupported returned false", cr.markSupported()); 84 } 85 86 /** 87 * java.io.CharArrayReader#read() 88 */ 89 public void test_read() throws IOException { 90 cr = new CharArrayReader(hw); 91 assertEquals("Read returned incorrect char", 'H', cr.read()); 92 cr = new CharArrayReader(new char[] { '\u8765' }); 93 assertTrue("Incorrect double byte char", cr.read() == '\u8765'); 94 } 95 96 /** 97 * java.io.CharArrayReader#read(char[], int, int) 98 */ 99 public void test_read$CII() throws IOException { 100 char[] c = new char[11]; 101 cr = new CharArrayReader(hw); 102 cr.read(c, 1, 10); 103 assertTrue("Read returned incorrect chars", new String(c, 1, 10) 104 .equals(new String(hw, 0, 10))); 105 } 106 107 /** 108 * java.io.CharArrayReader#ready() 109 */ 110 public void test_ready() throws IOException { 111 cr = new CharArrayReader(hw); 112 assertTrue("ready returned false", cr.ready()); 113 cr.skip(1000); 114 assertTrue("ready returned true", !cr.ready()); 115 cr.close(); 116 117 try { 118 cr.ready(); 119 fail("No exception 1"); 120 } catch (IOException e) { 121 // expected 122 } 123 try { 124 cr = new CharArrayReader(hw); 125 cr.close(); 126 cr.ready(); 127 fail("No exception 2"); 128 } catch (IOException e) { 129 // expected 130 } 131 } 132 133 /** 134 * java.io.CharArrayReader#reset() 135 */ 136 public void test_reset() throws IOException { 137 cr = new CharArrayReader(hw); 138 cr.skip(5L); 139 cr.mark(100); 140 cr.read(); 141 cr.reset(); 142 assertEquals("Reset failed to return to marker position", 'W', cr 143 .read()); 144 145 // Regression for HARMONY-4357 146 String str = "offsetHello world!"; 147 char[] data = new char[str.length()]; 148 str.getChars(0, str.length(), data, 0); 149 int offsetLength = 6; 150 int length = data.length - offsetLength; 151 152 CharArrayReader reader = new CharArrayReader(data, offsetLength, length); 153 reader.reset(); 154 for (int i = 0; i < length; i++) { 155 assertEquals(data[offsetLength + i], (char) reader.read()); 156 } 157 } 158 159 /** 160 * java.io.CharArrayReader#skip(long) 161 */ 162 public void test_skipJ() throws IOException { 163 cr = new CharArrayReader(hw); 164 long skipped = cr.skip(5L); 165 166 assertEquals("Failed to skip correct number of chars", 5L, skipped); 167 assertEquals("Skip skipped wrong chars", 'W', cr.read()); 168 } 169 170 /** 171 * java.io.CharArrayReader#skip(long) overflow 172 */ 173 public void test_skipOverflow() throws IOException { 174 cr = new CharArrayReader(hw); 175 assertEquals(1L, cr.skip(1L)); 176 assertEquals(hw.length - 1, cr.skip(Long.MAX_VALUE)); 177 } 178 179 /** 180 * Tears down the fixture, for example, close a network connection. This 181 * method is called after a test is executed. 182 */ 183 protected void tearDown() { 184 if (cr != null) 185 cr.close(); 186 } 187 } 188
