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         --no-python)
 138                 # noop now...
 139                 shift ;;
 140         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 141                 valgrind=t; verbose=t; shift ;;
 142         --tee)
 143                 shift ;; # was handled already
 144         --root=*)
 145                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 146                 shift ;;
 147         *)
 148                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 149         esac
 150 done
 151
 152 if test -n "$color"; then
 153         say_color () {
 154                 (
 155                 TERM=$ORIGINAL_TERM
 156                 export TERM
 157                 case "$1" in
 158                         error) tput bold; tput setaf 1;; # bold red
 159                         skip)  tput bold; tput setaf 2;; # bold green
 160                         pass)  tput setaf 2;;            # green
 161                         info)  tput setaf 3;;            # brown
 162                         *) test -n "$quiet" && return;;
 163                 esac
 164                 shift
 165                 printf "%s" "$*"
 166                 tput sgr0
 167                 echo
 168                 )
 169         }
 170 else
 171         say_color() {
 172                 test -z "$1" && test -n "$quiet" && return
 173                 shift
 174                 echo "$*"
 175         }
 176 fi
 177
 178 error () {
 179         say_color error "error: $*"
 180         GIT_EXIT_OK=t
 181         exit 1
 182 }
 183
 184 say () {
 185         say_color info "$*"
 186 }
 187
 188 test "${test_description}" != "" ||
 189 error "Test script did not set test_description."
 190
 191 if test "$help" = "t"
 192 then
 193         echo "$test_description"
 194         exit 0
 195 fi
 196
 197 exec 5>&1
 198 if test "$verbose" = "t"
 199 then
 200         exec 4>&2 3>&1
 201 else
 202         exec 4>/dev/null 3>/dev/null
 203 fi
 204
 205 test_failure=0
 206 test_count=0
 207 test_fixed=0
 208 test_broken=0
 209 test_success=0
 210
 211 test_external_has_tap=0
 212
 213 die () {
 214         code=$?
 215         if test -n "$GIT_EXIT_OK"
 216         then
 217                 exit $code
 218         else
 219                 echo >&5 "FATAL: Unexpected exit with code $code"
 220                 exit 1
 221         fi
 222 }
 223
 224 GIT_EXIT_OK=
 225 trap 'die' EXIT
 226
 227 # The semantics of the editor variables are that of invoking
 228 # sh -c "$EDITOR \"$@\"" files ...
 229 #
 230 # If our trash directory contains shell metacharacters, they will be
 231 # interpreted if we just set $EDITOR directly, so do a little dance with
 232 # environment variables to work around this.
 233 #
 234 # In particular, quoting isn't enough, as the path may contain the same quote
 235 # that we're using.
 236 test_set_editor () {
 237         FAKE_EDITOR="$1"
 238         export FAKE_EDITOR
 239         EDITOR='"$FAKE_EDITOR"'
 240         export EDITOR
 241 }
 242
 243 test_decode_color () {
 244         sed     -e 's/.\[1m/<WHITE>/g' \
 245                 -e 's/.\[31m/<RED>/g' \
 246                 -e 's/.\[32m/<GREEN>/g' \
 247                 -e 's/.\[33m/<YELLOW>/g' \
 248                 -e 's/.\[34m/<BLUE>/g' \
 249                 -e 's/.\[35m/<MAGENTA>/g' \
 250                 -e 's/.\[36m/<CYAN>/g' \
 251                 -e 's/.\[m/<RESET>/g'
 252 }
 253
 254 q_to_nul () {
 255         perl -pe 'y/Q/\000/'
 256 }
 257
 258 q_to_cr () {
 259         tr Q '\015'
 260 }
 261
 262 append_cr () {
 263         sed -e 's/$/Q/' | tr Q '\015'
 264 }
 265
 266 remove_cr () {
 267         tr '\015' Q | sed -e 's/Q$//'
 268 }
 269
 270 test_tick () {
 271         if test -z "${test_tick+set}"
 272         then
 273                 test_tick=1112911993
 274         else
 275                 test_tick=$(($test_tick + 60))
 276         fi
 277         GIT_COMMITTER_DATE="$test_tick -0700"
 278         GIT_AUTHOR_DATE="$test_tick -0700"
 279         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 280 }
 281
 282 # Call test_commit with the arguments "<message> [<file> [<contents>]]"
 283 #
 284 # This will commit a file with the given contents and the given commit
 285 # message.  It will also add a tag with <message> as name.
