]>
Commit | Line | Data |
---|---|---|
c74c7203 JN |
1 | # Library of functions shared by all tests scripts, included by |
2 | # test-lib.sh. | |
12a29b1a TR |
3 | # |
4 | # Copyright (c) 2005 Junio C Hamano | |
5 | # | |
6 | # This program is free software: you can redistribute it and/or modify | |
7 | # it under the terms of the GNU General Public License as published by | |
8 | # the Free Software Foundation, either version 2 of the License, or | |
9 | # (at your option) any later version. | |
10 | # | |
11 | # This program is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | # GNU General Public License for more details. | |
15 | # | |
16 | # You should have received a copy of the GNU General Public License | |
17 | # along with this program. If not, see http://www.gnu.org/licenses/ . | |
18 | ||
19 | # The semantics of the editor variables are that of invoking | |
20 | # sh -c "$EDITOR \"$@\"" files ... | |
21 | # | |
22 | # If our trash directory contains shell metacharacters, they will be | |
23 | # interpreted if we just set $EDITOR directly, so do a little dance with | |
24 | # environment variables to work around this. | |
25 | # | |
26 | # In particular, quoting isn't enough, as the path may contain the same quote | |
27 | # that we're using. | |
28 | test_set_editor () { | |
29 | FAKE_EDITOR="$1" | |
30 | export FAKE_EDITOR | |
31 | EDITOR='"$FAKE_EDITOR"' | |
32 | export EDITOR | |
33 | } | |
34 | ||
5d9fc888 TG |
35 | test_set_index_version () { |
36 | GIT_INDEX_VERSION="$1" | |
37 | export GIT_INDEX_VERSION | |
38 | } | |
39 | ||
12a29b1a TR |
40 | test_decode_color () { |
41 | awk ' | |
42 | function name(n) { | |
43 | if (n == 0) return "RESET"; | |
44 | if (n == 1) return "BOLD"; | |
45 | if (n == 30) return "BLACK"; | |
46 | if (n == 31) return "RED"; | |
47 | if (n == 32) return "GREEN"; | |
48 | if (n == 33) return "YELLOW"; | |
49 | if (n == 34) return "BLUE"; | |
50 | if (n == 35) return "MAGENTA"; | |
51 | if (n == 36) return "CYAN"; | |
52 | if (n == 37) return "WHITE"; | |
53 | if (n == 40) return "BLACK"; | |
54 | if (n == 41) return "BRED"; | |
55 | if (n == 42) return "BGREEN"; | |
56 | if (n == 43) return "BYELLOW"; | |
57 | if (n == 44) return "BBLUE"; | |
58 | if (n == 45) return "BMAGENTA"; | |
59 | if (n == 46) return "BCYAN"; | |
60 | if (n == 47) return "BWHITE"; | |
61 | } | |
62 | { | |
63 | while (match($0, /\033\[[0-9;]*m/) != 0) { | |
64 | printf "%s<", substr($0, 1, RSTART-1); | |
65 | codes = substr($0, RSTART+2, RLENGTH-3); | |
66 | if (length(codes) == 0) | |
67 | printf "%s", name(0) | |
68 | else { | |
69 | n = split(codes, ary, ";"); | |
70 | sep = ""; | |
71 | for (i = 1; i <= n; i++) { | |
72 | printf "%s%s", sep, name(ary[i]); | |
73 | sep = ";" | |
74 | } | |
75 | } | |
76 | printf ">"; | |
77 | $0 = substr($0, RSTART + RLENGTH, length($0) - RSTART - RLENGTH + 1); | |
78 | } | |
79 | ||
80 | } | |
81 | ' | |
82 | } | |
83 | ||
84 | nul_to_q () { | |
94221d22 | 85 | perl -pe 'y/\000/Q/' |
12a29b1a TR |
86 | } |
87 | ||
88 | q_to_nul () { | |
94221d22 | 89 | perl -pe 'y/Q/\000/' |
12a29b1a TR |
90 | } |
91 | ||
92 | q_to_cr () { | |
93 | tr Q '\015' | |
94 | } | |
95 | ||
96 | q_to_tab () { | |
97 | tr Q '\011' | |
98 | } | |
99 | ||
250b3c6c JH |
100 | qz_to_tab_space () { |
101 | tr QZ '\011\040' | |
12a29b1a TR |
102 | } |
103 | ||
104 | append_cr () { | |
105 | sed -e 's/$/Q/' | tr Q '\015' | |
106 | } | |
107 | ||
108 | remove_cr () { | |
109 | tr '\015' Q | sed -e 's/Q$//' | |
110 | } | |
111 | ||
112 | # In some bourne shell implementations, the "unset" builtin returns | |
113 | # nonzero status when a variable to be unset was not set in the first | |
114 | # place. | |
115 | # | |
116 | # Use sane_unset when that should not be considered an error. | |
