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 == 7) return "REVERSE";
46 if (n == 30) return "BLACK";
47 if (n == 31) return "RED";
48 if (n == 32) return "GREEN";
49 if (n == 33) return "YELLOW";
50 if (n == 34) return "BLUE";
51 if (n == 35) return "MAGENTA";
52 if (n == 36) return "CYAN";
53 if (n == 37) return "WHITE";
54 if (n == 40) return "BLACK";
55 if (n == 41) return "BRED";
56 if (n == 42) return "BGREEN";
57 if (n == 43) return "BYELLOW";
58 if (n == 44) return "BBLUE";
59 if (n == 45) return "BMAGENTA";
60 if (n == 46) return "BCYAN";
61 if (n == 47) return "BWHITE";
64 while (match($0, /\033\[[0-9;]*m/) != 0) {
65 printf "%s<", substr($0, 1, RSTART-1);
66 codes = substr($0, RSTART+2, RLENGTH-3);
67 if (length(codes) == 0)
70 n = split(codes, ary, ";");
72 for (i = 1; i <= n; i++) {
73 printf "%s%s", sep, name(ary[i]);
78 $0 = substr($0, RSTART + RLENGTH, length($0) - RSTART - RLENGTH + 1);
86 perl -pe 'y/\012/\000/'
110 sed -e 's/$/Q/' | tr Q '\015'
114 tr '\015' Q | sed -e 's/Q$//'
117 # In some bourne shell implementations, the "unset" builtin returns
118 # nonzero status when a variable to be unset was not set in the first
121 # Use sane_unset when that should not be considered an error.
129 if test -z "${test_tick+set}"
133 test_tick=$(($test_tick + 60))
135 GIT_COMMITTER_DATE="$test_tick -0700"
136 GIT_AUTHOR_DATE="$test_tick -0700"
137 export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
140 # Stop execution and start a shell. This is useful for debugging tests.
142 # Be sure to remove all invocations of this command before submitting.
145 "$SHELL_PATH" <&6 >&5 2>&7
148 # Wrap git with a debugger. Adding this to a command can make it easier
149 # to understand what is going on in a failing test.
152 # debug git checkout master
153 # debug --debugger=nemiver git $ARGS
154 # debug -d "valgrind --tool=memcheck --track-origins=yes" git $ARGS
162 GIT_DEBUGGER="${1#*=}" &&
169 GIT_DEBUGGER="${GIT_DEBUGGER}" "$@" <&6 >&5 2>&7
172 # Call test_commit with the arguments
173 # [-C <directory>] <message> [<file> [<contents> [<tag>]]]"
175 # This will commit a file with the given contents and the given commit
176 # message, and tag the resulting commit with the given tag name.
178 # <file>, <contents>, and <tag> all default to <message>.
180 # If the first argument is "-C", the second argument is used as a path for
181 # the git invocations.
206 indir=${indir:+"$indir"/} &&
208 echo "${3-$1}" > "$indir$file" &&
209 git ${indir:+ -C "$indir"} add "$file" &&
214 git ${indir:+ -C "$indir"} commit $signoff -m "$1" &&
215 git ${indir:+ -C "$indir"} tag "${4:-$1}"
218 # Call test_merge with the arguments "<message> <commit>", where <commit>
219 # can be a tag pointing to the commit-to-merge.
223 git merge -m "$1" "$2" &&
227 # This function helps systems where core.filemode=false is set.
228 # Use it instead of plain 'chmod +x' to set or unset the executable bit
229 # of a file in the working directory and add it to the index.
233 git update-index --add "--chmod=$@"
236 # Get the modebits from a file.
238 ls -l "$1" | sed -e 's|^\(..........\).*|\1|'
241 # Unset a configuration variable, but don't fail if it doesn't exist.
250 git ${config_dir:+-C "$config_dir"} config --unset-all "$@"
252 case "$config_status" in
253 5) # ok, nothing to unset
257 return $config_status
260 # Set git config, automatically unsetting it after the test is over.
