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annotate test/org/tmatesoft/hg/test/TestNewlineFilter.java @ 352:7b34d24b8f4d

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Tests for newline filter (eol extension) functionality
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Wed, 30 Nov 2011 05:11:07 +0100
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children 0f3687e79f5a
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352
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1 /*
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2 * Copyright (c) 2011 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 java.io.File;
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20 import java.io.FileInputStream;
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21 import java.io.FileOutputStream;
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22 import java.nio.ByteBuffer;
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23
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24 import org.junit.Assert;
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25 import org.junit.Test;
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26 import org.tmatesoft.hg.internal.NewlineFilter;
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27
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28 /**
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29 *
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30 * @author Artem Tikhomirov
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31 * @author TMate Software Ltd.
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32 */
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33 public class TestNewlineFilter {
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34
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35 public static void main(String[] args) throws Exception {
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36 FileInputStream fis = new FileInputStream(new File("/temp/design.lf.txt"));
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37 FileOutputStream fos = new FileOutputStream(new File("/temp/design.newline.out"));
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38 ByteBuffer b = ByteBuffer.allocate(12);
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39 NewlineFilter nlFilter = NewlineFilter.createNix2Win(true);
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40 while (fis.getChannel().read(b) != -1) {
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41 b.flip(); // get ready to be read
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42 ByteBuffer f = nlFilter.filter(b);
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43 fos.getChannel().write(f); // XXX in fact, f may not be fully consumed
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44 if (b.hasRemaining()) {
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45 b.compact();
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46 } else {
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47 b.clear();
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48 }
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49 }
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50 fis.close();
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51 fos.flush();
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52 fos.close();
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53 }
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54
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55 // pure
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56 private final String crlf_1 = "\r\nA\r\nBC\r\n\r\nDEF\r\n";
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57 private final String lf_1 = "\nA\nBC\n\nDEF\n";
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58 // mixed
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59 private final String crlf_2 = "\r\nA\r\nBC\n\nDEF\r\n";
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60 private final String lf_2 = "\nA\nBC\r\n\r\nDEF\n";
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61
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62 @Test
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63 public void testPure_CRLF_2_LF() {
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64 final byte[] input = crlf_1.getBytes();
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65 byte[] result = apply(NewlineFilter.createWin2Nix(false), input);
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66 Assert.assertArrayEquals(lf_1.getBytes(), result);
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67 }
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68
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69 @Test
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70 public void testPure_LF_2_CRLF() {
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71 final byte[] input = lf_1.getBytes();
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72 byte[] result = apply(NewlineFilter.createNix2Win(false), input);
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73 Assert.assertArrayEquals(crlf_1.getBytes(), result);
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74 }
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75
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76 @Test
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77 public void testRelaxedMixed_CRLF_2_LF() {
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78 // mixed \n and \r\n to uniform \n
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79 byte[] result = apply(NewlineFilter.createWin2Nix(true), crlf_2.getBytes());
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80 Assert.assertArrayEquals(lf_1.getBytes(), result);
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81 }
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82
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83 @Test
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84 public void testRelaxedMixed_LF_2_CRLF() {
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85 // mixed \n and \r\n to uniform \r\n
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86 byte[] result = apply(NewlineFilter.createNix2Win(true), lf_2.getBytes());
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87 Assert.assertArrayEquals(crlf_1.getBytes(), result);
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88 }
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89
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90 @Test
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91 public void testStrictMixed_CRLF_2_LF() {
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92 try {
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93 byte[] result = apply(NewlineFilter.createWin2Nix(false), crlf_2.getBytes());
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94 Assert.fail("Shall fail when eol.only-consistent is true:" + new String(result));
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95 } catch (RuntimeException ex) {
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96 // fine
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97 }
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98 }
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99
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100 @Test
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101 public void testStrictMixed_LF_2_CRLF() {
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102 try {
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103 byte[] result = apply(NewlineFilter.createNix2Win(false), lf_2.getBytes());
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104 Assert.fail("Shall fail when eol.only-consistent is true:" + new String(result));
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105 } catch (RuntimeException ex) {
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106 // fine
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107 }
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108 }
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109
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110
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111 @Test
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112 public void testNoConversionNeeded_LF_2_LF() {
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113 final byte[] input = lf_1.getBytes();
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114 Assert.assertTrue("sanity", indexOf(input, '\r') == -1);
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115 byte[] result = apply(NewlineFilter.createWin2Nix(false), input);
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116 Assert.assertArrayEquals(input, result);
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117 }
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118
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119 @Test
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120 public void testNoConversionNeeded_CRLF_2_CRLF() {
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121 final byte[] input = crlf_1.getBytes();
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122 byte[] result = apply(NewlineFilter.createNix2Win(false), input);
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123 Assert.assertArrayEquals(input, result);
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124 }
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125
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126 private static byte[] apply(NewlineFilter nlFilter, byte[] input) {
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127 ByteBuffer result = nlFilter.filter(ByteBuffer.wrap(input));
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128 byte[] res = new byte[result.remaining()];
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129 result.get(res);
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130 return res;
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131 }
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132
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133 private static int indexOf(byte[] arr, int val) {
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134 for (int i = 0; i < arr.length; i++) {
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135 if (arr[i] == val) {
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136 return i;
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137 }
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138 }
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139 return -1;
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140 }
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141 }