t/test-lib.sh

   1 #!/bin/sh
   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 # if --tee was passed, write the output not only to the terminal, but
  19 # additionally to the file test-results/$BASENAME.out, too.
  20 case "$GIT_TEST_TEE_STARTED, $* " in
  21 done,*)
  22         # do not redirect again
  23         ;;
  24 *' --tee '*|*' --va'*)
  25         mkdir -p test-results
  26         BASE=test-results/$(basename "$0" .sh)
  27         (GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
  28          echo $? > $BASE.exit) | tee $BASE.out
  29         test "$(cat $BASE.exit)" = 0
  30         exit
  31         ;;
  32 esac
  33
  34 # Keep the original TERM for say_color
  35 ORIGINAL_TERM=$TERM
  36
  37 # For repeatability, reset the environment to known value.
  38 LANG=C
  39 LC_ALL=C
  40 PAGER=cat
  41 TZ=UTC
  42 TERM=dumb
  43 export LANG LC_ALL PAGER TERM TZ
  44 EDITOR=:
  45 unset VISUAL
  46 unset GIT_EDITOR
  47 unset AUTHOR_DATE
  48 unset AUTHOR_EMAIL
  49 unset AUTHOR_NAME
  50 unset COMMIT_AUTHOR_EMAIL
  51 unset COMMIT_AUTHOR_NAME
  52 unset EMAIL
  53 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  54 unset GIT_AUTHOR_DATE
  55 GIT_AUTHOR_EMAIL=author@example.com
  56 GIT_AUTHOR_NAME='A U Thor'
  57 unset GIT_COMMITTER_DATE
  58 GIT_COMMITTER_EMAIL=committer@example.com
  59 GIT_COMMITTER_NAME='C O Mitter'
  60 unset GIT_DIFF_OPTS
  61 unset GIT_DIR
  62 unset GIT_WORK_TREE
  63 unset GIT_EXTERNAL_DIFF
  64 unset GIT_INDEX_FILE
  65 unset GIT_OBJECT_DIRECTORY
  66 unset GIT_CEILING_DIRECTORIES
  67 unset SHA1_FILE_DIRECTORIES
  68 unset SHA1_FILE_DIRECTORY
  69 unset GIT_NOTES_REF
  70 unset GIT_NOTES_DISPLAY_REF
  71 unset GIT_NOTES_REWRITE_REF
  72 unset GIT_NOTES_REWRITE_MODE
  73 GIT_MERGE_VERBOSITY=5
  74 export GIT_MERGE_VERBOSITY
  75 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  76 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  77 export EDITOR
  78
  79 # Protect ourselves from common misconfiguration to export
  80 # CDPATH into the environment
  81 unset CDPATH
  82
  83 unset GREP_OPTIONS
  84
  85 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  86         1|2|true)
  87                 echo "* warning: Some tests will not work if GIT_TRACE" \
  88                         "is set as to trace on STDERR ! *"
  89                 echo "* warning: Please set GIT_TRACE to something" \
  90                         "other than 1, 2 or true ! *"
  91                 ;;
  92 esac
  93
  94 # Convenience
  95 #
  96 # A regexp to match 5 and 40 hexdigits
  97 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
  98 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
  99
 100 # Each test should start with something like this, after copyright notices:
 101 #
 102 # test_description='Description of this test...
 103 # This test checks if command xyzzy does the right thing...
 104 # '
 105 # . ./test-lib.sh
 106 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 107                 TERM=$ORIGINAL_TERM &&
 108                 export TERM &&
 109                 [ -t 1 ] &&
 110                 tput bold >/dev/null 2>&1 &&
 111                 tput setaf 1 >/dev/null 2>&1 &&
 112                 tput sgr0 >/dev/null 2>&1
 113         ) &&
 114         color=t
 115
 116 while test "$#" -ne 0
 117 do
 118         case "$1" in
 119         -d|--d|--de|--deb|--debu|--debug)
 120                 debug=t; shift ;;
 121         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 122                 immediate=t; shift ;;
 123         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 124                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 125         -h|--h|--he|--hel|--help)
 126                 help=t; shift ;;
 127         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 128                 verbose=t; shift ;;
 129         -q|--q|--qu|--qui|--quie|--quiet)
 130                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 131                 # passed without the ok/not ok details is always an error.
