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 # 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=$(pwd)
  29 fi
  30 if test -z "$TEST_OUTPUT_DIRECTORY"
  31 then
  32         # Similarly, override this to store the test-results subdir
  33         # elsewhere
  34         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  35 fi
  36 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
  37
  38 ################################################################
  39 # It appears that people try to run tests without building...
  40 "$GIT_BUILD_DIR/git" >/dev/null
  41 if test $? != 1
  42 then
  43         echo >&2 'error: you do not seem to have built git yet.'
  44         exit 1
  45 fi
  46
  47 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  48 export PERL_PATH SHELL_PATH
  49
  50 # if --tee was passed, write the output not only to the terminal, but
  51 # additionally to the file test-results/$BASENAME.out, too.
  52 case "$GIT_TEST_TEE_STARTED, $* " in
  53 done,*)
  54         # do not redirect again
  55         ;;
  56 *' --tee '*|*' --va'*)
  57         mkdir -p test-results
  58         BASE=test-results/$(basename "$0" .sh)
  59         (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
  60          echo $? > $BASE.exit) | tee $BASE.out
  61         test "$(cat $BASE.exit)" = 0
  62         exit
  63         ;;
  64 esac
  65
  66 # For repeatability, reset the environment to known value.
  67 LANG=C
  68 LC_ALL=C
  69 PAGER=cat
  70 TZ=UTC
  71 TERM=dumb
  72 export LANG LC_ALL PAGER TERM TZ
  73 EDITOR=:
  74 # A call to "unset" with no arguments causes at least Solaris 10
  75 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
  76 # deriving from the command substitution clustered with the other
  77 # ones.
  78 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
  79         my @env = keys %ENV;
  80         my $ok = join("|", qw(
  81                 TRACE
  82                 DEBUG
  83                 USE_LOOKUP
  84                 TEST
  85                 .*_TEST
  86                 PROVE
  87                 VALGRIND
  88                 UNZIP
  89                 PERF_
  90         ));
  91         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
  92         print join("\n", @vars);
  93 ')
  94 unset XDG_CONFIG_HOME
  95 GIT_AUTHOR_EMAIL=author@example.com
  96 GIT_AUTHOR_NAME='A U Thor'
  97 GIT_COMMITTER_EMAIL=committer@example.com
  98 GIT_COMMITTER_NAME='C O Mitter'
  99 GIT_MERGE_VERBOSITY=5
 100 GIT_MERGE_AUTOEDIT=no
 101 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 102 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 103 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 104 export EDITOR
 105
 106 # Add libc MALLOC and MALLOC_PERTURB test
 107 # only if we are not executing the test with valgrind
 108 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 109    test -n "$TEST_NO_MALLOC_CHECK"
 110 then
 111         setup_malloc_check () {
 112                 : nothing
 113         }
 114         teardown_malloc_check () {
 115                 : nothing
 116         }
 117 else
 118         setup_malloc_check () {
 119                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 120                 export MALLOC_CHECK_ MALLOC_PERTURB_
 121         }
 122         teardown_malloc_check () {
 123                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 124         }
 125 fi
 126
 127 # Protect ourselves from common misconfiguration to export
 128 # CDPATH into the environment
 129 unset CDPATH
 130
 131 unset GREP_OPTIONS
 132 unset UNZIP
 133
 134 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 135 1|2|true)
 136         echo "* warning: Some tests will not work if GIT_TRACE" \
 137                 "is set as to trace on STDERR ! *"
 138         echo "* warning: Please set GIT_TRACE to something" \
 139                 "other than 1, 2 or true ! *"
 140         ;;
 141 esac
 142
 143 # Convenience
 144 #
 145 # A regexp to match 5 and 40 hexdigits
 146 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 147 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 148
 149 # Zero SHA-1
 150 _z40=0000000000000000000000000000000000000000
 151
 152 # Line feed
 153 LF='
 154 '
 155
 156 export _x05 _x40 _z40 LF
 157
 158 # Each test should start with something like this, after copyright notices:
 159 #
 160 # test_description='Description of this test...
