1 # Library of functions shared by all tests scripts, included by
4 # Copyright (c) 2005 Junio C Hamano
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.
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.
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/ .
19 # The semantics of the editor variables are that of invoking
20 # sh -c "$EDITOR \"$@\"" files ...
22 # If our trash directory contains shell metacharacters, they will be
23 # interpreted if we just set $EDITOR directly, so do a little dance with
24 # environment variables to work around this.
26 # In particular, quoting isn't enough, as the path may contain the same quote
31 EDITOR='"$FAKE_EDITOR"'
35 test_set_index_version () {
36 GIT_INDEX_VERSION="$1"
37 export GIT_INDEX_VERSION
40 test_decode_color () {
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";
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)
69 n = split(codes, ary, ";");
71 for (i = 1; i <= n; i++) {
72 printf "%s%s", sep, name(ary[i]);
77 $0 = substr($0, RSTART + RLENGTH, length($0) - RSTART - RLENGTH + 1);
105 sed -e 's/$/Q/' | tr Q '\015'
109 tr '\015' Q | sed -e 's/Q$//'
112 # In some bourne shell implementations, the "unset" builtin returns
113 # nonzero status when a variable to be unset was not set in the first
116 # Use sane_unset when that should not be considered an error.
124 if test -z "${test_tick+set}"
128 test_tick=$(($test_tick + 60))
130 GIT_COMMITTER_DATE="$test_tick -0700"
131 GIT_AUTHOR_DATE="$test_tick -0700"
132 export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
135 # Stop execution and start a shell. This is useful for debugging tests and
136 # only makes sense together with "-v".
138 # Be sure to remove all invocations of this command before submitting.
141 if test "$verbose" = t; then
142 "$SHELL_PATH" <&6 >&3 2>&4
144 error >&5 "test_pause requires --verbose"
148 # Call test_commit with the arguments "<message> [<file> [<contents> [<tag>]]]"
150 # This will commit a file with the given contents and the given commit
151 # message, and tag the resulting commit with the given tag name.
153 # <file>, <contents>, and <tag> all default to <message>.
174 echo "${3-$1}" > "$file" &&
180 git commit $signoff -m "$1" &&
184 # Call test_merge with the arguments "<message> <commit>", where <commit>
185 # can be a tag pointing to the commit-to-merge.
189 git merge -m "$1" "$2" &&
193 # This function helps systems where core.filemode=false is set.
194 # Use it instead of plain 'chmod +x' to set or unset the executable bit
195 # of a file in the working directory and add it to the index.
199 git update-index --add "--chmod=$@"
202 # Unset a configuration variable, but don't fail if it doesn't exist.
204 git config --unset-all "$@"
206 case "$config_status" in
207 5) # ok, nothing to unset
211 return $config_status
214 # Set git config, automatically unsetting it after the test is over.
216 test_when_finished "test_unconfig '$1'" &&
220 test_config_global () {
221 test_when_finished "test_unconfig --global '$1'" &&
222 git config --global "$@"
227 echo "#!${2-"$SHELL_PATH"}" &&
233 # Use test_set_prereq to tell that a particular prerequisite is available.
234 # The prerequisite can later be checked for in two ways:
236 # - Explicitly using test_have_prereq.
238 # - Implicitly by specifying the prerequisite tag in the calls to
239 # test_expect_{success,failure,code}.
241 # The single parameter is the prerequisite tag (a simple word, in all
242 # capital letters by convention).
245 satisfied_prereq="$satisfied_prereq$1 "
248 lazily_testable_prereq= lazily_tested_prereq=
250 # Usage: test_lazy_prereq PREREQ 'script'
251 test_lazy_prereq () {
252 lazily_testable_prereq="$lazily_testable_prereq$1 "
253 eval test_prereq_lazily_$1=\$2
256 test_run_lazy_prereq_ () {
258 mkdir -p "$TRASH_DIRECTORY/prereq-test-dir" &&
260 cd "$TRASH_DIRECTORY/prereq-test-dir" &&'"$2"'
262 say >&3 "checking prerequisite: $1"
266 rm -rf "$TRASH_DIRECTORY/prereq-test-dir"
267 if test "$eval_ret" = 0; then
268 say >&3 "prerequisite $1 ok"
270 say >&3 "prerequisite $1 not satisfied"
275 test_have_prereq () {
276 # prerequisites can be concatenated with ','
288 case "$prerequisite" in
291 prerequisite=${prerequisite#!}
297 case " $lazily_tested_prereq " in
301 case " $lazily_testable_prereq " in
303 eval "script=\$test_prereq_lazily_$prerequisite" &&
304 if test_run_lazy_prereq_ "$prerequisite" "$script"
306 test_set_prereq $prerequisite
308 lazily_tested_prereq="$lazily_tested_prereq$prerequisite "
313 total_prereq=$(($total_prereq + 1))
314 case "$satisfied_prereq" in
316 satisfied_this_prereq=t
319 satisfied_this_prereq=
322 case "$satisfied_this_prereq,$negative_prereq" in
324 ok_prereq=$(($ok_prereq + 1))
327 # Keep a list of missing prerequisites; restore
328 # the negative marker if necessary.
