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