t/test-lib.sh

   1 # Test framework for git.  See t/README for usage.
   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 # Keep the original TERM for say_color
  23 ORIGINAL_TERM=$TERM
  24
  25 # Test the binaries we have just built.  The tests are kept in
  26 # t/ subdirectory and are run in 'trash directory' subdirectory.
  27 if test -z "$TEST_DIRECTORY"
  28 then
  29         # We allow tests to override this, in case they want to run tests
  30         # outside of t/, e.g. for running tests on the test library
  31         # itself.
  32         TEST_DIRECTORY=$(pwd)
  33 else
  34         # ensure that TEST_DIRECTORY is an absolute path so that it
  35         # is valid even if the current working directory is changed
  36         TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
  37 fi
  38 if test -z "$TEST_OUTPUT_DIRECTORY"
  39 then
  40         # Similarly, override this to store the test-results subdir
  41         # elsewhere
  42         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  43 fi
  44 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
  45
  46 ################################################################
  47 # It appears that people try to run tests without building...
  48 "$GIT_BUILD_DIR/git" >/dev/null
  49 if test $? != 1
  50 then
  51         echo >&2 'error: you do not seem to have built git yet.'
  52         exit 1
  53 fi
  54
  55 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  56 export PERL_PATH SHELL_PATH
  57
  58 # if --tee was passed, write the output not only to the terminal, but
  59 # additionally to the file test-results/$BASENAME.out, too.
  60 case "$GIT_TEST_TEE_STARTED, $* " in
  61 done,*)
  62         # do not redirect again
  63         ;;
  64 *' --tee '*|*' --va'*)
  65         mkdir -p "$TEST_OUTPUT_DIRECTORY/test-results"
  66         BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
  67         (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
  68          echo $? > $BASE.exit) | tee $BASE.out
  69         test "$(cat $BASE.exit)" = 0
  70         exit
  71         ;;
  72 esac
  73
  74 # For repeatability, reset the environment to known value.
  75 LANG=C
  76 LC_ALL=C
  77 PAGER=cat
  78 TZ=UTC
  79 TERM=dumb
  80 export LANG LC_ALL PAGER TERM TZ
  81 EDITOR=:
  82 # A call to "unset" with no arguments causes at least Solaris 10
  83 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
  84 # deriving from the command substitution clustered with the other
  85 # ones.
  86 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
  87         my @env = keys %ENV;
  88         my $ok = join("|", qw(
  89                 TRACE
  90                 DEBUG
  91                 USE_LOOKUP
  92                 TEST
  93                 .*_TEST
  94                 PROVE
  95                 VALGRIND
  96                 UNZIP
  97                 PERF_
  98         ));
  99         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 100         print join("\n", @vars);
 101 ')
 102 unset XDG_CONFIG_HOME
 103 unset GITPERLLIB
 104 GIT_AUTHOR_EMAIL=author@example.com
 105 GIT_AUTHOR_NAME='A U Thor'
 106 GIT_COMMITTER_EMAIL=committer@example.com
 107 GIT_COMMITTER_NAME='C O Mitter'
 108 GIT_MERGE_VERBOSITY=5
 109 GIT_MERGE_AUTOEDIT=no
 110 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 111 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 112 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 113 export EDITOR
 114
 115 # Add libc MALLOC and MALLOC_PERTURB test
 116 # only if we are not executing the test with valgrind
 117 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 118    test -n "$TEST_NO_MALLOC_CHECK"
 119 then
 120         setup_malloc_check () {
 121                 : nothing
 122         }
 123         teardown_malloc_check () {
 124                 : nothing
 125         }
 126 else
 127         setup_malloc_check () {
 128                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 129                 export MALLOC_CHECK_ MALLOC_PERTURB_
 130         }
 131         teardown_malloc_check () {
 132                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 133         }
 134 fi
 135
 136 # Protect ourselves from common misconfiguration to export
 137 # CDPATH into the environment
 138 unset CDPATH
 139
 140 unset GREP_OPTIONS
 141 unset UNZIP
 142
 143 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 144 1|2|true)
 145         echo "* warning: Some tests will not work if GIT_TRACE" \
 146                 "is set as to trace on STDERR ! *"
 147         echo "* warning: Please set GIT_TRACE to something" \
 148                 "other than 1, 2 or true ! *"
 149         ;;
 150 esac
 151
 152 # Convenience
 153 #
 154 # A regexp to match 5 and 40 hexdigits
 155 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 156 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 157
 158 # Zero SHA-1
 159 _z40=0000000000000000000000000000000000000000
 160
 161 # Line feed
 162 LF='
 163 '
 164
 165 export _x05 _x40 _z40 LF
 166
 167 # Each test should start with something like this, after copyright notices:
 168 #
 169 # test_description='Description of this test...
