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 $ok = join("|", qw(
  85                 TRACE
  86                 DEBUG
  87                 USE_LOOKUP
  88                 TEST
  89                 .*_TEST
  90                 PROVE
  91                 VALGRIND
  92                 UNZIP
  93                 PERF_
  94                 CURL_VERBOSE
  95         ));
  96         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
  97         print join("\n", @vars);
  98 ')
  99 unset XDG_CONFIG_HOME
 100 unset GITPERLLIB
 101 GIT_AUTHOR_EMAIL=author@example.com
 102 GIT_AUTHOR_NAME='A U Thor'
 103 GIT_COMMITTER_EMAIL=committer@example.com
 104 GIT_COMMITTER_NAME='C O Mitter'
 105 GIT_MERGE_VERBOSITY=5
 106 GIT_MERGE_AUTOEDIT=no
 107 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 108 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 109 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 110 export EDITOR
 111
 112 if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
 113 then
 114         GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
 115         export GIT_INDEX_VERSION
 116 fi
 117
 118 # Add libc MALLOC and MALLOC_PERTURB test
 119 # only if we are not executing the test with valgrind
 120 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 121    test -n "$TEST_NO_MALLOC_CHECK"
 122 then
 123         setup_malloc_check () {
 124                 : nothing
 125         }
 126         teardown_malloc_check () {
 127                 : nothing
 128         }
 129 else
 130         setup_malloc_check () {
 131                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 132                 export MALLOC_CHECK_ MALLOC_PERTURB_
 133         }
 134         teardown_malloc_check () {
 135                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 136         }
 137 fi
 138
 139 # Protect ourselves from common misconfiguration to export
 140 # CDPATH into the environment
 141 unset CDPATH
 142
 143 unset GREP_OPTIONS
 144 unset UNZIP
 145
 146 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 147 1|2|true)
 148         echo "* warning: Some tests will not work if GIT_TRACE" \
 149                 "is set as to trace on STDERR ! *"
 150         echo "* warning: Please set GIT_TRACE to something" \
 151                 "other than 1, 2 or true ! *"
 152         ;;
 153 esac
 154
 155 # Convenience
 156 #
 157 # A regexp to match 5 and 40 hexdigits
 158 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 159 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 160
 161 # Zero SHA-1
 162 _z40=0000000000000000000000000000000000000000
 163
 164 # Line feed
 165 LF='
 166 '
 167
 168 export _x05 _x40 _z40 LF
 169
 170 # Each test should start with something like this, after copyright notices:
 171 #
 172 # test_description='Description of this test...
 173 # This test checks if command xyzzy does the right thing...
 174 # '
 175 # . ./test-lib.sh
 176 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 177                 TERM=$ORIGINAL_TERM &&
 178                 export TERM &&
 179                 [ -t 1 ] &&
 180                 tput bold >/dev/null 2>&1 &&
 181                 tput setaf 1 >/dev/null 2>&1 &&
 182                 tput sgr0 >/dev/null 2>&1
 183         ) &&
 184         color=t
 185
 186 while test "$#" -ne 0
 187 do
 188         case "$1" in
 189         -d|--d|--de|--deb|--debu|--debug)
 190                 debug=t; shift ;;
 191         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 192                 immediate=t; shift ;;
 193         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 194                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 195         -r)
 196                 shift; test "$#" -ne 0 || {
 197                         echo 'error: -r requires an argument' >&2;
 198                         exit 1;
 199                 }
 200                 run_list=$1; shift ;;
 201         --run=*)
 202                 run_list=$(expr "z$1" : 'z[^=]*=\(.*\)'); shift ;;
 203         -h|--h|--he|--hel|--help)
 204                 help=t; shift ;;
 205         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 206                 verbose=t; shift ;;
 207         --verbose-only=*)
 208                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 209                 shift ;;
 210         -q|--q|--qu|--qui|--quie|--quiet)
 211                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 212                 # passed without the ok/not ok details is always an error.
