t/test-lib.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 # if --tee was passed, write the output not only to the terminal, but
   7 # additionally to the file test-results/$BASENAME.out, too.
   8 case "$GIT_TEST_TEE_STARTED, $* " in
   9 done,*)
  10         # do not redirect again
  11         ;;
  12 *' --tee '*|*' --va'*)
  13         mkdir -p test-results
  14         BASE=test-results/$(basename "$0" .sh)
  15         (GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
  16          echo $? > $BASE.exit) | tee $BASE.out
  17         test "$(cat $BASE.exit)" = 0
  18         exit
  19         ;;
  20 esac
  21
  22 # Keep the original TERM for say_color
  23 ORIGINAL_TERM=$TERM
  24
  25 # For repeatability, reset the environment to known value.
  26 LANG=C
  27 LC_ALL=C
  28 PAGER=cat
  29 TZ=UTC
  30 TERM=dumb
  31 export LANG LC_ALL PAGER TERM TZ
  32 EDITOR=:
  33 unset VISUAL
  34 unset GIT_EDITOR
  35 unset AUTHOR_DATE
  36 unset AUTHOR_EMAIL
  37 unset AUTHOR_NAME
  38 unset COMMIT_AUTHOR_EMAIL
  39 unset COMMIT_AUTHOR_NAME
  40 unset EMAIL
  41 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  42 unset GIT_AUTHOR_DATE
  43 GIT_AUTHOR_EMAIL=author@example.com
  44 GIT_AUTHOR_NAME='A U Thor'
  45 unset GIT_COMMITTER_DATE
  46 GIT_COMMITTER_EMAIL=committer@example.com
  47 GIT_COMMITTER_NAME='C O Mitter'
  48 unset GIT_DIFF_OPTS
  49 unset GIT_DIR
  50 unset GIT_WORK_TREE
  51 unset GIT_EXTERNAL_DIFF
  52 unset GIT_INDEX_FILE
  53 unset GIT_OBJECT_DIRECTORY
  54 unset GIT_CEILING_DIRECTORIES
  55 unset SHA1_FILE_DIRECTORIES
  56 unset SHA1_FILE_DIRECTORY
  57 unset GIT_NOTES_REF
  58 unset GIT_NOTES_DISPLAY_REF
  59 GIT_MERGE_VERBOSITY=5
  60 export GIT_MERGE_VERBOSITY
  61 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  62 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  63 export EDITOR
  64 GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
  65
  66 # Protect ourselves from common misconfiguration to export
  67 # CDPATH into the environment
  68 unset CDPATH
  69
  70 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  71         1|2|true)
  72                 echo "* warning: Some tests will not work if GIT_TRACE" \
  73                         "is set as to trace on STDERR ! *"
  74                 echo "* warning: Please set GIT_TRACE to something" \
  75                         "other than 1, 2 or true ! *"
  76                 ;;
  77 esac
  78
  79 # Each test should start with something like this, after copyright notices:
  80 #
  81 # test_description='Description of this test...
  82 # This test checks if command xyzzy does the right thing...
  83 # '
  84 # . ./test-lib.sh
  85 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
  86                 TERM=$ORIGINAL_TERM &&
  87                 export TERM &&
  88                 [ -t 1 ] &&
  89                 tput bold >/dev/null 2>&1 &&
  90                 tput setaf 1 >/dev/null 2>&1 &&
  91                 tput sgr0 >/dev/null 2>&1
  92         ) &&
  93         color=t
  94
  95 while test "$#" -ne 0
  96 do
  97         case "$1" in
  98         -d|--d|--de|--deb|--debu|--debug)
  99                 debug=t; shift ;;
 100         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 101                 immediate=t; shift ;;
 102         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 103                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 104         -h|--h|--he|--hel|--help)
 105                 help=t; shift ;;
 106         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 107                 verbose=t; shift ;;
 108         -q|--q|--qu|--qui|--quie|--quiet)
 109                 quiet=t; shift ;;
 110         --with-dashes)
 111                 with_dashes=t; shift ;;
 112         --no-color)
 113                 color=; shift ;;
 114         --no-python)
 115                 # noop now...