117 | ||
118 | sane_unset () { | |
119 | unset "$@" | |
120 | return 0 | |
121 | } | |
122 | ||
123 | test_tick () { | |
124 | if test -z "${test_tick+set}" | |
125 | then | |
126 | test_tick=1112911993 | |
127 | else | |
128 | test_tick=$(($test_tick + 60)) | |
129 | fi | |
130 | GIT_COMMITTER_DATE="$test_tick -0700" | |
131 | GIT_AUTHOR_DATE="$test_tick -0700" | |
132 | export GIT_COMMITTER_DATE GIT_AUTHOR_DATE | |
133 | } | |
134 | ||
135 | # Stop execution and start a shell. This is useful for debugging tests and | |
136 | # only makes sense together with "-v". | |
137 | # | |
138 | # Be sure to remove all invocations of this command before submitting. | |
139 | ||
140 | test_pause () { | |
141 | if test "$verbose" = t; then | |
142 | "$SHELL_PATH" <&6 >&3 2>&4 | |
143 | else | |
144 | error >&5 "test_pause requires --verbose" | |
145 | fi | |
146 | } | |
147 | ||
4c994194 | 148 | # Call test_commit with the arguments "<message> [<file> [<contents> [<tag>]]]" |
12a29b1a TR |
149 | # |
150 | # This will commit a file with the given contents and the given commit | |
4c994194 | 151 | # message, and tag the resulting commit with the given tag name. |
12a29b1a | 152 | # |
4c994194 | 153 | # <file>, <contents>, and <tag> all default to <message>. |
12a29b1a TR |
154 | |
155 | test_commit () { | |
9a0231b3 | 156 | notick= && |
5ed75e2a MV |
157 | signoff= && |
158 | while test $# != 0 | |
159 | do | |
160 | case "$1" in | |
161 | --notick) | |
162 | notick=yes | |
163 | ;; | |
164 | --signoff) | |
165 | signoff="$1" | |
166 | ;; | |
167 | *) | |
168 | break | |
169 | ;; | |
170 | esac | |
9a0231b3 | 171 | shift |
5ed75e2a | 172 | done && |
9a0231b3 | 173 | file=${2:-"$1.t"} && |
12a29b1a TR |
174 | echo "${3-$1}" > "$file" && |
175 | git add "$file" && | |
9a0231b3 JH |
176 | if test -z "$notick" |
177 | then | |
178 | test_tick | |
179 | fi && | |
5ed75e2a | 180 | git commit $signoff -m "$1" && |
4c994194 | 181 | git tag "${4:-$1}" |
12a29b1a TR |
182 | } |
183 | ||
184 | # Call test_merge with the arguments "<message> <commit>", where <commit> | |
185 | # can be a tag pointing to the commit-to-merge. | |
186 | ||
187 | test_merge () { | |
188 | test_tick && | |
189 | git merge -m "$1" "$2" && | |
190 | git tag "$1" | |
191 | } | |
192 | ||
193 | # This function helps systems where core.filemode=false is set. | |
194 | # Use it instead of plain 'chmod +x' to set or unset the executable bit | |
195 | # of a file in the working directory and add it to the index. | |
196 | ||
197 | test_chmod () { | |
198 | chmod "$@" && | |
199 | git update-index --add "--chmod=$@" | |
200 | } | |
201 | ||
202 | # Unset a configuration variable, but don't fail if it doesn't exist. | |
203 | test_unconfig () { | |
204 | git config --unset-all "$@" | |
205 | config_status=$? | |
206 | case "$config_status" in | |
207 | 5) # ok, nothing to unset | |
208 | config_status=0 | |
209 | ;; | |
210 | esac | |
211 | return $config_status | |
212 | } | |
213 | ||
214 | # Set git config, automatically unsetting it after the test is over. | |
215 | test_config () { | |
216 | test_when_finished "test_unconfig '$1'" && | |
217 | git config "$@" | |
218 | } | |
219 | ||
220 | test_config_global () { | |
221 | test_when_finished "test_unconfig --global '$1'" && | |
222 | git config --global "$@" | |
223 | } | |
224 | ||
225 | write_script () { | |
226 | { | |
227 | echo "#!${2-"$SHELL_PATH"}" && | |
228 | cat | |
229 | } >"$1" && | |
230 | chmod +x "$1" | |
231 | } | |
232 | ||
233 | # Use test_set_prereq to tell that a particular prerequisite is available. | |
234 | # The prerequisite can later be checked for in two ways: | |
235 | # | |
236 | # - Explicitly using test_have_prereq. | |