 213                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 214         --with-dashes)
 215                 with_dashes=t; shift ;;
 216         --no-color)
 217                 color=; shift ;;
 218         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 219                 valgrind=memcheck
 220                 shift ;;
 221         --valgrind=*)
 222                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 223                 shift ;;
 224         --valgrind-only=*)
 225                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 226                 shift ;;
 227         --tee)
 228                 shift ;; # was handled already
 229         --root=*)
 230                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 231                 shift ;;
 232         *)
 233                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 234         esac
 235 done
 236
 237 if test -n "$valgrind_only"
 238 then
 239         test -z "$valgrind" && valgrind=memcheck
 240         test -z "$verbose" && verbose_only="$valgrind_only"
 241 elif test -n "$valgrind"
 242 then
 243         verbose=t
 244 fi
 245
 246 if test -n "$color"
 247 then
 248         say_color () {
 249                 (
 250                 TERM=$ORIGINAL_TERM
 251                 export TERM
 252                 case "$1" in
 253                 error)
 254                         tput bold; tput setaf 1;; # bold red
 255                 skip)
 256                         tput setaf 4;; # blue
 257                 warn)
 258                         tput setaf 3;; # brown/yellow
 259                 pass)
 260                         tput setaf 2;; # green
 261                 info)
 262                         tput setaf 6;; # cyan
 263                 *)
 264                         test -n "$quiet" && return;;
 265                 esac
 266                 shift
 267                 printf "%s" "$*"
 268                 tput sgr0
 269                 echo
 270                 )
 271         }
 272 else
 273         say_color() {
 274                 test -z "$1" && test -n "$quiet" && return
 275                 shift
 276                 printf "%s\n" "$*"
 277         }
 278 fi
 279
 280 error () {
 281         say_color error "error: $*"
 282         GIT_EXIT_OK=t
 283         exit 1
 284 }
 285
 286 say () {
 287         say_color info "$*"
 288 }
 289
 290 test "${test_description}" != "" ||
 291 error "Test script did not set test_description."
 292
 293 if test "$help" = "t"
 294 then
 295         printf '%s\n' "$test_description"
 296         exit 0
 297 fi
 298
 299 exec 5>&1
 300 exec 6<&0
 301 if test "$verbose" = "t"
 302 then
 303         exec 4>&2 3>&1
 304 else
 305         exec 4>/dev/null 3>/dev/null
 306 fi
 307
 308 test_failure=0
 309 test_count=0
 310 test_fixed=0
 311 test_broken=0
 312 test_success=0
 313
 314 test_external_has_tap=0
 315
 316 die () {
 317         code=$?
 318         if test -n "$GIT_EXIT_OK"
 319         then
 320                 exit $code
 321         else
 322                 echo >&5 "FATAL: Unexpected exit with code $code"
 323                 exit 1
 324         fi
 325 }
 326
 327 GIT_EXIT_OK=
 328 trap 'die' EXIT
 329
 330 # The user-facing functions are loaded from a separate file so that
 331 # test_perf subshells can have them too
 332 . "$TEST_DIRECTORY/test-lib-functions.sh"
 333
 334 # You are not expected to call test_ok_ and test_failure_ directly, use
 335 # the test_expect_* functions instead.
 336
 337 test_ok_ () {
 338         test_success=$(($test_success + 1))
 339         say_color "" "ok $test_count - $@"
 340 }
 341
 342 test_failure_ () {
 343         test_failure=$(($test_failure + 1))
 344         say_color error "not ok $test_count - $1"
 345         shift
 346         printf '%s\n' "$*" | sed -e 's/^/#      /'
 347         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 348 }
 349
 350 test_known_broken_ok_ () {
 351         test_fixed=$(($test_fixed+1))
 352         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 353 }
 354
 355 test_known_broken_failure_ () {
 356         test_broken=$(($test_broken+1))
 357         say_color warn "not ok $test_count - $@ # TODO known breakage"
 358 }
 359
 360 test_debug () {
 361         test "$debug" = "" || eval "$1"
 362 }
 363
 364 match_pattern_list () {
 365         arg="$1"
 366         shift
 367         test -z "$*" && return 1
 368         for pattern_
 369         do
 370                 case "$arg" in
 371                 $pattern_)
 372                         return 0
 373                 esac
 374         done
 375         return 1
 376 }
 377
 378 match_test_selector_list () {
 379         title="$1"
 380         shift
 381         arg="$1"
 382         shift
 383         test -z "$1" && return 0
 384
 385         # Both commas and whitespace are accepted as separators.
 386         OLDIFS=$IFS
 387         IFS='   ,'
 388         set -- $1
 389         IFS=$OLDIFS
 390
 391         # If the first selector is negative we include by default.
