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 # for git on windows so stdin will not be misdetected as attached to a
  19 # terminal
  20 exec < /dev/null
  21
  22 # if --tee was passed, write the output not only to the terminal, but
  23 # additionally to the file test-results/$BASENAME.out, too.
  24 case "$GIT_TEST_TEE_STARTED, $* " in
  25 done,*)
  26         # do not redirect again
  27         ;;
  28 *' --tee '*|*' --va'*)
  29         mkdir -p test-results
  30         BASE=test-results/$(basename "$0" .sh)
  31         (GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
  32          echo $? > $BASE.exit) | tee $BASE.out
  33         test "$(cat $BASE.exit)" = 0
  34         exit
  35         ;;
  36 esac
  37
  38 # Keep the original TERM for say_color
  39 ORIGINAL_TERM=$TERM
  40
  41 # For repeatability, reset the environment to known value.
  42 LANG=C
  43 LC_ALL=C
  44 PAGER=cat
  45 TZ=UTC
  46 TERM=dumb
  47 export LANG LC_ALL PAGER TERM TZ
  48 EDITOR=:
  49 unset VISUAL
  50 unset GIT_EDITOR
  51 unset AUTHOR_DATE
  52 unset AUTHOR_EMAIL
  53 unset AUTHOR_NAME
  54 unset COMMIT_AUTHOR_EMAIL
  55 unset COMMIT_AUTHOR_NAME
  56 unset EMAIL
  57 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  58 unset GIT_AUTHOR_DATE
  59 GIT_AUTHOR_EMAIL=author@example.com
  60 GIT_AUTHOR_NAME='A U Thor'
  61 unset GIT_COMMITTER_DATE
  62 GIT_COMMITTER_EMAIL=committer@example.com
  63 GIT_COMMITTER_NAME='C O Mitter'
  64 unset GIT_DIFF_OPTS
  65 unset GIT_DIR
  66 unset GIT_WORK_TREE
  67 unset GIT_EXTERNAL_DIFF
  68 unset GIT_INDEX_FILE
  69 unset GIT_OBJECT_DIRECTORY
  70 unset GIT_CEILING_DIRECTORIES
  71 unset SHA1_FILE_DIRECTORIES
  72 unset SHA1_FILE_DIRECTORY
  73 unset GIT_NOTES_REF
  74 unset GIT_NOTES_DISPLAY_REF
  75 unset GIT_NOTES_REWRITE_REF
  76 unset GIT_NOTES_REWRITE_MODE
  77 GIT_MERGE_VERBOSITY=5
  78 export GIT_MERGE_VERBOSITY
  79 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  80 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  81 export EDITOR
  82
  83 # Protect ourselves from common misconfiguration to export
  84 # CDPATH into the environment
  85 unset CDPATH
  86
  87 unset GREP_OPTIONS
  88
  89 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  90         1|2|true)
  91                 echo "* warning: Some tests will not work if GIT_TRACE" \
  92                         "is set as to trace on STDERR ! *"
  93                 echo "* warning: Please set GIT_TRACE to something" \
  94                         "other than 1, 2 or true ! *"
  95                 ;;
  96 esac
  97
  98 # Convenience
  99 #
 100 # A regexp to match 5 and 40 hexdigits
 101 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 102 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 103
 104 # Each test should start with something like this, after copyright notices:
 105 #
 106 # test_description='Description of this test...
 107 # This test checks if command xyzzy does the right thing...
 108 # '
 109 # . ./test-lib.sh
 110 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 111                 TERM=$ORIGINAL_TERM &&
 112                 export TERM &&
 113                 [ -t 1 ] &&
 114                 tput bold >/dev/null 2>&1 &&
 115                 tput setaf 1 >/dev/null 2>&1 &&
 116                 tput sgr0 >/dev/null 2>&1
 117         ) &&
 118         color=t
 119
 120 while test "$#" -ne 0
 121 do
 122         case "$1" in
 123         -d|--d|--de|--deb|--debu|--debug)
 124                 debug=t; shift ;;
 125         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 126                 immediate=t; shift ;;
 127         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 128                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 129         -h|--h|--he|--hel|--help)
 130                 help=t; shift ;;
 131         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 132                 verbose=t; shift ;;
 133         -q|--q|--qu|--qui|--quie|--quiet)
 134                 quiet=t; shift ;;
 135         --with-dashes)
 136                 with_dashes=t; shift ;;
 137         --no-color)
 138                 color=; shift ;;
 139         --no-python)
 140                 # noop now...
