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.
211 git ${config_dir:+-C "$config_dir"} config --unset-all "$@"
213 case "$config_status" in
214 5) # ok, nothing to unset
218 return $config_status
221 # Set git config, automatically unsetting it after the test is over.
230 test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} '$1'" &&
231 git ${config_dir:+-C "$config_dir"} config "$@"
234 test_config_global () {
235 test_when_finished "test_unconfig --global '$1'" &&
236 git config --global "$@"
241 echo "#!${2-"$SHELL_PATH"}" &&
247 # Use test_set_prereq to tell that a particular prerequisite is available.
248 # The prerequisite can later be checked for in two ways:
250 # - Explicitly using test_have_prereq.
252 # - Implicitly by specifying the prerequisite tag in the calls to
253 # test_expect_{success,failure,code}.
255 # The single parameter is the prerequisite tag (a simple word, in all
256 # capital letters by convention).
259 satisfied_prereq="$satisfied_prereq$1 "
262 lazily_testable_prereq= lazily_tested_prereq=
264 # Usage: test_lazy_prereq PREREQ 'script'
265 test_lazy_prereq () {
266 lazily_testable_prereq="$lazily_testable_prereq$1 "
267 eval test_prereq_lazily_$1=\$2
270 test_run_lazy_prereq_ () {
272 mkdir -p "$TRASH_DIRECTORY/prereq-test-dir" &&
274 cd "$TRASH_DIRECTORY/prereq-test-dir" &&'"$2"'
276 say >&3 "checking prerequisite: $1"
280 rm -rf "$TRASH_DIRECTORY/prereq-test-dir"
281 if test "$eval_ret" = 0; then
282 say >&3 "prerequisite $1 ok"
284 say >&3 "prerequisite $1 not satisfied"
289 test_have_prereq () {
290 # prerequisites can be concatenated with ','
302 case "$prerequisite" in
305 prerequisite=${prerequisite#!}
311 case " $lazily_tested_prereq " in
315 case " $lazily_testable_prereq " in
317 eval "script=\$test_prereq_lazily_$prerequisite" &&
318 if test_run_lazy_prereq_ "$prerequisite" "$script"
320 test_set_prereq $prerequisite
322 lazily_tested_prereq="$lazily_tested_prereq$prerequisite "
327 total_prereq=$(($total_prereq + 1))
328 case "$satisfied_prereq" in
330 satisfied_this_prereq=t
333 satisfied_this_prereq=
336 case "$satisfied_this_prereq,$negative_prereq" in
338 ok_prereq=$(($ok_prereq + 1))
341 # Keep a list of missing prerequisites; restore
342 # the negative marker if necessary.
343 prerequisite=${negative_prereq:+!}$prerequisite
344 if test -z "$missing_prereq"
346 missing_prereq=$prerequisite
348 missing_prereq="$prerequisite,$missing_prereq"
353 test $total_prereq = $ok_prereq
356 test_declared_prereq () {
357 case ",$test_prereq," in
365 test_verify_prereq () {
366 test -z "$test_prereq" ||
367 expr >/dev/null "$test_prereq" : '[A-Z0-9_,!]*$' ||
368 error "bug in the test script: '$test_prereq' does not look like a prereq"
371 test_expect_failure () {
373 test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
375 error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
380 say >&3 "checking known breakage: $2"
381 if test_run_ "$2" expecting_failure
383 test_known_broken_ok_ "$1"
385 test_known_broken_failure_ "$1"
391 test_expect_success () {
393 test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
395 error "bug in the test script: not 2 or 3 parameters to test-expect-success"
400 say >&3 "expecting success: $2"
411 # test_external runs external test scripts that provide continuous
412 # test output about their progress, and succeeds/fails on
413 # zero/non-zero exit code. It outputs the test output on stdout even
414 # in non-verbose mode, and announces the external script with "# run
415 # <n>: ..." before running it. When providing relative paths, keep in
416 # mind that all scripts run in "trash directory".
