Merge branch 'rs/child-process-init'
[git] / t / test-lib.sh
1 # Test framework for git.  See t/README for usage.
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 #
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 2 of the License, or
8 # (at your option) any later version.
9 #
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 # GNU General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with this program.  If not, see http://www.gnu.org/licenses/ .
17
18 # Keep the original TERM for say_color
19 ORIGINAL_TERM=$TERM
20
21 # Test the binaries we have just built.  The tests are kept in
22 # t/ subdirectory and are run in 'trash directory' subdirectory.
23 if test -z "$TEST_DIRECTORY"
24 then
25         # We allow tests to override this, in case they want to run tests
26         # outside of t/, e.g. for running tests on the test library
27         # itself.
28         TEST_DIRECTORY=$(pwd)
29 else
30         # ensure that TEST_DIRECTORY is an absolute path so that it
31         # is valid even if the current working directory is changed
32         TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
33 fi
34 if test -z "$TEST_OUTPUT_DIRECTORY"
35 then
36         # Similarly, override this to store the test-results subdir
37         # elsewhere
38         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
39 fi
40 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
41
42 ################################################################
43 # It appears that people try to run tests without building...
44 "$GIT_BUILD_DIR/git" >/dev/null
45 if test $? != 1
46 then
47         echo >&2 'error: you do not seem to have built git yet.'
48         exit 1
49 fi
50
51 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
52 export PERL_PATH SHELL_PATH
53
54 # if --tee was passed, write the output not only to the terminal, but
55 # additionally to the file test-results/$BASENAME.out, too.
56 case "$GIT_TEST_TEE_STARTED, $* " in
57 done,*)
58         # do not redirect again
59         ;;
60 *' --tee '*|*' --va'*)
61         mkdir -p "$TEST_OUTPUT_DIRECTORY/test-results"
62         BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
63         (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
64          echo $? > $BASE.exit) | tee $BASE.out
65         test "$(cat $BASE.exit)" = 0
66         exit
67         ;;
68 esac
69
70 # For repeatability, reset the environment to known value.
71 LANG=C
72 LC_ALL=C
73 PAGER=cat
74 TZ=UTC
75 TERM=dumb
76 export LANG LC_ALL PAGER TERM TZ
77 EDITOR=:
78 # A call to "unset" with no arguments causes at least Solaris 10
79 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
80 # deriving from the command substitution clustered with the other
81 # ones.
82 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
83         my @env = keys %ENV;
84         my $ok = join("|", qw(
85                 TRACE
86                 DEBUG
87                 USE_LOOKUP
88                 TEST
89                 .*_TEST
90                 PROVE
91                 VALGRIND
92                 UNZIP
93                 PERF_
94                 CURL_VERBOSE
95         ));
96         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
97         print join("\n", @vars);
98 ')
99 unset XDG_CONFIG_HOME
100 unset GITPERLLIB
101 GIT_AUTHOR_EMAIL=author@example.com
102 GIT_AUTHOR_NAME='A U Thor'
103 GIT_COMMITTER_EMAIL=committer@example.com
104 GIT_COMMITTER_NAME='C O Mitter'
105 GIT_MERGE_VERBOSITY=5
106 GIT_MERGE_AUTOEDIT=no
107 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
108 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
109 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
110 export EDITOR
111
112 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
113 GIT_TRACE_BARE=1
114 export GIT_TRACE_BARE
115
116 if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
117 then
118         GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
119         export GIT_INDEX_VERSION
120 fi
121
122 # Add libc MALLOC and MALLOC_PERTURB test
123 # only if we are not executing the test with valgrind
124 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
125    test -n "$TEST_NO_MALLOC_CHECK"
126 then
127         setup_malloc_check () {
128                 : nothing
129         }
130         teardown_malloc_check () {
131                 : nothing
132         }
133 else
134         setup_malloc_check () {
135                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
136                 export MALLOC_CHECK_ MALLOC_PERTURB_
137         }
138         teardown_malloc_check () {
139                 unset MALLOC_CHECK_ MALLOC_PERTURB_
140         }
141 fi
142
143 # Protect ourselves from common misconfiguration to export
144 # CDPATH into the environment
145 unset CDPATH
146
147 unset GREP_OPTIONS
148 unset UNZIP
149
150 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
151 1|2|true)
152         echo "* warning: Some tests will not work if GIT_TRACE" \
153                 "is set as to trace on STDERR ! *"
154         echo "* warning: Please set GIT_TRACE to something" \
155                 "other than 1, 2 or true ! *"
156         ;;
157 esac
158
159 # Convenience
160 #
161 # A regexp to match 5 and 40 hexdigits
162 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
163 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
164
165 # Zero SHA-1
166 _z40=0000000000000000000000000000000000000000
167
168 # Line feed
169 LF='
170 '
171
172 export _x05 _x40 _z40 LF
173
174 # Each test should start with something like this, after copyright notices:
175 #
176 # test_description='Description of this test...