 286 #
 287 # Both <file> and <contents> default to <message>.
 288
 289 test_commit () {
 290         file=${2:-"$1.t"}
 291         echo "${3-$1}" > "$file" &&
 292         git add "$file" &&
 293         test_tick &&
 294         git commit -m "$1" &&
 295         git tag "$1"
 296 }
 297
 298 # Call test_merge with the arguments "<message> <commit>", where <commit>
 299 # can be a tag pointing to the commit-to-merge.
 300
 301 test_merge () {
 302         test_tick &&
 303         git merge -m "$1" "$2" &&
 304         git tag "$1"
 305 }
 306
 307 # This function helps systems where core.filemode=false is set.
 308 # Use it instead of plain 'chmod +x' to set or unset the executable bit
 309 # of a file in the working directory and add it to the index.
 310
 311 test_chmod () {
 312         chmod "$@" &&
 313         git update-index --add "--chmod=$@"
 314 }
 315
 316 # Use test_set_prereq to tell that a particular prerequisite is available.
 317 # The prerequisite can later be checked for in two ways:
 318 #
 319 # - Explicitly using test_have_prereq.
 320 #
 321 # - Implicitly by specifying the prerequisite tag in the calls to
 322 #   test_expect_{success,failure,code}.
 323 #
 324 # The single parameter is the prerequisite tag (a simple word, in all
 325 # capital letters by convention).
 326
 327 test_set_prereq () {
 328         satisfied="$satisfied$1 "
 329 }
 330 satisfied=" "
 331
 332 test_have_prereq () {
 333         case $satisfied in
 334         *" $1 "*)
 335                 : yes, have it ;;
 336         *)
 337                 ! : nope ;;
 338         esac
 339 }
 340
 341 # You are not expected to call test_ok_ and test_failure_ directly, use
 342 # the text_expect_* functions instead.
 343
 344 test_ok_ () {
 345         test_success=$(($test_success + 1))
 346         say_color "" "ok $test_count - $@"
 347 }
 348
 349 test_failure_ () {
 350         test_failure=$(($test_failure + 1))
 351         say_color error "not ok - $test_count $1"
 352         shift
 353         echo "$@" | sed -e 's/^/#       /'
 354         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 355 }
 356
 357 test_known_broken_ok_ () {
 358         test_fixed=$(($test_fixed+1))
 359         say_color "" "ok $test_count - $@ # TODO known breakage"
 360 }
 361
 362 test_known_broken_failure_ () {
 363         test_broken=$(($test_broken+1))
 364         say_color skip "not ok $test_count - $@ # TODO known breakage"
 365 }
 366
 367 test_debug () {
 368         test "$debug" = "" || eval "$1"
 369 }
 370
 371 test_run_ () {
 372         test_cleanup=:
 373         eval >&3 2>&4 "$1"
 374         eval_ret=$?