269 test_when_finished "test_unconfig ${config_dir:+-C '$config_dir'} '$1'" &&
270 git ${config_dir:+-C "$config_dir"} config "$@"
273 test_config_global () {
274 test_when_finished "test_unconfig --global '$1'" &&
275 git config --global "$@"
280 echo "#!${2-"$SHELL_PATH"}" &&
286 # Use test_set_prereq to tell that a particular prerequisite is available.
287 # The prerequisite can later be checked for in two ways:
289 # - Explicitly using test_have_prereq.
291 # - Implicitly by specifying the prerequisite tag in the calls to
292 # test_expect_{success,failure,code}.
294 # The single parameter is the prerequisite tag (a simple word, in all
295 # capital letters by convention).
297 test_unset_prereq () {
298 ! test_have_prereq "$1" ||
299 satisfied_prereq="${satisfied_prereq% $1 *} ${satisfied_prereq#* $1 }"
305 test_unset_prereq "${1#!}"
308 satisfied_prereq="$satisfied_prereq$1 "
313 lazily_testable_prereq= lazily_tested_prereq=
315 # Usage: test_lazy_prereq PREREQ 'script'
316 test_lazy_prereq () {
317 lazily_testable_prereq="$lazily_testable_prereq$1 "
318 eval test_prereq_lazily_$1=\$2
321 test_run_lazy_prereq_ () {
323 mkdir -p "$TRASH_DIRECTORY/prereq-test-dir" &&
325 cd "$TRASH_DIRECTORY/prereq-test-dir" &&'"$2"'
327 say >&3 "checking prerequisite: $1"
331 rm -rf "$TRASH_DIRECTORY/prereq-test-dir"
332 if test "$eval_ret" = 0; then
333 say >&3 "prerequisite $1 ok"
335 say >&3 "prerequisite $1 not satisfied"
340 test_have_prereq () {
341 # prerequisites can be concatenated with ','
353 case "$prerequisite" in
356 prerequisite=${prerequisite#!}
362 case " $lazily_tested_prereq " in
366 case " $lazily_testable_prereq " in
368 eval "script=\$test_prereq_lazily_$prerequisite" &&
369 if test_run_lazy_prereq_ "$prerequisite" "$script"
371 test_set_prereq $prerequisite
373 lazily_tested_prereq="$lazily_tested_prereq$prerequisite "
378 total_prereq=$(($total_prereq + 1))
379 case "$satisfied_prereq" in
381 satisfied_this_prereq=t
384 satisfied_this_prereq=
387 case "$satisfied_this_prereq,$negative_prereq" in
389 ok_prereq=$(($ok_prereq + 1))
392 # Keep a list of missing prerequisites; restore
393 # the negative marker if necessary.
394 prerequisite=${negative_prereq:+!}$prerequisite
395 if test -z "$missing_prereq"
397 missing_prereq=$prerequisite
399 missing_prereq="$prerequisite,$missing_prereq"
404 test $total_prereq = $ok_prereq
407 test_declared_prereq () {
408 case ",$test_prereq," in
416 test_verify_prereq () {
417 test -z "$test_prereq" ||
418 expr >/dev/null "$test_prereq" : '[A-Z0-9_,!]*$' ||
419 error "bug in the test script: '$test_prereq' does not look like a prereq"
422 test_expect_failure () {
424 test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
426 error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
431 say >&3 "checking known breakage: $2"
432 if test_run_ "$2" expecting_failure
434 test_known_broken_ok_ "$1"
436 test_known_broken_failure_ "$1"
442 test_expect_success () {
444 test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
446 error "bug in the test script: not 2 or 3 parameters to test-expect-success"
451 say >&3 "expecting success: $2"
462 # test_external runs external test scripts that provide continuous
463 # test output about their progress, and succeeds/fails on
464 # zero/non-zero exit code. It outputs the test output on stdout even
465 # in non-verbose mode, and announces the external script with "# run
466 # <n>: ..." before running it. When providing relative paths, keep in
467 # mind that all scripts run in "trash directory".