417 # Usage: test_external description command arguments...
418 # Example: test_external 'Perl API' perl ../path/to/test.pl
420 test "$#" = 4 && { test_prereq=$1; shift; } || test_prereq=
422 error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
427 if ! test_skip "$descr" "$@"
429 # Announce the script to reduce confusion about the
430 # test output that follows.
431 say_color "" "# run $test_count: $descr ($*)"
432 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
433 # to be able to use them in script
434 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
435 # Run command; redirect its stderr to &4 as in
436 # test_run_, but keep its stdout on our stdout even in
441 if test $test_external_has_tap -eq 0; then
444 say_color "" "# test_external test $descr was ok"
445 test_success=$(($test_success + 1))
448 if test $test_external_has_tap -eq 0; then
449 test_failure_ "$descr" "$@"
451 say_color error "# test_external test $descr failed: $@"
452 test_failure=$(($test_failure + 1))
458 # Like test_external, but in addition tests that the command generated
459 # no output on stderr.
460 test_external_without_stderr () {
461 # The temporary file has no (and must have no) security
464 stderr="$tmp/git-external-stderr.$$.tmp"
465 test_external "$@" 4> "$stderr"
466 test -f "$stderr" || error "Internal error: $stderr disappeared."
467 descr="no stderr: $1"
469 say >&3 "# expecting no stderr from previous command"
470 if test ! -s "$stderr"
474 if test $test_external_has_tap -eq 0; then
477 say_color "" "# test_external_without_stderr test $descr was ok"
478 test_success=$(($test_success + 1))
481 if test "$verbose" = t
483 output=$(echo; echo "# Stderr is:"; cat "$stderr")
487 # rm first in case test_failure exits.
489 if test $test_external_has_tap -eq 0; then
490 test_failure_ "$descr" "$@" "$output"
492 say_color error "# test_external_without_stderr test $descr failed: $@: $output"
493 test_failure=$(($test_failure + 1))
498 # debugging-friendly alternatives to "test [-f|-d|-e]"
499 # The commands test the existence or non-existence of $1. $2 can be
500 # given to provide a more precise diagnosis.
501 test_path_is_file () {
504 echo "File $1 doesn't exist. $2"
509 test_path_is_dir () {
512 echo "Directory $1 doesn't exist. $2"
517 # Check if the directory exists and is empty as expected, barf otherwise.
518 test_dir_is_empty () {
519 test_path_is_dir "$1" &&
520 if test -n "$(ls -a1 "$1" | egrep -v '^\.\.?$')"
522 echo "Directory '$1' is not empty, it contains:"
528 test_path_is_missing () {
541 # test_line_count checks that a file has the number of lines it
542 # ought to. For example:
544 # test_expect_success 'produce exactly one line of output' '
545 # do something >output &&
546 # test_line_count = 1 output
549 # is like "test $(wc -l <output) = 1" except that it passes the
550 # output through when the number of lines is wrong.
555 error "bug in the test script: not 3 parameters to test_line_count"
556 elif ! test $(wc -l <"$3") "$1" "$2"
558 echo "test_line_count: line count for $3 !$1 $2"
564 # This is not among top-level (test_expect_success | test_expect_failure)
565 # but is a prefix that can be used in the test script, like:
567 # test_expect_success 'complain and die' '
569 # do something else &&
570 # test_must_fail git checkout ../outerspace
573 # Writing this as "! git checkout ../outerspace" is wrong, because
574 # the failure could be due to a segv. We want a controlled failure.
