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annotate test/org/tmatesoft/hg/test/TestByteChannel.java @ 599:55b7987c1796

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Do not instantiate intermediate arrays
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 03 May 2013 15:29:26 +0200
parents 2813a26b8999
children
rev   line source
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1 /*
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2 * Copyright (c) 2011-2012 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.test;
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18
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19 import static org.junit.Assert.*;
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21 import java.io.File;
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22 import java.io.FileWriter;
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23 import java.io.IOException;
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24 import java.util.Collections;
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25 import java.util.Map;
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27 import org.junit.Assert;
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28 import org.junit.Test;
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29 import org.tmatesoft.hg.internal.BasicSessionContext;
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30 import org.tmatesoft.hg.internal.ByteArrayChannel;
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31 import org.tmatesoft.hg.internal.Internals;
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32 import org.tmatesoft.hg.repo.HgDataFile;
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33 import org.tmatesoft.hg.repo.HgLookup;
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34 import org.tmatesoft.hg.repo.HgRepository;
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36 /**
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37 *
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38 * @author Artem Tikhomirov
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39 * @author TMate Software Ltd.
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40 */
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41 public class TestByteChannel {
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42
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43 private HgRepository repo;
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44
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45 public static void main(String[] args) throws Exception {
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46 // HgRepoFacade rf = new HgRepoFacade();
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47 // rf.init();
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48 // HgDataFile file = rf.getRepository().getFileNode("src/org/tmatesoft/hg/internal/KeywordFilter.java");
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49 // for (int i = file.getLastRevision(); i >= 0; i--) {
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50 // System.out.print("Content for revision:" + i);
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51 // compareContent(file, i);
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52 // System.out.println(" OK");
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53 // }
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54 //CatCommand cmd = rf.createCatCommand();
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55 }
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56
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57 // private static void compareContent(HgDataFile file, int rev) throws Exception {
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58 // byte[] oldAccess = file.content(rev);
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59 // ByteArrayChannel ch = new ByteArrayChannel();
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60 // file.content(rev, ch);
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61 // byte[] newAccess = ch.toArray();
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62 // Assert.assertArrayEquals(oldAccess, newAccess);
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63 // // don't trust anyone (even JUnit)
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64 // if (!Arrays.equals(oldAccess, newAccess)) {
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65 // throw new RuntimeException("Failed:" + rev);
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66 // }
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67 // }
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68
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69 @Test
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70 public void testContent() throws Exception {
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71 repo = Configuration.get().find("log-1");
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72 final byte[] expectedContent = new byte[] { 'a', ' ', 13, 10 };
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73 ByteArrayChannel ch = new ByteArrayChannel();
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74 repo.getFileNode("dir/b").content(0, ch);
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75 assertArrayEquals(expectedContent, ch.toArray());
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76 repo.getFileNode("d").content(HgRepository.TIP, ch = new ByteArrayChannel() );
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77 assertArrayEquals(expectedContent, ch.toArray());
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78 }
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80 @Test
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81 public void testStripMetadata() throws Exception {
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82 repo = Configuration.get().find("log-1");
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83 ByteArrayChannel ch = new ByteArrayChannel();
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84 HgDataFile dir_b = repo.getFileNode("dir/b");
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85 Assert.assertTrue(dir_b.isCopy());
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86 Assert.assertEquals("b", dir_b.getCopySourceName().toString());
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87 Assert.assertEquals("e44751cdc2d14f1eb0146aa64f0895608ad15917", dir_b.getCopySourceRevision().toString());
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88 dir_b.content(0, ch);
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89 // assert rawContent has 1 10 ... 1 10
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90 assertArrayEquals("a \r\n".getBytes(), ch.toArray());
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91 //
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92 // try once again to make sure metadata records/extracts correct offsets
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93 dir_b.content(0, ch = new ByteArrayChannel());
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94 assertArrayEquals("a \r\n".getBytes(), ch.toArray());
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95 }
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97 @Test
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98 public void testWorkingCopyFileAccess() throws Exception {
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99 final File repoDir = RepoUtils.initEmptyTempRepo("testWorkingCopyFileAccess");
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100 final Map<String, ?> props = Collections.singletonMap(Internals.CFG_PROPERTY_REVLOG_STREAM_CACHE, false);
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101 repo = new HgLookup(new BasicSessionContext(props, null)).detect(repoDir);
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102 File f1 = new File(repoDir, "file1");
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103 final String c1 = "First", c2 = "Second", c3 = "Third";
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104 ByteArrayChannel ch;
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105 ExecHelper exec = new ExecHelper(new OutputParser.Stub(), repoDir);
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106 // commit cset 0
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107 write(f1, c1);
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108 exec.run("hg", "add");
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109 Assert.assertEquals(0, exec.getExitValue());
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110 exec.run("hg", "commit", "-m", "c0");
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111 Assert.assertEquals(0, exec.getExitValue());
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112 // commit cset 1
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113 write(f1, c2);
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114 exec.run("hg", "commit", "-m", "c1");
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115 assertEquals(0, exec.getExitValue());
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116 //
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117 // modify working copy
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118 write(f1, c3);
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119 //
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120 HgDataFile df = repo.getFileNode(f1.getName());
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121 // 1. Shall take content of the file from the dir
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122 df.workingCopy(ch = new ByteArrayChannel());
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123 assertArrayEquals(c3.getBytes(), ch.toArray());
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124 // 2. Shall supply working copy even if no local file is there
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125 f1.delete();
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126 assertFalse(f1.exists());
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127 df = repo.getFileNode(f1.getName());
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128 df.workingCopy(ch = new ByteArrayChannel());
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129 assertArrayEquals(c2.getBytes(), ch.toArray());
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130 //
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131 // 3. Shall extract revision of the file that corresponds actual parents (from dirstate) not the TIP as it was
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132 exec.run("hg", "update", "-r", "0");
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133 assertEquals(0, exec.getExitValue());
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134 f1.delete();
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135 assertFalse(f1.exists());
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136 // there's no file and workingCopy shall do some extra work to find out actual revision to check out
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137 df = repo.getFileNode(f1.getName());
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138 df.workingCopy(ch = new ByteArrayChannel());
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139 assertArrayEquals(c1.getBytes(), ch.toArray());
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140 }
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141
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142 private static void write(File f, String content) throws IOException {
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143 FileWriter fw = new FileWriter(f);
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144 fw.write(content);
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145 fw.close();
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146 }
115
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147 }