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annotate test/org/tmatesoft/hg/test/TestKeywordFilter.java @ 711:a62079bc422b

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Keyword filtering that doesn't depend on input buffer size and the way input lines got split between filter() calls. KewordFilter got state to keep processed suspicious ...$ lines
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Fri, 11 Oct 2013 21:35:41 +0200
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1 /*
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2 * Copyright (c) 2013 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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19 import java.io.File;
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20 import java.nio.ByteBuffer;
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22 import org.junit.Assert;
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23 import org.junit.Test;
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24 import org.tmatesoft.hg.internal.ByteArrayChannel;
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25 import org.tmatesoft.hg.internal.Filter;
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26 import org.tmatesoft.hg.internal.Filter.Direction;
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27 import org.tmatesoft.hg.internal.KeywordFilter;
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28 import org.tmatesoft.hg.repo.HgLookup;
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29 import org.tmatesoft.hg.repo.HgRepository;
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30 import org.tmatesoft.hg.repo.HgRepositoryFiles;
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31 import org.tmatesoft.hg.util.Path;
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32
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33 /**
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34 *
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35 * @author Artem Tikhomirov
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36 * @author TMate Software Ltd.
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37 */
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38 public class TestKeywordFilter {
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39
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40 private HgRepository repo;
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42 @Test
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43 public void testSmallBuffer() throws Exception {
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44 initRepo();
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45 final Filter kwFilter = createFilter(Filter.Direction.ToRepo);
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46 final byte[] in = "1\n2\n3\n".getBytes();
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47 ByteBuffer bb = kwFilter.filter(ByteBuffer.wrap(in));
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48 final byte[] out = new byte[bb.remaining()];
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49 bb.get(out);
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50 Assert.assertArrayEquals(in, out);
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51 }
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53 @Test
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54 public void testKeywordDrop() throws Exception {
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55 initRepo();
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56 final Filter kwFilter = createFilter(Filter.Direction.ToRepo);
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57 final byte[] in = "1\n$Revision: cf200271439a7ec256151b30bc4360b21db3542e$\n3\n".getBytes();
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58 ByteBuffer bb = kwFilter.filter(ByteBuffer.wrap(in));
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59 final byte[] out = new byte[bb.remaining()];
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60 bb.get(out);
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61 Assert.assertArrayEquals("1\n$Revision$\n3\n".getBytes(), out);
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62 }
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64 @Test
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65 public void testKeywordExpansion() throws Exception {
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66 Assert.fail("Need real repo with changeset to check kw expansion");
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67 }
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69 /**
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70 * what if keyword is split between two input buffers
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71 */
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72 @Test
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73 public void testKeywordSplitInBuffer() throws Exception {
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74 initRepo();
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75 final byte[] in1 = "1\n$Id:whatever".getBytes();
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76 final byte[] in2 = " continues here$\n3\n".getBytes();
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77 ByteArrayChannel out = new ByteArrayChannel();
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78 final Filter kwFilter = createFilter(Filter.Direction.ToRepo);
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79 out.write(kwFilter.filter(ByteBuffer.wrap(in1)));
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80 out.write(kwFilter.filter(ByteBuffer.wrap(in2)));
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81 Assert.assertEquals("1\n$Id$\n3\n", new String(out.toArray()));
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82 // Same as above, to extreme - only $ in the first buffer
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83 final Filter kwFilter2 = createFilter(Filter.Direction.ToRepo);
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84 out = new ByteArrayChannel();
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85 out.write(kwFilter2.filter(ByteBuffer.wrap("1\n$".getBytes())));
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86 out.write(kwFilter2.filter(ByteBuffer.wrap("Id:whatever continues here$\n3\n".getBytes())));
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87 Assert.assertEquals("1\n$Id$\n3\n", new String(out.toArray()));
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88 }
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89
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90 /**
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91 * what if input contains smth similar to keyword but unless the second part of the buffer
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92 * comes in, it's impossible to tell
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93 */
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94 @Test
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95 public void testIncompleteKeyword() throws Exception {
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96 initRepo();
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97 final byte[] in1 = "1\n$Id:whatever".getBytes();
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98 final byte[] in2 = " id doesn't close here\n3\n".getBytes();
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99 ByteArrayChannel out = new ByteArrayChannel();
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100 final Filter kwFilter = createFilter(Filter.Direction.ToRepo);
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101 out.write(kwFilter.filter(ByteBuffer.wrap(in1)));
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102 out.write(kwFilter.filter(ByteBuffer.wrap(in2)));
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103 byte[] expected = new byte[in1.length + in2.length];
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104 System.arraycopy(in1, 0, expected, 0, in1.length);
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105 System.arraycopy(in2, 0, expected, in1.length, in2.length);
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106 Assert.assertEquals(new String(expected), new String(out.toArray()));
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107 }
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108
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109 @Test
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110 public void testIncompleteKeywordAtEOF() throws Exception {
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111 initRepo();
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112 final byte[] in = "1\n$Id:whatever\n".getBytes();
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113 final Filter kwFilter = createFilter(Filter.Direction.ToRepo);
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114 ByteBuffer outBuf = kwFilter.filter(ByteBuffer.wrap(in));
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115 byte[] out = new byte[outBuf.remaining()];
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116 outBuf.get(out);
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117 Assert.assertEquals(new String(in), new String(out));
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118 //
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119 // incomplete $kw is stripped of in case of EOF
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120 final Filter kwFilter2 = createFilter(Filter.Direction.ToRepo);
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121 outBuf = kwFilter2.filter(ByteBuffer.wrap("1\n$Id:whatever".getBytes()));
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122 out = new byte[outBuf.remaining()];
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123 outBuf.get(out);
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124 Assert.assertEquals("1\n", new String(out));
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125 }
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126
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127 private Filter createFilter(Direction dir) {
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128 final KeywordFilter.Factory kwFactory = new KeywordFilter.Factory();
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129 kwFactory.initialize(repo);
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130 return kwFactory.create(Path.create("a/b"), new Filter.Options(dir));
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131 }
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132
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133 private HgRepository initRepo() throws Exception {
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134 final File repoLoc = RepoUtils.initEmptyTempRepo("test-kw-filter");
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135 final File hgrc = new File(repoLoc, HgRepositoryFiles.RepoConfig.getPath());
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136 RepoUtils.createFile(hgrc, "[extensions]\nkeyword=\n\n[keyword]\n**.*=\n");
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137 repo = new HgLookup().detect(repoLoc);
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138 return repo;
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139 }
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140 }