 170 # This test checks if command xyzzy does the right thing...
 171 # '
 172 # . ./test-lib.sh
 173 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 174                 TERM=$ORIGINAL_TERM &&
 175                 export TERM &&
 176                 [ -t 1 ] &&
 177                 tput bold >/dev/null 2>&1 &&
 178                 tput setaf 1 >/dev/null 2>&1 &&
 179                 tput sgr0 >/dev/null 2>&1
 180         ) &&
 181         color=t
 182
 183 while test "$#" -ne 0
 184 do
 185         case "$1" in
 186         -d|--d|--de|--deb|--debu|--debug)
 187                 debug=t; shift ;;
 188         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 189                 immediate=t; shift ;;
 190         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 191                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 192         -h|--h|--he|--hel|--help)
 193                 help=t; shift ;;
 194         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 195                 verbose=t; shift ;;
 196         --verbose-only=*)
 197                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 198                 shift ;;
 199         -q|--q|--qu|--qui|--quie|--quiet)
 200                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 201                 # passed without the ok/not ok details is always an error.
 202                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 203         --with-dashes)
 204                 with_dashes=t; shift ;;
 205         --no-color)
 206                 color=; shift ;;
 207         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 208                 valgrind=memcheck
 209                 shift ;;
 210         --valgrind=*)
 211                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 212                 shift ;;
 213         --valgrind-only=*)
 214                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 215                 shift ;;
 216         --tee)
 217                 shift ;; # was handled already
 218         --root=*)
 219                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 220                 shift ;;
 221         *)
 222                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 223         esac
 224 done
 225
 226 if test -n "$valgrind_only"
 227 then
 228         test -z "$valgrind" && valgrind=memcheck
 229         test -z "$verbose" && verbose_only="$valgrind_only"
 230 elif test -n "$valgrind"
 231 then
 232         verbose=t
 233 fi
 234
 235 if test -n "$color"
 236 then
 237         say_color () {
 238                 (
 239                 TERM=$ORIGINAL_TERM
 240                 export TERM
 241                 case "$1" in
 242                 error)
 243                         tput bold; tput setaf 1;; # bold red
 244                 skip)
 245                         tput setaf 4;; # blue
 246                 warn)
 247                         tput setaf 3;; # brown/yellow
 248                 pass)
 249                         tput setaf 2;; # green
 250                 info)
 251                         tput setaf 6;; # cyan
 252                 *)
 253                         test -n "$quiet" && return;;
 254                 esac
 255                 shift
 256                 printf "%s" "$*"
 257                 tput sgr0
 258                 echo
 259                 )
 260         }
 261 else
 262         say_color() {
 263                 test -z "$1" && test -n "$quiet" && return
 264                 shift
 265                 printf "%s\n" "$*"
 266         }
 267 fi
 268
 269 error () {
 270         say_color error "error: $*"
 271         GIT_EXIT_OK=t
 272         exit 1
 273 }
 274
 275 say () {
 276         say_color info "$*"
 277 }
 278
 279 test "${test_description}" != "" ||
 280 error "Test script did not set test_description."
 281
 282 if test "$help" = "t"
 283 then
 284         printf '%s\n' "$test_description"
 285         exit 0
 286 fi
 287
 288 exec 5>&1
 289 exec 6<&0
 290 if test "$verbose" = "t"
 291 then
 292         exec 4>&2 3>&1
 293 else
 294         exec 4>/dev/null 3>/dev/null
 295 fi
 296
 297 test_failure=0
 298 test_count=0
 299 test_fixed=0
 300 test_broken=0
 301 test_success=0
 302
 303 test_external_has_tap=0
 304
 305 die () {
 306         code=$?