 132                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 133         --with-dashes)
 134                 with_dashes=t; shift ;;
 135         --no-color)
 136                 color=; shift ;;
 137         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 138                 valgrind=t; verbose=t; shift ;;
 139         --tee)
 140                 shift ;; # was handled already
 141         --root=*)
 142                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 143                 shift ;;
 144         *)
 145                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 146         esac
 147 done
 148
 149 if test -n "$color"; then
 150         say_color () {
 151                 (
 152                 TERM=$ORIGINAL_TERM
 153                 export TERM
 154                 case "$1" in
 155                         error) tput bold; tput setaf 1;; # bold red
 156                         skip)  tput bold; tput setaf 2;; # bold green
 157                         pass)  tput setaf 2;;            # green
 158                         info)  tput setaf 3;;            # brown
 159                         *) test -n "$quiet" && return;;
 160                 esac
 161                 shift
 162                 printf "%s" "$*"
 163                 tput sgr0
 164                 echo
 165                 )
 166         }
 167 else
 168         say_color() {
 169                 test -z "$1" && test -n "$quiet" && return
 170                 shift
 171                 echo "$*"
 172         }
 173 fi
 174
 175 error () {
 176         say_color error "error: $*"
 177         GIT_EXIT_OK=t
 178         exit 1
 179 }
 180
 181 say () {
 182         say_color info "$*"
 183 }
 184
 185 test "${test_description}" != "" ||
 186 error "Test script did not set test_description."
 187
 188 if test "$help" = "t"
 189 then
 190         echo "$test_description"
 191         exit 0
 192 fi
 193
 194 exec 5>&1
 195 if test "$verbose" = "t"
 196 then
 197         exec 4>&2 3>&1
 198 else
 199         exec 4>/dev/null 3>/dev/null
 200 fi
 201
 202 test_failure=0
 203 test_count=0
 204 test_fixed=0
 205 test_broken=0
 206 test_success=0
 207
 208 test_external_has_tap=0
 209
 210 die () {
 211         code=$?
 212         if test -n "$GIT_EXIT_OK"
 213         then
 214                 exit $code
 215         else
 216                 echo >&5 "FATAL: Unexpected exit with code $code"
 217                 exit 1
 218         fi
 219 }
 220
 221 GIT_EXIT_OK=
 222 trap 'die' EXIT
 223
 224 # The semantics of the editor variables are that of invoking
 225 # sh -c "$EDITOR \"$@\"" files ...
 226 #
 227 # If our trash directory contains shell metacharacters, they will be
 228 # interpreted if we just set $EDITOR directly, so do a little dance with
 229 # environment variables to work around this.
 230 #
 231 # In particular, quoting isn't enough, as the path may contain the same quote
 232 # that we're using.
 233 test_set_editor () {
 234         FAKE_EDITOR="$1"
 235         export FAKE_EDITOR
 236         EDITOR='"$FAKE_EDITOR"'
 237         export EDITOR
 238 }
 239
 240 test_decode_color () {
 241         sed     -e 's/.\[1m/<WHITE>/g' \
 242                 -e 's/.\[31m/<RED>/g' \
 243                 -e 's/.\[32m/<GREEN>/g' \
 244                 -e 's/.\[33m/<YELLOW>/g' \
 245                 -e 's/.\[34m/<BLUE>/g' \
 246                 -e 's/.\[35m/<MAGENTA>/g' \
 247                 -e 's/.\[36m/<CYAN>/g' \
 248                 -e 's/.\[m/<RESET>/g'
 249 }
 250
 251 q_to_nul () {
 252         perl -pe 'y/Q/\000/'
 253 }
 254
 255 q_to_cr () {
 256         tr Q '\015'
 257 }
 258
 259 append_cr () {
 260         sed -e 's/$/Q/' | tr Q '\015'
 261 }
 262
 263 remove_cr () {
 264         tr '\015' Q | sed -e 's/Q$//'
 265 }
 266
 267 test_tick () {
 268         if test -z "${test_tick+set}"
 269         then
 270                 test_tick=1112911993
 271         else
 272                 test_tick=$(($test_tick + 60))
 273         fi
 274         GIT_COMMITTER_DATE="$test_tick -0700"
 275         GIT_AUTHOR_DATE="$test_tick -0700"
 276         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 277 }
 278
 279 # Call test_commit with the arguments "<message> [<file> [<contents>]]"
 280 #
 281 # This will commit a file with the given contents and the given commit
 282 # message.  It will also add a tag with <message> as name.