 392         include=
 393         case "$1" in
 394                 !*) include=t ;;
 395         esac
 396
 397         for selector
 398         do
 399                 orig_selector=$selector
 400
 401                 positive=t
 402                 case "$selector" in
 403                         !*)
 404                                 positive=
 405                                 selector=${selector##?}
 406                                 ;;
 407                 esac
 408
 409                 test -z "$selector" && continue
 410
 411                 case "$selector" in
 412                         *-*)
 413                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 414                                 then
 415                                         echo "error: $title: invalid non-numeric in range" \
 416                                                 "start: '$orig_selector'" >&2
 417                                         exit 1
 418                                 fi
 419                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 420                                 then
 421                                         echo "error: $title: invalid non-numeric in range" \
 422                                                 "end: '$orig_selector'" >&2
 423                                         exit 1
 424                                 fi
 425                                 ;;
 426                         *)
 427                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 428                                 then
 429                                         echo "error: $title: invalid non-numeric in test" \
 430                                                 "selector: '$orig_selector'" >&2
 431                                         exit 1
 432                                 fi
 433                 esac
 434
 435                 # Short cut for "obvious" cases
 436                 test -z "$include" && test -z "$positive" && continue
 437                 test -n "$include" && test -n "$positive" && continue
 438
 439                 case "$selector" in
 440                         -*)
 441                                 if test $arg -le ${selector#-}
 442                                 then
 443                                         include=$positive
 444                                 fi
 445                                 ;;
 446                         *-)
 447                                 if test $arg -ge ${selector%-}
 448                                 then
 449                                         include=$positive
 450                                 fi
 451                                 ;;
 452                         *-*)
 453                                 if test ${selector%%-*} -le $arg \
 454                                         && test $arg -le ${selector#*-}
 455                                 then
 456                                         include=$positive
 457                                 fi
 458                                 ;;
 459                         *)
 460                                 if test $arg -eq $selector
 461                                 then
 462                                         include=$positive
 463                                 fi
 464                                 ;;
 465                 esac
 466         done
 467
 468         test -n "$include"
 469 }
 470
 471 maybe_teardown_verbose () {
 472         test -z "$verbose_only" && return
 473         exec 4>/dev/null 3>/dev/null
 474         verbose=
 475 }
 476
 477 last_verbose=t
 478 maybe_setup_verbose () {
 479         test -z "$verbose_only" && return
 480         if match_pattern_list $test_count $verbose_only
 481         then
 482                 exec 4>&2 3>&1
 483                 # Emit a delimiting blank line when going from
 484                 # non-verbose to verbose.  Within verbose mode the
 485                 # delimiter is printed by test_expect_*.  The choice
 486                 # of the initial $last_verbose is such that before
 487                 # test 1, we do not print it.
 488                 test -z "$last_verbose" && echo >&3 ""
 489                 verbose=t
 490         else
 491                 exec 4>/dev/null 3>/dev/null
 492                 verbose=
 493         fi
 494         last_verbose=$verbose
 495 }
 496
 497 maybe_teardown_valgrind () {
 498         test -z "$GIT_VALGRIND" && return
 499         GIT_VALGRIND_ENABLED=
 500 }
 501
 502 maybe_setup_valgrind () {
 503         test -z "$GIT_VALGRIND" && return
 504         if test -z "$valgrind_only"
 505         then
 506                 GIT_VALGRIND_ENABLED=t
 507                 return
 508         fi
 509         GIT_VALGRIND_ENABLED=
 510         if match_pattern_list $test_count $valgrind_only
 511         then
 512                 GIT_VALGRIND_ENABLED=t
 513         fi
 514 }
 515
 516 test_eval_ () {
 517         # This is a separate function because some tests use
 518         # "return" to end a test_expect_success block early.
 519         eval </dev/null >&3 2>&4 "$*"
 520 }
 521
 522 test_run_ () {
 523         test_cleanup=:
 524         expecting_failure=$2
 525         setup_malloc_check
 526         test_eval_ "$1"
 527         eval_ret=$?
