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 # Keep the original TERM for say_color
  19 ORIGINAL_TERM=$TERM
  20
  21 # Test the binaries we have just built.  The tests are kept in
  22 # t/ subdirectory and are run in 'trash directory' subdirectory.
  23 if test -z "$TEST_DIRECTORY"
  24 then
  25         # We allow tests to override this, in case they want to run tests
  26         # outside of t/, e.g. for running tests on the test library
  27         # itself.
  28         TEST_DIRECTORY=$(pwd)
  29 else
  30         # ensure that TEST_DIRECTORY is an absolute path so that it
  31         # is valid even if the current working directory is changed
  32         TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
  33 fi
  34 if test -z "$TEST_OUTPUT_DIRECTORY"
  35 then
  36         # Similarly, override this to store the test-results subdir
  37         # elsewhere
  38         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  39 fi
  40 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
  41
  42 ################################################################
  43 # It appears that people try to run tests without building...
  44 "$GIT_BUILD_DIR/git" >/dev/null
  45 if test $? != 1
  46 then
  47         echo >&2 'error: you do not seem to have built git yet.'
  48         exit 1
  49 fi
  50
  51 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  52 export PERL_PATH SHELL_PATH
  53
  54 # if --tee was passed, write the output not only to the terminal, but
  55 # additionally to the file test-results/$BASENAME.out, too.
  56 case "$GIT_TEST_TEE_STARTED, $* " in
  57 done,*)
  58         # do not redirect again
  59         ;;
  60 *' --tee '*|*' --va'*)
  61         mkdir -p "$TEST_OUTPUT_DIRECTORY/test-results"
  62         BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
  63         (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
  64          echo $? > $BASE.exit) | tee $BASE.out
  65         test "$(cat $BASE.exit)" = 0
  66         exit
  67         ;;
  68 esac
  69
  70 # For repeatability, reset the environment to known value.
  71 LANG=C
  72 LC_ALL=C
  73 PAGER=cat
  74 TZ=UTC
  75 TERM=dumb
  76 export LANG LC_ALL PAGER TERM TZ
  77 EDITOR=:
  78 # A call to "unset" with no arguments causes at least Solaris 10
  79 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
  80 # deriving from the command substitution clustered with the other
  81 # ones.
  82 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
  83         my @env = keys %ENV;
  84         my $ok = join("|", qw(
  85                 TRACE
  86                 DEBUG
  87                 USE_LOOKUP
  88                 TEST
  89                 .*_TEST
  90                 PROVE
  91                 VALGRIND
  92                 UNZIP
  93                 PERF_
  94         ));
  95         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
  96         print join("\n", @vars);
  97 ')
  98 unset XDG_CONFIG_HOME
  99 unset GITPERLLIB
 100 GIT_AUTHOR_EMAIL=author@example.com
 101 GIT_AUTHOR_NAME='A U Thor'
 102 GIT_COMMITTER_EMAIL=committer@example.com
 103 GIT_COMMITTER_NAME='C O Mitter'
 104 GIT_MERGE_VERBOSITY=5
 105 GIT_MERGE_AUTOEDIT=no
 106 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 107 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 108 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 109 export EDITOR
 110
 111 # Add libc MALLOC and MALLOC_PERTURB test
 112 # only if we are not executing the test with valgrind
 113 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 114    test -n "$TEST_NO_MALLOC_CHECK"
 115 then
 116         setup_malloc_check () {
 117                 : nothing
 118         }
 119         teardown_malloc_check () {
 120                 : nothing
 121         }
 122 else
 123         setup_malloc_check () {
 124                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 125                 export MALLOC_CHECK_ MALLOC_PERTURB_
 126         }
 127         teardown_malloc_check () {
 128                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 129         }
 130 fi
 131
 132 # Protect ourselves from common misconfiguration to export
 133 # CDPATH into the environment
 134 unset CDPATH
 135
 136 unset GREP_OPTIONS
 137 unset UNZIP
 138
 139 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 140 1|2|true)
 141         echo "* warning: Some tests will not work if GIT_TRACE" \
 142                 "is set as to trace on STDERR ! *"
 143         echo "* warning: Please set GIT_TRACE to something" \
 144                 "other than 1, 2 or true ! *"
 145         ;;
 146 esac
 147
 148 # Convenience
 149 #
 150 # A regexp to match 5 and 40 hexdigits
 151 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 152 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 153
 154 # Zero SHA-1
 155 _z40=0000000000000000000000000000000000000000
 156
 157 # Line feed
 158 LF='
 159 '
 160
 161 export _x05 _x40 _z40 LF
 162
 163 # Each test should start with something like this, after copyright notices:
 164 #
 165 # test_description='Description of this test...