 283 #
 284 # Both <file> and <contents> default to <message>.
 285
 286 test_commit () {
 287         file=${2:-"$1.t"}
 288         echo "${3-$1}" > "$file" &&
 289         git add "$file" &&
 290         test_tick &&
 291         git commit -m "$1" &&
 292         git tag "$1"
 293 }
 294
 295 # Call test_merge with the arguments "<message> <commit>", where <commit>
 296 # can be a tag pointing to the commit-to-merge.
 297
 298 test_merge () {
 299         test_tick &&
 300         git merge -m "$1" "$2" &&
 301         git tag "$1"
 302 }
 303
 304 # This function helps systems where core.filemode=false is set.
 305 # Use it instead of plain 'chmod +x' to set or unset the executable bit
 306 # of a file in the working directory and add it to the index.
 307
 308 test_chmod () {
 309         chmod "$@" &&
 310         git update-index --add "--chmod=$@"
 311 }
 312
 313 # Use test_set_prereq to tell that a particular prerequisite is available.
 314 # The prerequisite can later be checked for in two ways:
 315 #
 316 # - Explicitly using test_have_prereq.
 317 #
 318 # - Implicitly by specifying the prerequisite tag in the calls to
 319 #   test_expect_{success,failure,code}.
 320 #
 321 # The single parameter is the prerequisite tag (a simple word, in all
 322 # capital letters by convention).
 323
 324 test_set_prereq () {
 325         satisfied="$satisfied$1 "
 326 }
 327 satisfied=" "
 328
 329 test_have_prereq () {
 330         case $satisfied in
 331         *" $1 "*)
 332                 : yes, have it ;;
 333         *)
 334                 ! : nope ;;
 335         esac
 336 }
 337
 338 # You are not expected to call test_ok_ and test_failure_ directly, use
 339 # the text_expect_* functions instead.
 340
 341 test_ok_ () {
 342         test_success=$(($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 $1"
 349         shift
 350         echo "$@" | 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 "" "ok $test_count - $@ # TODO known breakage"
 357 }
 358
 359 test_known_broken_failure_ () {
 360         test_broken=$(($test_broken+1))
 361         say_color skip "not ok $test_count - $@ # TODO known breakage"
 362 }
 363
 364 test_debug () {
 365         test "$debug" = "" || eval "$1"
 366 }
 367
 368 test_run_ () {
 369         test_cleanup=:
 370         eval >&3 2>&4 "$1"
 371         eval_ret=$?