468 # Usage: test_external description command arguments...
469 # Example: test_external 'Perl API' perl ../path/to/test.pl
471 test "$#" = 4 && { test_prereq=$1; shift; } || test_prereq=
473 error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
478 if ! test_skip "$descr" "$@"
480 # Announce the script to reduce confusion about the
481 # test output that follows.
482 say_color "" "# run $test_count: $descr ($*)"
483 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
484 # to be able to use them in script
485 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
486 # Run command; redirect its stderr to &4 as in
487 # test_run_, but keep its stdout on our stdout even in
492 if test $test_external_has_tap -eq 0; then
495 say_color "" "# test_external test $descr was ok"
496 test_success=$(($test_success + 1))
499 if test $test_external_has_tap -eq 0; then
500 test_failure_ "$descr" "$@"
502 say_color error "# test_external test $descr failed: $@"
503 test_failure=$(($test_failure + 1))
509 # Like test_external, but in addition tests that the command generated
510 # no output on stderr.
511 test_external_without_stderr () {
512 # The temporary file has no (and must have no) security
515 stderr="$tmp/git-external-stderr.$$.tmp"
516 test_external "$@" 4> "$stderr"
517 test -f "$stderr" || error "Internal error: $stderr disappeared."
518 descr="no stderr: $1"
520 say >&3 "# expecting no stderr from previous command"
521 if test ! -s "$stderr"
525 if test $test_external_has_tap -eq 0; then
528 say_color "" "# test_external_without_stderr test $descr was ok"
529 test_success=$(($test_success + 1))
532 if test "$verbose" = t
534 output=$(echo; echo "# Stderr is:"; cat "$stderr")
538 # rm first in case test_failure exits.
540 if test $test_external_has_tap -eq 0; then
541 test_failure_ "$descr" "$@" "$output"
543 say_color error "# test_external_without_stderr test $descr failed: $@: $output"
544 test_failure=$(($test_failure + 1))
549 # debugging-friendly alternatives to "test [-f|-d|-e]"
550 # The commands test the existence or non-existence of $1. $2 can be
551 # given to provide a more precise diagnosis.
552 test_path_is_file () {
555 echo "File $1 doesn't exist. $2"
560 test_path_is_dir () {
563 echo "Directory $1 doesn't exist. $2"
568 # Check if the directory exists and is empty as expected, barf otherwise.
569 test_dir_is_empty () {
570 test_path_is_dir "$1" &&
571 if test -n "$(ls -a1 "$1" | egrep -v '^\.\.?$')"
573 echo "Directory '$1' is not empty, it contains:"
579 test_path_is_missing () {
592 # test_line_count checks that a file has the number of lines it
593 # ought to. For example:
595 # test_expect_success 'produce exactly one line of output' '
596 # do something >output &&
597 # test_line_count = 1 output
600 # is like "test $(wc -l <output) = 1" except that it passes the
601 # output through when the number of lines is wrong.
606 error "bug in the test script: not 3 parameters to test_line_count"
607 elif ! test $(wc -l <"$3") "$1" "$2"
609 echo "test_line_count: line count for $3 !$1 $2"
615 # Returns success if a comma separated string of keywords ($1) contains a
616 # given keyword ($2).
618 # `list_contains "foo,bar" bar` returns 0
619 # `list_contains "foo" bar` returns 1
630 # This is not among top-level (test_expect_success | test_expect_failure)
631 # but is a prefix that can be used in the test script, like:
633 # test_expect_success 'complain and die' '
635 # do something else &&
636 # test_must_fail git checkout ../outerspace
639 # Writing this as "! git checkout ../outerspace" is wrong, because
640 # the failure could be due to a segv. We want a controlled failure.