329 prerequisite=${negative_prereq:+!}$prerequisite
330 if test -z "$missing_prereq"
332 missing_prereq=$prerequisite
334 missing_prereq="$prerequisite,$missing_prereq"
339 test $total_prereq = $ok_prereq
342 test_declared_prereq () {
343 case ",$test_prereq," in
351 test_verify_prereq () {
352 test -z "$test_prereq" ||
353 expr >/dev/null "$test_prereq" : '[A-Z0-9_,!]*$' ||
354 error "bug in the test script: '$test_prereq' does not look like a prereq"
357 test_expect_failure () {
359 test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
361 error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
366 say >&3 "checking known breakage: $2"
367 if test_run_ "$2" expecting_failure
369 test_known_broken_ok_ "$1"
371 test_known_broken_failure_ "$1"
377 test_expect_success () {
379 test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
381 error "bug in the test script: not 2 or 3 parameters to test-expect-success"
386 say >&3 "expecting success: $2"
397 # test_external runs external test scripts that provide continuous
398 # test output about their progress, and succeeds/fails on
399 # zero/non-zero exit code. It outputs the test output on stdout even
400 # in non-verbose mode, and announces the external script with "# run
401 # <n>: ..." before running it. When providing relative paths, keep in
402 # mind that all scripts run in "trash directory".
403 # Usage: test_external description command arguments...
404 # Example: test_external 'Perl API' perl ../path/to/test.pl
406 test "$#" = 4 && { test_prereq=$1; shift; } || test_prereq=
408 error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
413 if ! test_skip "$descr" "$@"
415 # Announce the script to reduce confusion about the
416 # test output that follows.
417 say_color "" "# run $test_count: $descr ($*)"
418 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
419 # to be able to use them in script
420 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
421 # Run command; redirect its stderr to &4 as in
422 # test_run_, but keep its stdout on our stdout even in
427 if test $test_external_has_tap -eq 0; then
430 say_color "" "# test_external test $descr was ok"
431 test_success=$(($test_success + 1))
434 if test $test_external_has_tap -eq 0; then
435 test_failure_ "$descr" "$@"
437 say_color error "# test_external test $descr failed: $@"
438 test_failure=$(($test_failure + 1))
444 # Like test_external, but in addition tests that the command generated
445 # no output on stderr.
446 test_external_without_stderr () {
447 # The temporary file has no (and must have no) security
450 stderr="$tmp/git-external-stderr.$$.tmp"
451 test_external "$@" 4> "$stderr"
452 test -f "$stderr" || error "Internal error: $stderr disappeared."
453 descr="no stderr: $1"
455 say >&3 "# expecting no stderr from previous command"
456 if test ! -s "$stderr"
460 if test $test_external_has_tap -eq 0; then
463 say_color "" "# test_external_without_stderr test $descr was ok"
464 test_success=$(($test_success + 1))
467 if test "$verbose" = t
469 output=$(echo; echo "# Stderr is:"; cat "$stderr")
473 # rm first in case test_failure exits.
475 if test $test_external_has_tap -eq 0; then
476 test_failure_ "$descr" "$@" "$output"
478 say_color error "# test_external_without_stderr test $descr failed: $@: $output"
479 test_failure=$(($test_failure + 1))
484 # debugging-friendly alternatives to "test [-f|-d|-e]"
485 # The commands test the existence or non-existence of $1. $2 can be
486 # given to provide a more precise diagnosis.
487 test_path_is_file () {
490 echo "File $1 doesn't exist. $2"
495 test_path_is_dir () {
498 echo "Directory $1 doesn't exist. $2"
503 # Check if the directory exists and is empty as expected, barf otherwise.