 166 # This test checks if command xyzzy does the right thing...
 167 # '
 168 # . ./test-lib.sh
 169 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 170                 TERM=$ORIGINAL_TERM &&
 171                 export TERM &&
 172                 [ -t 1 ] &&
 173                 tput bold >/dev/null 2>&1 &&
 174                 tput setaf 1 >/dev/null 2>&1 &&
 175                 tput sgr0 >/dev/null 2>&1
 176         ) &&
 177         color=t
 178
 179 while test "$#" -ne 0
 180 do
 181         case "$1" in
 182         -d|--d|--de|--deb|--debu|--debug)
 183                 debug=t; shift ;;
 184         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 185                 immediate=t; shift ;;
 186         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 187                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 188         -h|--h|--he|--hel|--help)
 189                 help=t; shift ;;
 190         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 191                 verbose=t; shift ;;
 192         --verbose-only=*)
 193                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 194                 shift ;;
 195         -q|--q|--qu|--qui|--quie|--quiet)
 196                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 197                 # passed without the ok/not ok details is always an error.
 198                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 199         --with-dashes)
 200                 with_dashes=t; shift ;;
 201         --no-color)
 202                 color=; shift ;;
 203         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 204                 valgrind=memcheck
 205                 shift ;;
 206         --valgrind=*)
 207                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 208                 shift ;;
 209         --valgrind-only=*)
 210                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 211                 shift ;;
 212         --tee)
 213                 shift ;; # was handled already
 214         --root=*)
 215                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 216                 shift ;;
 217         *)
 218                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 219         esac
 220 done
 221
 222 if test -n "$valgrind_only"
 223 then
 224         test -z "$valgrind" && valgrind=memcheck
 225         test -z "$verbose" && verbose_only="$valgrind_only"
 226 elif test -n "$valgrind"
 227 then
 228         verbose=t
 229 fi
 230
 231 if test -n "$color"
 232 then
 233         say_color () {
 234                 (
 235                 TERM=$ORIGINAL_TERM
 236                 export TERM
 237                 case "$1" in
 238                 error)
 239                         tput bold; tput setaf 1;; # bold red
 240                 skip)
 241                         tput setaf 4;; # blue
 242                 warn)
 243                         tput setaf 3;; # brown/yellow
 244                 pass)
 245                         tput setaf 2;; # green
 246                 info)
 247                         tput setaf 6;; # cyan
 248                 *)
 249                         test -n "$quiet" && return;;
 250                 esac
 251                 shift
 252                 printf "%s" "$*"
 253                 tput sgr0
 254                 echo
 255                 )
 256         }
 257 else
 258         say_color() {
 259                 test -z "$1" && test -n "$quiet" && return
 260                 shift
 261                 printf "%s\n" "$*"
 262         }
 263 fi
 264
 265 error () {
 266         say_color error "error: $*"
 267         GIT_EXIT_OK=t
 268         exit 1
 269 }
 270
 271 say () {
 272         say_color info "$*"
 273 }
 274
 275 test "${test_description}" != "" ||
 276 error "Test script did not set test_description."
 277
 278 if test "$help" = "t"
 279 then
 280         printf '%s\n' "$test_description"
 281         exit 0
 282 fi
 283
 284 exec 5>&1
 285 exec 6<&0
 286 if test "$verbose" = "t"
 287 then
 288         exec 4>&2 3>&1
 289 else
 290         exec 4>/dev/null 3>/dev/null
 291 fi
 292
 293 test_failure=0
 294 test_count=0
 295 test_fixed=0
 296 test_broken=0
 297 test_success=0
 298
 299 test_external_has_tap=0
 300
 301 die () {
 302         code=$?