237 | # | |
238 | # - Implicitly by specifying the prerequisite tag in the calls to | |
239 | # test_expect_{success,failure,code}. | |
240 | # | |
241 | # The single parameter is the prerequisite tag (a simple word, in all | |
242 | # capital letters by convention). | |
243 | ||
244 | test_set_prereq () { | |
f3cfc3b2 | 245 | satisfied_prereq="$satisfied_prereq$1 " |
12a29b1a | 246 | } |
f3cfc3b2 | 247 | satisfied_prereq=" " |
04083f27 JH |
248 | lazily_testable_prereq= lazily_tested_prereq= |
249 | ||
250 | # Usage: test_lazy_prereq PREREQ 'script' | |
251 | test_lazy_prereq () { | |
252 | lazily_testable_prereq="$lazily_testable_prereq$1 " | |
253 | eval test_prereq_lazily_$1=\$2 | |
254 | } | |
255 | ||
256 | test_run_lazy_prereq_ () { | |
257 | script=' | |
258 | mkdir -p "$TRASH_DIRECTORY/prereq-test-dir" && | |
259 | ( | |
260 | cd "$TRASH_DIRECTORY/prereq-test-dir" &&'"$2"' | |
261 | )' | |
262 | say >&3 "checking prerequisite: $1" | |
263 | say >&3 "$script" | |
264 | test_eval_ "$script" | |
265 | eval_ret=$? | |
266 | rm -rf "$TRASH_DIRECTORY/prereq-test-dir" | |
267 | if test "$eval_ret" = 0; then | |
268 | say >&3 "prerequisite $1 ok" | |
269 | else | |
270 | say >&3 "prerequisite $1 not satisfied" | |
271 | fi | |
272 | return $eval_ret | |
273 | } | |
12a29b1a TR |
274 | |
275 | test_have_prereq () { | |
276 | # prerequisites can be concatenated with ',' | |
277 | save_IFS=$IFS | |
278 | IFS=, | |
279 | set -- $* | |
280 | IFS=$save_IFS | |
281 | ||
282 | total_prereq=0 | |
283 | ok_prereq=0 | |
284 | missing_prereq= | |
285 | ||
286 | for prerequisite | |
287 | do | |
bdccd3c1 JK |
288 | case "$prerequisite" in |
289 | !*) | |
290 | negative_prereq=t | |
291 | prerequisite=${prerequisite#!} | |
292 | ;; | |
293 | *) | |
294 | negative_prereq= | |
295 | esac | |
296 | ||
04083f27 JH |
297 | case " $lazily_tested_prereq " in |
298 | *" $prerequisite "*) | |
299 | ;; | |
300 | *) | |
301 | case " $lazily_testable_prereq " in | |
302 | *" $prerequisite "*) | |
303 | eval "script=\$test_prereq_lazily_$prerequisite" && | |
304 | if test_run_lazy_prereq_ "$prerequisite" "$script" | |
305 | then | |
306 | test_set_prereq $prerequisite | |
307 | fi | |
308 | lazily_tested_prereq="$lazily_tested_prereq$prerequisite " | |
309 | esac | |
310 | ;; | |
311 | esac | |
312 | ||
12a29b1a | 313 | total_prereq=$(($total_prereq + 1)) |
f3cfc3b2 | 314 | case "$satisfied_prereq" in |
12a29b1a | 315 | *" $prerequisite "*) |
bdccd3c1 JK |
316 | satisfied_this_prereq=t |
317 | ;; | |
318 | *) | |
319 | satisfied_this_prereq= | |
320 | esac | |
321 | ||
322 | case "$satisfied_this_prereq,$negative_prereq" in | |
323 | t,|,t) | |
12a29b1a TR |
324 | ok_prereq=$(($ok_prereq + 1)) |
325 | ;; | |
326 | *) | |
bdccd3c1 JK |
327 | # Keep a list of missing prerequisites; restore |
328 | # the negative marker if necessary. | |
329 | prerequisite=${negative_prereq:+!}$prerequisite | |
12a29b1a TR |
330 | if test -z "$missing_prereq" |
331 | then | |
332 | missing_prereq=$prerequisite | |
333 | else | |
334 | missing_prereq="$prerequisite,$missing_prereq" | |
335 | fi | |
336 | esac | |
337 | done | |
338 | ||
339 | test $total_prereq = $ok_prereq | |
340 | } | |
341 | ||
342 | test_declared_prereq () { | |
343 | case ",$test_prereq," in | |
344 | *,$1,*) | |
345 | return 0 | |
346 | ;; | |
347 | esac | |
348 | return 1 | |
349 | } | |
350 | ||
351 | test_expect_failure () { | |
ae75342c | 352 | test_start_ |
12a29b1a TR |
353 | test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq= |
354 | test "$#" = 2 || | |
355 | error "bug in the test script: not 2 or 3 parameters to test-expect-failure" | |
356 | export test_prereq | |
357 | if ! test_skip "$@" | |
358 | then | |
359 | say >&3 "checking known breakage: $2" | |