642 # Accepts the following options:
644 # ok=<signal-name>[,<...>]:
645 # Don't treat an exit caused by the given signal as error.
646 # Multiple signals can be specified as a comma separated list.
647 # Currently recognized signal names are: sigpipe, success.
648 # (Don't use 'success', use 'test_might_fail' instead.)
662 if test $exit_code -eq 0 && ! list_contains "$_test_ok" success
664 echo >&4 "test_must_fail: command succeeded: $*"
666 elif test_match_signal 13 $exit_code && list_contains "$_test_ok" sigpipe
669 elif test $exit_code -gt 129 && test $exit_code -le 192
671 echo >&4 "test_must_fail: died by signal $(($exit_code - 128)): $*"
673 elif test $exit_code -eq 127
675 echo >&4 "test_must_fail: command not found: $*"
677 elif test $exit_code -eq 126
679 echo >&4 "test_must_fail: valgrind error: $*"
685 # Similar to test_must_fail, but tolerates success, too. This is
686 # meant to be used in contexts like:
688 # test_expect_success 'some command works without configuration' '
689 # test_might_fail git config --unset all.configuration &&
693 # Writing "git config --unset all.configuration || :" would be wrong,
694 # because we want to notice if it fails due to segv.
696 # Accepts the same options as test_must_fail.
699 test_must_fail ok=success "$@" 2>&7
702 # Similar to test_must_fail and test_might_fail, but check that a
703 # given command exited with a given exit code. Meant to be used as:
705 # test_expect_success 'Merge with d/f conflicts' '
706 # test_expect_code 1 git merge "merge msg" B master
709 test_expect_code () {
714 if test $exit_code = $want_code
719 echo >&4 "test_expect_code: command exited with $exit_code, we wanted $want_code $*"
723 # test_cmp is a helper function to compare actual and expected output.
724 # You can use it like:
726 # test_expect_success 'foo works' '
727 # echo expected >expected &&
729 # test_cmp expected actual
732 # This could be written as either "cmp" or "diff -u", but:
733 # - cmp's output is not nearly as easy to read as diff -u
734 # - not all diff versions understand "-u"
740 # test_cmp_bin - helper to compare binary files
746 # Use this instead of test_cmp to compare files that contain expected and
747 # actual output from git commands that can be translated. When running
748 # under GETTEXT_POISON this pretends that the command produced expected
751 test -n "$GETTEXT_POISON" || test_cmp "$@"
754 # Use this instead of "grep expected-string actual" to see if the
755 # output from a git command that can be translated either contains an
756 # expected string, or does not contain an unwanted one. When running
757 # under GETTEXT_POISON this pretends that the command produced expected
760 eval "last_arg=\${$#}"
762 test -f "$last_arg" ||
763 error "bug in the test script: test_i18ngrep requires a file" \
764 "to read as the last parameter"
767 { test "x!" = "x$1" && test $# -lt 3 ; }
769 error "bug in the test script: too few parameters to test_i18ngrep"
772 if test -n "$GETTEXT_POISON"
781 ! grep "$@" && return 0
783 echo >&4 "error: '! grep $@' did find a match in:"
785 grep "$@" && return 0
787 echo >&4 "error: 'grep $@' didn't find a match in:"
790 if test -s "$last_arg"
794 echo >&4 "<File '$last_arg' is empty>"
800 # Call any command "$@" but be more verbose about its
801 # failure. This is handy for commands like "test" which do
802 # not output anything when they fail.