 372         eval >&3 2>&4 "$test_cleanup"
 373         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"; then
 374                 echo ""
 375         fi
 376         return 0
 377 }
 378
 379 test_skip () {
 380         test_count=$(($test_count+1))
 381         to_skip=
 382         for skp in $GIT_SKIP_TESTS
 383         do
 384                 case $this_test.$test_count in
 385                 $skp)
 386                         to_skip=t
 387                 esac
 388         done
 389         if test -z "$to_skip" && test -n "$prereq" &&
 390            ! test_have_prereq "$prereq"
 391         then
 392                 to_skip=t
 393         fi
 394         case "$to_skip" in
 395         t)
 396                 say_color skip >&3 "skipping test: $@"
 397                 say_color skip "ok $test_count: # skip $1"
 398                 : true
 399                 ;;
 400         *)
 401                 false
 402                 ;;
 403         esac
 404 }
 405
 406 test_expect_failure () {
 407         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 408         test "$#" = 2 ||
 409         error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
 410         if ! test_skip "$@"
 411         then
 412                 say >&3 "checking known breakage: $2"
 413                 test_run_ "$2"
 414                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 415                 then
 416                         test_known_broken_ok_ "$1"
 417                 else
 418                         test_known_broken_failure_ "$1"
 419                 fi
 420         fi
 421         echo >&3 ""
 422 }
 423
 424 test_expect_success () {
 425         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 426         test "$#" = 2 ||
 427         error "bug in the test script: not 2 or 3 parameters to test-expect-success"
 428         if ! test_skip "$@"
 429         then
 430                 say >&3 "expecting success: $2"
 431                 test_run_ "$2"
 432                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 433                 then
 434                         test_ok_ "$1"
 435                 else
 436                         test_failure_ "$@"
 437                 fi
 438         fi
 439         echo >&3 ""
 440 }
 441
 442 test_expect_code () {
 443         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 444         test "$#" = 3 ||
 445         error "bug in the test script: not 3 or 4 parameters to test-expect-code"
 446         if ! test_skip "$@"
 447         then
 448                 say >&3 "expecting exit code $1: $3"
 449                 test_run_ "$3"
 450                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 451                 then
 452                         test_ok_ "$2"
 453                 else
 454                         test_failure_ "$@"
 455                 fi
 456         fi
 457         echo >&3 ""
 458 }
 459
 460 # test_external runs external test scripts that provide continuous
 461 # test output about their progress, and succeeds/fails on
 462 # zero/non-zero exit code.  It outputs the test output on stdout even
 463 # in non-verbose mode, and announces the external script with "# run
 464 # <n>: ..." before running it.  When providing relative paths, keep in
 465 # mind that all scripts run in "trash directory".
 466 # Usage: test_external description command arguments...
 467 # Example: test_external 'Perl API' perl ../path/to/test.pl
 468 test_external () {
 469         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 470         test "$#" = 3 ||
 471         error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
 472         descr="$1"
 473         shift
 474         if ! test_skip "$descr" "$@"
 475         then
 476                 # Announce the script to reduce confusion about the
 477                 # test output that follows.
 478                 say_color "" "# run $test_count: $descr ($*)"
 479                 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
 480                 # to be able to use them in script
 481                 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
 482                 # Run command; redirect its stderr to &4 as in
 483                 # test_run_, but keep its stdout on our stdout even in
 484                 # non-verbose mode.
 485                 "$@" 2>&4
 486                 if [ "$?" = 0 ]
 487                 then
 488                         if test $test_external_has_tap -eq 0; then
 489                                 test_ok_ "$descr"
 490                         else
 491                                 say_color "" "# test_external test $descr was ok"
 492                                 test_success=$(($test_success + 1))
 493                         fi
 494                 else
 495                         if test $test_external_has_tap -eq 0; then
 496                                 test_failure_ "$descr" "$@"
 497                         else
 498                                 say_color error "# test_external test $descr failed: $@"
 499                                 test_failure=$(($test_failure + 1))
 500                         fi
 501                 fi
 502         fi
 503 }
 504
 505 # Like test_external, but in addition tests that the command generated
 506 # no output on stderr.
 507 test_external_without_stderr () {
 508         # The temporary file has no (and must have no) security
 509         # implications.
 510         tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 511         stderr="$tmp/git-external-stderr.$$.tmp"
 512         test_external "$@" 4> "$stderr"
 513         [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 514         descr="no stderr: $1"
 515         shift
 516         say >&3 "# expecting no stderr from previous command"
 517         if [ ! -s "$stderr" ]; then
 518                 rm "$stderr"
 519
 520                 if test $test_external_has_tap -eq 0; then
 521                         test_ok_ "$descr"
 522                 else
 523                         say_color "" "# test_external_without_stderr test $descr was ok"
 524                         test_success=$(($test_success + 1))
 525                 fi
 526         else
 527                 if [ "$verbose" = t ]; then
 528                         output=`echo; echo "# Stderr is:"; cat "$stderr"`
 529                 else
 530                         output=
 531                 fi
 532                 # rm first in case test_failure exits.