360 | if test_run_ "$2" expecting_failure | |
361 | then | |
362 | test_known_broken_ok_ "$1" | |
363 | else | |
364 | test_known_broken_failure_ "$1" | |
365 | fi | |
366 | fi | |
ae75342c | 367 | test_finish_ |
12a29b1a TR |
368 | } |
369 | ||
370 | test_expect_success () { | |
ae75342c | 371 | test_start_ |
12a29b1a TR |
372 | test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq= |
373 | test "$#" = 2 || | |
374 | error "bug in the test script: not 2 or 3 parameters to test-expect-success" | |
375 | export test_prereq | |
376 | if ! test_skip "$@" | |
377 | then | |
378 | say >&3 "expecting success: $2" | |
379 | if test_run_ "$2" | |
380 | then | |
381 | test_ok_ "$1" | |
382 | else | |
383 | test_failure_ "$@" | |
384 | fi | |
385 | fi | |
ae75342c | 386 | test_finish_ |
12a29b1a TR |
387 | } |
388 | ||
389 | # test_external runs external test scripts that provide continuous | |
390 | # test output about their progress, and succeeds/fails on | |
391 | # zero/non-zero exit code. It outputs the test output on stdout even | |
392 | # in non-verbose mode, and announces the external script with "# run | |
393 | # <n>: ..." before running it. When providing relative paths, keep in | |
394 | # mind that all scripts run in "trash directory". | |
395 | # Usage: test_external description command arguments... | |
396 | # Example: test_external 'Perl API' perl ../path/to/test.pl | |
397 | test_external () { | |
398 | test "$#" = 4 && { test_prereq=$1; shift; } || test_prereq= | |
399 | test "$#" = 3 || | |
400 | error >&5 "bug in the test script: not 3 or 4 parameters to test_external" | |
401 | descr="$1" | |
402 | shift | |
403 | export test_prereq | |
404 | if ! test_skip "$descr" "$@" | |
405 | then | |
406 | # Announce the script to reduce confusion about the | |
407 | # test output that follows. | |
408 | say_color "" "# run $test_count: $descr ($*)" | |
409 | # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG | |
410 | # to be able to use them in script | |
411 | export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG | |
412 | # Run command; redirect its stderr to &4 as in | |
413 | # test_run_, but keep its stdout on our stdout even in | |
414 | # non-verbose mode. | |
415 | "$@" 2>&4 | |
9e8f8dea | 416 | if test "$?" = 0 |
12a29b1a TR |
417 | then |
418 | if test $test_external_has_tap -eq 0; then | |
419 | test_ok_ "$descr" | |
420 | else | |
421 | say_color "" "# test_external test $descr was ok" | |
422 | test_success=$(($test_success + 1)) | |
423 | fi | |
424 | else | |
425 | if test $test_external_has_tap -eq 0; then | |
426 | test_failure_ "$descr" "$@" | |
427 | else | |
428 | say_color error "# test_external test $descr failed: $@" | |
429 | test_failure=$(($test_failure + 1)) | |
430 | fi | |
431 | fi | |
432 | fi | |
433 | } | |
434 | ||
435 | # Like test_external, but in addition tests that the command generated | |
436 | # no output on stderr. | |
437 | test_external_without_stderr () { | |
438 | # The temporary file has no (and must have no) security | |
439 | # implications. | |
440 | tmp=${TMPDIR:-/tmp} | |
441 | stderr="$tmp/git-external-stderr.$$.tmp" | |
442 | test_external "$@" 4> "$stderr" | |
9e8f8dea | 443 | test -f "$stderr" || error "Internal error: $stderr disappeared." |
12a29b1a TR |
444 | descr="no stderr: $1" |
445 | shift | |
446 | say >&3 "# expecting no stderr from previous command" | |
9e8f8dea DA |
447 | if test ! -s "$stderr" |
448 | then | |
12a29b1a TR |
449 | rm "$stderr" |
450 | ||
451 | if test $test_external_has_tap -eq 0; then | |
452 | test_ok_ "$descr" | |
453 | else | |
454 | say_color "" "# test_external_without_stderr test $descr was ok" | |
455 | test_success=$(($test_success + 1)) | |
456 | fi | |