 141                 shift ;;
 142         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 143                 valgrind=t; verbose=t; shift ;;
 144         --tee)
 145                 shift ;; # was handled already
 146         --root=*)
 147                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 148                 shift ;;
 149         *)
 150                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 151         esac
 152 done
 153
 154 if test -n "$color"; then
 155         say_color () {
 156                 (
 157                 TERM=$ORIGINAL_TERM
 158                 export TERM
 159                 case "$1" in
 160                         error) tput bold; tput setaf 1;; # bold red
 161                         skip)  tput bold; tput setaf 2;; # bold green
 162                         pass)  tput setaf 2;;            # green
 163                         info)  tput setaf 3;;            # brown
 164                         *) test -n "$quiet" && return;;
 165                 esac
 166                 shift
 167                 printf "%s" "$*"
 168                 tput sgr0
 169                 echo
 170                 )
 171         }
 172 else
 173         say_color() {
 174                 test -z "$1" && test -n "$quiet" && return
 175                 shift
 176                 echo "$*"
 177         }
 178 fi
 179
 180 error () {
 181         say_color error "error: $*"
 182         GIT_EXIT_OK=t
 183         exit 1
 184 }
 185
 186 say () {
 187         say_color info "$*"
 188 }
 189
 190 test "${test_description}" != "" ||
 191 error "Test script did not set test_description."
 192
 193 if test "$help" = "t"
 194 then
 195         echo "$test_description"
 196         exit 0
 197 fi
 198
 199 exec 5>&1
 200 if test "$verbose" = "t"
 201 then
 202         exec 4>&2 3>&1
 203 else
 204         exec 4>/dev/null 3>/dev/null
 205 fi
 206
 207 test_failure=0
 208 test_count=0
 209 test_fixed=0
 210 test_broken=0
 211 test_success=0
 212
 213 test_external_has_tap=0
 214
 215 die () {
 216         code=$?
 217         if test -n "$GIT_EXIT_OK"
 218         then
 219                 exit $code
 220         else
 221                 echo >&5 "FATAL: Unexpected exit with code $code"
 222                 exit 1
 223         fi
 224 }
 225
 226 GIT_EXIT_OK=
 227 trap 'die' EXIT
 228
 229 # The semantics of the editor variables are that of invoking
 230 # sh -c "$EDITOR \"$@\"" files ...
 231 #
 232 # If our trash directory contains shell metacharacters, they will be
 233 # interpreted if we just set $EDITOR directly, so do a little dance with
 234 # environment variables to work around this.
 235 #
 236 # In particular, quoting isn't enough, as the path may contain the same quote
 237 # that we're using.
 238 test_set_editor () {
 239         FAKE_EDITOR="$1"
 240         export FAKE_EDITOR
 241         EDITOR='"$FAKE_EDITOR"'
 242         export EDITOR
 243 }
 244
 245 test_decode_color () {
 246         sed     -e 's/.\[1m/<WHITE>/g' \
 247                 -e 's/.\[31m/<RED>/g' \
 248                 -e 's/.\[32m/<GREEN>/g' \
 249                 -e 's/.\[33m/<YELLOW>/g' \
 250                 -e 's/.\[34m/<BLUE>/g' \
 251                 -e 's/.\[35m/<MAGENTA>/g' \
 252                 -e 's/.\[36m/<CYAN>/g' \
 253                 -e 's/.\[m/<RESET>/g'
 254 }
 255
 256 q_to_nul () {
 257         perl -pe 'y/Q/\000/'
 258 }
 259
 260 q_to_cr () {
 261         tr Q '\015'
 262 }
 263
 264 append_cr () {
 265         sed -e 's/$/Q/' | tr Q '\015'
 266 }
 267
 268 remove_cr () {
 269         tr '\015' Q | sed -e 's/Q$//'
 270 }
 271
 272 test_tick () {
 273         if test -z "${test_tick+set}"
 274         then
 275                 test_tick=1112911993
 276         else
 277                 test_tick=$(($test_tick + 60))
 278         fi
 279         GIT_COMMITTER_DATE="$test_tick -0700"
 280         GIT_AUTHOR_DATE="$test_tick -0700"
 281         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 282 }
 283
 284 # Call test_commit with the arguments "<message> [<file> [<contents>]]"
 285 #
 286 # This will commit a file with the given contents and the given commit
 287 # message.  It will also add a tag with <message> as name.