 116                 shift ;;
 117         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 118                 valgrind=t; verbose=t; shift ;;
 119         --tee)
 120                 shift ;; # was handled already
 121         --root=*)
 122                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 123                 shift ;;
 124         *)
 125                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 126         esac
 127 done
 128
 129 if test -n "$color"; then
 130         say_color () {
 131                 (
 132                 TERM=$ORIGINAL_TERM
 133                 export TERM
 134                 case "$1" in
 135                         error) tput bold; tput setaf 1;; # bold red
 136                         skip)  tput bold; tput setaf 2;; # bold green
 137                         pass)  tput setaf 2;;            # green
 138                         info)  tput setaf 3;;            # brown
 139                         *) test -n "$quiet" && return;;
 140                 esac
 141                 shift
 142                 printf "* %s" "$*"
 143                 tput sgr0
 144                 echo
 145                 )
 146         }
 147 else
 148         say_color() {
 149                 test -z "$1" && test -n "$quiet" && return
 150                 shift
 151                 echo "* $*"
 152         }
 153 fi
 154
 155 error () {
 156         say_color error "error: $*"
 157         GIT_EXIT_OK=t
 158         exit 1
 159 }
 160
 161 say () {
 162         say_color info "$*"
 163 }
 164
 165 test "${test_description}" != "" ||
 166 error "Test script did not set test_description."
 167
 168 if test "$help" = "t"
 169 then
 170         echo "$test_description"
 171         exit 0
 172 fi
 173
 174 exec 5>&1
 175 if test "$verbose" = "t"
 176 then
 177         exec 4>&2 3>&1
 178 else
 179         exec 4>/dev/null 3>/dev/null
 180 fi
 181
 182 test_failure=0
 183 test_count=0
 184 test_fixed=0
 185 test_broken=0
 186 test_success=0
 187
 188 die () {
 189         code=$?
 190         if test -n "$GIT_EXIT_OK"
 191         then
 192                 exit $code
 193         else
 194                 echo >&5 "FATAL: Unexpected exit with code $code"
 195                 exit 1
 196         fi
 197 }
 198
 199 GIT_EXIT_OK=
 200 trap 'die' EXIT
 201
 202 # The semantics of the editor variables are that of invoking
 203 # sh -c "$EDITOR \"$@\"" files ...
 204 #
 205 # If our trash directory contains shell metacharacters, they will be
 206 # interpreted if we just set $EDITOR directly, so do a little dance with
 207 # environment variables to work around this.
 208 #
 209 # In particular, quoting isn't enough, as the path may contain the same quote
 210 # that we're using.
 211 test_set_editor () {
 212         FAKE_EDITOR="$1"
 213         export FAKE_EDITOR
 214         EDITOR='"$FAKE_EDITOR"'
 215         export EDITOR
 216 }
 217
 218 test_decode_color () {
 219         sed     -e 's/.\[1m/<WHITE>/g' \
 220                 -e 's/.\[31m/<RED>/g' \
 221                 -e 's/.\[32m/<GREEN>/g' \
 222                 -e 's/.\[33m/<YELLOW>/g' \
 223                 -e 's/.\[34m/<BLUE>/g' \
 224                 -e 's/.\[35m/<MAGENTA>/g' \
 225                 -e 's/.\[36m/<CYAN>/g' \
 226                 -e 's/.\[m/<RESET>/g'
 227 }
 228
 229 test_tick () {
 230         if test -z "${test_tick+set}"
 231         then
 232                 test_tick=1112911993
 233         else
 234                 test_tick=$(($test_tick + 60))
 235         fi
 236         GIT_COMMITTER_DATE="$test_tick -0700"
 237         GIT_AUTHOR_DATE="$test_tick -0700"
 238         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 239 }
 240
 241 # Call test_commit with the arguments "<message> [<file> [<contents>]]"
 242 #
 243 # This will commit a file with the given contents and the given commit
 244 # message.  It will also add a tag with <message> as name.
 245 #
 246 # Both <file> and <contents> default to <message>.
 247
 248 test_commit () {
 249         file=${2:-"$1.t"}
 250         echo "${3-$1}" > "$file" &&
 251         git add "$file" &&
 252         test_tick &&
 253         git commit -m "$1" &&
 254         git tag "$1"
 255 }
 256
 257 # Call test_merge with the arguments "<message> <commit>", where <commit>
 258 # can be a tag pointing to the commit-to-merge.