457 | else | |
9e8f8dea DA |
458 | if test "$verbose" = t |
459 | then | |
460 | output=$(echo; echo "# Stderr is:"; cat "$stderr") | |
12a29b1a TR |
461 | else |
462 | output= | |
463 | fi | |
464 | # rm first in case test_failure exits. | |
465 | rm "$stderr" | |
466 | if test $test_external_has_tap -eq 0; then | |
467 | test_failure_ "$descr" "$@" "$output" | |
468 | else | |
469 | say_color error "# test_external_without_stderr test $descr failed: $@: $output" | |
470 | test_failure=$(($test_failure + 1)) | |
471 | fi | |
472 | fi | |
473 | } | |
474 | ||
475 | # debugging-friendly alternatives to "test [-f|-d|-e]" | |
476 | # The commands test the existence or non-existence of $1. $2 can be | |
477 | # given to provide a more precise diagnosis. | |
478 | test_path_is_file () { | |
9e8f8dea | 479 | if ! test -f "$1" |
12a29b1a TR |
480 | then |
481 | echo "File $1 doesn't exist. $*" | |
482 | false | |
483 | fi | |
484 | } | |
485 | ||
486 | test_path_is_dir () { | |
9e8f8dea | 487 | if ! test -d "$1" |
12a29b1a TR |
488 | then |
489 | echo "Directory $1 doesn't exist. $*" | |
490 | false | |
491 | fi | |
492 | } | |
493 | ||
0be7d9b7 JL |
494 | # Check if the directory exists and is empty as expected, barf otherwise. |
495 | test_dir_is_empty () { | |
496 | test_path_is_dir "$1" && | |
497 | if test -n "$(ls -a1 "$1" | egrep -v '^\.\.?$')" | |
498 | then | |
499 | echo "Directory '$1' is not empty, it contains:" | |
500 | ls -la "$1" | |
501 | return 1 | |
502 | fi | |
503 | } | |
504 | ||
12a29b1a | 505 | test_path_is_missing () { |
9e8f8dea | 506 | if test -e "$1" |
12a29b1a TR |
507 | then |
508 | echo "Path exists:" | |
509 | ls -ld "$1" | |
9e8f8dea DA |
510 | if test $# -ge 1 |
511 | then | |
12a29b1a TR |
512 | echo "$*" |
513 | fi | |
514 | false | |
515 | fi | |
516 | } | |
517 | ||
518 | # test_line_count checks that a file has the number of lines it | |
519 | # ought to. For example: | |
520 | # | |
521 | # test_expect_success 'produce exactly one line of output' ' | |
522 | # do something >output && | |
523 | # test_line_count = 1 output | |
524 | # ' | |
525 | # | |
526 | # is like "test $(wc -l <output) = 1" except that it passes the | |
527 | # output through when the number of lines is wrong. | |
528 | ||
529 | test_line_count () { | |
530 | if test $# != 3 | |
531 | then | |
532 | error "bug in the test script: not 3 parameters to test_line_count" | |
533 | elif ! test $(wc -l <"$3") "$1" "$2" | |
534 | then | |
535 | echo "test_line_count: line count for $3 !$1 $2" | |
536 | cat "$3" | |
537 | return 1 | |
538 | fi | |
539 | } | |
540 | ||
541 | # This is not among top-level (test_expect_success | test_expect_failure) | |
542 | # but is a prefix that can be used in the test script, like: | |
543 | # | |
544 | # test_expect_success 'complain and die' ' | |
545 | # do something && | |
546 | # do something else && | |
547 | # test_must_fail git checkout ../outerspace | |
548 | # ' | |
549 | # | |
550 | # Writing this as "! git checkout ../outerspace" is wrong, because | |
551 | # the failure could be due to a segv. We want a controlled failure. | |
552 | ||
553 | test_must_fail () { | |
554 | "$@" | |
555 | exit_code=$? | |
556 | if test $exit_code = 0; then | |
557 | echo >&2 "test_must_fail: command succeeded: $*" | |
558 | return 1 | |
0cfe6fd2 | 559 | elif test $exit_code -gt 129 && test $exit_code -le 192; then |
12a29b1a TR |
560 | echo >&2 "test_must_fail: died by signal: $*" |
561 | return 1 | |
562 | elif test $exit_code = 127; then | |
563 | echo >&2 "test_must_fail: command not found: $*" | |
564 | return 1 | |
eeb69131 TR |
565 | elif test $exit_code = 126; then |
566 | echo >&2 "test_must_fail: valgrind error: $*" | |
567 | return 1 | |
12a29b1a TR |