177 # This test checks if command xyzzy does the right thing...
178 # '
179 # . ./test-lib.sh
180 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
181                 TERM=$ORIGINAL_TERM &&
182                 export TERM &&
183                 [ -t 1 ] &&
184                 tput bold >/dev/null 2>&1 &&
185                 tput setaf 1 >/dev/null 2>&1 &&
186                 tput sgr0 >/dev/null 2>&1
187         ) &&
188         color=t
189
190 while test "$#" -ne 0
191 do
192         case "$1" in
193         -d|--d|--de|--deb|--debu|--debug)
194                 debug=t; shift ;;
195         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
196                 immediate=t; shift ;;
197         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
198                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
199         -r)
200                 shift; test "$#" -ne 0 || {
201                         echo 'error: -r requires an argument' >&2;
202                         exit 1;
203                 }
204                 run_list=$1; shift ;;
205         --run=*)
206                 run_list=$(expr "z$1" : 'z[^=]*=\(.*\)'); shift ;;
207         -h|--h|--he|--hel|--help)
208                 help=t; shift ;;
209         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
210                 verbose=t; shift ;;
211         --verbose-only=*)
212                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
213                 shift ;;
214         -q|--q|--qu|--qui|--quie|--quiet)
215                 # Ignore --quiet under a TAP::Harness. Saying how many tests
216                 # passed without the ok/not ok details is always an error.
217                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
218         --with-dashes)
219                 with_dashes=t; shift ;;
220         --no-color)
221                 color=; shift ;;
222         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
223                 valgrind=memcheck
224                 shift ;;
225         --valgrind=*)
226                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
227                 shift ;;
228         --valgrind-only=*)
229                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
230                 shift ;;
231         --tee)
232                 shift ;; # was handled already
233         --root=*)
234                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
235                 shift ;;
236         *)
237                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
238         esac
239 done
240
241 if test -n "$valgrind_only"
242 then
243         test -z "$valgrind" && valgrind=memcheck
244         test -z "$verbose" && verbose_only="$valgrind_only"
245 elif test -n "$valgrind"
246 then
247         verbose=t
248 fi
249
250 if test -n "$color"
251 then
252         say_color () {
253                 (
254                 TERM=$ORIGINAL_TERM
255                 export TERM
256                 case "$1" in
257                 error)
258                         tput bold; tput setaf 1;; # bold red
259                 skip)
260                         tput setaf 4;; # blue
261                 warn)
262                         tput setaf 3;; # brown/yellow
263                 pass)
264                         tput setaf 2;; # green
265                 info)
266                         tput setaf 6;; # cyan
267                 *)
268                         test -n "$quiet" && return;;
269                 esac
270                 shift
271                 printf "%s" "$*"
272                 tput sgr0
273                 echo
274                 )
275         }
276 else
277         say_color() {
278                 test -z "$1" && test -n "$quiet" && return
279                 shift
280                 printf "%s\n" "$*"
281         }
282 fi
283
284 error () {
285         say_color error "error: $*"
286         GIT_EXIT_OK=t
287         exit 1
288 }
289
290 say () {
291         say_color info "$*"
292 }
293
294 test "${test_description}" != "" ||
295 error "Test script did not set test_description."