 375         eval >&3 2>&4 "$test_cleanup"
 376         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"; then
 377                 echo ""
 378         fi
 379         return 0
 380 }
 381
 382 test_skip () {
 383         test_count=$(($test_count+1))
 384         to_skip=
 385         for skp in $GIT_SKIP_TESTS
 386         do
 387                 case $this_test.$test_count in
 388                 $skp)
 389                         to_skip=t
 390                 esac
 391         done
 392         if test -z "$to_skip" && test -n "$prereq" &&
 393            ! test_have_prereq "$prereq"
 394         then
 395                 to_skip=t
 396         fi
 397         case "$to_skip" in
 398         t)
 399                 say_color skip >&3 "skipping test: $@"
 400                 say_color skip "ok $test_count: # skip $1"
 401                 : true
 402                 ;;
 403         *)
 404                 false
 405                 ;;
 406         esac
 407 }
 408
 409 test_expect_failure () {
 410         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 411         test "$#" = 2 ||
 412         error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
 413         if ! test_skip "$@"
 414         then
 415                 say >&3 "checking known breakage: $2"
 416                 test_run_ "$2"
 417                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 418                 then
 419                         test_known_broken_ok_ "$1"
 420                 else
 421                         test_known_broken_failure_ "$1"
 422                 fi
 423         fi
 424         echo >&3 ""
 425 }
 426
 427 test_expect_success () {
 428         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 429         test "$#" = 2 ||
 430         error "bug in the test script: not 2 or 3 parameters to test-expect-success"
 431         if ! test_skip "$@"
 432         then
 433                 say >&3 "expecting success: $2"
 434                 test_run_ "$2"
 435                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 436                 then
 437                         test_ok_ "$1"
 438                 else
 439                         test_failure_ "$@"
 440                 fi
 441         fi
 442         echo >&3 ""
 443 }
 444
 445 test_expect_code () {
 446         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 447         test "$#" = 3 ||
 448         error "bug in the test script: not 3 or 4 parameters to test-expect-code"
 449         if ! test_skip "$@"
 450         then
 451                 say >&3 "expecting exit code $1: $3"
 452                 test_run_ "$3"
 453                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 454                 then
 455                         test_ok_ "$2"
 456                 else
 457                         test_failure_ "$@"
 458                 fi
 459         fi
 460         echo >&3 ""
 461 }
 462
 463 # test_external runs external test scripts that provide continuous
 464 # test output about their progress, and succeeds/fails on
 465 # zero/non-zero exit code.  It outputs the test output on stdout even
 466 # in non-verbose mode, and announces the external script with "# run
 467 # <n>: ..." before running it.  When providing relative paths, keep in
 468 # mind that all scripts run in "trash directory".
 469 # Usage: test_external description command arguments...
 470 # Example: test_external 'Perl API' perl ../path/to/test.pl
 471 test_external () {
 472         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 473         test "$#" = 3 ||
 474         error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
 475         descr="$1"
 476         shift
 477         if ! test_skip "$descr" "$@"
 478         then
 479                 # Announce the script to reduce confusion about the
 480                 # test output that follows.
 481                 say_color "" "# run $test_count: $descr ($*)"
 482                 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
 483                 # to be able to use them in script
 484                 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
 485                 # Run command; redirect its stderr to &4 as in
 486                 # test_run_, but keep its stdout on our stdout even in
 487                 # non-verbose mode.
 488                 "$@" 2>&4
 489                 if [ "$?" = 0 ]
 490                 then
 491                         if test $test_external_has_tap -eq 0; then
 492                                 test_ok_ "$descr"
 493                         else
 494                                 say_color "" "# test_external test $descr was ok"
 495                                 test_success=$(($test_success + 1))
 496                         fi
 497                 else
 498                         if test $test_external_has_tap -eq 0; then
 499                                 test_failure_ "$descr" "$@"
 500                         else
 501                                 say_color error "# test_external test $descr failed: $@"
 502                                 test_failure=$(($test_failure + 1))
 503                         fi
 504                 fi
 505         fi
 506 }
 507
 508 # Like test_external, but in addition tests that the command generated
 509 # no output on stderr.
 510 test_external_without_stderr () {
 511         # The temporary file has no (and must have no) security
 512         # implications.
 513         tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 514         stderr="$tmp/git-external-stderr.$$.tmp"
 515         test_external "$@" 4> "$stderr"
 516         [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 517         descr="no stderr: $1"
 518         shift
 519         say >&3 "# expecting no stderr from previous command"
 520         if [ ! -s "$stderr" ]; then
 521                 rm "$stderr"
 522
 523                 if test $test_external_has_tap -eq 0; then
 524                         test_ok_ "$descr"
 525                 else
 526                         say_color "" "# test_external_without_stderr test $descr was ok"
 527                         test_success=$(($test_success + 1))
 528                 fi
 529         else
 530                 if [ "$verbose" = t ]; then
 531                         output=`echo; echo "# Stderr is:"; cat "$stderr"`
 532                 else
 533                         output=
 534                 fi
 535                 # rm first in case test_failure exits.
