1 | #!/bin/sh
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2 | # Copyright 2008 by Denys Vlasenko
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3 | # Licensed under GPLv2, see file LICENSE in this source tree.
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4 |
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5 | . ./testing.sh
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6 |
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7 | # testing "test name" "commands" "expected result" "file input" "stdin"
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8 |
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9 | # diff outputs date/time in the header, which should not be analysed
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10 | # NB: sed has tab character in s command!
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11 | TRIM_TAB="sed 's/ .*//'"
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12 |
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13 | testing "diff of stdin" \
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14 | "diff -u - input | $TRIM_TAB" \
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15 | "\
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16 | --- -
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17 | +++ input
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18 | @@ -1 +1,3 @@
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19 | +qwe
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20 | asd
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21 | +zxc
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22 | " \
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23 | "qwe\nasd\nzxc\n" \
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24 | "asd\n"
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25 |
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26 | testing "diff of stdin, no newline in the file" \
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27 | "diff -u - input | $TRIM_TAB" \
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28 | "\
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29 | --- -
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30 | +++ input
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31 | @@ -1 +1,3 @@
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32 | +qwe
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33 | asd
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34 | +zxc
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35 | \\ No newline at end of file
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36 | " \
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37 | "qwe\nasd\nzxc" \
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38 | "asd\n"
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39 |
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40 | # we also test that stdin is in fact NOT read
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41 | testing "diff of stdin, twice" \
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42 | 'diff - -; echo $?; wc -c' \
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43 | "0\n5\n" \
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44 | "" \
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45 | "stdin"
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46 |
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47 | testing "diff of empty file against stdin" \
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48 | "diff -u - input | $TRIM_TAB" \
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49 | "\
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50 | --- -
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51 | +++ input
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52 | @@ -1 +0,0 @@
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53 | -a
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54 | " \
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55 | "" \
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56 | "a\n"
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57 |
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58 | testing "diff of empty file against nonempty one" \
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59 | "diff -u - input | $TRIM_TAB" \
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60 | "\
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61 | --- -
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62 | +++ input
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63 | @@ -0,0 +1 @@
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64 | +a
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65 | " \
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66 | "a\n" \
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67 | ""
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68 |
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69 | testing "diff -b treats EOF as whitespace" \
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70 | 'diff -ub - input; echo $?' \
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71 | "0\n" \
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72 | "abc" \
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73 | "abc "
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74 |
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75 | testing "diff -b treats all spaces as equal" \
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76 | 'diff -ub - input; echo $?' \
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77 | "0\n" \
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78 | "a \t c\n" \
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79 | "a\t \tc\n"
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80 |
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81 | testing "diff -B ignores changes whose lines are all blank" \
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82 | 'diff -uB - input; echo $?' \
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83 | "0\n" \
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84 | "a\n" \
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85 | "\na\n\n"
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86 |
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87 | testing "diff -B does not ignore changes whose lines are not all blank" \
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88 | "diff -uB - input | $TRIM_TAB" \
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89 | "\
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90 | --- -
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91 | +++ input
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92 | @@ -1,3 +1 @@
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93 | -
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94 | -b
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95 | -
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96 | +a
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97 | " \
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98 | "a\n" \
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99 | "\nb\n\n"
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100 |
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101 | testing "diff -B ignores blank single line change" \
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102 | 'diff -qB - input; echo $?' \
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103 | "0\n" \
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104 | "\n1\n" \
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105 | "1\n"
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106 |
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107 | testing "diff -B does not ignore non-blank single line change" \
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108 | 'diff -qB - input; echo $?' \
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109 | "Files - and input differ\n1\n" \
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110 | "0\n" \
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111 | "1\n"
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112 |
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113 | testing "diff always takes context from old file" \
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114 | "diff -ub - input | $TRIM_TAB" \
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115 | "\
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116 | --- -
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117 | +++ input
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118 | @@ -1 +1,3 @@
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119 | +abc
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120 | a c
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121 | +def
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122 | " \
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123 | "abc\na c\ndef\n" \
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124 | "a c\n"
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125 |
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126 | # testing "test name" "commands" "expected result" "file input" "stdin"
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127 |
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128 | # clean up
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129 | rm -rf diff1 diff2
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130 |
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131 | mkdir diff1 diff2 diff2/subdir
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132 | echo qwe >diff1/-
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133 | echo asd >diff2/subdir/-
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134 | optional FEATURE_DIFF_DIR
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135 | testing "diff diff1 diff2/subdir" \
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136 | "diff -ur diff1 diff2/subdir | $TRIM_TAB" \
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137 | "\
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138 | --- diff1/-
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139 | +++ diff2/subdir/-
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140 | @@ -1 +1 @@
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141 | -qwe
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142 | +asd
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143 | " \
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144 | "" ""
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145 | SKIP=
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146 |
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147 | # using directory structure from prev test...