 259
 260 test_merge () {
 261         test_tick &&
 262         git merge -m "$1" "$2" &&
 263         git tag "$1"
 264 }
 265
 266 # This function helps systems where core.filemode=false is set.
 267 # Use it instead of plain 'chmod +x' to set or unset the executable bit
 268 # of a file in the working directory and add it to the index.
 269
 270 test_chmod () {
 271         chmod "$@" &&
 272         git update-index --add "--chmod=$@"
 273 }
 274
 275 # Use test_set_prereq to tell that a particular prerequisite is available.
 276 # The prerequisite can later be checked for in two ways:
 277 #
 278 # - Explicitly using test_have_prereq.
 279 #
 280 # - Implicitly by specifying the prerequisite tag in the calls to
 281 #   test_expect_{success,failure,code}.
 282 #
 283 # The single parameter is the prerequisite tag (a simple word, in all
 284 # capital letters by convention).
 285
 286 test_set_prereq () {
 287         satisfied="$satisfied$1 "
 288 }
 289 satisfied=" "
 290
 291 test_have_prereq () {
 292         case $satisfied in
 293         *" $1 "*)
 294                 : yes, have it ;;
 295         *)
 296                 ! : nope ;;
 297         esac
 298 }
 299
 300 # You are not expected to call test_ok_ and test_failure_ directly, use
 301 # the text_expect_* functions instead.
 302
 303 test_ok_ () {
 304         test_success=$(($test_success + 1))
 305         say_color "" "  ok $test_count: $@"
 306 }
 307
 308 test_failure_ () {
 309         test_failure=$(($test_failure + 1))
 310         say_color error "FAIL $test_count: $1"
 311         shift
 312         echo "$@" | sed -e 's/^/        /'
 313         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 314 }
 315
 316 test_known_broken_ok_ () {
 317         test_fixed=$(($test_fixed+1))
 318         say_color "" "  FIXED $test_count: $@"
 319 }
 320
 321 test_known_broken_failure_ () {
 322         test_broken=$(($test_broken+1))
 323         say_color skip "  still broken $test_count: $@"
 324 }
 325
 326 test_debug () {
 327         test "$debug" = "" || eval "$1"
 328 }
 329
 330 test_run_ () {
 331         eval >&3 2>&4 "$1"
 332         eval_ret="$?"
 333         return 0
 334 }
 335
 336 test_skip () {
 337         test_count=$(($test_count+1))
 338         to_skip=
 339         for skp in $GIT_SKIP_TESTS
 340         do
 341                 case $this_test.$test_count in
 342                 $skp)
 343                         to_skip=t
 344                 esac
 345         done
 346         if test -z "$to_skip" && test -n "$prereq" &&
 347            ! test_have_prereq "$prereq"
 348         then
 349                 to_skip=t
 350         fi
 351         case "$to_skip" in
 352         t)
 353                 say_color skip >&3 "skipping test: $@"
 354                 say_color skip "skip $test_count: $1"
 355                 : true
 356                 ;;
 357         *)
 358                 false
 359                 ;;
 360         esac
 361 }
 362
 363 test_expect_failure () {
 364         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 365         test "$#" = 2 ||
 366         error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
 367         if ! test_skip "$@"
 368         then
 369                 say >&3 "checking known breakage: $2"
 370                 test_run_ "$2"
 371                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 372                 then
 373                         test_known_broken_ok_ "$1"
 374                 else
 375                         test_known_broken_failure_ "$1"
 376                 fi
 377         fi
 378         echo >&3 ""
 379 }
 380
 381 test_expect_success () {
 382         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 383         test "$#" = 2 ||
 384         error "bug in the test script: not 2 or 3 parameters to test-expect-success"
 385         if ! test_skip "$@"
 386         then
 387                 say >&3 "expecting success: $2"
 388                 test_run_ "$2"
 389                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 390                 then
 391                         test_ok_ "$1"
 392                 else
 393                         test_failure_ "$@"
 394                 fi
 395         fi
 396         echo >&3 ""
 397 }
 398
 399 test_expect_code () {
 400         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 401         test "$#" = 3 ||
 402         error "bug in the test script: not 3 or 4 parameters to test-expect-code"
 403         if ! test_skip "$@"
 404         then
 405                 say >&3 "expecting exit code $1: $3"
 406                 test_run_ "$3"
 407                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 408                 then
 409                         test_ok_ "$2"
 410                 else
 411                         test_failure_ "$@"
 412                 fi
 413         fi
 414         echo >&3 ""
 415 }
 416
 417 # test_external runs external test scripts that provide continuous
 418 # test output about their progress, and succeeds/fails on
 419 # zero/non-zero exit code.  It outputs the test output on stdout even
 420 # in non-verbose mode, and announces the external script with "* run
 421 # <n>: ..." before running it.  When providing relative paths, keep in
 422 # mind that all scripts run in "trash directory".