 536                 rm "$stderr"
 537                 if test $test_external_has_tap -eq 0; then
 538                         test_failure_ "$descr" "$@" "$output"
 539                 else
 540                         say_color error "# test_external_without_stderr test $descr failed: $@: $output"
 541                         test_failure=$(($test_failure + 1))
 542                 fi
 543         fi
 544 }
 545
 546 # This is not among top-level (test_expect_success | test_expect_failure)
 547 # but is a prefix that can be used in the test script, like:
 548 #
 549 #       test_expect_success 'complain and die' '
 550 #           do something &&
 551 #           do something else &&
 552 #           test_must_fail git checkout ../outerspace
 553 #       '
 554 #
 555 # Writing this as "! git checkout ../outerspace" is wrong, because
 556 # the failure could be due to a segv.  We want a controlled failure.
 557
 558 test_must_fail () {
 559         "$@"
 560         test $? -gt 0 -a $? -le 129 -o $? -gt 192
 561 }
 562
 563 # Similar to test_must_fail, but tolerates success, too.  This is
 564 # meant to be used in contexts like:
 565 #
 566 #       test_expect_success 'some command works without configuration' '
 567 #               test_might_fail git config --unset all.configuration &&
 568 #               do something
 569 #       '
 570 #
 571 # Writing "git config --unset all.configuration || :" would be wrong,
 572 # because we want to notice if it fails due to segv.
 573
 574 test_might_fail () {
 575         "$@"
 576         test $? -ge 0 -a $? -le 129 -o $? -gt 192
 577 }
 578
 579 # test_cmp is a helper function to compare actual and expected output.
 580 # You can use it like:
 581 #
 582 #       test_expect_success 'foo works' '
 583 #               echo expected >expected &&
 584 #               foo >actual &&
 585 #               test_cmp expected actual
 586 #       '
 587 #
 588 # This could be written as either "cmp" or "diff -u", but:
 589 # - cmp's output is not nearly as easy to read as diff -u
 590 # - not all diff versions understand "-u"
 591
 592 test_cmp() {
 593         $GIT_TEST_CMP "$@"
 594 }
 595
 596 # This function can be used to schedule some commands to be run
 597 # unconditionally at the end of the test to restore sanity:
 598 #
 599 #       test_expect_success 'test core.capslock' '
 600 #               git config core.capslock true &&
 601 #               test_when_finished "git config --unset core.capslock" &&
 602 #               hello world
 603 #       '
 604 #
 605 # That would be roughly equivalent to
 606 #
 607 #       test_expect_success 'test core.capslock' '
 608 #               git config core.capslock true &&
 609 #               hello world
 610 #               git config --unset core.capslock
 611 #       '
 612 #
 613 # except that the greeting and config --unset must both succeed for
 614 # the test to pass.
 615
 616 test_when_finished () {
 617         test_cleanup="{ $*
 618                 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
 619 }
 620
 621 # Most tests can use the created repository, but some may need to create more.
 622 # Usage: test_create_repo <directory>
 623 test_create_repo () {
 624         test "$#" = 1 ||
 625         error "bug in the test script: not 1 parameter to test-create-repo"
 626         owd=`pwd`
 627         repo="$1"
 628         mkdir -p "$repo"
 629         cd "$repo" || error "Cannot setup test environment"
 630         "$GIT_EXEC_PATH/git-init" "--template=$TEST_DIRECTORY/../templates/blt/" >&3 2>&4 ||
 631         error "cannot run git init -- have you built things yet?"