296
297 if test "$help" = "t"
298 then
299         printf '%s\n' "$test_description"
300         exit 0
301 fi
302
303 exec 5>&1
304 exec 6<&0
305 if test "$verbose" = "t"
306 then
307         exec 4>&2 3>&1
308 else
309         exec 4>/dev/null 3>/dev/null
310 fi
311
312 test_failure=0
313 test_count=0
314 test_fixed=0
315 test_broken=0
316 test_success=0
317
318 test_external_has_tap=0
319
320 die () {
321         code=$?
322         if test -n "$GIT_EXIT_OK"
323         then
324                 exit $code
325         else
326                 echo >&5 "FATAL: Unexpected exit with code $code"
327                 exit 1
328         fi
329 }
330
331 GIT_EXIT_OK=
332 trap 'die' EXIT
333
334 # The user-facing functions are loaded from a separate file so that
335 # test_perf subshells can have them too
336 . "$TEST_DIRECTORY/test-lib-functions.sh"
337
338 # You are not expected to call test_ok_ and test_failure_ directly, use
339 # the test_expect_* functions instead.
340
341 test_ok_ () {
342         test_success=$(($test_success + 1))
343         say_color "" "ok $test_count - $@"
344 }
345
346 test_failure_ () {
347         test_failure=$(($test_failure + 1))
348         say_color error "not ok $test_count - $1"
349         shift
350         printf '%s\n' "$*" | sed -e 's/^/#      /'
351         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
352 }
353
354 test_known_broken_ok_ () {
355         test_fixed=$(($test_fixed+1))
356         say_color error "ok $test_count - $@ # TODO known breakage vanished"
357 }
358
359 test_known_broken_failure_ () {
360         test_broken=$(($test_broken+1))
361         say_color warn "not ok $test_count - $@ # TODO known breakage"
362 }
363
364 test_debug () {
365         test "$debug" = "" || eval "$1"
366 }
367
368 match_pattern_list () {
369         arg="$1"
370         shift
371         test -z "$*" && return 1
372         for pattern_
373         do
374                 case "$arg" in
375                 $pattern_)
376                         return 0
377                 esac
378         done
379         return 1
380 }
381
382 match_test_selector_list () {
383         title="$1"
384         shift
385         arg="$1"
386         shift
387         test -z "$1" && return 0
388
389         # Both commas and whitespace are accepted as separators.
390         OLDIFS=$IFS
391         IFS='   ,'
392         set -- $1
393         IFS=$OLDIFS
394
395         # If the first selector is negative we include by default.