 423 # Usage: test_external description command arguments...
 424 # Example: test_external 'Perl API' perl ../path/to/test.pl
 425 test_external () {
 426         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 427         test "$#" = 3 ||
 428         error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
 429         descr="$1"
 430         shift
 431         if ! test_skip "$descr" "$@"
 432         then
 433                 # Announce the script to reduce confusion about the
 434                 # test output that follows.
 435                 say_color "" " run $test_count: $descr ($*)"
 436                 # Run command; redirect its stderr to &4 as in
 437                 # test_run_, but keep its stdout on our stdout even in
 438                 # non-verbose mode.
 439                 "$@" 2>&4
 440                 if [ "$?" = 0 ]
 441                 then
 442                         test_ok_ "$descr"
 443                 else
 444                         test_failure_ "$descr" "$@"
 445                 fi
 446         fi
 447 }
 448
 449 # Like test_external, but in addition tests that the command generated
 450 # no output on stderr.
 451 test_external_without_stderr () {
 452         # The temporary file has no (and must have no) security
 453         # implications.
 454         tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 455         stderr="$tmp/git-external-stderr.$$.tmp"
 456         test_external "$@" 4> "$stderr"
 457         [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 458         descr="no stderr: $1"
 459         shift
 460         say >&3 "expecting no stderr from previous command"
 461         if [ ! -s "$stderr" ]; then
 462                 rm "$stderr"
 463                 test_ok_ "$descr"
 464         else
 465                 if [ "$verbose" = t ]; then
 466                         output=`echo; echo Stderr is:; cat "$stderr"`
 467                 else
 468                         output=
 469                 fi
 470                 # rm first in case test_failure exits.
 471                 rm "$stderr"
 472                 test_failure_ "$descr" "$@" "$output"
 473         fi
 474 }
 475
 476 # This is not among top-level (test_expect_success | test_expect_failure)
 477 # but is a prefix that can be used in the test script, like:
 478 #
 479 #       test_expect_success 'complain and die' '
 480 #           do something &&
 481 #           do something else &&
 482 #           test_must_fail git checkout ../outerspace
 483 #       '
 484 #
 485 # Writing this as "! git checkout ../outerspace" is wrong, because
 486 # the failure could be due to a segv.  We want a controlled failure.
 487
 488 test_must_fail () {
 489         "$@"
 490         test $? -gt 0 -a $? -le 129 -o $? -gt 192
 491 }
 492
 493 # test_cmp is a helper function to compare actual and expected output.
 494 # You can use it like:
 495 #
 496 #       test_expect_success 'foo works' '
 497 #               echo expected >expected &&
 498 #               foo >actual &&
 499 #               test_cmp expected actual
 500 #       '
 501 #
 502 # This could be written as either "cmp" or "diff -u", but:
 503 # - cmp's output is not nearly as easy to read as diff -u
 504 # - not all diff versions understand "-u"
 505
 506 test_cmp() {
 507         $GIT_TEST_CMP "$@"
 508 }
 509
 510 # Most tests can use the created repository, but some may need to create more.
 511 # Usage: test_create_repo <directory>
 512 test_create_repo () {
 513         test "$#" = 1 ||
 514         error "bug in the test script: not 1 parameter to test-create-repo"
 515         owd=`pwd`
 516         repo="$1"
 517         mkdir -p "$repo"
 518         cd "$repo" || error "Cannot setup test environment"
 519         "$GIT_EXEC_PATH/git-init" "--template=$TEST_DIRECTORY/../templates/blt/" >&3 2>&4 ||
 520         error "cannot run git init -- have you built things yet?"