 632         mv .git/hooks .git/hooks-disabled
 633         cd "$owd"
 634 }
 635
 636 test_done () {
 637         GIT_EXIT_OK=t
 638         test_results_dir="$TEST_DIRECTORY/test-results"
 639         mkdir -p "$test_results_dir"
 640         test_results_path="$test_results_dir/${0%.sh}-$$"
 641
 642         echo "total $test_count" >> $test_results_path
 643         echo "success $test_success" >> $test_results_path
 644         echo "fixed $test_fixed" >> $test_results_path
 645         echo "broken $test_broken" >> $test_results_path
 646         echo "failed $test_failure" >> $test_results_path
 647         echo "" >> $test_results_path
 648
 649         if test "$test_fixed" != 0
 650         then
 651                 say_color pass "# fixed $test_fixed known breakage(s)"
 652         fi
 653         if test "$test_broken" != 0
 654         then
 655                 say_color error "# still have $test_broken known breakage(s)"
 656                 msg="remaining $(($test_count-$test_broken)) test(s)"
 657         else
 658                 msg="$test_count test(s)"
 659         fi
 660         case "$test_failure" in
 661         0)
 662                 # Maybe print SKIP message
 663                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 664
 665                 if test $test_external_has_tap -eq 0; then
 666                         say_color pass "# passed all $msg"
 667                         say "1..$test_count$skip_all"
 668                 fi
 669
 670                 test -d "$remove_trash" &&
 671                 cd "$(dirname "$remove_trash")" &&
 672                 rm -rf "$(basename "$remove_trash")"
 673
 674                 exit 0 ;;
 675
 676         *)
 677                 if test $test_external_has_tap -eq 0; then
 678                         say_color error "# failed $test_failure among $msg"
 679                         say "1..$test_count"
 680                 fi
 681
 682                 exit 1 ;;
 683
 684         esac
 685 }
 686
 687 # Test the binaries we have just built.  The tests are kept in
 688 # t/ subdirectory and are run in 'trash directory' subdirectory.
 689 TEST_DIRECTORY=$(pwd)
 690 if test -n "$valgrind"
 691 then
 692         make_symlink () {
 693                 test -h "$2" &&
 694                 test "$1" = "$(readlink "$2")" || {
 695                         # be super paranoid
 696                         if mkdir "$2".lock
 697                         then
 698                                 rm -f "$2" &&
 699                                 ln -s "$1" "$2" &&
 700                                 rm -r "$2".lock
 701                         else
 702                                 while test -d "$2".lock
 703                                 do
 704                                         say "Waiting for lock on $2."
 705                                         sleep 1
 706                                 done
 707                         fi
 708                 }
 709         }
 710
 711         make_valgrind_symlink () {
 712                 # handle only executables
 713                 test -x "$1" || return
 714
 715                 base=$(basename "$1")
 716                 symlink_target=$TEST_DIRECTORY/../$base
 717                 # do not override scripts
 718                 if test -x "$symlink_target" &&
 719                     test ! -d "$symlink_target" &&
 720                     test "#!" != "$(head -c 2 < "$symlink_target")"
 721                 then
 722                         symlink_target=../valgrind.sh
 723                 fi
 724                 case "$base" in
 725                 *.sh|*.perl)
 726                         symlink_target=../unprocessed-script
 727                 esac
 728                 # create the link, or replace it if it is out of date
 729                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 730         }
 731
 732         # override all git executables in TEST_DIRECTORY/..
 733         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 734         mkdir -p "$GIT_VALGRIND"/bin
 735         for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
 736         do
 737                 make_valgrind_symlink $file
 738         done
 739         OLDIFS=$IFS
 740         IFS=:
 741         for path in $PATH
 742         do
 743                 ls "$path"/git-* 2> /dev/null |
 744                 while read file
 745                 do
 746                         make_valgrind_symlink "$file"
 747                 done
 748         done
 749         IFS=$OLDIFS
 750         PATH=$GIT_VALGRIND/bin:$PATH
 751         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 752         export GIT_VALGRIND
 753 elif test -n "$GIT_TEST_INSTALLED" ; then
 754         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 755         error "Cannot run git from $GIT_TEST_INSTALLED."