 533                 rm "$stderr"
 534                 if test $test_external_has_tap -eq 0; then
 535                         test_failure_ "$descr" "$@" "$output"
 536                 else
 537                         say_color error "# test_external_without_stderr test $descr failed: $@: $output"
 538                         test_failure=$(($test_failure + 1))
 539                 fi
 540         fi
 541 }
 542
 543 # This is not among top-level (test_expect_success | test_expect_failure)
 544 # but is a prefix that can be used in the test script, like:
 545 #
 546 #       test_expect_success 'complain and die' '
 547 #           do something &&
 548 #           do something else &&
 549 #           test_must_fail git checkout ../outerspace
 550 #       '
 551 #
 552 # Writing this as "! git checkout ../outerspace" is wrong, because
 553 # the failure could be due to a segv.  We want a controlled failure.
 554
 555 test_must_fail () {
 556         "$@"
 557         test $? -gt 0 -a $? -le 129 -o $? -gt 192
 558 }
 559
 560 # Similar to test_must_fail, but tolerates success, too.  This is
 561 # meant to be used in contexts like:
 562 #
 563 #       test_expect_success 'some command works without configuration' '
 564 #               test_might_fail git config --unset all.configuration &&
 565 #               do something
 566 #       '
 567 #
 568 # Writing "git config --unset all.configuration || :" would be wrong,
 569 # because we want to notice if it fails due to segv.
 570
 571 test_might_fail () {
 572         "$@"
 573         test $? -ge 0 -a $? -le 129 -o $? -gt 192
 574 }
 575
 576 # test_cmp is a helper function to compare actual and expected output.
 577 # You can use it like:
 578 #
 579 #       test_expect_success 'foo works' '
 580 #               echo expected >expected &&
 581 #               foo >actual &&
 582 #               test_cmp expected actual
 583 #       '
 584 #
 585 # This could be written as either "cmp" or "diff -u", but:
 586 # - cmp's output is not nearly as easy to read as diff -u
 587 # - not all diff versions understand "-u"
 588
 589 test_cmp() {
 590         $GIT_TEST_CMP "$@"
 591 }
 592
 593 # This function can be used to schedule some commands to be run
 594 # unconditionally at the end of the test to restore sanity:
 595 #
 596 #       test_expect_success 'test core.capslock' '
 597 #               git config core.capslock true &&
 598 #               test_when_finished "git config --unset core.capslock" &&
 599 #               hello world
 600 #       '
 601 #
 602 # That would be roughly equivalent to
 603 #
 604 #       test_expect_success 'test core.capslock' '
 605 #               git config core.capslock true &&
 606 #               hello world
 607 #               git config --unset core.capslock
 608 #       '
 609 #
 610 # except that the greeting and config --unset must both succeed for
 611 # the test to pass.
 612
 613 test_when_finished () {
 614         test_cleanup="{ $*
 615                 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
 616 }
 617
 618 # Most tests can use the created repository, but some may need to create more.
 619 # Usage: test_create_repo <directory>
 620 test_create_repo () {
 621         test "$#" = 1 ||
 622         error "bug in the test script: not 1 parameter to test-create-repo"
 623         owd=`pwd`
 624         repo="$1"
 625         mkdir -p "$repo"
 626         cd "$repo" || error "Cannot setup test environment"
 627         "$GIT_EXEC_PATH/git-init" "--template=$TEST_DIRECTORY/../templates/blt/" >&3 2>&4 ||
 628         error "cannot run git init -- have you built things yet?"
