LineNumberReaderTest.java revision f6c387128427e121477c1b32ad35cdcaa5101ba3
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 18package tests.api.java.io; 19 20import java.io.IOException; 21import java.io.LineNumberReader; 22import java.io.StringReader; 23 24import dalvik.annotation.TestLevel; 25import dalvik.annotation.TestTargetClass; 26import dalvik.annotation.TestTargetNew; 27 28@TestTargetClass(LineNumberReader.class) 29public class LineNumberReaderTest extends junit.framework.TestCase { 30 31 String text = "0\n1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24\n25\n26\n27\n28\n29\n30\n31\n32\n33\n34\n35\n36\n37\n38\n39\n40\n41\n42\n43\n44\n45\n46\n47\n48\n49\n50\n51\n52\n53\n54\n55\n56\n57\n58\n59\n60\n61\n62\n63\n64\n65\n66\n67\n68\n69\n70\n71\n72\n73\n74\n75\n76\n77\n78\n79\n80\n81\n82\n83\n84\n85\n86\n87\n88\n89\n90\n91\n92\n93\n94\n95\n96\n97\n98\n99\n100\n101\n102\n103\n104\n105\n106\n107\n108\n109\n110\n111\n112\n113\n114\n115\n116\n117\n118\n119\n120\n121\n122\n123\n124\n125\n126\n127\n128\n129\n130\n131\n132\n133\n134\n135\n136\n137\n138\n139\n140\n141\n142\n143\n144\n145\n146\n147\n148\n149\n150\n151\n152\n153\n154\n155\n156\n157\n158\n159\n160\n161\n162\n163\n164\n165\n166\n167\n168\n169\n170\n171\n172\n173\n174\n175\n176\n177\n178\n179\n180\n181\n182\n183\n184\n185\n186\n187\n188\n189\n190\n191\n192\n193\n194\n195\n196\n197\n198\n199\n200\n201\n202\n203\n204\n205\n206\n207\n208\n209\n210\n211\n212\n213\n214\n215\n216\n217\n218\n219\n220\n221\n222\n223\n224\n225\n226\n227\n228\n229\n230\n231\n232\n233\n234\n235\n236\n237\n238\n239\n240\n241\n242\n243\n244\n245\n246\n247\n248\n249\n250\n251\n252\n253\n254\n255\n256\n257\n258\n259\n260\n261\n262\n263\n264\n265\n266\n267\n268\n269\n270\n271\n272\n273\n274\n275\n276\n277\n278\n279\n280\n281\n282\n283\n284\n285\n286\n287\n288\n289\n290\n291\n292\n293\n294\n295\n296\n297\n298\n299\n300\n301\n302\n303\n304\n305\n306\n307\n308\n309\n310\n311\n312\n313\n314\n315\n316\n317\n318\n319\n320\n321\n322\n323\n324\n325\n326\n327\n328\n329\n330\n331\n332\n333\n334\n335\n336\n337\n338\n339\n340\n341\n342\n343\n344\n345\n346\n347\n348\n349\n350\n351\n352\n353\n354\n355\n356\n357\n358\n359\n360\n361\n362\n363\n364\n365\n366\n367\n368\n369\n370\n371\n372\n373\n374\n375\n376\n377\n378\n379\n380\n381\n382\n383\n384\n385\n386\n387\n388\n389\n390\n391\n392\n393\n394\n395\n396\n397\n398\n399\n400\n401\n402\n403\n404\n405\n406\n407\n408\n409\n410\n411\n412\n413\n414\n415\n416\n417\n418\n419\n420\n421\n422\n423\n424\n425\n426\n427\n428\n429\n430\n431\n432\n433\n434\n435\n436\n437\n438\n439\n440\n441\n442\n443\n444\n445\n446\n447\n448\n449\n450\n451\n452\n453\n454\n455\n456\n457\n458\n459\n460\n461\n462\n463\n464\n465\n466\n467\n468\n469\n470\n471\n472\n473\n474\n475\n476\n477\n478\n479\n480\n481\n482\n483\n484\n485\n486\n487\n488\n489\n490\n491\n492\n493\n494\n495\n496\n497\n498\n499\n500\n"; 32 33 LineNumberReader lnr; 34 35 /** 36 * @tests java.io.LineNumberReader#LineNumberReader(java.io.Reader) 37 */ 38 @TestTargetNew( 39 level = TestLevel.COMPLETE, 40 notes = "", 41 method = "LineNumberReader", 42 args = {java.io.Reader.class, int.class} 43 ) 44 public void test_ConstructorLjava_io_Reader() { 45 // Test for method java.io.LineNumberReader(java.io.Reader) 46 lnr = new LineNumberReader(new StringReader(text), 4092); 47 assertEquals("Failed to create reader", 0, lnr.getLineNumber()); 48 } 49 50 /** 51 * @tests