805 echo >&4 "command failed: $(git rev-parse --sq-quote "$@")"
809 # Check if the file expected to be empty is indeed empty, and barfs
812 test_must_be_empty () {
813 test_path_is_file "$1" &&
816 echo "'$1' is not empty, it contains:"
822 # Tests that its two parameters refer to the same revision
824 git rev-parse --verify "$1" >expect.rev &&
825 git rev-parse --verify "$2" >actual.rev &&
826 test_cmp expect.rev actual.rev
829 # Print a sequence of integers in increasing order, either with
830 # two arguments (start and end):
832 # test_seq 1 5 -- outputs 1 2 3 4 5 one line at a time
834 # or with one argument (end), in which case it starts counting
841 *) error "bug in the test script: not 1 or 2 parameters to test_seq" ;;
843 test_seq_counter__=$1
844 while test "$test_seq_counter__" -le "$2"
846 echo "$test_seq_counter__"
847 test_seq_counter__=$(( $test_seq_counter__ + 1 ))
851 # This function can be used to schedule some commands to be run
852 # unconditionally at the end of the test to restore sanity:
854 # test_expect_success 'test core.capslock' '
855 # git config core.capslock true &&
856 # test_when_finished "git config --unset core.capslock" &&
860 # That would be roughly equivalent to
862 # test_expect_success 'test core.capslock' '
863 # git config core.capslock true &&
865 # git config --unset core.capslock
868 # except that the greeting and config --unset must both succeed for
871 # Note that under --immediate mode, no clean-up is done to help diagnose
874 test_when_finished () {
875 # We cannot detect when we are in a subshell in general, but by
876 # doing so on Bash is better than nothing (the test will
877 # silently pass on other shells).
878 test "${BASH_SUBSHELL-0}" = 0 ||
879 error "bug in test script: test_when_finished does nothing in a subshell"
881 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
884 # Most tests can use the created repository, but some may need to create more.
885 # Usage: test_create_repo <directory>
886 test_create_repo () {
888 error "bug in the test script: not 1 parameter to test-create-repo"
892 cd "$repo" || error "Cannot setup test environment"
893 "$GIT_EXEC_PATH/git-init" "--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 ||
894 error "cannot run git init -- have you built things yet?"
895 mv .git/hooks .git/hooks-disabled
899 # This function helps on symlink challenged file systems when it is not
900 # important that the file system entry is a symbolic link.
901 # Use test_ln_s_add instead of "ln -s x y && git add y" to add a
902 # symbolic link entry y to the index.
905 if test_have_prereq SYMLINKS
908 git update-index --add "$2"
910 printf '%s' "$1" >"$2" &&
911 ln_s_obj=$(git hash-object -w "$2") &&
912 git update-index --add --cacheinfo 120000 $ln_s_obj "$2" &&
913 # pick up stat info from the file
914 git update-index "$2"
918 # This function writes out its parameters, one per line
919 test_write_lines () {
924 command "$PERL_PATH" "$@" 2>&7
927 # Is the value one of the various ways to spell a boolean true/false?
928 test_normalize_bool () {
929 git -c magic.variable="$1" config --bool magic.variable 2>/dev/null
932 # Given a variable $1, normalize the value of it to one of "true",
933 # "false", or "auto" and store the result to it.
935 # test_tristate GIT_TEST_HTTPD
937 # A variable set to an empty string is set to 'false'.
938 # A variable set to 'false' or 'auto' keeps its value.
939 # Anything else is set to 'true'.
940 # An unset variable defaults to 'auto'.
942 # The last rule is to allow people to set the variable to an empty
943 # string and export it to decline testing the particular feature
944 # for versions both before and after this change. We used to treat
945 # both unset and empty variable as a signal for "do not test" and
946 # took any non-empty string as "please test".
949 if eval "test x\"\${$1+isset}\" = xisset"
956 *) $1=\$(test_normalize_bool \$$1 || echo true) ;;
964 # Exit the test suite, either by skipping all remaining tests or by
965 # exiting with an error. If "$1" is "auto", we then we assume we were
966 # opportunistically trying to set up some tests and we skip. If it is
967 # "true", then we report a failure.
969 # The error/skip message should be given by $2.
971 test_skip_or_die () {
981 error "BUG: test tristate is '$1' (real error: $2)"
985 # The following mingw_* functions obey POSIX shell syntax, but are actually
986 # bash scripts, and are meant to be used only with bash on Windows.