 307         if test -n "$GIT_EXIT_OK"
 308         then
 309                 exit $code
 310         else
 311                 echo >&5 "FATAL: Unexpected exit with code $code"
 312                 exit 1
 313         fi
 314 }
 315
 316 GIT_EXIT_OK=
 317 trap 'die' EXIT
 318
 319 # The user-facing functions are loaded from a separate file so that
 320 # test_perf subshells can have them too
 321 . "$TEST_DIRECTORY/test-lib-functions.sh"
 322
 323 # You are not expected to call test_ok_ and test_failure_ directly, use
 324 # the test_expect_* functions instead.
 325
 326 test_ok_ () {
 327         test_success=$(($test_success + 1))
 328         say_color "" "ok $test_count - $@"
 329 }
 330
 331 test_failure_ () {
 332         test_failure=$(($test_failure + 1))
 333         say_color error "not ok $test_count - $1"
 334         shift
 335         printf '%s\n' "$*" | sed -e 's/^/#      /'
 336         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 337 }
 338
 339 test_known_broken_ok_ () {
 340         test_fixed=$(($test_fixed+1))
 341         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 342 }
 343
 344 test_known_broken_failure_ () {
 345         test_broken=$(($test_broken+1))
 346         say_color warn "not ok $test_count - $@ # TODO known breakage"
 347 }
 348
 349 test_debug () {
 350         test "$debug" = "" || eval "$1"
 351 }
 352
 353 match_pattern_list () {
 354         arg="$1"
 355         shift
 356         test -z "$*" && return 1
 357         for pattern_
 358         do
 359                 case "$arg" in
 360                 $pattern_)
 361                         return 0
 362                 esac
 363         done
 364         return 1
 365 }
 366
 367 maybe_teardown_verbose () {
 368         test -z "$verbose_only" && return
 369         exec 4>/dev/null 3>/dev/null
 370         verbose=
 371 }
 372
 373 last_verbose=t
 374 maybe_setup_verbose () {
 375         test -z "$verbose_only" && return
 376         if match_pattern_list $test_count $verbose_only
 377         then
 378                 exec 4>&2 3>&1
 379                 # Emit a delimiting blank line when going from
 380                 # non-verbose to verbose.  Within verbose mode the
 381                 # delimiter is printed by test_expect_*.  The choice
 382                 # of the initial $last_verbose is such that before
 383                 # test 1, we do not print it.
 384                 test -z "$last_verbose" && echo >&3 ""
 385                 verbose=t
 386         else
 387                 exec 4>/dev/null 3>/dev/null
 388                 verbose=
 389         fi
 390         last_verbose=$verbose
 391 }
 392
 393 maybe_teardown_valgrind () {
 394         test -z "$GIT_VALGRIND" && return
 395         GIT_VALGRIND_ENABLED=
 396 }
 397
 398 maybe_setup_valgrind () {
 399         test -z "$GIT_VALGRIND" && return
 400         if test -z "$valgrind_only"
 401         then
 402                 GIT_VALGRIND_ENABLED=t
 403                 return
 404         fi
 405         GIT_VALGRIND_ENABLED=
 406         if match_pattern_list $test_count $valgrind_only
 407         then
 408                 GIT_VALGRIND_ENABLED=t
 409         fi
 410 }
 411
 412 test_eval_ () {
 413         # This is a separate function because some tests use
 414         # "return" to end a test_expect_success block early.
 415         eval </dev/null >&3 2>&4 "$*"
 416 }
 417
 418 test_run_ () {
 419         test_cleanup=:
 420         expecting_failure=$2
 421         setup_malloc_check
 422         test_eval_ "$1"
 423         eval_ret=$?