 629         mv .git/hooks .git/hooks-disabled
 630         cd "$owd"
 631 }
 632
 633 test_done () {
 634         GIT_EXIT_OK=t
 635         test_results_dir="$TEST_DIRECTORY/test-results"
 636         mkdir -p "$test_results_dir"
 637         test_results_path="$test_results_dir/${0%.sh}-$$"
 638
 639         echo "total $test_count" >> $test_results_path
 640         echo "success $test_success" >> $test_results_path
 641         echo "fixed $test_fixed" >> $test_results_path
 642         echo "broken $test_broken" >> $test_results_path
 643         echo "failed $test_failure" >> $test_results_path
 644         echo "" >> $test_results_path
 645
 646         if test "$test_fixed" != 0
 647         then
 648                 say_color pass "# fixed $test_fixed known breakage(s)"
 649         fi
 650         if test "$test_broken" != 0
 651         then
 652                 say_color error "# still have $test_broken known breakage(s)"
 653                 msg="remaining $(($test_count-$test_broken)) test(s)"
 654         else
 655                 msg="$test_count test(s)"
 656         fi
 657         case "$test_failure" in
 658         0)
 659                 # Maybe print SKIP message
 660                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 661
 662                 if test $test_external_has_tap -eq 0; then
 663                         say_color pass "# passed all $msg"
 664                         say "1..$test_count$skip_all"
 665                 fi
 666
 667                 test -d "$remove_trash" &&
 668                 cd "$(dirname "$remove_trash")" &&
 669                 rm -rf "$(basename "$remove_trash")"
 670
 671                 exit 0 ;;
 672
 673         *)
 674                 if test $test_external_has_tap -eq 0; then
 675                         say_color error "# failed $test_failure among $msg"
 676                         say "1..$test_count"
 677                 fi
 678
 679                 exit 1 ;;
 680
 681         esac
 682 }
 683
 684 # Test the binaries we have just built.  The tests are kept in
 685 # t/ subdirectory and are run in 'trash directory' subdirectory.
 686 TEST_DIRECTORY=$(pwd)
 687 if test -n "$valgrind"
 688 then
 689         make_symlink () {
 690                 test -h "$2" &&
 691                 test "$1" = "$(readlink "$2")" || {
 692                         # be super paranoid
 693                         if mkdir "$2".lock
 694                         then
 695                                 rm -f "$2" &&
 696                                 ln -s "$1" "$2" &&
 697                                 rm -r "$2".lock
 698                         else
 699                                 while test -d "$2".lock
 700                                 do
 701                                         say "Waiting for lock on $2."
 702                                         sleep 1
 703                                 done
 704                         fi
 705                 }
 706         }
 707
 708         make_valgrind_symlink () {
 709                 # handle only executables
 710                 test -x "$1" || return
 711
 712                 base=$(basename "$1")
 713                 symlink_target=$TEST_DIRECTORY/../$base
 714                 # do not override scripts
 715                 if test -x "$symlink_target" &&
 716                     test ! -d "$symlink_target" &&
 717                     test "#!" != "$(head -c 2 < "$symlink_target")"
 718                 then
 719                         symlink_target=../valgrind.sh
 720                 fi
 721                 case "$base" in
 722                 *.sh|*.perl)
 723                         symlink_target=../unprocessed-script
 724                 esac
 725                 # create the link, or replace it if it is out of date
 726                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 727         }
 728
 729         # override all git executables in TEST_DIRECTORY/..
 730         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 731         mkdir -p "$GIT_VALGRIND"/bin
 732         for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
 733         do
 734                 make_valgrind_symlink $file
 735         done
 736         OLDIFS=$IFS
 737         IFS=:
 738         for path in $PATH
 739         do
 740                 ls "$path"/git-* 2> /dev/null |
 741                 while read file
 742                 do
 743                         make_valgrind_symlink "$file"
 744                 done
 745         done
 746         IFS=$OLDIFS
 747         PATH=$GIT_VALGRIND/bin:$PATH
 748         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 749         export GIT_VALGRIND
 750 elif test -n "$GIT_TEST_INSTALLED" ; then
 751         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 752         error "Cannot run git from $GIT_TEST_INSTALLED."