 161 # This test checks if command xyzzy does the right thing...
 162 # '
 163 # . ./test-lib.sh
 164 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 165                 TERM=$ORIGINAL_TERM &&
 166                 export TERM &&
 167                 [ -t 1 ] &&
 168                 tput bold >/dev/null 2>&1 &&
 169                 tput setaf 1 >/dev/null 2>&1 &&
 170                 tput sgr0 >/dev/null 2>&1
 171         ) &&
 172         color=t
 173
 174 while test "$#" -ne 0
 175 do
 176         case "$1" in
 177         -d|--d|--de|--deb|--debu|--debug)
 178                 debug=t; shift ;;
 179         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 180                 immediate=t; shift ;;
 181         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 182                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 183         -h|--h|--he|--hel|--help)
 184                 help=t; shift ;;
 185         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 186                 verbose=t; shift ;;
 187         --verbose-only=*)
 188                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 189                 shift ;;
 190         -q|--q|--qu|--qui|--quie|--quiet)
 191                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 192                 # passed without the ok/not ok details is always an error.
 193                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 194         --with-dashes)
 195                 with_dashes=t; shift ;;
 196         --no-color)
 197                 color=; shift ;;
 198         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 199                 valgrind=memcheck
 200                 shift ;;
 201         --valgrind=*)
 202                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 203                 shift ;;
 204         --valgrind-only=*)
 205                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 206                 shift ;;
 207         --tee)
 208                 shift ;; # was handled already
 209         --root=*)
 210                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 211                 shift ;;
 212         *)
 213                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 214         esac
 215 done
 216
 217 if test -n "$valgrind_only"
 218 then
 219         test -z "$valgrind" && valgrind=memcheck
 220         test -z "$verbose" && verbose_only="$valgrind_only"
 221 elif test -n "$valgrind"
 222 then
 223         verbose=t
 224 fi
 225
 226 if test -n "$color"
 227 then
 228         say_color () {
 229                 (
 230                 TERM=$ORIGINAL_TERM
 231                 export TERM
 232                 case "$1" in
 233                 error)
 234                         tput bold; tput setaf 1;; # bold red
 235                 skip)
 236                         tput setaf 4;; # blue
 237                 warn)
 238                         tput setaf 3;; # brown/yellow
 239                 pass)
 240                         tput setaf 2;; # green
 241                 info)
 242                         tput setaf 6;; # cyan
 243                 *)
 244                         test -n "$quiet" && return;;
 245                 esac
 246                 shift
 247                 printf "%s" "$*"
 248                 tput sgr0
 249                 echo
 250                 )
 251         }
 252 else
 253         say_color() {
 254                 test -z "$1" && test -n "$quiet" && return
 255                 shift
 256                 printf "%s\n" "$*"
 257         }
 258 fi
 259
 260 error () {
 261         say_color error "error: $*"
 262         GIT_EXIT_OK=t
 263         exit 1
 264 }
 265
 266 say () {
 267         say_color info "$*"
 268 }
 269
 270 test "${test_description}" != "" ||
 271 error "Test script did not set test_description."
 272
 273 if test "$help" = "t"
 274 then
 275         echo "$test_description"
 276         exit 0
 277 fi
 278
 279 exec 5>&1
 280 exec 6<&0
 281 if test "$verbose" = "t"
 282 then
 283         exec 4>&2 3>&1
 284 else
 285         exec 4>/dev/null 3>/dev/null
 286 fi
 287
 288 test_failure=0
 289 test_count=0
 290 test_fixed=0
 291 test_broken=0
 292 test_success=0
 293
 294 test_external_has_tap=0
 295
 296 die () {
 297         code=$?