 303         if test -n "$GIT_EXIT_OK"
 304         then
 305                 exit $code
 306         else
 307                 echo >&5 "FATAL: Unexpected exit with code $code"
 308                 exit 1
 309         fi
 310 }
 311
 312 GIT_EXIT_OK=
 313 trap 'die' EXIT
 314
 315 # The user-facing functions are loaded from a separate file so that
 316 # test_perf subshells can have them too
 317 . "$TEST_DIRECTORY/test-lib-functions.sh"
 318
 319 # You are not expected to call test_ok_ and test_failure_ directly, use
 320 # the test_expect_* functions instead.
 321
 322 test_ok_ () {
 323         test_success=$(($test_success + 1))
 324         say_color "" "ok $test_count - $@"
 325 }
 326
 327 test_failure_ () {
 328         test_failure=$(($test_failure + 1))
 329         say_color error "not ok $test_count - $1"
 330         shift
 331         printf '%s\n' "$*" | sed -e 's/^/#      /'
 332         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 333 }
 334
 335 test_known_broken_ok_ () {
 336         test_fixed=$(($test_fixed+1))
 337         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 338 }
 339
 340 test_known_broken_failure_ () {
 341         test_broken=$(($test_broken+1))
 342         say_color warn "not ok $test_count - $@ # TODO known breakage"
 343 }
 344
 345 test_debug () {
 346         test "$debug" = "" || eval "$1"
 347 }
 348
 349 match_pattern_list () {
 350         arg="$1"
 351         shift
 352         test -z "$*" && return 1
 353         for pattern_
 354         do
 355                 case "$arg" in
 356                 $pattern_)
 357                         return 0
 358                 esac
 359         done
 360         return 1
 361 }
 362
 363 maybe_teardown_verbose () {
 364         test -z "$verbose_only" && return
 365         exec 4>/dev/null 3>/dev/null
 366         verbose=
 367 }
 368
 369 last_verbose=t
 370 maybe_setup_verbose () {
 371         test -z "$verbose_only" && return
 372         if match_pattern_list $test_count $verbose_only
 373         then
 374                 exec 4>&2 3>&1
 375                 # Emit a delimiting blank line when going from
 376                 # non-verbose to verbose.  Within verbose mode the
 377                 # delimiter is printed by test_expect_*.  The choice
 378                 # of the initial $last_verbose is such that before
 379                 # test 1, we do not print it.
 380                 test -z "$last_verbose" && echo >&3 ""
 381                 verbose=t
 382         else
 383                 exec 4>/dev/null 3>/dev/null
 384                 verbose=
 385         fi
 386         last_verbose=$verbose
 387 }
 388
 389 maybe_teardown_valgrind () {
 390         test -z "$GIT_VALGRIND" && return
 391         GIT_VALGRIND_ENABLED=
 392 }
 393
 394 maybe_setup_valgrind () {
 395         test -z "$GIT_VALGRIND" && return
 396         if test -z "$valgrind_only"
 397         then
 398                 GIT_VALGRIND_ENABLED=t
 399                 return
 400         fi
 401         GIT_VALGRIND_ENABLED=
 402         if match_pattern_list $test_count $valgrind_only
 403         then
 404                 GIT_VALGRIND_ENABLED=t
 405         fi
 406 }
 407
 408 test_eval_ () {
 409         # This is a separate function because some tests use
 410         # "return" to end a test_expect_success block early.
 411         eval </dev/null >&3 2>&4 "$*"
 412 }
 413
 414 test_run_ () {
 415         test_cleanup=:
 416         expecting_failure=$2
 417         setup_malloc_check
 418         test_eval_ "$1"
 419         eval_ret=$?