 756         PATH=$GIT_TEST_INSTALLED:$TEST_DIRECTORY/..:$PATH
 757         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 758 else # normal case, use ../bin-wrappers only unless $with_dashes:
 759         git_bin_dir="$TEST_DIRECTORY/../bin-wrappers"
 760         if ! test -x "$git_bin_dir/git" ; then
 761                 if test -z "$with_dashes" ; 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:$PATH"
 767         GIT_EXEC_PATH=$TEST_DIRECTORY/..
 768         if test -n "$with_dashes" ; then
 769                 PATH="$TEST_DIRECTORY/..:$PATH"
 770         fi
 771 fi
 772 GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 773 unset GIT_CONFIG
 774 GIT_CONFIG_NOSYSTEM=1
 775 GIT_CONFIG_NOGLOBAL=1
 776 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 777
 778 . ../GIT-BUILD-OPTIONS
 779
 780 if test -z "$GIT_TEST_CMP"
 781 then
 782         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 783         then
 784                 GIT_TEST_CMP="$DIFF -c"
 785         else
 786                 GIT_TEST_CMP="$DIFF -u"
 787         fi
 788 fi
 789
 790 GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 791 export GITPERLLIB
 792 test -d ../templates/blt || {
 793         error "You haven't built things yet, have you?"
 794 }
 795
 796 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 797 then
 798         GITPYTHONLIB="$(pwd)/../git_remote_helpers/build/lib"
 799         export GITPYTHONLIB
 800         test -d ../git_remote_helpers/build || {
 801                 error "You haven't built git_remote_helpers yet, have you?"
 802         }
 803 fi
 804
 805 if ! test -x ../test-chmtime; then
 806         echo >&2 'You need to build test-chmtime:'
 807         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 808         exit 1
 809 fi
 810
 811 # Test repository
 812 test="trash directory.$(basename "$0" .sh)"
 813 test -n "$root" && test="$root/$test"
 814 case "$test" in
 815 /*) TRASH_DIRECTORY="$test" ;;
 816  *) TRASH_DIRECTORY="$TEST_DIRECTORY/$test" ;;
 817 esac
 818 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 819 rm -fr "$test" || {
 820         GIT_EXIT_OK=t
 821         echo >&5 "FATAL: Cannot prepare test area"
 822         exit 1
 823 }
 824
 825 test_create_repo "$test"
 826 # Use -P to resolve symlinks in our working directory so that the cwd
 827 # in subprocesses like git equals our $PWD (for pathname comparisons).
 828 cd -P "$test" || exit 1
 829
 830 this_test=${0##*/}
 831 this_test=${this_test%%-*}
 832 for skp in $GIT_SKIP_TESTS
 833 do
 834         to_skip=
 835         for skp in $GIT_SKIP_TESTS
 836         do
 837                 case "$this_test" in
 838                 $skp)
 839                         to_skip=t
 840                 esac
 841         done
 842         case "$to_skip" in
 843         t)
 844                 say_color skip >&3 "skipping test $this_test altogether"
 845                 say_color skip "skip all tests in $this_test"
 846                 test_done
 847         esac
 848 done
 849
 850 # Provide an implementation of the 'yes' utility
 851 yes () {
 852         if test $# = 0
 853         then
 854                 y=y
 855         else
 856                 y="$*"
 857         fi
 858
 859         while echo "$y"
 860         do
 861                 :
 862         done
 863 }
 864
 865 # Fix some commands on Windows
 866 case $(uname -s) in
 867 *MINGW*)
 868         # Windows has its own (incompatible) sort and find
 869         sort () {
 870                 /usr/bin/sort "$@"
 871         }
 872         find () {
 873                 /usr/bin/find "$@"
 874         }
 875         sum () {
 876                 md5sum "$@"
 877         }
 878         # git sees Windows-style pwd
 879         pwd () {
 880                 builtin pwd -W
 881         }
 882         # no POSIX permissions
 883         # backslashes in pathspec are converted to '/'
 884         # exec does not inherit the PID
 885         ;;
 886 *)
 887         test_set_prereq POSIXPERM
 888         test_set_prereq BSLASHPSPEC
 889         test_set_prereq EXECKEEPSPID
 890         ;;
 891 esac
 892
 893 test -z "$NO_PERL" && test_set_prereq PERL
 894 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 895
 896 # test whether the filesystem supports symbolic links
 897 ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
 898 rm -f y