 298         if test -n "$GIT_EXIT_OK"
 299         then
 300                 exit $code
 301         else
 302                 echo >&5 "FATAL: Unexpected exit with code $code"
 303                 exit 1
 304         fi
 305 }
 306
 307 GIT_EXIT_OK=
 308 trap 'die' EXIT
 309
 310 # The user-facing functions are loaded from a separate file so that
 311 # test_perf subshells can have them too
 312 . "$TEST_DIRECTORY/test-lib-functions.sh"
 313
 314 # You are not expected to call test_ok_ and test_failure_ directly, use
 315 # the text_expect_* functions instead.
 316
 317 test_ok_ () {
 318         test_success=$(($test_success + 1))
 319         say_color "" "ok $test_count - $@"
 320 }
 321
 322 test_failure_ () {
 323         test_failure=$(($test_failure + 1))
 324         say_color error "not ok $test_count - $1"
 325         shift
 326         echo "$@" | sed -e 's/^/#       /'
 327         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 328 }
 329
 330 test_known_broken_ok_ () {
 331         test_fixed=$(($test_fixed+1))
 332         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 333 }
 334
 335 test_known_broken_failure_ () {
 336         test_broken=$(($test_broken+1))
 337         say_color warn "not ok $test_count - $@ # TODO known breakage"
 338 }
 339
 340 test_debug () {
 341         test "$debug" = "" || eval "$1"
 342 }
 343
 344 match_pattern_list () {
 345         arg="$1"
 346         shift
 347         test -z "$*" && return 1
 348         for pattern_
 349         do
 350                 case "$arg" in
 351                 $pattern_)
 352                         return 0
 353                 esac
 354         done
 355         return 1
 356 }
 357
 358 maybe_teardown_verbose () {
 359         test -z "$verbose_only" && return
 360         exec 4>/dev/null 3>/dev/null
 361         verbose=
 362 }
 363
 364 last_verbose=t
 365 maybe_setup_verbose () {
 366         test -z "$verbose_only" && return
 367         if match_pattern_list $test_count $verbose_only
 368         then
 369                 exec 4>&2 3>&1
 370                 # Emit a delimiting blank line when going from
 371                 # non-verbose to verbose.  Within verbose mode the
 372                 # delimiter is printed by test_expect_*.  The choice
 373                 # of the initial $last_verbose is such that before
 374                 # test 1, we do not print it.
 375                 test -z "$last_verbose" && echo >&3 ""
 376                 verbose=t
 377         else
 378                 exec 4>/dev/null 3>/dev/null
 379                 verbose=
 380         fi
 381         last_verbose=$verbose
 382 }
 383
 384 maybe_teardown_valgrind () {
 385         test -z "$GIT_VALGRIND" && return
 386         GIT_VALGRIND_ENABLED=
 387 }
 388
 389 maybe_setup_valgrind () {
 390         test -z "$GIT_VALGRIND" && return
 391         if test -z "$valgrind_only"
 392         then
 393                 GIT_VALGRIND_ENABLED=t
 394                 return
 395         fi
 396         GIT_VALGRIND_ENABLED=
 397         if match_pattern_list $test_count $valgrind_only
 398         then
 399                 GIT_VALGRIND_ENABLED=t
 400         fi
 401 }
 402
 403 test_eval_ () {
 404         # This is a separate function because some tests use
 405         # "return" to end a test_expect_success block early.
 406         eval </dev/null >&3 2>&4 "$*"
 407 }
 408
 409 test_run_ () {
 410         test_cleanup=:
 411         expecting_failure=$2
 412         setup_malloc_check
 413         test_eval_ "$1"
 414         eval_ret=$?