568 | fi |
569 | return 0 | |
570 | } | |
571 | ||
572 | # Similar to test_must_fail, but tolerates success, too. This is | |
573 | # meant to be used in contexts like: | |
574 | # | |
575 | # test_expect_success 'some command works without configuration' ' | |
576 | # test_might_fail git config --unset all.configuration && | |
577 | # do something | |
578 | # ' | |
579 | # | |
580 | # Writing "git config --unset all.configuration || :" would be wrong, | |
581 | # because we want to notice if it fails due to segv. | |
582 | ||
583 | test_might_fail () { | |
584 | "$@" | |
585 | exit_code=$? | |
0cfe6fd2 | 586 | if test $exit_code -gt 129 && test $exit_code -le 192; then |
12a29b1a TR |
587 | echo >&2 "test_might_fail: died by signal: $*" |
588 | return 1 | |
589 | elif test $exit_code = 127; then | |
590 | echo >&2 "test_might_fail: command not found: $*" | |
591 | return 1 | |
592 | fi | |
593 | return 0 | |
594 | } | |
595 | ||
596 | # Similar to test_must_fail and test_might_fail, but check that a | |
597 | # given command exited with a given exit code. Meant to be used as: | |
598 | # | |
599 | # test_expect_success 'Merge with d/f conflicts' ' | |
600 | # test_expect_code 1 git merge "merge msg" B master | |
601 | # ' | |
602 | ||
603 | test_expect_code () { | |
604 | want_code=$1 | |
605 | shift | |
606 | "$@" | |
607 | exit_code=$? | |
608 | if test $exit_code = $want_code | |
609 | then | |
610 | return 0 | |
611 | fi | |
612 | ||
613 | echo >&2 "test_expect_code: command exited with $exit_code, we wanted $want_code $*" | |
614 | return 1 | |
615 | } | |
616 | ||
617 | # test_cmp is a helper function to compare actual and expected output. | |
618 | # You can use it like: | |
619 | # | |
620 | # test_expect_success 'foo works' ' | |
621 | # echo expected >expected && | |
622 | # foo >actual && | |
623 | # test_cmp expected actual | |
624 | # ' | |
625 | # | |
626 | # This could be written as either "cmp" or "diff -u", but: | |
627 | # - cmp's output is not nearly as easy to read as diff -u | |
628 | # - not all diff versions understand "-u" | |
629 | ||
630 | test_cmp() { | |
631 | $GIT_TEST_CMP "$@" | |
632 | } | |
633 | ||
b93e6e36 SK |
634 | # test_cmp_bin - helper to compare binary files |
635 | ||
636 | test_cmp_bin() { | |
637 | cmp "$@" | |
638 | } | |
639 | ||
8ad16524 JK |
640 | # Call any command "$@" but be more verbose about its |
641 | # failure. This is handy for commands like "test" which do | |
642 | # not output anything when they fail. | |
643 | verbose () { | |
644 | "$@" && return 0 | |
645 | echo >&2 "command failed: $(git rev-parse --sq-quote "$@")" | |
646 | return 1 | |
647 | } | |
648 | ||
ca8d148d JH |
649 | # Check if the file expected to be empty is indeed empty, and barfs |
650 | # otherwise. | |
651 | ||
652 | test_must_be_empty () { | |
653 | if test -s "$1" | |
654 | then | |
655 | echo "'$1' is not empty, it contains:" | |
656 | cat "$1" | |
657 | return 1 | |
658 | fi | |
659 | } | |
660 | ||
5d77298d MZ |
661 | # Tests that its two parameters refer to the same revision |
662 | test_cmp_rev () { | |
663 | git rev-parse --verify "$1" >expect.rev && | |
664 | git rev-parse --verify "$2" >actual.rev && | |
665 | test_cmp expect.rev actual.rev | |
666 | } | |
667 | ||
d17cf5f3 MK |
668 | # Print a sequence of numbers or letters in increasing order. This is |
669 | # similar to GNU seq(1), but the latter might not be available | |
670 | # everywhere (and does not do letters). It may be used like: | |
671 | # | |
9e8f8dea DA |
672 | # for i in $(test_seq 100) |
673 | # do | |
674 | # for j in $(test_seq 10 20) | |
675 | # do | |
676 | # for k in $(test_seq a z) | |
677 | # do | |
d17cf5f3 MK |
678 | # echo $i-$j-$k |
679 | # done | |
680 | # done | |