 528         teardown_malloc_check
 529
 530         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 531         then
 532                 setup_malloc_check
 533                 test_eval_ "$test_cleanup"
 534                 teardown_malloc_check
 535         fi
 536         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 537         then
 538                 echo ""
 539         fi
 540         return "$eval_ret"
 541 }
 542
 543 test_start_ () {
 544         test_count=$(($test_count+1))
 545         maybe_setup_verbose
 546         maybe_setup_valgrind
 547 }
 548
 549 test_finish_ () {
 550         echo >&3 ""
 551         maybe_teardown_valgrind
 552         maybe_teardown_verbose
 553 }
 554
 555 test_skip () {
 556         to_skip=
 557         skipped_reason=
 558         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 559         then
 560                 to_skip=t
 561                 skipped_reason="GIT_SKIP_TESTS"
 562         fi
 563         if test -z "$to_skip" && test -n "$test_prereq" &&
 564            ! test_have_prereq "$test_prereq"
 565         then
 566                 to_skip=t
 567
 568                 of_prereq=
 569                 if test "$missing_prereq" != "$test_prereq"
 570                 then
 571                         of_prereq=" of $test_prereq"
 572                 fi
 573                 skipped_reason="missing $missing_prereq${of_prereq}"
 574         fi
 575         if test -z "$to_skip" && test -n "$run_list" &&
 576                 ! match_test_selector_list '--run' $test_count "$run_list"
 577         then
 578                 to_skip=t
 579                 skipped_reason="--run"
 580         fi
 581
 582         case "$to_skip" in
 583         t)
 584                 say_color skip >&3 "skipping test: $@"
 585                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 586                 : true
 587                 ;;
 588         *)
 589                 false
 590                 ;;
 591         esac
 592 }
 593
 594 # stub; perf-lib overrides it
 595 test_at_end_hook_ () {
 596         :
 597 }
 598
 599 test_done () {
 600         GIT_EXIT_OK=t
 601
 602         if test -z "$HARNESS_ACTIVE"
 603         then
 604                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 605                 mkdir -p "$test_results_dir"
 606                 base=${0##*/}
 607                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 608
 609                 cat >>"$test_results_path" <<-EOF
 610                 total $test_count
 611                 success $test_success
 612                 fixed $test_fixed
 613                 broken $test_broken
 614                 failed $test_failure
 615
 616                 EOF
 617         fi
 618
 619         if test "$test_fixed" != 0
 620         then
 621                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 622         fi
 623         if test "$test_broken" != 0
 624         then
 625                 say_color warn "# still have $test_broken known breakage(s)"
 626         fi
 627         if test "$test_broken" != 0 || test "$test_fixed" != 0
 628         then
 629                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 630                 msg="remaining $test_remaining test(s)"
 631         else
 632                 test_remaining=$test_count
 633                 msg="$test_count test(s)"
 634         fi
 635         case "$test_failure" in
 636         0)
 637                 # Maybe print SKIP message
 638                 if test -n "$skip_all" && test $test_count -gt 0
 639                 then
 640                         error "Can't use skip_all after running some tests"
 641                 fi
 642                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 643
 644                 if test $test_external_has_tap -eq 0
 645                 then
 646                         if test $test_remaining -gt 0
 647                         then
 648                                 say_color pass "# passed all $msg"
 649                         fi
 650                         say "1..$test_count$skip_all"
 651                 fi
 652
 653                 test -d "$remove_trash" &&
 654                 cd "$(dirname "$remove_trash")" &&
 655                 rm -rf "$(basename "$remove_trash")"
 656
 657                 test_at_end_hook_
 658
 659                 exit 0 ;;
 660
 661         *)
 662                 if test $test_external_has_tap -eq 0
 663                 then
 664                         say_color error "# failed $test_failure among $msg"
 665                         say "1..$test_count"
 666                 fi
 667
 668                 exit 1 ;;
 669
 670         esac
 671 }
 672
 673 if test -n "$valgrind"
 674 then
 675         make_symlink () {
 676                 test -h "$2" &&
 677                 test "$1" = "$(readlink "$2")" || {
 678                         # be super paranoid
 679                         if mkdir "$2".lock
 680                         then
 681                                 rm -f "$2" &&
 682                                 ln -s "$1" "$2" &&
 683                                 rm -r "$2".lock
 684                         else
 685                                 while test -d "$2".lock
 686                                 do
 687                                         say "Waiting for lock on $2."
 688                                         sleep 1
 689                                 done
 690                         fi
 691                 }
 692         }
 693
 694         make_valgrind_symlink () {
 695                 # handle only executables, unless they are shell libraries that
 696                 # need to be in the exec-path.
 697                 test -x "$1" ||
 698                 test "# " = "$(head -c 2 <"$1")" ||
 699                 return;
 700
 701                 base=$(basename "$1")
 702                 symlink_target=$GIT_BUILD_DIR/$base
 703                 # do not override scripts
 704                 if test -x "$symlink_target" &&
 705                     test ! -d "$symlink_target" &&
 706                     test "#!" != "$(head -c 2 < "$symlink_target")"
 707                 then
 708                         symlink_target=../valgrind.sh
 709                 fi
 710                 case "$base" in
 711                 *.sh|*.perl)
 712                         symlink_target=../unprocessed-script
 713                 esac
 714                 # create the link, or replace it if it is out of date
 715                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 716         }
 717
 718         # override all git executables in TEST_DIRECTORY/..