988 # A test_cmp function that treats LF and CRLF equal and avoids to fork
989 # diff when possible.
991 # Read text into shell variables and compare them. If the results
992 # are different, use regular diff to report the difference.
993 local test_cmp_a= test_cmp_b=
995 # When text came from stdin (one argument is '-') we must feed it
997 local stdin_for_diff=
999 # Since it is difficult to detect the difference between an
1000 # empty input file and a failure to read the files, we go straight
1001 # to diff if one of the inputs is empty.
1002 if test -s "$1" && test -s "$2"
1004 # regular case: both files non-empty
1005 mingw_read_file_strip_cr_ test_cmp_a <"$1"
1006 mingw_read_file_strip_cr_ test_cmp_b <"$2"
1007 elif test -s "$1" && test "$2" = -
1009 # read 2nd file from stdin
1010 mingw_read_file_strip_cr_ test_cmp_a <"$1"
1011 mingw_read_file_strip_cr_ test_cmp_b
1012 stdin_for_diff='<<<"$test_cmp_b"'
1013 elif test "$1" = - && test -s "$2"
1015 # read 1st file from stdin
1016 mingw_read_file_strip_cr_ test_cmp_a
1017 mingw_read_file_strip_cr_ test_cmp_b <"$2"
1018 stdin_for_diff='<<<"$test_cmp_a"'
1020 test -n "$test_cmp_a" &&
1021 test -n "$test_cmp_b" &&
1022 test "$test_cmp_a" = "$test_cmp_b" ||
1023 eval "diff -u \"\$@\" $stdin_for_diff"
1026 # $1 is the name of the shell variable to fill in
1027 mingw_read_file_strip_cr_ () {
1028 # Read line-wise using LF as the line separator
1029 # and use IFS to strip CR.
1033 if IFS=$'\r' read -r -d $'\n' line
1038 # we get here at EOF, but also if the last line
1039 # was not terminated by LF; in the latter case,
1040 # some text was read
1047 eval "$1=\$$1\$line"
1051 # Like "env FOO=BAR some-program", but run inside a subshell, which means
1052 # it also works for shell functions (though those functions cannot impact
1053 # the environment outside of the test_env invocation).
1060 eval "${1%%=*}=\${1#*=}"
1061 eval "export ${1%%=*}"
1073 # Returns true if the numeric exit code in "$2" represents the expected signal
1074 # in "$1". Signals should be given numerically.
1075 test_match_signal () {
1076 if test "$2" = "$((128 + $1))"
1080 elif test "$2" = "$((256 + $1))"
1088 # Read up to "$1" bytes (or to EOF) from stdin and write them to stdout.
1089 test_copy_bytes () {
1094 my $nread = sysread(STDIN, $s, $len);
1095 die "cannot read: $!" unless defined($nread);
1103 # run "$@" inside a non-git directory
1110 GIT_CEILING_DIRECTORIES=$(pwd) &&
1111 export GIT_CEILING_DIRECTORIES &&
1117 # convert stdin to pktline representation; note that empty input becomes an
1118 # empty packet, not a flush packet (for that you can just print 0000 yourself).
1120 cat >packetize.tmp &&
1121 len=$(wc -c <packetize.tmp) &&
1122 printf '%04x%s' "$(($len + 4))" &&
1123 cat packetize.tmp &&
1127 # Parse the input as a series of pktlines, writing the result to stdout.
1128 # Sideband markers are removed automatically, and the output is routed to
1129 # stderr if appropriate.
1131 # NUL bytes are converted to "\\0" for ease of parsing with text tools.
1134 while (read(STDIN, $len, 4) == 4) {
1135 if ($len eq "0000") {
1138 read(STDIN, $buf, hex($len) - 4);
1140 if ($buf =~ s/^[\x2\x3]//) {