 521         mv .git/hooks .git/hooks-disabled
 522         cd "$owd"
 523 }
 524
 525 test_done () {
 526         GIT_EXIT_OK=t
 527         test_results_dir="$TEST_DIRECTORY/test-results"
 528         mkdir -p "$test_results_dir"
 529         test_results_path="$test_results_dir/${0%.sh}-$$"
 530
 531         echo "total $test_count" >> $test_results_path
 532         echo "success $test_success" >> $test_results_path
 533         echo "fixed $test_fixed" >> $test_results_path
 534         echo "broken $test_broken" >> $test_results_path
 535         echo "failed $test_failure" >> $test_results_path
 536         echo "" >> $test_results_path
 537
 538         if test "$test_fixed" != 0
 539         then
 540                 say_color pass "fixed $test_fixed known breakage(s)"
 541         fi
 542         if test "$test_broken" != 0
 543         then
 544                 say_color error "still have $test_broken known breakage(s)"
 545                 msg="remaining $(($test_count-$test_broken)) test(s)"
 546         else
 547                 msg="$test_count test(s)"
 548         fi
 549         case "$test_failure" in
 550         0)
 551                 say_color pass "passed all $msg"
 552
 553                 test -d "$remove_trash" &&
 554                 cd "$(dirname "$remove_trash")" &&
 555                 rm -rf "$(basename "$remove_trash")"
 556
 557                 exit 0 ;;
 558
 559         *)
 560                 say_color error "failed $test_failure among $msg"
 561                 exit 1 ;;
 562
 563         esac
 564 }
 565
 566 # Test the binaries we have just built.  The tests are kept in
 567 # t/ subdirectory and are run in 'trash directory' subdirectory.
 568 TEST_DIRECTORY=$(pwd)
 569 if test -n "$valgrind"
 570 then
 571         make_symlink () {
 572                 test -h "$2" &&
 573                 test "$1" = "$(readlink "$2")" || {
 574                         # be super paranoid
 575                         if mkdir "$2".lock
 576                         then
 577                                 rm -f "$2" &&
 578                                 ln -s "$1" "$2" &&
 579                                 rm -r "$2".lock
 580                         else
 581                                 while test -d "$2".lock
 582                                 do
 583                                         say "Waiting for lock on $2."
 584                                         sleep 1
 585                                 done
 586                         fi
 587                 }
 588         }
 589
 590         make_valgrind_symlink () {
 591                 # handle only executables
 592                 test -x "$1" || return
 593
 594                 base=$(basename "$1")
 595                 symlink_target=$TEST_DIRECTORY/../$base
 596                 # do not override scripts
 597                 if test -x "$symlink_target" &&
 598                     test ! -d "$symlink_target" &&
 599                     test "#!" != "$(head -c 2 < "$symlink_target")"
 600                 then
 601                         symlink_target=../valgrind.sh
 602                 fi
 603                 case "$base" in
 604                 *.sh|*.perl)
 605                         symlink_target=../unprocessed-script
 606                 esac
 607                 # create the link, or replace it if it is out of date
 608                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 609         }
 610
 611         # override all git executables in TEST_DIRECTORY/..
 612         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 613         mkdir -p "$GIT_VALGRIND"/bin
 614         for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
 615         do
 616                 make_valgrind_symlink $file
 617         done
 618         OLDIFS=$IFS
 619         IFS=:
 620         for path in $PATH
 621         do
 622                 ls "$path"/git-* 2> /dev/null |
 623                 while read file
 624                 do
 625                         make_valgrind_symlink "$file"
 626                 done
 627         done
 628         IFS=$OLDIFS
 629         PATH=$GIT_VALGRIND/bin:$PATH
 630         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 631         export GIT_VALGRIND
 632 elif test -n "$GIT_TEST_INSTALLED" ; then
 633         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 634         error "Cannot run git from $GIT_TEST_INSTALLED."