504 test_dir_is_empty () {
505 test_path_is_dir "$1" &&
506 if test -n "$(ls -a1 "$1" | egrep -v '^\.\.?$')"
508 echo "Directory '$1' is not empty, it contains:"
514 test_path_is_missing () {
527 # test_line_count checks that a file has the number of lines it
528 # ought to. For example:
530 # test_expect_success 'produce exactly one line of output' '
531 # do something >output &&
532 # test_line_count = 1 output
535 # is like "test $(wc -l <output) = 1" except that it passes the
536 # output through when the number of lines is wrong.
541 error "bug in the test script: not 3 parameters to test_line_count"
542 elif ! test $(wc -l <"$3") "$1" "$2"
544 echo "test_line_count: line count for $3 !$1 $2"
550 # This is not among top-level (test_expect_success | test_expect_failure)
551 # but is a prefix that can be used in the test script, like:
553 # test_expect_success 'complain and die' '
555 # do something else &&
556 # test_must_fail git checkout ../outerspace
559 # Writing this as "! git checkout ../outerspace" is wrong, because
560 # the failure could be due to a segv. We want a controlled failure.
565 if test $exit_code = 0; then
566 echo >&2 "test_must_fail: command succeeded: $*"
568 elif test $exit_code -gt 129 && test $exit_code -le 192; then
569 echo >&2 "test_must_fail: died by signal: $*"
571 elif test $exit_code = 127; then
572 echo >&2 "test_must_fail: command not found: $*"
574 elif test $exit_code = 126; then
575 echo >&2 "test_must_fail: valgrind error: $*"
581 # Similar to test_must_fail, but tolerates success, too. This is
582 # meant to be used in contexts like:
584 # test_expect_success 'some command works without configuration' '
585 # test_might_fail git config --unset all.configuration &&
589 # Writing "git config --unset all.configuration || :" would be wrong,
590 # because we want to notice if it fails due to segv.
595 if test $exit_code -gt 129 && test $exit_code -le 192; then
596 echo >&2 "test_might_fail: died by signal: $*"
598 elif test $exit_code = 127; then
599 echo >&2 "test_might_fail: command not found: $*"
605 # Similar to test_must_fail and test_might_fail, but check that a
606 # given command exited with a given exit code. Meant to be used as:
608 # test_expect_success 'Merge with d/f conflicts' '
609 # test_expect_code 1 git merge "merge msg" B master
612 test_expect_code () {
617 if test $exit_code = $want_code
622 echo >&2 "test_expect_code: command exited with $exit_code, we wanted $want_code $*"
626 # test_cmp is a helper function to compare actual and expected output.
627 # You can use it like:
629 # test_expect_success 'foo works' '
630 # echo expected >expected &&
632 # test_cmp expected actual
635 # This could be written as either "cmp" or "diff -u", but:
636 # - cmp's output is not nearly as easy to read as diff -u
637 # - not all diff versions understand "-u"
643 # test_cmp_bin - helper to compare binary files
649 # Call any command "$@" but be more verbose about its
650 # failure. This is handy for commands like "test" which do
651 # not output anything when they fail.
654 echo >&2 "command failed: $(git rev-parse --sq-quote "$@")"
658 # Check if the file expected to be empty is indeed empty, and barfs
661 test_must_be_empty () {
664 echo "'$1' is not empty, it contains:"
670 # Tests that its two parameters refer to the same revision
672 git rev-parse --verify "$1" >expect.rev &&
673 git rev-parse --verify "$2" >actual.rev &&
674 test_cmp expect.rev actual.rev
677 # Print a sequence of numbers or letters in increasing order. This is
678 # similar to GNU seq(1), but the latter might not be available
679 # everywhere (and does not do letters). It may be used like:
681 # for i in $(test_seq 100)
683 # for j in $(test_seq 10 20)
685 # for k in $(test_seq a z)
696 *) error "bug in the test script: not 1 or 2 parameters to test_seq" ;;
698 perl -le 'print for $ARGV[0]..$ARGV[1]' -- "$@"
701 # This function can be used to schedule some commands to be run
702 # unconditionally at the end of the test to restore sanity:
704 # test_expect_success 'test core.capslock' '
705 # git config core.capslock true &&
706 # test_when_finished "git config --unset core.capslock" &&
710 # That would be roughly equivalent to
712 # test_expect_success 'test core.capslock' '
713 # git config core.capslock true &&
715 # git config --unset core.capslock
718 # except that the greeting and config --unset must both succeed for
721 # Note that under --immediate mode, no clean-up is done to help diagnose
724 test_when_finished () {
726 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
729 # Most tests can use the created repository, but some may need to create more.