 719         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 720         mkdir -p "$GIT_VALGRIND"/bin
 721         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 722         do
 723                 make_valgrind_symlink $file
 724         done
 725         # special-case the mergetools loadables
 726         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 727         OLDIFS=$IFS
 728         IFS=:
 729         for path in $PATH
 730         do
 731                 ls "$path"/git-* 2> /dev/null |
 732                 while read file
 733                 do
 734                         make_valgrind_symlink "$file"
 735                 done
 736         done
 737         IFS=$OLDIFS
 738         PATH=$GIT_VALGRIND/bin:$PATH
 739         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 740         export GIT_VALGRIND
 741         GIT_VALGRIND_MODE="$valgrind"
 742         export GIT_VALGRIND_MODE
 743         GIT_VALGRIND_ENABLED=t
 744         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 745         export GIT_VALGRIND_ENABLED
 746 elif test -n "$GIT_TEST_INSTALLED"
 747 then
 748         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 749         error "Cannot run git from $GIT_TEST_INSTALLED."
 750         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 751         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 752 else # normal case, use ../bin-wrappers only unless $with_dashes:
 753         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 754         if ! test -x "$git_bin_dir/git"
 755         then
 756                 if test -z "$with_dashes"
 757                 then
 758                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 759                 fi
 760                 with_dashes=t
 761         fi
 762         PATH="$git_bin_dir:$PATH"
 763         GIT_EXEC_PATH=$GIT_BUILD_DIR
 764         if test -n "$with_dashes"
 765         then
 766                 PATH="$GIT_BUILD_DIR:$PATH"
 767         fi
 768 fi
 769 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 770 GIT_CONFIG_NOSYSTEM=1
 771 GIT_ATTR_NOSYSTEM=1
 772 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 773
 774 if test -z "$GIT_TEST_CMP"
 775 then
 776         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 777         then
 778                 GIT_TEST_CMP="$DIFF -c"
 779         else
 780                 GIT_TEST_CMP="$DIFF -u"
 781         fi
 782 fi
 783
 784 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 785 export GITPERLLIB
 786 test -d "$GIT_BUILD_DIR"/templates/blt || {
 787         error "You haven't built things yet, have you?"
 788 }
 789
 790 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 791 then
 792         echo >&2 'You need to build test-chmtime:'
 793         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 794         exit 1
 795 fi
 796
 797 # Test repository
 798 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 799 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 800 case "$TRASH_DIRECTORY" in
 801 /*) ;; # absolute path is good
 802  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 803 esac
 804 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 805 rm -fr "$TRASH_DIRECTORY" || {
 806         GIT_EXIT_OK=t
 807         echo >&5 "FATAL: Cannot prepare test area"
 808         exit 1
 809 }
 810
 811 HOME="$TRASH_DIRECTORY"
 812 export HOME
 813
 814 if test -z "$TEST_NO_CREATE_REPO"
 815 then
 816         test_create_repo "$TRASH_DIRECTORY"
 817 else
 818         mkdir -p "$TRASH_DIRECTORY"
 819 fi
 820 # Use -P to resolve symlinks in our working directory so that the cwd
 821 # in subprocesses like git equals our $PWD (for pathname comparisons).