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148 | optional FEATURE_DIFF_DIR
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149 | testing "diff dir dir2/file/-" \
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150 | "diff -ur diff1 diff2/subdir/- | $TRIM_TAB" \
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151 | "\
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152 | --- diff1/-
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153 | +++ diff2/subdir/-
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154 | @@ -1 +1 @@
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155 | -qwe
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156 | +asd
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157 | " \
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158 | "" ""
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159 | SKIP=
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160 |
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161 | # using directory structure from prev test...
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162 | mkdir diff1/test
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163 | mkfifo diff2/subdir/test
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164 | optional FEATURE_DIFF_DIR
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165 | testing "diff of dir and fifo" \
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166 | "diff -ur diff1 diff2/subdir | $TRIM_TAB" \
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167 | "\
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168 | --- diff1/-
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169 | +++ diff2/subdir/-
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170 | @@ -1 +1 @@
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171 | -qwe
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172 | +asd
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173 | Only in diff2/subdir: test
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174 | " \
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175 | "" ""
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176 | SKIP=
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177 |
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178 | # using directory structure from prev test...
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179 | rmdir diff1/test
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180 | echo >diff1/test
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181 | optional FEATURE_DIFF_DIR
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182 | testing "diff of file and fifo" \
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183 | "diff -ur diff1 diff2/subdir | $TRIM_TAB" \
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184 | "\
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185 | --- diff1/-
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186 | +++ diff2/subdir/-
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187 | @@ -1 +1 @@
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188 | -qwe
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189 | +asd
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190 | File diff2/subdir/test is not a regular file or directory and was skipped
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191 | " \
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192 | "" ""
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193 | SKIP=
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194 |
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195 | # using directory structure from prev test...
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196 | mkfifo diff1/test2
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197 | optional FEATURE_DIFF_DIR
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198 | testing "diff -rN does not read non-regular files" \
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199 | "diff -urN diff1 diff2/subdir | $TRIM_TAB" \
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200 | "\
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201 | --- diff1/-
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202 | +++ diff2/subdir/-
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203 | @@ -1 +1 @@
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204 | -qwe
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205 | +asd
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206 | File diff2/subdir/test is not a regular file or directory and was skipped
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207 | File diff1/test2 is not a regular file or directory and was skipped
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208 | " \
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209 | "" ""
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210 | SKIP=
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211 |
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212 | # clean up
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213 | rm -rf diff1 diff2
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214 |
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215 | # NOT using directory structure from prev test...
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216 | mkdir diff1 diff2
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217 | echo qwe >diff1/-
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218 | echo rty >diff2/-
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219 | optional FEATURE_DIFF_DIR
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220 | testing "diff diff1 diff2/" \
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221 | "diff -ur diff1 diff2/ | $TRIM_TAB; diff -ur .///diff1 diff2//// | $TRIM_TAB" \
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222 | "\
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223 | --- diff1/-
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224 | +++ diff2/-
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225 | @@ -1 +1 @@
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226 | -qwe
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227 | +rty
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228 | --- .///diff1/-
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229 | +++ diff2////-
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230 | @@ -1 +1 @@
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231 | -qwe
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232 | +rty
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233 | " \
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234 | "" ""
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235 | SKIP=
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236 |
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237 | # clean up
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238 | rm -rf diff1 diff2
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239 |
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240 | exit $FAILCOUNT
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