396         include=
397         case "$1" in
398                 !*) include=t ;;
399         esac
400
401         for selector
402         do
403                 orig_selector=$selector
404
405                 positive=t
406                 case "$selector" in
407                         !*)
408                                 positive=
409                                 selector=${selector##?}
410                                 ;;
411                 esac
412
413                 test -z "$selector" && continue
414
415                 case "$selector" in
416                         *-*)
417                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
418                                 then
419                                         echo "error: $title: invalid non-numeric in range" \
420                                                 "start: '$orig_selector'" >&2
421                                         exit 1
422                                 fi
423                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
424                                 then
425                                         echo "error: $title: invalid non-numeric in range" \
426                                                 "end: '$orig_selector'" >&2
427                                         exit 1
428                                 fi
429                                 ;;
430                         *)
431                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
432                                 then
433                                         echo "error: $title: invalid non-numeric in test" \
434                                                 "selector: '$orig_selector'" >&2
435                                         exit 1
436                                 fi
437                 esac
438
439                 # Short cut for "obvious" cases
440                 test -z "$include" && test -z "$positive" && continue
441                 test -n "$include" && test -n "$positive" && continue
442
443                 case "$selector" in
444                         -*)
445                                 if test $arg -le ${selector#-}
446                                 then
447                                         include=$positive
448                                 fi
449                                 ;;
450                         *-)
451                                 if test $arg -ge ${selector%-}
452                                 then
453                                         include=$positive
454                                 fi
455                                 ;;
456                         *-*)
457                                 if test ${selector%%-*} -le $arg \
458                                         && test $arg -le ${selector#*-}
459                                 then
460                                         include=$positive
461                                 fi
462                                 ;;
463                         *)
464                                 if test $arg -eq $selector
465                                 then
466                                         include=$positive
467                                 fi
468                                 ;;
469                 esac
470         done
471
472         test -n "$include"
473 }
474
475 maybe_teardown_verbose () {
476         test -z "$verbose_only" && return
477         exec 4>/dev/null 3>/dev/null
478         verbose=
479 }
480
481 last_verbose=t
482 maybe_setup_verbose () {
483         test -z "$verbose_only" && return
484         if match_pattern_list $test_count $verbose_only
485         then
486                 exec 4>&2 3>&1
487                 # Emit a delimiting blank line when going from
488                 # non-verbose to verbose.  Within verbose mode the
489                 # delimiter is printed by test_expect_*.  The choice
490                 # of the initial $last_verbose is such that before
491                 # test 1, we do not print it.
492                 test -z "$last_verbose" && echo >&3 ""
493                 verbose=t
494         else
495                 exec 4>/dev/null 3>/dev/null
496                 verbose=
497         fi
498         last_verbose=$verbose
499 }
500
501 maybe_teardown_valgrind () {
502         test -z "$GIT_VALGRIND" && return
503         GIT_VALGRIND_ENABLED=
504 }
505
506 maybe_setup_valgrind () {
507         test -z "$GIT_VALGRIND" && return
508         if test -z "$valgrind_only"
509         then
510                 GIT_VALGRIND_ENABLED=t
511                 return
512         fi
513         GIT_VALGRIND_ENABLED=
514         if match_pattern_list $test_count $valgrind_only
515         then
516                 GIT_VALGRIND_ENABLED=t
517         fi
518 }
519
520 test_eval_ () {
521         # This is a separate function because some tests use
522         # "return" to end a test_expect_success block early.
523         eval </dev/null >&3 2>&4 "$*"
524 }
525
526 test_run_ () {
527         test_cleanup=:
528         expecting_failure=$2
529         setup_malloc_check
530         test_eval_ "$1"
531         eval_ret=$?
532         teardown_malloc_check
533
534         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
535         then
536                 setup_malloc_check
537                 test_eval_ "$test_cleanup"
538                 teardown_malloc_check
539         fi
540         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
541         then
542                 echo ""
543         fi
544         return "$eval_ret"
545 }
546
547 test_start_ () {
548         test_count=$(($test_count+1))
549         maybe_setup_verbose
550         maybe_setup_valgrind
551 }
552
553 test_finish_ () {
554         echo >&3 ""
555         maybe_teardown_valgrind
556         maybe_teardown_verbose