 822 cd -P "$TRASH_DIRECTORY" || exit 1
 823
 824 this_test=${0##*/}
 825 this_test=${this_test%%-*}
 826 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 827 then
 828         say_color info >&3 "skipping test $this_test altogether"
 829         skip_all="skip all tests in $this_test"
 830         test_done
 831 fi
 832
 833 # Provide an implementation of the 'yes' utility
 834 yes () {
 835         if test $# = 0
 836         then
 837                 y=y
 838         else
 839                 y="$*"
 840         fi
 841
 842         while echo "$y"
 843         do
 844                 :
 845         done
 846 }
 847
 848 # Fix some commands on Windows
 849 case $(uname -s) in
 850 *MINGW*)
 851         # Windows has its own (incompatible) sort and find
 852         sort () {
 853                 /usr/bin/sort "$@"
 854         }
 855         find () {
 856                 /usr/bin/find "$@"
 857         }
 858         sum () {
 859                 md5sum "$@"
 860         }
 861         # git sees Windows-style pwd
 862         pwd () {
 863                 builtin pwd -W
 864         }
 865         # no POSIX permissions
 866         # backslashes in pathspec are converted to '/'
 867         # exec does not inherit the PID
 868         test_set_prereq MINGW
 869         test_set_prereq NOT_CYGWIN
 870         test_set_prereq SED_STRIPS_CR
 871         test_set_prereq GREP_STRIPS_CR
 872         GIT_TEST_CMP=mingw_test_cmp
 873         ;;
 874 *CYGWIN*)
 875         test_set_prereq POSIXPERM
 876         test_set_prereq EXECKEEPSPID
 877         test_set_prereq NOT_MINGW
 878         test_set_prereq CYGWIN
 879         test_set_prereq SED_STRIPS_CR
 880         test_set_prereq GREP_STRIPS_CR
 881         ;;
 882 *)
 883         test_set_prereq POSIXPERM
 884         test_set_prereq BSLASHPSPEC
 885         test_set_prereq EXECKEEPSPID
 886         test_set_prereq NOT_MINGW
 887         test_set_prereq NOT_CYGWIN
 888         ;;
 889 esac
 890
 891 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 892 test -z "$NO_PERL" && test_set_prereq PERL
 893 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 894 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 895 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 896
 897 # Can we rely on git's output in the C locale?
 898 if test -n "$GETTEXT_POISON"
 899 then
 900         GIT_GETTEXT_POISON=YesPlease
 901         export GIT_GETTEXT_POISON
 902         test_set_prereq GETTEXT_POISON
 903 else
 904         test_set_prereq C_LOCALE_OUTPUT
 905 fi
 906
 907 # Use this instead of test_cmp to compare files that contain expected and
 908 # actual output from git commands that can be translated.  When running
 909 # under GETTEXT_POISON this pretends that the command produced expected
 910 # results.
 911 test_i18ncmp () {
 912         test -n "$GETTEXT_POISON" || test_cmp "$@"
 913 }
 914
 915 # Use this instead of "grep expected-string actual" to see if the
 916 # output from a git command that can be translated either contains an
 917 # expected string, or does not contain an unwanted one.  When running
 918 # under GETTEXT_POISON this pretends that the command produced expected
 919 # results.
 920 test_i18ngrep () {
 921         if test -n "$GETTEXT_POISON"
 922         then
 923             : # pretend success
 924         elif test "x!" = "x$1"
 925         then
 926                 shift
 927                 ! grep "$@"
 928         else
 929                 grep "$@"
 930         fi
 931 }
 932
 933 test_lazy_prereq PIPE '
 934         # test whether the filesystem supports FIFOs
 935         case $(uname -s) in
 936         CYGWIN*)
 937                 false
 938                 ;;
 939         *)
 940                 rm -f testfifo && mkfifo testfifo
 941                 ;;
 942         esac
 943 '
 944
 945 test_lazy_prereq SYMLINKS '
 946         # test whether the filesystem supports symbolic links
 947         ln -s x y && test -h y
 948 '
 949
 950 test_lazy_prereq FILEMODE '
 951         test "$(git config --bool core.filemode)" = true
 952 '
 953
 954 test_lazy_prereq CASE_INSENSITIVE_FS '
 955         echo good >CamelCase &&
 956         echo bad >camelcase &&
 957         test "$(cat CamelCase)" != good
 958 '
 959
 960 test_lazy_prereq UTF8_NFD_TO_NFC '
 961         # check whether FS converts nfd unicode to nfc
 962         auml=$(printf "\303\244")
 963         aumlcdiar=$(printf "\141\314\210")
 964         >"$auml" &&
 965         case "$(echo *)" in
 966         "$aumlcdiar")
 967                 true ;;
 968         *)
 969                 false ;;
 970         esac
 971 '
 972
 973 test_lazy_prereq AUTOIDENT '
 974         sane_unset GIT_AUTHOR_NAME &&
 975         sane_unset GIT_AUTHOR_EMAIL &&
 976         git var GIT_AUTHOR_IDENT
 977 '
 978
 979 # When the tests are run as root, permission tests will report that
 980 # things are writable when they shouldn't be.
 981 test -w / || test_set_prereq SANITY
 982
 983 GIT_UNZIP=${GIT_UNZIP:-unzip}
 984 test_lazy_prereq UNZIP '
 985         "$GIT_UNZIP" -v
 986         test $? -ne 127
 987 '