java.io.LineNumberReader#LineNumberReader(java.io.Reader, int) 52 */ 53 @TestTargetNew( 54 level = TestLevel.COMPLETE, 55 notes = "", 56 method = "LineNumberReader", 57 args = {java.io.Reader.class} 58 ) 59 public void test_ConstructorLjava_io_ReaderI() { 60 // Test for method java.io.LineNumberReader(java.io.Reader, int) 61 lnr = new LineNumberReader(new StringReader(text)); 62 assertEquals("Failed to create reader", 0, lnr.getLineNumber()); 63 } 64 65 /** 66 * @tests java.io.LineNumberReader#getLineNumber() 67 */ 68 @TestTargetNew( 69 level = TestLevel.COMPLETE, 70 notes = "", 71 method = "getLineNumber", 72 args = {} 73 ) 74 public void test_getLineNumber() { 75 // Test for method int java.io.LineNumberReader.getLineNumber() 76 lnr = new LineNumberReader(new StringReader(text)); 77 assertEquals("Returned incorrect line number--expected 0, got ", 0, lnr 78 .getLineNumber()); 79 try { 80 lnr.readLine(); 81 lnr.readLine(); 82 } catch (IOException e) { 83 fail("Exception during getLineNumberTest: " + e.toString()); 84 } 85 assertTrue("Returned incorrect line number--expected 2, got: " 86 + lnr.getLineNumber(), lnr.getLineNumber() == 2); 87 } 88 89 /** 90 * @tests java.io.LineNumberReader#mark(int) 91 */ 92 @TestTargetNew( 93 level = TestLevel.COMPLETE, 94 method = "mark", 95 args = {int.class} 96 ) 97 public void test_markI() throws IOException { 98 lnr = new LineNumberReader(new StringReader(text)); 99 String line; 100 lnr.skip(80); 101 lnr.mark(100); 102 line = lnr.readLine(); 103 lnr.reset(); 104 assertTrue("Test 1: Failed to return to marked position.", 105 line.equals(lnr.readLine())); 106 107 lnr.close(); 108 try { 109 lnr.mark(42); 110 fail("Test 2: IOException expected."); 111 } catch (IOException e) { 112 // Expected. 113 } 114 115 // The spec does not say the mark has to be invalidated 116 } 117 118 /** 119 * @tests java.io.LineNumberReader#read() 120 */ 121 @TestTargetNew( 122 level = TestLevel.COMPLETE, 123 method = "read", 124 args = {} 125 ) 126 public void test_read() throws IOException { 127 lnr = new LineNumberReader(new StringReader(text)); 128 129 int c = lnr.read(); 130 assertEquals("Test 1: Read returned incorrect character;", 131 '0', c); 132 lnr.read(); 133 assertEquals("Test 2: Read failed to increase the line number;", 134 1, lnr.getLineNumber()); 135 136 lnr.close(); 137 try { 138 lnr.read(); 139 fail("Test 3: IOException expected."); 140 } catch (IOException e) { 141 // Expected. 142 } 143 } 144 145 /** 146 * @tests java.io.LineNumberReader#read(char[], int, int) 147 */ 148 @TestTargetNew( 149 level = TestLevel.PARTIAL_COMPLETE, 150 method = "read", 151 args = {char[].class, int.class, int.class} 152 ) 153 public void test_read$CII() throws IOException { 154 lnr = new LineNumberReader(new StringReader(text)); 155 char[] c = new char[100]; 156 lnr.read(c, 0, 4); 157 assertTrue("Test 1: Read returned incorrect characters.", "0\n1\n" 158 .equals(new String(c, 0, 4))); 159 assertEquals("Test 2: Read failed to inc lineNumber", 160 2, lnr.getLineNumber()); 161 162 lnr.close(); 163 try { 164 lnr.read(c, 0, 4); 165 fail("Test 3: IOException expected."); 166 } catch (IOException e) { 167 // Expected. 