 753         PATH=$GIT_TEST_INSTALLED:$TEST_DIRECTORY/..:$PATH
 754         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 755 else # normal case, use ../bin-wrappers only unless $with_dashes:
 756         git_bin_dir="$TEST_DIRECTORY/../bin-wrappers"
 757         if ! test -x "$git_bin_dir/git" ; then
 758                 if test -z "$with_dashes" ; then
 759                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 760                 fi
 761                 with_dashes=t
 762         fi
 763         PATH="$git_bin_dir:$PATH"
 764         GIT_EXEC_PATH=$TEST_DIRECTORY/..
 765         if test -n "$with_dashes" ; then
 766                 PATH="$TEST_DIRECTORY/..:$PATH"
 767         fi
 768 fi
 769 GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 770 unset GIT_CONFIG
 771 GIT_CONFIG_NOSYSTEM=1
 772 GIT_CONFIG_NOGLOBAL=1
 773 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 774
 775 . ../GIT-BUILD-OPTIONS
 776
 777 if test -z "$GIT_TEST_CMP"
 778 then
 779         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 780         then
 781                 GIT_TEST_CMP="$DIFF -c"
 782         else
 783                 GIT_TEST_CMP="$DIFF -u"
 784         fi
 785 fi
 786
 787 GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 788 export GITPERLLIB
 789 test -d ../templates/blt || {
 790         error "You haven't built things yet, have you?"
 791 }
 792
 793 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 794 then
 795         GITPYTHONLIB="$(pwd)/../git_remote_helpers/build/lib"
 796         export GITPYTHONLIB
 797         test -d ../git_remote_helpers/build || {
 798                 error "You haven't built git_remote_helpers yet, have you?"
 799         }
 800 fi
 801
 802 if ! test -x ../test-chmtime; then
 803         echo >&2 'You need to build test-chmtime:'
 804         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 805         exit 1
 806 fi
 807
 808 # Test repository
 809 test="trash directory.$(basename "$0" .sh)"
 810 test -n "$root" && test="$root/$test"
 811 case "$test" in
 812 /*) TRASH_DIRECTORY="$test" ;;
 813  *) TRASH_DIRECTORY="$TEST_DIRECTORY/$test" ;;
 814 esac
 815 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 816 rm -fr "$test" || {
 817         GIT_EXIT_OK=t
 818         echo >&5 "FATAL: Cannot prepare test area"
 819         exit 1
 820 }
 821
 822 test_create_repo "$test"
 823 # Use -P to resolve symlinks in our working directory so that the cwd
 824 # in subprocesses like git equals our $PWD (for pathname comparisons).
 825 cd -P "$test" || exit 1
 826
 827 this_test=${0##*/}
 828 this_test=${this_test%%-*}
 829 for skp in $GIT_SKIP_TESTS
 830 do
 831         to_skip=
 832         for skp in $GIT_SKIP_TESTS
 833         do
 834                 case "$this_test" in
 835                 $skp)
 836                         to_skip=t
 837                 esac
 838         done
 839         case "$to_skip" in
 840         t)
 841                 say_color skip >&3 "skipping test $this_test altogether"
 842                 say_color skip "skip all tests in $this_test"
 843                 test_done
 844         esac
 845 done
 846
 847 # Provide an implementation of the 'yes' utility
 848 yes () {
 849         if test $# = 0
 850         then
 851                 y=y
 852         else
 853                 y="$*"
 854         fi
 855
 856         while echo "$y"
 857         do
 858                 :
 859         done
 860 }
 861
 862 # Fix some commands on Windows
 863 case $(uname -s) in
 864 *MINGW*)
 865         # Windows has its own (incompatible) sort and find
 866         sort () {
 867                 /usr/bin/sort "$@"
 868         }
 869         find () {
 870                 /usr/bin/find "$@"
 871         }
 872         sum () {
 873                 md5sum "$@"
 874         }
 875         # git sees Windows-style pwd
 876         pwd () {
 877                 builtin pwd -W
 878         }
 879         # no POSIX permissions
 880         # backslashes in pathspec are converted to '/'
 881         # exec does not inherit the PID
 882         ;;
 883 *)
 884         test_set_prereq POSIXPERM
 885         test_set_prereq BSLASHPSPEC
 886         test_set_prereq EXECKEEPSPID
 887         ;;
 888 esac
 889
 890 test -z "$NO_PERL" && test_set_prereq PERL
 891 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 892
 893 # test whether the filesystem supports symbolic links
 894 ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
 895 rm -f y