681 | # done | |
682 | ||
683 | test_seq () { | |
684 | case $# in | |
685 | 1) set 1 "$@" ;; | |
686 | 2) ;; | |
687 | *) error "bug in the test script: not 1 or 2 parameters to test_seq" ;; | |
688 | esac | |
94221d22 | 689 | perl -le 'print for $ARGV[0]..$ARGV[1]' -- "$@" |
d17cf5f3 MK |
690 | } |
691 | ||
12a29b1a TR |
692 | # This function can be used to schedule some commands to be run |
693 | # unconditionally at the end of the test to restore sanity: | |
694 | # | |
695 | # test_expect_success 'test core.capslock' ' | |
696 | # git config core.capslock true && | |
697 | # test_when_finished "git config --unset core.capslock" && | |
698 | # hello world | |
699 | # ' | |
700 | # | |
701 | # That would be roughly equivalent to | |
702 | # | |
703 | # test_expect_success 'test core.capslock' ' | |
704 | # git config core.capslock true && | |
705 | # hello world | |
706 | # git config --unset core.capslock | |
707 | # ' | |
708 | # | |
709 | # except that the greeting and config --unset must both succeed for | |
710 | # the test to pass. | |
711 | # | |
712 | # Note that under --immediate mode, no clean-up is done to help diagnose | |
713 | # what went wrong. | |
714 | ||
715 | test_when_finished () { | |
716 | test_cleanup="{ $* | |
717 | } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup" | |
718 | } | |
719 | ||
720 | # Most tests can use the created repository, but some may need to create more. | |
721 | # Usage: test_create_repo <directory> | |
722 | test_create_repo () { | |
723 | test "$#" = 1 || | |
724 | error "bug in the test script: not 1 parameter to test-create-repo" | |
725 | repo="$1" | |
726 | mkdir -p "$repo" | |
727 | ( | |
728 | cd "$repo" || error "Cannot setup test environment" | |
729 | "$GIT_EXEC_PATH/git-init" "--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 || | |
730 | error "cannot run git init -- have you built things yet?" | |
731 | mv .git/hooks .git/hooks-disabled | |
732 | ) || exit | |
733 | } | |
9ce415d9 JS |
734 | |
735 | # This function helps on symlink challenged file systems when it is not | |
736 | # important that the file system entry is a symbolic link. | |
737 | # Use test_ln_s_add instead of "ln -s x y && git add y" to add a | |
738 | # symbolic link entry y to the index. | |
739 | ||
740 | test_ln_s_add () { | |
741 | if test_have_prereq SYMLINKS | |
742 | then | |
743 | ln -s "$1" "$2" && | |
744 | git update-index --add "$2" | |
745 | else | |
746 | printf '%s' "$1" >"$2" && | |
747 | ln_s_obj=$(git hash-object -w "$2") && | |
817d03e1 JS |
748 | git update-index --add --cacheinfo 120000 $ln_s_obj "$2" && |
749 | # pick up stat info from the file | |
750 | git update-index "$2" | |
9ce415d9 JS |
751 | fi |
752 | } | |
4d715ac0 | 753 | |
ac9afcc3 MT |
754 | # This function writes out its parameters, one per line |
755 | test_write_lines () { | |
756 | printf "%s\n" "$@" | |
757 | } | |
758 | ||
a0e0ec9f JK |
759 | perl () { |
760 | command "$PERL_PATH" "$@" | |
761 | } | |
a3a9cff0 | 762 | |
83d842dc JK |
763 | # Is the value one of the various ways to spell a boolean true/false? |
764 | test_normalize_bool () { | |
765 | git -c magic.variable="$1" config --bool magic.variable 2>/dev/null | |
766 | } | |
767 | ||
768 | # Given a variable $1, normalize the value of it to one of "true", | |
769 | # "false", or "auto" and store the result to it. | |
770 | # | |
771 | # test_tristate GIT_TEST_HTTPD | |
772 | # | |
773 | # A variable set to an empty string is set to 'false'. | |
774 | # A variable set to 'false' or 'auto' keeps its value. | |
775 | # Anything else is set to 'true'. | |
776 | # An unset variable defaults to 'auto'. | |
777 | # | |
778 | # The last rule is to allow people to set the variable to an empty | |