 415         teardown_malloc_check
 416
 417         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 418         then
 419                 setup_malloc_check
 420                 test_eval_ "$test_cleanup"
 421                 teardown_malloc_check
 422         fi
 423         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 424         then
 425                 echo ""
 426         fi
 427         return "$eval_ret"
 428 }
 429
 430 test_start_ () {
 431         test_count=$(($test_count+1))
 432         maybe_setup_verbose
 433         maybe_setup_valgrind
 434 }
 435
 436 test_finish_ () {
 437         echo >&3 ""
 438         maybe_teardown_valgrind
 439         maybe_teardown_verbose
 440 }
 441
 442 test_skip () {
 443         to_skip=
 444         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 445         then
 446                 to_skip=t
 447         fi
 448         if test -z "$to_skip" && test -n "$test_prereq" &&
 449            ! test_have_prereq "$test_prereq"
 450         then
 451                 to_skip=t
 452         fi
 453         case "$to_skip" in
 454         t)
 455                 of_prereq=
 456                 if test "$missing_prereq" != "$test_prereq"
 457                 then
 458                         of_prereq=" of $test_prereq"
 459                 fi
 460
 461                 say_color skip >&3 "skipping test: $@"
 462                 say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 463                 : true
 464                 ;;
 465         *)
 466                 false
 467                 ;;
 468         esac
 469 }
 470
 471 # stub; perf-lib overrides it
 472 test_at_end_hook_ () {
 473         :
 474 }
 475
 476 test_done () {
 477         GIT_EXIT_OK=t
 478
 479         # Note: t0000 relies on $HARNESS_ACTIVE disabling the .counts
 480         # output file
 481         if test -z "$HARNESS_ACTIVE"
 482         then
 483                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 484                 mkdir -p "$test_results_dir"
 485                 base=${0##*/}
 486                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 487
 488                 cat >>"$test_results_path" <<-EOF
 489                 total $test_count
 490                 success $test_success
 491                 fixed $test_fixed
 492                 broken $test_broken
 493                 failed $test_failure
 494
 495                 EOF
 496         fi
 497
 498         if test "$test_fixed" != 0
 499         then
 500                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 501         fi
 502         if test "$test_broken" != 0
 503         then
 504                 say_color warn "# still have $test_broken known breakage(s)"
 505         fi
 506         if test "$test_broken" != 0 || test "$test_fixed" != 0
 507         then
 508                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 509                 msg="remaining $test_remaining test(s)"
 510         else
 511                 test_remaining=$test_count
 512                 msg="$test_count test(s)"
 513         fi
 514         case "$test_failure" in
 515         0)
 516                 # Maybe print SKIP message
 517                 if test -n "$skip_all" && test $test_count -gt 0
 518                 then
 519                         error "Can't use skip_all after running some tests"
 520                 fi
 521                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 522
 523                 if test $test_external_has_tap -eq 0
 524                 then
 525                         if test $test_remaining -gt 0
 526                         then
 527                                 say_color pass "# passed all $msg"
 528                         fi
 529                         say "1..$test_count$skip_all"
 530                 fi
 531
 532                 test -d "$remove_trash" &&
 533                 cd "$(dirname "$remove_trash")" &&
 534                 rm -rf "$(basename "$remove_trash")"
 535
 536                 test_at_end_hook_
 537
 538                 exit 0 ;;
 539
 540         *)
 541                 if test $test_external_has_tap -eq 0
 542                 then
 543                         say_color error "# failed $test_failure among $msg"
 544                         say "1..$test_count"
 545                 fi
 546
 547                 exit 1 ;;
 548
 549         esac
 550 }
 551
 552 if test -n "$valgrind"
 553 then
 554         make_symlink () {
 555                 test -h "$2" &&
 556                 test "$1" = "$(readlink "$2")" || {
 557                         # be super paranoid
 558                         if mkdir "$2".lock
 559                         then
 560                                 rm -f "$2" &&
 561                                 ln -s "$1" "$2" &&
 562                                 rm -r "$2".lock
 563                         else
 564                                 while test -d "$2".lock
 565                                 do
 566                                         say "Waiting for lock on $2."