168 } 169 } 170 171 /** 172 * @tests java.io.LineNumberReader#read(char[], int, int) 173 */ 174 @TestTargetNew( 175 level = TestLevel.PARTIAL_COMPLETE, 176 method = "read", 177 args = {char[].class, int.class, int.class} 178 ) 179 public void test_read$CII_Exception() throws IOException { 180 lnr = new LineNumberReader(new StringReader(text)); 181 char[] c = new char[10]; 182 183 try { 184 lnr.read(c, -1, 1); 185 fail("IndexOutOfBoundsException expected."); 186 } catch (IndexOutOfBoundsException e) { 187 // Expected. 188 } 189 190 try { 191 lnr.read(c, 0, -1); 192 fail("IndexOutOfBoundsException expected."); 193 } catch (IndexOutOfBoundsException e) { 194 // Expected. 195 } 196 197 try { 198 lnr.read(c, 10, 1); 199 fail("IndexOutOfBoundsException expected."); 200 } catch (IndexOutOfBoundsException e) { 201 // Expected. 202 } 203 } 204 205 /** 206 * @tests java.io.LineNumberReader#readLine() 207 */ 208 @TestTargetNew( 209 level = TestLevel.COMPLETE, 210 method = "readLine", 211 args = {} 212 ) 213 public void test_readLine() throws IOException { 214 lnr = new LineNumberReader(new StringReader(text)); 215 assertEquals("Returned incorrect line number", 0, lnr.getLineNumber()); 216 String line = null; 217 lnr.readLine(); 218 line = lnr.readLine(); 219 assertEquals("Test 1: Returned incorrect string;", "1", line); 220 assertTrue("Test 2: Returned incorrect line number:" + lnr.getLineNumber(), 221 lnr.getLineNumber() == 2); 222 223 lnr.close(); 224 try { 225 lnr.readLine(); 226 fail("Test 3: IOException expected."); 227 } catch (IOException e) { 228 // Expected. 229 } 230 } 231 232 /** 233 * @tests java.io.LineNumberReader#reset() 234 */ 235 @TestTargetNew( 236 level = TestLevel.COMPLETE, 237 method = "reset", 238 args = {} 239 ) 240 public void test_reset() throws IOException { 241 lnr = new LineNumberReader(new StringReader(text)); 242 assertEquals("Test 1: Returned incorrect line number;", 243 0, lnr.getLineNumber()); 244 String line = null; 245 lnr.mark(100); 246 lnr.readLine(); 247 lnr.reset(); 248 line = lnr.readLine(); 249 assertEquals("Test 2: Failed to reset reader", "0", line); 250 251 lnr.mark(100); 252 lnr.close(); 253 try { 254 lnr.reset(); 255 fail("Test 3: IOException expected."); 256 } catch (IOException e) { 257 // Expected. 258 } 259 } 260 261 /** 262 * @tests java.io.LineNumberReader#setLineNumber(int) 263 */ 264 @TestTargetNew( 265 level = TestLevel.COMPLETE, 266 notes = "", 267 method = "setLineNumber", 268 args = {int.class} 269 ) 270 public void test_setLineNumberI() { 271 // Test for method void java.io.LineNumberReader.setLineNumber(int) 272 lnr = new LineNumberReader(new StringReader(text)); 273 lnr.setLineNumber(1001); 274 assertEquals("set incorrect line number", 1001, lnr.getLineNumber()); 275 } 276 277 /** 278 * @tests java.io.LineNumberReader#skip(long) 279 */ 280 @TestTargetNew( 281 level = TestLevel.COMPLETE, 282 method = "skip", 283 args = {long.class} 284 ) 285 public void test_skipJ() throws IOException { 286 lnr = new LineNumberReader(new StringReader(text)); 287 char[] c = new char[100]; 288 long skipped = lnr.skip(80); 289 assertEquals("Test 1: Incorrect number of characters skipped;", 290 80, skipped); 291 lnr.read(c, 0, 100); 292 assertTrue("Test 2: Failed to skip to correct position.", 293 text.substring(80, 180).equals(new String(c, 0, c.length))); 294 295 try { 296 lnr.skip(-1); 297 fail("Test 3: IllegalArgumentException expected."); 298 } catch (IllegalArgumentException e) { 299 // Expected. 300 } 301 302 lnr.close(); 303 try { 304 lnr.skip(1); 305 fail("Test 4: IOException expected."); 306 } catch (IOException e) { 307 // Expected. 308 } 309 } 310} 311