557 }
558
559 test_skip () {
560         to_skip=
561         skipped_reason=
562         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
563         then
564                 to_skip=t
565                 skipped_reason="GIT_SKIP_TESTS"
566         fi
567         if test -z "$to_skip" && test -n "$test_prereq" &&
568            ! test_have_prereq "$test_prereq"
569         then
570                 to_skip=t
571
572                 of_prereq=
573                 if test "$missing_prereq" != "$test_prereq"
574                 then
575                         of_prereq=" of $test_prereq"
576                 fi
577                 skipped_reason="missing $missing_prereq${of_prereq}"
578         fi
579         if test -z "$to_skip" && test -n "$run_list" &&
580                 ! match_test_selector_list '--run' $test_count "$run_list"
581         then
582                 to_skip=t
583                 skipped_reason="--run"
584         fi
585
586         case "$to_skip" in
587         t)
588                 say_color skip >&3 "skipping test: $@"
589                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
590                 : true
591                 ;;
592         *)
593                 false
594                 ;;
595         esac
596 }
597
598 # stub; perf-lib overrides it
599 test_at_end_hook_ () {
600         :
601 }
602
603 test_done () {
604         GIT_EXIT_OK=t
605
606         if test -z "$HARNESS_ACTIVE"
607         then
608                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
609                 mkdir -p "$test_results_dir"
610                 base=${0##*/}
611                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
612
613                 cat >>"$test_results_path" <<-EOF
614                 total $test_count
615                 success $test_success
616                 fixed $test_fixed
617                 broken $test_broken
618                 failed $test_failure
619
620                 EOF
621         fi
622
623         if test "$test_fixed" != 0
624         then
625                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
626         fi
627         if test "$test_broken" != 0
628         then
629                 say_color warn "# still have $test_broken known breakage(s)"
630         fi
631         if test "$test_broken" != 0 || test "$test_fixed" != 0
632         then
633                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
634                 msg="remaining $test_remaining test(s)"
635         else
636                 test_remaining=$test_count
637                 msg="$test_count test(s)"
638         fi
639         case "$test_failure" in
640         0)
641                 # Maybe print SKIP message
642                 if test -n "$skip_all" && test $test_count -gt 0
643                 then
644                         error "Can't use skip_all after running some tests"
645                 fi
646                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
647
648                 if test $test_external_has_tap -eq 0
649                 then
650                         if test $test_remaining -gt 0
651                         then
652                                 say_color pass "# passed all $msg"
653                         fi
654                         say "1..$test_count$skip_all"
655                 fi
656
657                 test -d "$remove_trash" &&
658                 cd "$(dirname "$remove_trash")" &&
659                 rm -rf "$(basename "$remove_trash")"
660
661                 test_at_end_hook_
662
663                 exit 0 ;;
664
665         *)
666                 if test $test_external_has_tap -eq 0
667                 then
668                         say_color error "# failed $test_failure among $msg"
669                         say "1..$test_count"
670                 fi
671
672                 exit 1 ;;
673
674         esac
675 }
676
677 if test -n "$valgrind"
678 then
679         make_symlink () {
680                 test -h "$2" &&
681                 test "$1" = "$(readlink "$2")" || {
682                         # be super paranoid
683                         if mkdir "$2".lock
684                         then
685                                 rm -f "$2" &&
686                                 ln -s "$1" "$2" &&
687                                 rm -r "$2".lock
688                         else
689                                 while test -d "$2".lock
690                                 do
691                                         say "Waiting for lock on $2."
692                                         sleep 1
693                                 done
694                         fi
695                 }
696         }
697
698         make_valgrind_symlink () {
699                 # handle only executables, unless they are shell libraries that
700                 # need to be in the exec-path.
701                 test -x "$1" ||
702                 test "# " = "$(head -c 2 <"$1")" ||
703                 return;
704
705                 base=$(basename "$1")
706                 symlink_target=$GIT_BUILD_DIR/$base
707                 # do not override scripts
708                 if test -x "$symlink_target" &&
709                     test ! -d "$symlink_target" &&
710                     test "#!" != "$(head -c 2 < "$symlink_target")"
711                 then
712                         symlink_target=../valgrind.sh
713                 fi
714                 case "$base" in
715                 *.sh|*.perl)
716                         symlink_target=../unprocessed-script
717                 esac
718                 # create the link, or replace it if it is out of date
719                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
720         }
721
722         # override all git executables in TEST_DIRECTORY/..