 567                                         sleep 1
 568                                 done
 569                         fi
 570                 }
 571         }
 572
 573         make_valgrind_symlink () {
 574                 # handle only executables, unless they are shell libraries that
 575                 # need to be in the exec-path.  We will just use "#!" as a
 576                 # guess for a shell-script, since we have no idea what the user
 577                 # may have configured as the shell path.
 578                 test -x "$1" ||
 579                 test "#!" = "$(head -c 2 <"$1")" ||
 580                 return;
 581
 582                 base=$(basename "$1")
 583                 symlink_target=$GIT_BUILD_DIR/$base
 584                 # do not override scripts
 585                 if test -x "$symlink_target" &&
 586                     test ! -d "$symlink_target" &&
 587                     test "#!" != "$(head -c 2 < "$symlink_target")"
 588                 then
 589                         symlink_target=../valgrind.sh
 590                 fi
 591                 case "$base" in
 592                 *.sh|*.perl)
 593                         symlink_target=../unprocessed-script
 594                 esac
 595                 # create the link, or replace it if it is out of date
 596                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 597         }
 598
 599         # override all git executables in TEST_DIRECTORY/..
 600         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 601         mkdir -p "$GIT_VALGRIND"/bin
 602         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 603         do
 604                 make_valgrind_symlink $file
 605         done
 606         # special-case the mergetools loadables
 607         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 608         OLDIFS=$IFS
 609         IFS=:
 610         for path in $PATH
 611         do
 612                 ls "$path"/git-* 2> /dev/null |
 613                 while read file
 614                 do
 615                         make_valgrind_symlink "$file"
 616                 done
 617         done
 618         IFS=$OLDIFS
 619         PATH=$GIT_VALGRIND/bin:$PATH
 620         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 621         export GIT_VALGRIND
 622         GIT_VALGRIND_MODE="$valgrind"
 623         export GIT_VALGRIND_MODE
 624         GIT_VALGRIND_ENABLED=t
 625         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 626         export GIT_VALGRIND_ENABLED
 627 elif test -n "$GIT_TEST_INSTALLED"
 628 then
 629         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 630         error "Cannot run git from $GIT_TEST_INSTALLED."
 631         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 632         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 633 else # normal case, use ../bin-wrappers only unless $with_dashes:
 634         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 635         if ! test -x "$git_bin_dir/git"
 636         then
 637                 if test -z "$with_dashes"
 638                 then
 639                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 640                 fi
 641                 with_dashes=t
 642         fi
 643         PATH="$git_bin_dir:$PATH"
 644         GIT_EXEC_PATH=$GIT_BUILD_DIR
 645         if test -n "$with_dashes"
 646         then
 647                 PATH="$GIT_BUILD_DIR:$PATH"
 648         fi
 649 fi
 650 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 651 unset GIT_CONFIG
 652 GIT_CONFIG_NOSYSTEM=1
 653 GIT_ATTR_NOSYSTEM=1
 654 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 655
 656 if test -z "$GIT_TEST_CMP"
 657 then
 658         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 659         then
 660                 GIT_TEST_CMP="$DIFF -c"
 661         else
 662                 GIT_TEST_CMP="$DIFF -u"
 663         fi
 664 fi
 665
 666 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 667 export GITPERLLIB
 668 test -d "$GIT_BUILD_DIR"/templates/blt || {
 669         error "You haven't built things yet, have you?"
 670 }
 671
 672 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 673 then
 674         GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
 675         export GITPYTHONLIB
 676         test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
 677                 error "You haven't built git_remote_helpers yet, have you?"