 420         teardown_malloc_check
 421
 422         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 423         then
 424                 setup_malloc_check
 425                 test_eval_ "$test_cleanup"
 426                 teardown_malloc_check
 427         fi
 428         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 429         then
 430                 echo ""
 431         fi
 432         return "$eval_ret"
 433 }
 434
 435 test_start_ () {
 436         test_count=$(($test_count+1))
 437         maybe_setup_verbose
 438         maybe_setup_valgrind
 439 }
 440
 441 test_finish_ () {
 442         echo >&3 ""
 443         maybe_teardown_valgrind
 444         maybe_teardown_verbose
 445 }
 446
 447 test_skip () {
 448         to_skip=
 449         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 450         then
 451                 to_skip=t
 452         fi
 453         if test -z "$to_skip" && test -n "$test_prereq" &&
 454            ! test_have_prereq "$test_prereq"
 455         then
 456                 to_skip=t
 457         fi
 458         case "$to_skip" in
 459         t)
 460                 of_prereq=
 461                 if test "$missing_prereq" != "$test_prereq"
 462                 then
 463                         of_prereq=" of $test_prereq"
 464                 fi
 465
 466                 say_color skip >&3 "skipping test: $@"
 467                 say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 468                 : true
 469                 ;;
 470         *)
 471                 false
 472                 ;;
 473         esac
 474 }
 475
 476 # stub; perf-lib overrides it
 477 test_at_end_hook_ () {
 478         :
 479 }
 480
 481 test_done () {
 482         GIT_EXIT_OK=t
 483
 484         if test -z "$HARNESS_ACTIVE"
 485         then
 486                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 487                 mkdir -p "$test_results_dir"
 488                 base=${0##*/}
 489                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 490
 491                 cat >>"$test_results_path" <<-EOF
 492                 total $test_count
 493                 success $test_success
 494                 fixed $test_fixed
 495                 broken $test_broken
 496                 failed $test_failure
 497
 498                 EOF
 499         fi
 500
 501         if test "$test_fixed" != 0
 502         then
 503                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 504         fi
 505         if test "$test_broken" != 0
 506         then
 507                 say_color warn "# still have $test_broken known breakage(s)"
 508         fi
 509         if test "$test_broken" != 0 || test "$test_fixed" != 0
 510         then
 511                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 512                 msg="remaining $test_remaining test(s)"
 513         else
 514                 test_remaining=$test_count
 515                 msg="$test_count test(s)"
 516         fi
 517         case "$test_failure" in
 518         0)
 519                 # Maybe print SKIP message
 520                 if test -n "$skip_all" && test $test_count -gt 0
 521                 then
 522                         error "Can't use skip_all after running some tests"
 523                 fi
 524                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 525
 526                 if test $test_external_has_tap -eq 0
 527                 then
 528                         if test $test_remaining -gt 0
 529                         then
 530                                 say_color pass "# passed all $msg"
 531                         fi
 532                         say "1..$test_count$skip_all"
 533                 fi
 534
 535                 test -d "$remove_trash" &&
 536                 cd "$(dirname "$remove_trash")" &&
 537                 rm -rf "$(basename "$remove_trash")"
 538
 539                 test_at_end_hook_
 540
 541                 exit 0 ;;
 542
 543         *)
 544                 if test $test_external_has_tap -eq 0
 545                 then
 546                         say_color error "# failed $test_failure among $msg"
 547                         say "1..$test_count"
 548                 fi
 549
 550                 exit 1 ;;
 551
 552         esac
 553 }
 554
 555 if test -n "$valgrind"
 556 then
 557         make_symlink () {
 558                 test -h "$2" &&
 559                 test "$1" = "$(readlink "$2")" || {
 560                         # be super paranoid
 561                         if mkdir "$2".lock
 562                         then
 563                                 rm -f "$2" &&
 564                                 ln -s "$1" "$2" &&
 565                                 rm -r "$2".lock
 566                         else
 567                                 while test -d "$2".lock
 568                                 do
 569                                         say "Waiting for lock on $2."
 570                                         sleep 1
 571                                 done
 572                         fi
 573                 }
 574         }
 575
 576         make_valgrind_symlink () {
 577                 # handle only executables, unless they are shell libraries that
 578                 # need to be in the exec-path.
 579                 test -x "$1" ||
 580                 test "# " = "$(head -c 2 <"$1")" ||
 581                 return;
 582
 583                 base=$(basename "$1")
 584                 symlink_target=$GIT_BUILD_DIR/$base
 585                 # do not override scripts
 586                 if test -x "$symlink_target" &&
 587                     test ! -d "$symlink_target" &&
 588                     test "#!" != "$(head -c 2 < "$symlink_target")"
 589                 then
 590                         symlink_target=../valgrind.sh
 591                 fi
 592                 case "$base" in
 593                 *.sh|*.perl)
 594                         symlink_target=../unprocessed-script
 595                 esac
 596                 # create the link, or replace it if it is out of date
 597                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 598         }
 599
 600         # override all git executables in TEST_DIRECTORY/..