 288 #
 289 # Both <file> and <contents> default to <message>.
 290
 291 test_commit () {
 292         file=${2:-"$1.t"}
 293         echo "${3-$1}" > "$file" &&
 294         git add "$file" &&
 295         test_tick &&
 296         git commit -m "$1" &&
 297         git tag "$1"
 298 }
 299
 300 # Call test_merge with the arguments "<message> <commit>", where <commit>
 301 # can be a tag pointing to the commit-to-merge.
 302
 303 test_merge () {
 304         test_tick &&
 305         git merge -m "$1" "$2" &&
 306         git tag "$1"
 307 }
 308
 309 # This function helps systems where core.filemode=false is set.
 310 # Use it instead of plain 'chmod +x' to set or unset the executable bit
 311 # of a file in the working directory and add it to the index.
 312
 313 test_chmod () {
 314         chmod "$@" &&
 315         git update-index --add "--chmod=$@"
 316 }
 317
 318 # Use test_set_prereq to tell that a particular prerequisite is available.
 319 # The prerequisite can later be checked for in two ways:
 320 #
 321 # - Explicitly using test_have_prereq.
 322 #
 323 # - Implicitly by specifying the prerequisite tag in the calls to
 324 #   test_expect_{success,failure,code}.
 325 #
 326 # The single parameter is the prerequisite tag (a simple word, in all
 327 # capital letters by convention).
 328
 329 test_set_prereq () {
 330         satisfied="$satisfied$1 "
 331 }
 332 satisfied=" "
 333
 334 test_have_prereq () {
 335         case $satisfied in
 336         *" $1 "*)
 337                 : yes, have it ;;
 338         *)
 339                 ! : nope ;;
 340         esac
 341 }
 342
 343 # You are not expected to call test_ok_ and test_failure_ directly, use
 344 # the text_expect_* functions instead.
 345
 346 test_ok_ () {
 347         test_success=$(($test_success + 1))
 348         say_color "" "ok $test_count - $@"
 349 }
 350
 351 test_failure_ () {
 352         test_failure=$(($test_failure + 1))
 353         say_color error "not ok - $test_count $1"
 354         shift
 355         echo "$@" | sed -e 's/^/#       /'
 356         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 357 }
 358
 359 test_known_broken_ok_ () {
 360         test_fixed=$(($test_fixed+1))
 361         say_color "" "ok $test_count - $@ # TODO known breakage"
 362 }
 363
 364 test_known_broken_failure_ () {
 365         test_broken=$(($test_broken+1))
 366         say_color skip "not ok $test_count - $@ # TODO known breakage"
 367 }
 368
 369 test_debug () {
 370         test "$debug" = "" || eval "$1"
 371 }
 372
 373 test_run_ () {
 374         test_cleanup=:
 375         eval >&3 2>&4 "$1"
 376         eval_ret=$?