 424         teardown_malloc_check
 425
 426         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 427         then
 428                 setup_malloc_check
 429                 test_eval_ "$test_cleanup"
 430                 teardown_malloc_check
 431         fi
 432         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 433         then
 434                 echo ""
 435         fi
 436         return "$eval_ret"
 437 }
 438
 439 test_start_ () {
 440         test_count=$(($test_count+1))
 441         maybe_setup_verbose
 442         maybe_setup_valgrind
 443 }
 444
 445 test_finish_ () {
 446         echo >&3 ""
 447         maybe_teardown_valgrind
 448         maybe_teardown_verbose
 449 }
 450
 451 test_skip () {
 452         to_skip=
 453         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 454         then
 455                 to_skip=t
 456         fi
 457         if test -z "$to_skip" && test -n "$test_prereq" &&
 458            ! test_have_prereq "$test_prereq"
 459         then
 460                 to_skip=t
 461         fi
 462         case "$to_skip" in
 463         t)
 464                 of_prereq=
 465                 if test "$missing_prereq" != "$test_prereq"
 466                 then
 467                         of_prereq=" of $test_prereq"
 468                 fi
 469
 470                 say_color skip >&3 "skipping test: $@"
 471                 say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 472                 : true
 473                 ;;
 474         *)
 475                 false
 476                 ;;
 477         esac
 478 }
 479
 480 # stub; perf-lib overrides it
 481 test_at_end_hook_ () {
 482         :
 483 }
 484
 485 test_done () {
 486         GIT_EXIT_OK=t
 487
 488         if test -z "$HARNESS_ACTIVE"
 489         then
 490                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 491                 mkdir -p "$test_results_dir"
 492                 base=${0##*/}
 493                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 494
 495                 cat >>"$test_results_path" <<-EOF
 496                 total $test_count
 497                 success $test_success
 498                 fixed $test_fixed
 499                 broken $test_broken
 500                 failed $test_failure
 501
 502                 EOF
 503         fi
 504
 505         if test "$test_fixed" != 0
 506         then
 507                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 508         fi
 509         if test "$test_broken" != 0
 510         then
 511                 say_color warn "# still have $test_broken known breakage(s)"
 512         fi
 513         if test "$test_broken" != 0 || test "$test_fixed" != 0
 514         then
 515                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 516                 msg="remaining $test_remaining test(s)"
 517         else
 518                 test_remaining=$test_count
 519                 msg="$test_count test(s)"
 520         fi
 521         case "$test_failure" in
 522         0)
 523                 # Maybe print SKIP message
 524                 if test -n "$skip_all" && test $test_count -gt 0
 525                 then
 526                         error "Can't use skip_all after running some tests"
 527                 fi
 528                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 529
 530                 if test $test_external_has_tap -eq 0
 531                 then
 532                         if test $test_remaining -gt 0
 533                         then
 534                                 say_color pass "# passed all $msg"
 535                         fi
 536                         say "1..$test_count$skip_all"
 537                 fi
 538
 539                 test -d "$remove_trash" &&
 540                 cd "$(dirname "$remove_trash")" &&
 541                 rm -rf "$(basename "$remove_trash")"
 542
 543                 test_at_end_hook_
 544
 545                 exit 0 ;;
 546
 547         *)
 548                 if test $test_external_has_tap -eq 0
 549                 then
 550                         say_color error "# failed $test_failure among $msg"
 551                         say "1..$test_count"
 552                 fi
 553
 554                 exit 1 ;;
 555
 556         esac
 557 }
 558
 559 if test -n "$valgrind"
 560 then
 561         make_symlink () {
 562                 test -h "$2" &&
 563                 test "$1" = "$(readlink "$2")" || {
 564                         # be super paranoid
 565                         if mkdir "$2".lock
 566                         then
 567                                 rm -f "$2" &&
 568                                 ln -s "$1" "$2" &&
 569                                 rm -r "$2".lock
 570                         else
 571                                 while test -d "$2".lock
 572                                 do
 573                                         say "Waiting for lock on $2."
 574                                         sleep 1
 575                                 done
 576                         fi
 577                 }
 578         }
 579
 580         make_valgrind_symlink () {
 581                 # handle only executables, unless they are shell libraries that
 582                 # need to be in the exec-path.
 583                 test -x "$1" ||
 584                 test "# " = "$(head -c 2 <"$1")" ||
 585                 return;
 586
 587                 base=$(basename "$1")
 588                 symlink_target=$GIT_BUILD_DIR/$base
 589                 # do not override scripts
 590                 if test -x "$symlink_target" &&
 591                     test ! -d "$symlink_target" &&
 592                     test "#!" != "$(head -c 2 < "$symlink_target")"
 593                 then
 594                         symlink_target=../valgrind.sh
 595                 fi
 596                 case "$base" in
 597                 *.sh|*.perl)
 598                         symlink_target=../unprocessed-script
 599                 esac
 600                 # create the link, or replace it if it is out of date
 601                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 602         }
 603
 604         # override all git executables in TEST_DIRECTORY/..