 601         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 602         mkdir -p "$GIT_VALGRIND"/bin
 603         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 604         do
 605                 make_valgrind_symlink $file
 606         done
 607         # special-case the mergetools loadables
 608         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 609         OLDIFS=$IFS
 610         IFS=:
 611         for path in $PATH
 612         do
 613                 ls "$path"/git-* 2> /dev/null |
 614                 while read file
 615                 do
 616                         make_valgrind_symlink "$file"
 617                 done
 618         done
 619         IFS=$OLDIFS
 620         PATH=$GIT_VALGRIND/bin:$PATH
 621         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 622         export GIT_VALGRIND
 623         GIT_VALGRIND_MODE="$valgrind"
 624         export GIT_VALGRIND_MODE
 625         GIT_VALGRIND_ENABLED=t
 626         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 627         export GIT_VALGRIND_ENABLED
 628 elif test -n "$GIT_TEST_INSTALLED"
 629 then
 630         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 631         error "Cannot run git from $GIT_TEST_INSTALLED."
 632         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 633         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 634 else # normal case, use ../bin-wrappers only unless $with_dashes:
 635         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 636         if ! test -x "$git_bin_dir/git"
 637         then
 638                 if test -z "$with_dashes"
 639                 then
 640                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 641                 fi
 642                 with_dashes=t
 643         fi
 644         PATH="$git_bin_dir:$PATH"
 645         GIT_EXEC_PATH=$GIT_BUILD_DIR
 646         if test -n "$with_dashes"
 647         then
 648                 PATH="$GIT_BUILD_DIR:$PATH"
 649         fi
 650 fi
 651 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 652 unset GIT_CONFIG
 653 GIT_CONFIG_NOSYSTEM=1
 654 GIT_ATTR_NOSYSTEM=1
 655 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 656
 657 if test -z "$GIT_TEST_CMP"
 658 then
 659         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 660         then
 661                 GIT_TEST_CMP="$DIFF -c"
 662         else
 663                 GIT_TEST_CMP="$DIFF -u"
 664         fi
 665 fi
 666
 667 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 668 export GITPERLLIB
 669 test -d "$GIT_BUILD_DIR"/templates/blt || {
 670         error "You haven't built things yet, have you?"
 671 }
 672
 673 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 674 then
 675         echo >&2 'You need to build test-chmtime:'
 676         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 677         exit 1
 678 fi
 679
 680 # Test repository
 681 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 682 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 683 case "$TRASH_DIRECTORY" in
 684 /*) ;; # absolute path is good
 685  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 686 esac
 687 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 688 rm -fr "$TRASH_DIRECTORY" || {
 689         GIT_EXIT_OK=t
 690         echo >&5 "FATAL: Cannot prepare test area"
 691         exit 1
 692 }
 693
 694 HOME="$TRASH_DIRECTORY"
 695 export HOME
 696
 697 if test -z "$TEST_NO_CREATE_REPO"
 698 then
 699         test_create_repo "$TRASH_DIRECTORY"
 700 else
 701         mkdir -p "$TRASH_DIRECTORY"
 702 fi
 703 # Use -P to resolve symlinks in our working directory so that the cwd
 704 # in subprocesses like git equals our $PWD (for pathname comparisons).