730 # Usage: test_create_repo <directory>
731 test_create_repo () {
733 error "bug in the test script: not 1 parameter to test-create-repo"
737 cd "$repo" || error "Cannot setup test environment"
738 "$GIT_EXEC_PATH/git-init" "--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 ||
739 error "cannot run git init -- have you built things yet?"
740 mv .git/hooks .git/hooks-disabled
744 # This function helps on symlink challenged file systems when it is not
745 # important that the file system entry is a symbolic link.
746 # Use test_ln_s_add instead of "ln -s x y && git add y" to add a
747 # symbolic link entry y to the index.
750 if test_have_prereq SYMLINKS
753 git update-index --add "$2"
755 printf '%s' "$1" >"$2" &&
756 ln_s_obj=$(git hash-object -w "$2") &&
757 git update-index --add --cacheinfo 120000 $ln_s_obj "$2" &&
758 # pick up stat info from the file
759 git update-index "$2"
763 # This function writes out its parameters, one per line
764 test_write_lines () {
769 command "$PERL_PATH" "$@"
772 # Is the value one of the various ways to spell a boolean true/false?
773 test_normalize_bool () {
774 git -c magic.variable="$1" config --bool magic.variable 2>/dev/null
777 # Given a variable $1, normalize the value of it to one of "true",
778 # "false", or "auto" and store the result to it.
780 # test_tristate GIT_TEST_HTTPD
782 # A variable set to an empty string is set to 'false'.
783 # A variable set to 'false' or 'auto' keeps its value.
784 # Anything else is set to 'true'.
785 # An unset variable defaults to 'auto'.
787 # The last rule is to allow people to set the variable to an empty
788 # string and export it to decline testing the particular feature
789 # for versions both before and after this change. We used to treat
790 # both unset and empty variable as a signal for "do not test" and
791 # took any non-empty string as "please test".
794 if eval "test x\"\${$1+isset}\" = xisset"
801 *) $1=\$(test_normalize_bool \$$1 || echo true) ;;
809 # Exit the test suite, either by skipping all remaining tests or by
810 # exiting with an error. If "$1" is "auto", we then we assume we were
811 # opportunistically trying to set up some tests and we skip. If it is
812 # "true", then we report a failure.
814 # The error/skip message should be given by $2.
816 test_skip_or_die () {
826 error "BUG: test tristate is '$1' (real error: $2)"
830 # The following mingw_* functions obey POSIX shell syntax, but are actually
831 # bash scripts, and are meant to be used only with bash on Windows.
833 # A test_cmp function that treats LF and CRLF equal and avoids to fork
834 # diff when possible.
836 # Read text into shell variables and compare them. If the results
837 # are different, use regular diff to report the difference.
838 local test_cmp_a= test_cmp_b=
840 # When text came from stdin (one argument is '-') we must feed it
842 local stdin_for_diff=
844 # Since it is difficult to detect the difference between an
845 # empty input file and a failure to read the files, we go straight
846 # to diff if one of the inputs is empty.
847 if test -s "$1" && test -s "$2"
849 # regular case: both files non-empty
850 mingw_read_file_strip_cr_ test_cmp_a <"$1"
851 mingw_read_file_strip_cr_ test_cmp_b <"$2"
852 elif test -s "$1" && test "$2" = -
854 # read 2nd file from stdin
855 mingw_read_file_strip_cr_ test_cmp_a <"$1"
856 mingw_read_file_strip_cr_ test_cmp_b
857 stdin_for_diff='<<<"$test_cmp_b"'
858 elif test "$1" = - && test -s "$2"
860 # read 1st file from stdin
861 mingw_read_file_strip_cr_ test_cmp_a
862 mingw_read_file_strip_cr_ test_cmp_b <"$2"
863 stdin_for_diff='<<<"$test_cmp_a"'
865 test -n "$test_cmp_a" &&
866 test -n "$test_cmp_b" &&
867 test "$test_cmp_a" = "$test_cmp_b" ||
868 eval "diff -u \"\$@\" $stdin_for_diff"
871 # $1 is the name of the shell variable to fill in
872 mingw_read_file_strip_cr_ () {
873 # Read line-wise using LF as the line separator
874 # and use IFS to strip CR.
878 if IFS=$'\r' read -r -d $'\n' line
883 # we get here at EOF, but also if the last line
884 # was not terminated by LF; in the latter case,