779 | # string and export it to decline testing the particular feature | |
780 | # for versions both before and after this change. We used to treat | |
781 | # both unset and empty variable as a signal for "do not test" and | |
782 | # took any non-empty string as "please test". | |
783 | ||
784 | test_tristate () { | |
785 | if eval "test x\"\${$1+isset}\" = xisset" | |
786 | then | |
787 | # explicitly set | |
788 | eval " | |
789 | case \"\$$1\" in | |
790 | '') $1=false ;; | |
791 | auto) ;; | |
792 | *) $1=\$(test_normalize_bool \$$1 || echo true) ;; | |
793 | esac | |
794 | " | |
795 | else | |
796 | eval "$1=auto" | |
797 | fi | |
798 | } | |
799 | ||
800 | # Exit the test suite, either by skipping all remaining tests or by | |
801 | # exiting with an error. If "$1" is "auto", we then we assume we were | |
802 | # opportunistically trying to set up some tests and we skip. If it is | |
803 | # "true", then we report a failure. | |
804 | # | |
805 | # The error/skip message should be given by $2. | |
806 | # | |
807 | test_skip_or_die () { | |
808 | case "$1" in | |
809 | auto) | |
810 | skip_all=$2 | |
811 | test_done | |
812 | ;; | |
813 | true) | |
814 | error "$2" | |
815 | ;; | |
816 | *) | |
817 | error "BUG: test tristate is '$1' (real error: $2)" | |
818 | esac | |
819 | } | |
820 | ||
4d715ac0 JS |
821 | # The following mingw_* functions obey POSIX shell syntax, but are actually |
822 | # bash scripts, and are meant to be used only with bash on Windows. | |
823 | ||
824 | # A test_cmp function that treats LF and CRLF equal and avoids to fork | |
825 | # diff when possible. | |
826 | mingw_test_cmp () { | |
827 | # Read text into shell variables and compare them. If the results | |
828 | # are different, use regular diff to report the difference. | |
829 | local test_cmp_a= test_cmp_b= | |
830 | ||
831 | # When text came from stdin (one argument is '-') we must feed it | |
832 | # to diff. | |
833 | local stdin_for_diff= | |
834 | ||
835 | # Since it is difficult to detect the difference between an | |
836 | # empty input file and a failure to read the files, we go straight | |
837 | # to diff if one of the inputs is empty. | |
838 | if test -s "$1" && test -s "$2" | |
839 | then | |
840 | # regular case: both files non-empty | |
841 | mingw_read_file_strip_cr_ test_cmp_a <"$1" | |
842 | mingw_read_file_strip_cr_ test_cmp_b <"$2" | |
843 | elif test -s "$1" && test "$2" = - | |
844 | then | |
845 | # read 2nd file from stdin | |
846 | mingw_read_file_strip_cr_ test_cmp_a <"$1" | |
847 | mingw_read_file_strip_cr_ test_cmp_b | |
848 | stdin_for_diff='<<<"$test_cmp_b"' | |
849 | elif test "$1" = - && test -s "$2" | |
850 | then | |
851 | # read 1st file from stdin | |
852 | mingw_read_file_strip_cr_ test_cmp_a | |
853 | mingw_read_file_strip_cr_ test_cmp_b <"$2" | |
854 | stdin_for_diff='<<<"$test_cmp_a"' | |
855 | fi | |
856 | test -n "$test_cmp_a" && | |
857 | test -n "$test_cmp_b" && | |
858 | test "$test_cmp_a" = "$test_cmp_b" || | |
859 | eval "diff -u \"\$@\" $stdin_for_diff" | |
860 | } | |
861 | ||
862 | # $1 is the name of the shell variable to fill in | |
863 | mingw_read_file_strip_cr_ () { | |
864 | # Read line-wise using LF as the line separator | |
865 | # and use IFS to strip CR. | |
866 | local line | |
867 | while : | |
868 | do | |
869 | if IFS=$'\r' read -r -d $'\n' line | |
870 | then | |
871 | # good | |
872 | line=$line$'\n' | |
873 | else | |
874 | # we get here at EOF, but also if the last line | |
875 | # was not terminated by LF; in the latter case, | |
876 | # some text was read | |
877 | if test -z "$line" | |
878 | then | |
879 | # EOF, really | |
880 | break | |
881 | fi | |
882 | fi | |
883 | eval "$1=\$$1\$line" | |
884 | done | |
885 | } |