 705 cd -P "$TRASH_DIRECTORY" || exit 1
 706
 707 this_test=${0##*/}
 708 this_test=${this_test%%-*}
 709 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 710 then
 711         say_color info >&3 "skipping test $this_test altogether"
 712         skip_all="skip all tests in $this_test"
 713         test_done
 714 fi
 715
 716 # Provide an implementation of the 'yes' utility
 717 yes () {
 718         if test $# = 0
 719         then
 720                 y=y
 721         else
 722                 y="$*"
 723         fi
 724
 725         while echo "$y"
 726         do
 727                 :
 728         done
 729 }
 730
 731 # Fix some commands on Windows
 732 case $(uname -s) in
 733 *MINGW*)
 734         # Windows has its own (incompatible) sort and find
 735         sort () {
 736                 /usr/bin/sort "$@"
 737         }
 738         find () {
 739                 /usr/bin/find "$@"
 740         }
 741         sum () {
 742                 md5sum "$@"
 743         }
 744         # git sees Windows-style pwd
 745         pwd () {
 746                 builtin pwd -W
 747         }
 748         # no POSIX permissions
 749         # backslashes in pathspec are converted to '/'
 750         # exec does not inherit the PID
 751         test_set_prereq MINGW
 752         test_set_prereq NOT_CYGWIN
 753         test_set_prereq SED_STRIPS_CR
 754         test_set_prereq GREP_STRIPS_CR
 755         GIT_TEST_CMP=mingw_test_cmp
 756         ;;
 757 *CYGWIN*)
 758         test_set_prereq POSIXPERM
 759         test_set_prereq EXECKEEPSPID
 760         test_set_prereq NOT_MINGW
 761         test_set_prereq CYGWIN
 762         test_set_prereq SED_STRIPS_CR
 763         test_set_prereq GREP_STRIPS_CR
 764         ;;
 765 *)
 766         test_set_prereq POSIXPERM
 767         test_set_prereq BSLASHPSPEC
 768         test_set_prereq EXECKEEPSPID
 769         test_set_prereq NOT_MINGW
 770         test_set_prereq NOT_CYGWIN
 771         ;;
 772 esac
 773
 774 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 775 test -z "$NO_PERL" && test_set_prereq PERL
 776 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 777 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 778 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 779
 780 # Can we rely on git's output in the C locale?
 781 if test -n "$GETTEXT_POISON"
 782 then
 783         GIT_GETTEXT_POISON=YesPlease
 784         export GIT_GETTEXT_POISON
 785         test_set_prereq GETTEXT_POISON
 786 else
 787         test_set_prereq C_LOCALE_OUTPUT
 788 fi
 789
 790 # Use this instead of test_cmp to compare files that contain expected and
 791 # actual output from git commands that can be translated.  When running
 792 # under GETTEXT_POISON this pretends that the command produced expected
 793 # results.
 794 test_i18ncmp () {
 795         test -n "$GETTEXT_POISON" || test_cmp "$@"
 796 }
 797
 798 # Use this instead of "grep expected-string actual" to see if the
 799 # output from a git command that can be translated either contains an
 800 # expected string, or does not contain an unwanted one.  When running
 801 # under GETTEXT_POISON this pretends that the command produced expected
 802 # results.
 803 test_i18ngrep () {
 804         if test -n "$GETTEXT_POISON"
 805         then
 806             : # pretend success
 807         elif test "x!" = "x$1"
 808         then
 809                 shift
 810                 ! grep "$@"
 811         else
 812                 grep "$@"
 813         fi
 814 }
 815
 816 test_lazy_prereq PIPE '
 817         # test whether the filesystem supports FIFOs
 818         case $(uname -s) in
 819         CYGWIN*)
 820                 false
 821                 ;;
 822         *)
 823                 rm -f testfifo && mkfifo testfifo
 824                 ;;
 825         esac
 826 '
 827
 828 test_lazy_prereq SYMLINKS '
 829         # test whether the filesystem supports symbolic links
 830         ln -s x y && test -h y
 831 '
 832
 833 test_lazy_prereq FILEMODE '
 834         test "$(git config --bool core.filemode)" = true
 835 '
 836
 837 test_lazy_prereq CASE_INSENSITIVE_FS '
 838         echo good >CamelCase &&
 839         echo bad >camelcase &&
 840         test "$(cat CamelCase)" != good
 841 '
 842
 843 test_lazy_prereq UTF8_NFD_TO_NFC '
 844         # check whether FS converts nfd unicode to nfc
 845         auml=$(printf "\303\244")
 846         aumlcdiar=$(printf "\141\314\210")
 847         >"$auml" &&
 848         case "$(echo *)" in
 849         "$aumlcdiar")
 850                 true ;;
 851         *)
 852                 false ;;
 853         esac
 854 '
 855
 856 test_lazy_prereq AUTOIDENT '
 857         sane_unset GIT_AUTHOR_NAME &&
 858         sane_unset GIT_AUTHOR_EMAIL &&
 859         git var GIT_AUTHOR_IDENT
 860 '
 861
 862 # When the tests are run as root, permission tests will report that
 863 # things are writable when they shouldn't be.
 864 test -w / || test_set_prereq SANITY
 865
 866 GIT_UNZIP=${GIT_UNZIP:-unzip}
 867 test_lazy_prereq UNZIP '
 868         "$GIT_UNZIP" -v
 869         test $? -ne 127
 870 '