 605         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 606         mkdir -p "$GIT_VALGRIND"/bin
 607         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 608         do
 609                 make_valgrind_symlink $file
 610         done
 611         # special-case the mergetools loadables
 612         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 613         OLDIFS=$IFS
 614         IFS=:
 615         for path in $PATH
 616         do
 617                 ls "$path"/git-* 2> /dev/null |
 618                 while read file
 619                 do
 620                         make_valgrind_symlink "$file"
 621                 done
 622         done
 623         IFS=$OLDIFS
 624         PATH=$GIT_VALGRIND/bin:$PATH
 625         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 626         export GIT_VALGRIND
 627         GIT_VALGRIND_MODE="$valgrind"
 628         export GIT_VALGRIND_MODE
 629         GIT_VALGRIND_ENABLED=t
 630         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 631         export GIT_VALGRIND_ENABLED
 632 elif test -n "$GIT_TEST_INSTALLED"
 633 then
 634         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 635         error "Cannot run git from $GIT_TEST_INSTALLED."
 636         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 637         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 638 else # normal case, use ../bin-wrappers only unless $with_dashes:
 639         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 640         if ! test -x "$git_bin_dir/git"
 641         then
 642                 if test -z "$with_dashes"
 643                 then
 644                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 645                 fi
 646                 with_dashes=t
 647         fi
 648         PATH="$git_bin_dir:$PATH"
 649         GIT_EXEC_PATH=$GIT_BUILD_DIR
 650         if test -n "$with_dashes"
 651         then
 652                 PATH="$GIT_BUILD_DIR:$PATH"
 653         fi
 654 fi
 655 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 656 unset GIT_CONFIG
 657 GIT_CONFIG_NOSYSTEM=1
 658 GIT_ATTR_NOSYSTEM=1
 659 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 660
 661 if test -z "$GIT_TEST_CMP"
 662 then
 663         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 664         then
 665                 GIT_TEST_CMP="$DIFF -c"
 666         else
 667                 GIT_TEST_CMP="$DIFF -u"
 668         fi
 669 fi
 670
 671 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 672 export GITPERLLIB
 673 test -d "$GIT_BUILD_DIR"/templates/blt || {
 674         error "You haven't built things yet, have you?"
 675 }
 676
 677 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 678 then
 679         echo >&2 'You need to build test-chmtime:'
 680         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 681         exit 1
 682 fi
 683
 684 # Test repository
 685 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 686 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 687 case "$TRASH_DIRECTORY" in
 688 /*) ;; # absolute path is good
 689  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 690 esac
 691 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 692 rm -fr "$TRASH_DIRECTORY" || {
 693         GIT_EXIT_OK=t
 694         echo >&5 "FATAL: Cannot prepare test area"
 695         exit 1
 696 }
 697
 698 HOME="$TRASH_DIRECTORY"
 699 export HOME
 700
 701 if test -z "$TEST_NO_CREATE_REPO"
 702 then
 703         test_create_repo "$TRASH_DIRECTORY"
 704 else
 705         mkdir -p "$TRASH_DIRECTORY"
 706 fi
 707 # Use -P to resolve symlinks in our working directory so that the cwd
 708 # in subprocesses like git equals our $PWD (for pathname comparisons).