 377         eval >&3 2>&4 "$test_cleanup"
 378         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"; then
 379                 echo ""
 380         fi
 381         return 0
 382 }
 383
 384 test_skip () {
 385         test_count=$(($test_count+1))
 386         to_skip=
 387         for skp in $GIT_SKIP_TESTS
 388         do
 389                 case $this_test.$test_count in
 390                 $skp)
 391                         to_skip=t
 392                         break
 393                 esac
 394         done
 395         if test -z "$to_skip" && test -n "$prereq" &&
 396            ! test_have_prereq "$prereq"
 397         then
 398                 to_skip=t
 399         fi
 400         case "$to_skip" in
 401         t)
 402                 say_color skip >&3 "skipping test: $@"
 403                 say_color skip "ok $test_count # skip $1"
 404                 : true
 405                 ;;
 406         *)
 407                 false
 408                 ;;
 409         esac
 410 }
 411
 412 test_expect_failure () {
 413         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 414         test "$#" = 2 ||
 415         error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
 416         if ! test_skip "$@"
 417         then
 418                 say >&3 "checking known breakage: $2"
 419                 test_run_ "$2"
 420                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 421                 then
 422                         test_known_broken_ok_ "$1"
 423                 else
 424                         test_known_broken_failure_ "$1"
 425                 fi
 426         fi
 427         echo >&3 ""
 428 }
 429
 430 test_expect_success () {
 431         test "$#" = 3 && { prereq=$1; shift; } || prereq=
 432         test "$#" = 2 ||
 433         error "bug in the test script: not 2 or 3 parameters to test-expect-success"
 434         if ! test_skip "$@"
 435         then
 436                 say >&3 "expecting success: $2"
 437                 test_run_ "$2"
 438                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 439                 then
 440                         test_ok_ "$1"
 441                 else
 442                         test_failure_ "$@"
 443                 fi
 444         fi
 445         echo >&3 ""
 446 }
 447
 448 test_expect_code () {
 449         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 450         test "$#" = 3 ||
 451         error "bug in the test script: not 3 or 4 parameters to test-expect-code"
 452         if ! test_skip "$@"
 453         then
 454                 say >&3 "expecting exit code $1: $3"
 455                 test_run_ "$3"
 456                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 457                 then
 458                         test_ok_ "$2"
 459                 else
 460                         test_failure_ "$@"
 461                 fi
 462         fi
 463         echo >&3 ""
 464 }
 465
 466 # test_external runs external test scripts that provide continuous
 467 # test output about their progress, and succeeds/fails on
 468 # zero/non-zero exit code.  It outputs the test output on stdout even
 469 # in non-verbose mode, and announces the external script with "# run
 470 # <n>: ..." before running it.  When providing relative paths, keep in
 471 # mind that all scripts run in "trash directory".
 472 # Usage: test_external description command arguments...
 473 # Example: test_external 'Perl API' perl ../path/to/test.pl
 474 test_external () {
 475         test "$#" = 4 && { prereq=$1; shift; } || prereq=
 476         test "$#" = 3 ||
 477         error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
 478         descr="$1"
 479         shift
 480         if ! test_skip "$descr" "$@"
 481         then
 482                 # Announce the script to reduce confusion about the
 483                 # test output that follows.
 484                 say_color "" "# run $test_count: $descr ($*)"
 485                 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
 486                 # to be able to use them in script
 487                 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
 488                 # Run command; redirect its stderr to &4 as in
 489                 # test_run_, but keep its stdout on our stdout even in
 490                 # non-verbose mode.
 491                 "$@" 2>&4
 492                 if [ "$?" = 0 ]
 493                 then
 494                         if test $test_external_has_tap -eq 0; then
 495                                 test_ok_ "$descr"
 496                         else
 497                                 say_color "" "# test_external test $descr was ok"
 498                                 test_success=$(($test_success + 1))
 499                         fi
 500                 else
 501                         if test $test_external_has_tap -eq 0; then
 502                                 test_failure_ "$descr" "$@"
 503                         else
 504                                 say_color error "# test_external test $descr failed: $@"
 505                                 test_failure=$(($test_failure + 1))
 506                         fi
 507                 fi
 508         fi
 509 }
 510
 511 # Like test_external, but in addition tests that the command generated
 512 # no output on stderr.
 513 test_external_without_stderr () {
 514         # The temporary file has no (and must have no) security
 515         # implications.