579 if test $exit_code = 0; then
580 echo >&2 "test_must_fail: command succeeded: $*"
582 elif test $exit_code -gt 129 && test $exit_code -le 192; then
583 echo >&2 "test_must_fail: died by signal: $*"
585 elif test $exit_code = 127; then
586 echo >&2 "test_must_fail: command not found: $*"
588 elif test $exit_code = 126; then
589 echo >&2 "test_must_fail: valgrind error: $*"
595 # Similar to test_must_fail, but tolerates success, too. This is
596 # meant to be used in contexts like:
598 # test_expect_success 'some command works without configuration' '
599 # test_might_fail git config --unset all.configuration &&
603 # Writing "git config --unset all.configuration || :" would be wrong,
604 # because we want to notice if it fails due to segv.
609 if test $exit_code -gt 129 && test $exit_code -le 192; then
610 echo >&2 "test_might_fail: died by signal: $*"
612 elif test $exit_code = 127; then
613 echo >&2 "test_might_fail: command not found: $*"
619 # Similar to test_must_fail and test_might_fail, but check that a
620 # given command exited with a given exit code. Meant to be used as:
622 # test_expect_success 'Merge with d/f conflicts' '
623 # test_expect_code 1 git merge "merge msg" B master
626 test_expect_code () {
631 if test $exit_code = $want_code
636 echo >&2 "test_expect_code: command exited with $exit_code, we wanted $want_code $*"
640 # test_cmp is a helper function to compare actual and expected output.
641 # You can use it like:
643 # test_expect_success 'foo works' '
644 # echo expected >expected &&
646 # test_cmp expected actual
649 # This could be written as either "cmp" or "diff -u", but:
650 # - cmp's output is not nearly as easy to read as diff -u
651 # - not all diff versions understand "-u"
657 # test_cmp_bin - helper to compare binary files
663 # Call any command "$@" but be more verbose about its
664 # failure. This is handy for commands like "test" which do
665 # not output anything when they fail.
668 echo >&2 "command failed: $(git rev-parse --sq-quote "$@")"
672 # Check if the file expected to be empty is indeed empty, and barfs
675 test_must_be_empty () {
678 echo "'$1' is not empty, it contains:"
684 # Tests that its two parameters refer to the same revision
686 git rev-parse --verify "$1" >expect.rev &&
687 git rev-parse --verify "$2" >actual.rev &&
688 test_cmp expect.rev actual.rev
691 # Print a sequence of numbers or letters in increasing order. This is
692 # similar to GNU seq(1), but the latter might not be available
693 # everywhere (and does not do letters). It may be used like:
695 # for i in $(test_seq 100)
697 # for j in $(test_seq 10 20)
699 # for k in $(test_seq a z)
710 *) error "bug in the test script: not 1 or 2 parameters to test_seq" ;;
712 perl -le 'print for $ARGV[0]..$ARGV[1]' -- "$@"
715 # This function can be used to schedule some commands to be run
716 # unconditionally at the end of the test to restore sanity:
718 # test_expect_success 'test core.capslock' '
719 # git config core.capslock true &&
720 # test_when_finished "git config --unset core.capslock" &&
724 # That would be roughly equivalent to
726 # test_expect_success 'test core.capslock' '
727 # git config core.capslock true &&
729 # git config --unset core.capslock
732 # except that the greeting and config --unset must both succeed for
735 # Note that under --immediate mode, no clean-up is done to help diagnose
738 test_when_finished () {
739 # We cannot detect when we are in a subshell in general, but by
740 # doing so on Bash is better than nothing (the test will
741 # silently pass on other shells).
742 test "${BASH_SUBSHELL-0}" = 0 ||
743 error "bug in test script: test_when_finished does nothing in a subshell"
745 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
748 # Most tests can use the created repository, but some may need to create more.
749 # Usage: test_create_repo <directory>
750 test_create_repo () {
752 error "bug in the test script: not 1 parameter to test-create-repo"
756 cd "$repo" || error "Cannot setup test environment"
757 "$GIT_EXEC_PATH/git-init" "--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 ||
758 error "cannot run git init -- have you built things yet?"
759 mv .git/hooks .git/hooks-disabled
763 # This function helps on symlink challenged file systems when it is not
764 # important that the file system entry is a symbolic link.