 709 cd -P "$TRASH_DIRECTORY" || exit 1
 710
 711 this_test=${0##*/}
 712 this_test=${this_test%%-*}
 713 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 714 then
 715         say_color info >&3 "skipping test $this_test altogether"
 716         skip_all="skip all tests in $this_test"
 717         test_done
 718 fi
 719
 720 # Provide an implementation of the 'yes' utility
 721 yes () {
 722         if test $# = 0
 723         then
 724                 y=y
 725         else
 726                 y="$*"
 727         fi
 728
 729         while echo "$y"
 730         do
 731                 :
 732         done
 733 }
 734
 735 # Fix some commands on Windows
 736 case $(uname -s) in
 737 *MINGW*)
 738         # Windows has its own (incompatible) sort and find
 739         sort () {
 740                 /usr/bin/sort "$@"
 741         }
 742         find () {
 743                 /usr/bin/find "$@"
 744         }
 745         sum () {
 746                 md5sum "$@"
 747         }
 748         # git sees Windows-style pwd
 749         pwd () {
 750                 builtin pwd -W
 751         }
 752         # no POSIX permissions
 753         # backslashes in pathspec are converted to '/'
 754         # exec does not inherit the PID
 755         test_set_prereq MINGW
 756         test_set_prereq NOT_CYGWIN
 757         test_set_prereq NATIVE_CRLF
 758         test_set_prereq SED_STRIPS_CR
 759         test_set_prereq GREP_STRIPS_CR
 760         GIT_TEST_CMP=mingw_test_cmp
 761         ;;
 762 *CYGWIN*)
 763         test_set_prereq POSIXPERM
 764         test_set_prereq EXECKEEPSPID
 765         test_set_prereq NOT_MINGW
 766         test_set_prereq CYGWIN
 767         test_set_prereq SED_STRIPS_CR
 768         test_set_prereq GREP_STRIPS_CR
 769         ;;
 770 *)
 771         test_set_prereq POSIXPERM
 772         test_set_prereq BSLASHPSPEC
 773         test_set_prereq EXECKEEPSPID
 774         test_set_prereq NOT_MINGW
 775         test_set_prereq NOT_CYGWIN
 776         ;;
 777 esac
 778
 779 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 780 test -z "$NO_PERL" && test_set_prereq PERL
 781 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 782 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 783 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 784
 785 # Can we rely on git's output in the C locale?
 786 if test -n "$GETTEXT_POISON"
 787 then
 788         GIT_GETTEXT_POISON=YesPlease
 789         export GIT_GETTEXT_POISON
 790         test_set_prereq GETTEXT_POISON
 791 else
 792         test_set_prereq C_LOCALE_OUTPUT
 793 fi
 794
 795 # Use this instead of test_cmp to compare files that contain expected and
 796 # actual output from git commands that can be translated.  When running
 797 # under GETTEXT_POISON this pretends that the command produced expected
 798 # results.
 799 test_i18ncmp () {
 800         test -n "$GETTEXT_POISON" || test_cmp "$@"
 801 }
 802
 803 # Use this instead of "grep expected-string actual" to see if the
 804 # output from a git command that can be translated either contains an
 805 # expected string, or does not contain an unwanted one.  When running
 806 # under GETTEXT_POISON this pretends that the command produced expected
 807 # results.
 808 test_i18ngrep () {
 809         if test -n "$GETTEXT_POISON"
 810         then
 811             : # pretend success
 812         elif test "x!" = "x$1"
 813         then
 814                 shift
 815                 ! grep "$@"
 816         else
 817                 grep "$@"
 818         fi
 819 }
 820
 821 test_lazy_prereq PIPE '
 822         # test whether the filesystem supports FIFOs
 823         case $(uname -s) in
 824         CYGWIN*)
 825                 false
 826                 ;;
 827         *)
 828                 rm -f testfifo && mkfifo testfifo
 829                 ;;
 830         esac
 831 '
 832
 833 test_lazy_prereq SYMLINKS '
 834         # test whether the filesystem supports symbolic links
 835         ln -s x y && test -h y
 836 '
 837
 838 test_lazy_prereq FILEMODE '
 839         test "$(git config --bool core.filemode)" = true
 840 '
 841
 842 test_lazy_prereq CASE_INSENSITIVE_FS '
 843         echo good >CamelCase &&
 844         echo bad >camelcase &&
 845         test "$(cat CamelCase)" != good
 846 '
 847
 848 test_lazy_prereq UTF8_NFD_TO_NFC '
 849         # check whether FS converts nfd unicode to nfc
 850         auml=$(printf "\303\244")
 851         aumlcdiar=$(printf "\141\314\210")
 852         >"$auml" &&
 853         case "$(echo *)" in
 854         "$aumlcdiar")
 855                 true ;;
 856         *)
 857                 false ;;
 858         esac
 859 '
 860
 861 test_lazy_prereq AUTOIDENT '
 862         sane_unset GIT_AUTHOR_NAME &&
 863         sane_unset GIT_AUTHOR_EMAIL &&
 864         git var GIT_AUTHOR_IDENT
 865 '
 866
 867 # When the tests are run as root, permission tests will report that
 868 # things are writable when they shouldn't be.
 869 test -w / || test_set_prereq SANITY
 870
 871 GIT_UNZIP=${GIT_UNZIP:-unzip}
 872 test_lazy_prereq UNZIP '
 873         "$GIT_UNZIP" -v
 874         test $? -ne 127
 875 '