 516         tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 517         stderr="$tmp/git-external-stderr.$$.tmp"
 518         test_external "$@" 4> "$stderr"
 519         [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 520         descr="no stderr: $1"
 521         shift
 522         say >&3 "# expecting no stderr from previous command"
 523         if [ ! -s "$stderr" ]; then
 524                 rm "$stderr"
 525
 526                 if test $test_external_has_tap -eq 0; then
 527                         test_ok_ "$descr"
 528                 else
 529                         say_color "" "# test_external_without_stderr test $descr was ok"
 530                         test_success=$(($test_success + 1))
 531                 fi
 532         else
 533                 if [ "$verbose" = t ]; then
 534                         output=`echo; echo "# Stderr is:"; cat "$stderr"`
 535                 else
 536                         output=
 537                 fi
 538                 # rm first in case test_failure exits.
 539                 rm "$stderr"
 540                 if test $test_external_has_tap -eq 0; then
 541                         test_failure_ "$descr" "$@" "$output"
 542                 else
 543                         say_color error "# test_external_without_stderr test $descr failed: $@: $output"
 544                         test_failure=$(($test_failure + 1))
 545                 fi
 546         fi
 547 }
 548
 549 # This is not among top-level (test_expect_success | test_expect_failure)
 550 # but is a prefix that can be used in the test script, like:
 551 #
 552 #       test_expect_success 'complain and die' '
 553 #           do something &&
 554 #           do something else &&
 555 #           test_must_fail git checkout ../outerspace
 556 #       '
 557 #
 558 # Writing this as "! git checkout ../outerspace" is wrong, because
 559 # the failure could be due to a segv.  We want a controlled failure.
 560
 561 test_must_fail () {
 562         "$@"
 563         test $? -gt 0 -a $? -le 129 -o $? -gt 192
 564 }
 565
 566 # Similar to test_must_fail, but tolerates success, too.  This is
 567 # meant to be used in contexts like:
 568 #
 569 #       test_expect_success 'some command works without configuration' '
 570 #               test_might_fail git config --unset all.configuration &&
 571 #               do something
 572 #       '
 573 #
 574 # Writing "git config --unset all.configuration || :" would be wrong,
 575 # because we want to notice if it fails due to segv.
 576
 577 test_might_fail () {
 578         "$@"
 579         test $? -ge 0 -a $? -le 129 -o $? -gt 192
 580 }
 581
 582 # test_cmp is a helper function to compare actual and expected output.
 583 # You can use it like:
 584 #
 585 #       test_expect_success 'foo works' '
 586 #               echo expected >expected &&
 587 #               foo >actual &&
 588 #               test_cmp expected actual
 589 #       '
 590 #
 591 # This could be written as either "cmp" or "diff -u", but:
 592 # - cmp's output is not nearly as easy to read as diff -u
 593 # - not all diff versions understand "-u"
 594
 595 test_cmp() {
 596         $GIT_TEST_CMP "$@"
 597 }
 598
 599 # This function can be used to schedule some commands to be run
 600 # unconditionally at the end of the test to restore sanity:
 601 #
 602 #       test_expect_success 'test core.capslock' '
 603 #               git config core.capslock true &&
 604 #               test_when_finished "git config --unset core.capslock" &&
 605 #               hello world
 606 #       '
 607 #
 608 # That would be roughly equivalent to
 609 #
 610 #       test_expect_success 'test core.capslock' '
 611 #               git config core.capslock true &&
 612 #               hello world
 613 #               git config --unset core.capslock
 614 #       '
 615 #
 616 # except that the greeting and config --unset must both succeed for
 617 # the test to pass.
 618
 619 test_when_finished () {
 620         test_cleanup="{ $*
 621                 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
 622 }
 623
 624 # Most tests can use the created repository, but some may need to create more.