 635         PATH=$GIT_TEST_INSTALLED:$TEST_DIRECTORY/..:$PATH
 636         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 637 else # normal case, use ../bin-wrappers only unless $with_dashes:
 638         git_bin_dir="$TEST_DIRECTORY/../bin-wrappers"
 639         if ! test -x "$git_bin_dir/git" ; then
 640                 if test -z "$with_dashes" ; then
 641                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 642                 fi
 643                 with_dashes=t
 644         fi
 645         PATH="$git_bin_dir:$PATH"
 646         GIT_EXEC_PATH=$TEST_DIRECTORY/..
 647         if test -n "$with_dashes" ; then
 648                 PATH="$TEST_DIRECTORY/..:$PATH"
 649         fi
 650 fi
 651 GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 652 unset GIT_CONFIG
 653 GIT_CONFIG_NOSYSTEM=1
 654 GIT_CONFIG_NOGLOBAL=1
 655 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 656
 657 . ../GIT-BUILD-OPTIONS
 658
 659 GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 660 export GITPERLLIB
 661 test -d ../templates/blt || {
 662         error "You haven't built things yet, have you?"
 663 }
 664
 665 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 666 then
 667         GITPYTHONLIB="$(pwd)/../git_remote_helpers/build/lib"
 668         export GITPYTHONLIB
 669         test -d ../git_remote_helpers/build || {
 670                 error "You haven't built git_remote_helpers yet, have you?"
 671         }
 672 fi
 673
 674 if ! test -x ../test-chmtime; then
 675         echo >&2 'You need to build test-chmtime:'
 676         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 677         exit 1
 678 fi
 679
 680 # Test repository
 681 test="trash directory.$(basename "$0" .sh)"
 682 test -n "$root" && test="$root/$test"
 683 case "$test" in
 684 /*) TRASH_DIRECTORY="$test" ;;
 685  *) TRASH_DIRECTORY="$TEST_DIRECTORY/$test" ;;
 686 esac
 687 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 688 rm -fr "$test" || {
 689         GIT_EXIT_OK=t
 690         echo >&5 "FATAL: Cannot prepare test area"
 691         exit 1
 692 }
 693
 694 test_create_repo "$test"
 695 # Use -P to resolve symlinks in our working directory so that the cwd
 696 # in subprocesses like git equals our $PWD (for pathname comparisons).
 697 cd -P "$test" || exit 1
 698
 699 this_test=${0##*/}
 700 this_test=${this_test%%-*}
 701 for skp in $GIT_SKIP_TESTS
 702 do
 703         to_skip=
 704         for skp in $GIT_SKIP_TESTS
 705         do
 706                 case "$this_test" in
 707                 $skp)
 708                         to_skip=t
 709                 esac
 710         done
 711         case "$to_skip" in
 712         t)
 713                 say_color skip >&3 "skipping test $this_test altogether"
 714                 say_color skip "skip all tests in $this_test"
 715                 test_done
 716         esac
 717 done
 718
 719 # Provide an implementation of the 'yes' utility
 720 yes () {
 721         if test $# = 0
 722         then
 723                 y=y
 724         else
 725                 y="$*"
 726         fi
 727
 728         while echo "$y"
 729         do
 730                 :
 731         done
 732 }
 733
 734 # Fix some commands on Windows
 735 case $(uname -s) in
 736 *MINGW*)
 737         # Windows has its own (incompatible) sort and find
 738         sort () {
 739                 /usr/bin/sort "$@"
 740         }
 741         find () {
 742                 /usr/bin/find "$@"
 743         }
 744         sum () {
 745                 md5sum "$@"
 746         }
 747         # git sees Windows-style pwd
 748         pwd () {
 749                 builtin pwd -W
 750         }
 751         # no POSIX permissions
 752         # backslashes in pathspec are converted to '/'
 753         # exec does not inherit the PID
 754         ;;
 755 *)
 756         test_set_prereq POSIXPERM
 757         test_set_prereq BSLASHPSPEC
 758         test_set_prereq EXECKEEPSPID
 759         ;;
 760 esac
 761
 762 test -z "$NO_PERL" && test_set_prereq PERL
 763 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 764
 765 # test whether the filesystem supports symbolic links
 766 ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
 767 rm -f y