765 # Use test_ln_s_add instead of "ln -s x y && git add y" to add a
766 # symbolic link entry y to the index.
769 if test_have_prereq SYMLINKS
772 git update-index --add "$2"
774 printf '%s' "$1" >"$2" &&
775 ln_s_obj=$(git hash-object -w "$2") &&
776 git update-index --add --cacheinfo 120000 $ln_s_obj "$2" &&
777 # pick up stat info from the file
778 git update-index "$2"
782 # This function writes out its parameters, one per line
783 test_write_lines () {
788 command "$PERL_PATH" "$@"
791 # Is the value one of the various ways to spell a boolean true/false?
792 test_normalize_bool () {
793 git -c magic.variable="$1" config --bool magic.variable 2>/dev/null
796 # Given a variable $1, normalize the value of it to one of "true",
797 # "false", or "auto" and store the result to it.
799 # test_tristate GIT_TEST_HTTPD
801 # A variable set to an empty string is set to 'false'.
802 # A variable set to 'false' or 'auto' keeps its value.
803 # Anything else is set to 'true'.
804 # An unset variable defaults to 'auto'.
806 # The last rule is to allow people to set the variable to an empty
807 # string and export it to decline testing the particular feature
808 # for versions both before and after this change. We used to treat
809 # both unset and empty variable as a signal for "do not test" and
810 # took any non-empty string as "please test".
813 if eval "test x\"\${$1+isset}\" = xisset"
820 *) $1=\$(test_normalize_bool \$$1 || echo true) ;;
828 # Exit the test suite, either by skipping all remaining tests or by
829 # exiting with an error. If "$1" is "auto", we then we assume we were
830 # opportunistically trying to set up some tests and we skip. If it is
831 # "true", then we report a failure.
833 # The error/skip message should be given by $2.
835 test_skip_or_die () {
845 error "BUG: test tristate is '$1' (real error: $2)"
849 # The following mingw_* functions obey POSIX shell syntax, but are actually
850 # bash scripts, and are meant to be used only with bash on Windows.
852 # A test_cmp function that treats LF and CRLF equal and avoids to fork
853 # diff when possible.
855 # Read text into shell variables and compare them. If the results
856 # are different, use regular diff to report the difference.
857 local test_cmp_a= test_cmp_b=
859 # When text came from stdin (one argument is '-') we must feed it
861 local stdin_for_diff=
863 # Since it is difficult to detect the difference between an
864 # empty input file and a failure to read the files, we go straight
865 # to diff if one of the inputs is empty.
866 if test -s "$1" && test -s "$2"
868 # regular case: both files non-empty
869 mingw_read_file_strip_cr_ test_cmp_a <"$1"
870 mingw_read_file_strip_cr_ test_cmp_b <"$2"
871 elif test -s "$1" && test "$2" = -
873 # read 2nd file from stdin
874 mingw_read_file_strip_cr_ test_cmp_a <"$1"
875 mingw_read_file_strip_cr_ test_cmp_b
876 stdin_for_diff='<<<"$test_cmp_b"'
877 elif test "$1" = - && test -s "$2"
879 # read 1st file from stdin
880 mingw_read_file_strip_cr_ test_cmp_a
881 mingw_read_file_strip_cr_ test_cmp_b <"$2"
882 stdin_for_diff='<<<"$test_cmp_a"'
884 test -n "$test_cmp_a" &&
885 test -n "$test_cmp_b" &&
886 test "$test_cmp_a" = "$test_cmp_b" ||
887 eval "diff -u \"\$@\" $stdin_for_diff"
890 # $1 is the name of the shell variable to fill in
891 mingw_read_file_strip_cr_ () {
892 # Read line-wise using LF as the line separator
893 # and use IFS to strip CR.
897 if IFS=$'\r' read -r -d $'\n' line
902 # we get here at EOF, but also if the last line
903 # was not terminated by LF; in the latter case,