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 libcore.java.io; 19 20 import java.io.IOException; 21 import java.io.LineNumberReader; 22 import java.io.StringReader; 23 import junit.framework.TestCase; 24 25 public class OldLineNumberReaderTest extends TestCase { 26 27 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"; 28 29 LineNumberReader lnr; 30 31 public void test_markI() throws IOException { 32 lnr = new LineNumberReader(new StringReader(text)); 33 String line; 34 lnr.skip(80); 35 lnr.mark(100); 36 line = lnr.readLine(); 37 lnr.reset(); 38 assertTrue("Test 1: Failed to return to marked position.", 39 line.equals(lnr.readLine())); 40 41 lnr.close(); 42 try { 43 lnr.mark(42); 44 fail("Test 2: IOException expected."); 45 } catch (IOException e) { 46 // Expected. 47 } 48 49 // The spec does not say the mark has to be invalidated 50 } 51 52 /** 53 * java.io.LineNumberReader#read() 54 */ 55 public void test_read() throws IOException { 56 lnr = new LineNumberReader(new StringReader(text)); 57 58 int c = lnr.read(); 59 assertEquals("Test 1: Read returned incorrect character;", 60 '0', c); 61 lnr.read(); 62 assertEquals("Test 2: Read failed to increase the line number;", 63 1, lnr.getLineNumber()); 64 65 lnr.close(); 66 try { 67 lnr.read(); 68 fail("Test 3: IOException expected."); 69 } catch (IOException e) { 70 // Expected. 71 } 72 } 73 74 /** 75 * java.io.LineNumberReader#read(char[], int, int) 76 */ 77 public void test_read$CII() throws IOException { 78 lnr = new LineNumberReader(new StringReader(text)); 79 char[] c = new char[100]; 80 lnr.read(c, 0, 4); 81 assertTrue("Test 1: Read returned incorrect characters.", "0\n1\n" 82 .equals(new String(c, 0, 4))); 83 assertEquals("Test 2: Read failed to inc lineNumber", 84 2, lnr.getLineNumber()); 85 86 lnr.close(); 87 try { 88 lnr.read(c, 0, 4); 89 fail("Test 3: IOException expected."); 90 } catch (IOException e) { 91 // Expected. 92 } 93 } 94 95 public void test_read$CII_Exception() throws IOException { 96 lnr = new LineNumberReader(new StringReader(text)); 97 char[] c = new char[10]; 98 99 try { 100 lnr.read(c, -1, 1); 101 fail("IndexOutOfBoundsException expected."); 102 } catch (IndexOutOfBoundsException e) { 103 // Expected. 104 } 105 106 try { 107 lnr.read(c, 0, -1); 108 fail("IndexOutOfBoundsException expected."); 109 } catch (IndexOutOfBoundsException e) { 110 // Expected. 111 } 112 113 try { 114 lnr.read(c, 10, 1); 115 fail("IndexOutOfBoundsException expected."); 116 } catch (IndexOutOfBoundsException e) { 117 // Expected. 118 } 119 } 120 121 public void test_readLine() throws IOException { 122 lnr = new LineNumberReader(new StringReader(text)); 123 assertEquals("Returned incorrect line number", 0, lnr.getLineNumber()); 124 String line = null; 125 lnr.readLine(); 126 line = lnr.readLine(); 127 assertEquals("Test 1: Returned incorrect string;", "1", line); 128 assertTrue("Test 2: Returned incorrect line number:" + lnr.getLineNumber(), 129 lnr.getLineNumber() == 2); 130 131 lnr.close(); 132 try { 133 lnr.readLine(); 134 fail("Test 3: IOException expected."); 135 } catch (IOException e) { 136 // Expected. 137 } 138 } 139 140 public void test_reset() throws IOException { 141 lnr = new LineNumberReader(new StringReader(text)); 142 assertEquals("Test 1: Returned incorrect line number;", 143 0, lnr.getLineNumber()); 144 String line = null; 145 lnr.mark(100); 146 lnr.readLine(); 147 lnr.reset(); 148 line = lnr.readLine(); 149 assertEquals("Test 2: Failed to reset reader", "0", line); 150 151 lnr.mark(100); 152 lnr.close(); 153 try { 154 lnr.reset(); 155 fail("Test 3: IOException expected."); 156 } catch (IOException e) { 157 // Expected. 158 } 159 } 160 161 public void test_skipJ() throws IOException { 162 lnr = new LineNumberReader(new StringReader(text)); 163 char[] c = new char[100]; 164 long skipped = lnr.skip(80); 165 assertEquals("Test 1: Incorrect number of characters skipped;", 166 80, skipped); 167 lnr.read(c, 0, 100); 168 assertTrue("Test 2: Failed to skip to correct position.", 169 text.substring(80, 180).equals(new String(c, 0, c.length))); 170 171 try { 172 lnr.skip(-1); 173 fail("Test 3: IllegalArgumentException expected."); 174 } catch (IllegalArgumentException e) { 175 // Expected. 176 } 177 178 lnr.close(); 179 try { 180 lnr.skip(1); 181 fail("Test 4: IOException expected."); 182 } catch (IOException e) { 183 // Expected. 184 } 185 } 186 } 187