723         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
724         mkdir -p "$GIT_VALGRIND"/bin
725         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
726         do
727                 make_valgrind_symlink $file
728         done
729         # special-case the mergetools loadables
730         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
731         OLDIFS=$IFS
732         IFS=:
733         for path in $PATH
734         do
735                 ls "$path"/git-* 2> /dev/null |
736                 while read file
737                 do
738                         make_valgrind_symlink "$file"
739                 done
740         done
741         IFS=$OLDIFS
742         PATH=$GIT_VALGRIND/bin:$PATH
743         GIT_EXEC_PATH=$GIT_VALGRIND/bin
744         export GIT_VALGRIND
745         GIT_VALGRIND_MODE="$valgrind"
746         export GIT_VALGRIND_MODE
747         GIT_VALGRIND_ENABLED=t
748         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
749         export GIT_VALGRIND_ENABLED
750 elif test -n "$GIT_TEST_INSTALLED"
751 then
752         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
753         error "Cannot run git from $GIT_TEST_INSTALLED."
754         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
755         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
756 else # normal case, use ../bin-wrappers only unless $with_dashes:
757         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
758         if ! test -x "$git_bin_dir/git"
759         then
760                 if test -z "$with_dashes"
761                 then
762                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
763                 fi
764                 with_dashes=t
765         fi
766         PATH="$git_bin_dir:$PATH"
767         GIT_EXEC_PATH=$GIT_BUILD_DIR
768         if test -n "$with_dashes"
769         then
770                 PATH="$GIT_BUILD_DIR:$PATH"
771         fi
772 fi
773 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
774 GIT_CONFIG_NOSYSTEM=1
775 GIT_ATTR_NOSYSTEM=1
776 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
777
778 if test -z "$GIT_TEST_CMP"
779 then
780         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
781         then
782                 GIT_TEST_CMP="$DIFF -c"
783         else
784                 GIT_TEST_CMP="$DIFF -u"
785         fi
786 fi
787
788 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
789 export GITPERLLIB
790 test -d "$GIT_BUILD_DIR"/templates/blt || {
791         error "You haven't built things yet, have you?"
792 }
793
794 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
795 then
796         echo >&2 'You need to build test-chmtime:'
797         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
798         exit 1
799 fi
800
801 # Test repository
802 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
803 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
804 case "$TRASH_DIRECTORY" in
805 /*) ;; # absolute path is good
806  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
807 esac
808 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
809 rm -fr "$TRASH_DIRECTORY" || {
810         GIT_EXIT_OK=t
811         echo >&5 "FATAL: Cannot prepare test area"
812         exit 1
813 }
814
815 HOME="$TRASH_DIRECTORY"
816 export HOME
817
818 if test -z "$TEST_NO_CREATE_REPO"
819 then
820         test_create_repo "$TRASH_DIRECTORY"
821 else
822         mkdir -p "$TRASH_DIRECTORY"
823 fi
824 # Use -P to resolve symlinks in our working directory so that the cwd
825 # in subprocesses like git equals our $PWD (for pathname comparisons).
826 cd -P "$TRASH_DIRECTORY" || exit 1
827
828 this_test=${0##*/}
829 this_test=${this_test%%-*}
830 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
831 then
832         say_color info >&3 "skipping test $this_test altogether"
833         skip_all="skip all tests in $this_test"
834         test_done
835 fi
836
837 # Provide an implementation of the 'yes' utility
838 yes () {
839         if test $# = 0
840         then
841                 y=y
842         else
843                 y="$*"
844         fi
845
846         while echo "$y"
847         do
848                 :
849         done
850 }
851
852 # Fix some commands on Windows
853 case $(uname -s) in
854 *MINGW*)
855         # Windows has its own (incompatible) sort and find
856         sort () {
857                 /usr/bin/sort "$@"
858         }
859         find () {
860                 /usr/bin/find "$@"
861         }
862         sum () {
863                 md5sum "$@"
864         }
865         # git sees Windows-style pwd
866         pwd () {
867                 builtin pwd -W
868         }
869         # no POSIX permissions
870         # backslashes in pathspec are converted to '/'
871         # exec does not inherit the PID
872         test_set_prereq MINGW
873         test_set_prereq SED_STRIPS_CR
874         test_set_prereq GREP_STRIPS_CR
875         GIT_TEST_CMP=mingw_test_cmp
876         ;;
877 *CYGWIN*)
878         test_set_prereq POSIXPERM
879         test_set_prereq EXECKEEPSPID
880         test_set_prereq CYGWIN
881         test_set_prereq SED_STRIPS_CR
882         test_set_prereq GREP_STRIPS_CR
883         ;;
884 *)
885         test_set_prereq POSIXPERM
886         test_set_prereq BSLASHPSPEC
887         test_set_prereq EXECKEEPSPID
888         ;;
889 esac
890
891 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
892 test -z "$NO_PERL" && test_set_prereq PERL
893 test -z "$NO_PYTHON" && test_set_prereq PYTHON
894 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
895 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
896
897 # Can we rely on git's output in the C locale?