 625 # Usage: test_create_repo <directory>
 626 test_create_repo () {
 627         test "$#" = 1 ||
 628         error "bug in the test script: not 1 parameter to test-create-repo"
 629         owd=`pwd`
 630         repo="$1"
 631         mkdir -p "$repo"
 632         cd "$repo" || error "Cannot setup test environment"
 633         "$GIT_EXEC_PATH/git-init" "--template=$TEST_DIRECTORY/../templates/blt/" >&3 2>&4 ||
 634         error "cannot run git init -- have you built things yet?"
 635         mv .git/hooks .git/hooks-disabled
 636         cd "$owd"
 637 }
 638
 639 test_done () {
 640         GIT_EXIT_OK=t
 641         test_results_dir="$TEST_DIRECTORY/test-results"
 642         mkdir -p "$test_results_dir"
 643         test_results_path="$test_results_dir/${0%.sh}-$$.counts"
 644
 645         echo "total $test_count" >> $test_results_path
 646         echo "success $test_success" >> $test_results_path
 647         echo "fixed $test_fixed" >> $test_results_path
 648         echo "broken $test_broken" >> $test_results_path
 649         echo "failed $test_failure" >> $test_results_path
 650         echo "" >> $test_results_path
 651
 652         if test "$test_fixed" != 0
 653         then
 654                 say_color pass "# fixed $test_fixed known breakage(s)"
 655         fi
 656         if test "$test_broken" != 0
 657         then
 658                 say_color error "# still have $test_broken known breakage(s)"
 659                 msg="remaining $(($test_count-$test_broken)) test(s)"
 660         else
 661                 msg="$test_count test(s)"
 662         fi
 663         case "$test_failure" in
 664         0)
 665                 # Maybe print SKIP message
 666                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 667
 668                 if test $test_external_has_tap -eq 0; then
 669                         say_color pass "# passed all $msg"
 670                         say "1..$test_count$skip_all"
 671                 fi
 672
 673                 test -d "$remove_trash" &&
 674                 cd "$(dirname "$remove_trash")" &&
 675                 rm -rf "$(basename "$remove_trash")"
 676
 677                 exit 0 ;;
 678
 679         *)
 680                 if test $test_external_has_tap -eq 0; then
 681                         say_color error "# failed $test_failure among $msg"
 682                         say "1..$test_count"
 683                 fi
 684
 685                 exit 1 ;;
 686
 687         esac
 688 }
 689
 690 # Test the binaries we have just built.  The tests are kept in
 691 # t/ subdirectory and are run in 'trash directory' subdirectory.
 692 TEST_DIRECTORY=$(pwd)
 693 if test -n "$valgrind"
 694 then
 695         make_symlink () {
 696                 test -h "$2" &&
 697                 test "$1" = "$(readlink "$2")" || {
 698                         # be super paranoid
 699                         if mkdir "$2".lock
 700                         then
 701                                 rm -f "$2" &&
 702                                 ln -s "$1" "$2" &&
 703                                 rm -r "$2".lock
 704                         else
 705                                 while test -d "$2".lock
 706                                 do
 707                                         say "Waiting for lock on $2."
 708                                         sleep 1
 709                                 done
 710                         fi
 711                 }
 712         }
 713
 714         make_valgrind_symlink () {
 715                 # handle only executables
 716                 test -x "$1" || return
 717
 718                 base=$(basename "$1")
 719                 symlink_target=$TEST_DIRECTORY/../$base
 720                 # do not override scripts
 721                 if test -x "$symlink_target" &&
 722                     test ! -d "$symlink_target" &&
 723                     test "#!" != "$(head -c 2 < "$symlink_target")"
 724                 then
 725                         symlink_target=../valgrind.sh
 726                 fi
 727                 case "$base" in
 728                 *.sh|*.perl)
 729                         symlink_target=../unprocessed-script
 730                 esac
 731                 # create the link, or replace it if it is out of date
 732                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 733         }
 734
 735         # override all git executables in TEST_DIRECTORY/..