 678         }
 679 fi
 680
 681 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 682 then
 683         echo >&2 'You need to build test-chmtime:'
 684         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 685         exit 1
 686 fi
 687
 688 # Test repository
 689 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 690 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 691 case "$TRASH_DIRECTORY" in
 692 /*) ;; # absolute path is good
 693  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 694 esac
 695 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 696 rm -fr "$TRASH_DIRECTORY" || {
 697         GIT_EXIT_OK=t
 698         echo >&5 "FATAL: Cannot prepare test area"
 699         exit 1
 700 }
 701
 702 HOME="$TRASH_DIRECTORY"
 703 export HOME
 704
 705 if test -z "$TEST_NO_CREATE_REPO"
 706 then
 707         test_create_repo "$TRASH_DIRECTORY"
 708 else
 709         mkdir -p "$TRASH_DIRECTORY"
 710 fi
 711 # Use -P to resolve symlinks in our working directory so that the cwd
 712 # in subprocesses like git equals our $PWD (for pathname comparisons).
 713 cd -P "$TRASH_DIRECTORY" || exit 1
 714
 715 this_test=${0##*/}
 716 this_test=${this_test%%-*}
 717 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 718 then
 719         say_color info >&3 "skipping test $this_test altogether"
 720         skip_all="skip all tests in $this_test"
 721         test_done
 722 fi
 723
 724 # Provide an implementation of the 'yes' utility
 725 yes () {
 726         if test $# = 0
 727         then
 728                 y=y
 729         else
 730                 y="$*"
 731         fi
 732
 733         while echo "$y"
 734         do
 735                 :
 736         done
 737 }
 738
 739 # Fix some commands on Windows
 740 case $(uname -s) in
 741 *MINGW*)
 742         # Windows has its own (incompatible) sort and find
 743         sort () {
 744                 /usr/bin/sort "$@"
 745         }
 746         find () {
 747                 /usr/bin/find "$@"
 748         }
 749         sum () {
 750                 md5sum "$@"
 751         }
 752         # git sees Windows-style pwd
 753         pwd () {
 754                 builtin pwd -W
 755         }
 756         # no POSIX permissions
 757         # backslashes in pathspec are converted to '/'
 758         # exec does not inherit the PID
 759         test_set_prereq MINGW
 760         test_set_prereq NOT_CYGWIN
 761         test_set_prereq SED_STRIPS_CR
 762         ;;
 763 *CYGWIN*)
 764         test_set_prereq POSIXPERM
 765         test_set_prereq EXECKEEPSPID
 766         test_set_prereq NOT_MINGW
 767         test_set_prereq CYGWIN
 768         test_set_prereq SED_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 "$@"
 818         fi
 819 }
 820
 821 test_lazy_prereq PIPE '
 822         # test whether the filesystem supports FIFOs
 823         rm -f testfifo && mkfifo testfifo
 824 '
 825
 826 test_lazy_prereq SYMLINKS '
 827         # test whether the filesystem supports symbolic links
 828         ln -s x y && test -h y
 829 '
 830
 831 test_lazy_prereq CASE_INSENSITIVE_FS '
 832         echo good >CamelCase &&
 833         echo bad >camelcase &&
 834         test "$(cat CamelCase)" != good
 835 '
 836
 837 test_lazy_prereq UTF8_NFD_TO_NFC '
 838         # check whether FS converts nfd unicode to nfc
 839         auml=$(printf "\303\244")
 840         aumlcdiar=$(printf "\141\314\210")
 841         >"$auml" &&
 842         case "$(echo *)" in
 843         "$aumlcdiar")
 844                 true ;;
 845         *)
 846                 false ;;
 847         esac
 848 '
 849
 850 test_lazy_prereq AUTOIDENT '
 851         sane_unset GIT_AUTHOR_NAME &&
 852         sane_unset GIT_AUTHOR_EMAIL &&
 853         git var GIT_AUTHOR_IDENT
 854 '
 855
 856 # When the tests are run as root, permission tests will report that
 857 # things are writable when they shouldn't be.
 858 test -w / || test_set_prereq SANITY
 859
 860 GIT_UNZIP=${GIT_UNZIP:-unzip}
 861 test_lazy_prereq UNZIP '
 862         "$GIT_UNZIP" -v
 863         test $? -ne 127
 864 '