898 if test -n "$GETTEXT_POISON"
899 then
900         GIT_GETTEXT_POISON=YesPlease
901         export GIT_GETTEXT_POISON
902         test_set_prereq GETTEXT_POISON
903 else
904         test_set_prereq C_LOCALE_OUTPUT
905 fi
906
907 # Use this instead of test_cmp to compare files that contain expected and
908 # actual output from git commands that can be translated.  When running
909 # under GETTEXT_POISON this pretends that the command produced expected
910 # results.
911 test_i18ncmp () {
912         test -n "$GETTEXT_POISON" || test_cmp "$@"
913 }
914
915 # Use this instead of "grep expected-string actual" to see if the
916 # output from a git command that can be translated either contains an
917 # expected string, or does not contain an unwanted one.  When running
918 # under GETTEXT_POISON this pretends that the command produced expected
919 # results.
920 test_i18ngrep () {
921         if test -n "$GETTEXT_POISON"
922         then
923             : # pretend success
924         elif test "x!" = "x$1"
925         then
926                 shift
927                 ! grep "$@"
928         else
929                 grep "$@"
930         fi
931 }
932
933 test_lazy_prereq PIPE '
934         # test whether the filesystem supports FIFOs
935         case $(uname -s) in
936         CYGWIN*)
937                 false
938                 ;;
939         *)
940                 rm -f testfifo && mkfifo testfifo
941                 ;;
942         esac
943 '
944
945 test_lazy_prereq SYMLINKS '
946         # test whether the filesystem supports symbolic links
947         ln -s x y && test -h y
948 '
949
950 test_lazy_prereq FILEMODE '
951         test "$(git config --bool core.filemode)" = true
952 '
953
954 test_lazy_prereq CASE_INSENSITIVE_FS '
955         echo good >CamelCase &&
956         echo bad >camelcase &&
957         test "$(cat CamelCase)" != good
958 '
959
960 test_lazy_prereq UTF8_NFD_TO_NFC '
961         # check whether FS converts nfd unicode to nfc
962         auml=$(printf "\303\244")
963         aumlcdiar=$(printf "\141\314\210")
964         >"$auml" &&
965         case "$(echo *)" in
966         "$aumlcdiar")
967                 true ;;
968         *)
969                 false ;;
970         esac
971 '
972
973 test_lazy_prereq AUTOIDENT '
974         sane_unset GIT_AUTHOR_NAME &&
975         sane_unset GIT_AUTHOR_EMAIL &&
976         git var GIT_AUTHOR_IDENT
977 '
978
979 test_lazy_prereq EXPENSIVE '
980         test -n "$GIT_TEST_LONG"
981 '
982
983 test_lazy_prereq USR_BIN_TIME '
984         test -x /usr/bin/time
985 '
986
987 # When the tests are run as root, permission tests will report that
988 # things are writable when they shouldn't be.
989 test -w / || test_set_prereq SANITY
990
991 GIT_UNZIP=${GIT_UNZIP:-unzip}
992 test_lazy_prereq UNZIP '
993         "$GIT_UNZIP" -v
994         test $? -ne 127
995 '