 736         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 737         mkdir -p "$GIT_VALGRIND"/bin
 738         for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
 739         do
 740                 make_valgrind_symlink $file
 741         done
 742         OLDIFS=$IFS
 743         IFS=:
 744         for path in $PATH
 745         do
 746                 ls "$path"/git-* 2> /dev/null |
 747                 while read file
 748                 do
 749                         make_valgrind_symlink "$file"
 750                 done
 751         done
 752         IFS=$OLDIFS
 753         PATH=$GIT_VALGRIND/bin:$PATH
 754         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 755         export GIT_VALGRIND
 756 elif test -n "$GIT_TEST_INSTALLED" ; then
 757         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 758         error "Cannot run git from $GIT_TEST_INSTALLED."
 759         PATH=$GIT_TEST_INSTALLED:$TEST_DIRECTORY/..:$PATH
 760         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 761 else # normal case, use ../bin-wrappers only unless $with_dashes:
 762         git_bin_dir="$TEST_DIRECTORY/../bin-wrappers"
 763         if ! test -x "$git_bin_dir/git" ; then
 764                 if test -z "$with_dashes" ; then
 765                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 766                 fi
 767                 with_dashes=t
 768         fi
 769         PATH="$git_bin_dir:$PATH"
 770         GIT_EXEC_PATH=$TEST_DIRECTORY/..
 771         if test -n "$with_dashes" ; then
 772                 PATH="$TEST_DIRECTORY/..:$PATH"
 773         fi
 774 fi
 775 GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 776 unset GIT_CONFIG
 777 GIT_CONFIG_NOSYSTEM=1
 778 GIT_CONFIG_NOGLOBAL=1
 779 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 780
 781 . ../GIT-BUILD-OPTIONS
 782
 783 DIFF="${DIFF:-diff}"
 784
 785 if test -z "$GIT_TEST_CMP"
 786 then
 787         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 788         then
 789                 GIT_TEST_CMP="$DIFF -c"
 790         else
 791                 GIT_TEST_CMP="$DIFF -u"
 792         fi
 793 fi
 794
 795 GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 796 export GITPERLLIB
 797 test -d ../templates/blt || {
 798         error "You haven't built things yet, have you?"
 799 }
 800
 801 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 802 then
 803         GITPYTHONLIB="$(pwd)/../git_remote_helpers/build/lib"
 804         export GITPYTHONLIB
 805         test -d ../git_remote_helpers/build || {
 806                 error "You haven't built git_remote_helpers yet, have you?"
 807         }
 808 fi
 809
 810 if ! test -x ../test-chmtime; then
 811         echo >&2 'You need to build test-chmtime:'
 812         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 813         exit 1
 814 fi
 815
 816 # Test repository
 817 test="trash directory.$(basename "$0" .sh)"
 818 test -n "$root" && test="$root/$test"
 819 case "$test" in
 820 /*) TRASH_DIRECTORY="$test" ;;
 821  *) TRASH_DIRECTORY="$TEST_DIRECTORY/$test" ;;
 822 esac
 823 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 824 rm -fr "$test" || {
 825         GIT_EXIT_OK=t
 826         echo >&5 "FATAL: Cannot prepare test area"
 827         exit 1
 828 }
 829
 830 test_create_repo "$test"
 831 # Use -P to resolve symlinks in our working directory so that the cwd
 832 # in subprocesses like git equals our $PWD (for pathname comparisons).
 833 cd -P "$test" || exit 1
 834
 835 this_test=${0##*/}
 836 this_test=${this_test%%-*}
 837 for skp in $GIT_SKIP_TESTS
 838 do
 839         case "$this_test" in
 840         $skp)
 841                 say_color skip >&3 "skipping test $this_test altogether"
 842                 skip_all="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         test_set_prereq MINGW
 883         ;;
 884 *)
 885         test_set_prereq POSIXPERM
 886         test_set_prereq BSLASHPSPEC
 887         test_set_prereq EXECKEEPSPID
 888         test_set_prereq NONMINGW
 889         ;;
 890 esac
 891
 892 test -z "$NO_PERL" && test_set_prereq PERL
 893 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 894
 895 # test whether the filesystem supports symbolic links
 896 ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
 897 rm -f y