git.oblomov.eu Git - git/blob - 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 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 113 GIT_TRACE_BARE=1
 114 export GIT_TRACE_BARE
 115
 116 if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
 117 then
 118         GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
 119         export GIT_INDEX_VERSION
 120 fi
 121
 122 # Add libc MALLOC and MALLOC_PERTURB test
 123 # only if we are not executing the test with valgrind
 124 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 125    test -n "$TEST_NO_MALLOC_CHECK"
 126 then
 127         setup_malloc_check () {
 128                 : nothing
 129         }
 130         teardown_malloc_check () {
 131                 : nothing
 132         }
 133 else
 134         setup_malloc_check () {
 135                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 136                 export MALLOC_CHECK_ MALLOC_PERTURB_
 137         }
 138         teardown_malloc_check () {
 139                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 140         }
 141 fi
 142
 143 # Protect ourselves from common misconfiguration to export
 144 # CDPATH into the environment
 145 unset CDPATH
 146
 147 unset GREP_OPTIONS
 148 unset UNZIP
 149
 150 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 151 1|2|true)
 152         echo "* warning: Some tests will not work if GIT_TRACE" \
 153                 "is set as to trace on STDERR ! *"
 154         echo "* warning: Please set GIT_TRACE to something" \
 155                 "other than 1, 2 or true ! *"
 156         ;;
 157 esac
 158
 159 # Convenience
 160 #
 161 # A regexp to match 5 and 40 hexdigits
 162 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 163 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 164
 165 # Zero SHA-1
 166 _z40=0000000000000000000000000000000000000000
 167
 168 # Line feed
 169 LF='
 170 '
 171
 172 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 173 # when case-folding filenames
 174 u200c=$(printf '\342\200\214')
 175
 176 export _x05 _x40 _z40 LF u200c
 177
 178 # Each test should start with something like this, after copyright notices:
 179 #
 180 # test_description='Description of this test...
 181 # This test checks if command xyzzy does the right thing...
 182 # '
 183 # . ./test-lib.sh
 184 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 185                 TERM=$ORIGINAL_TERM &&
 186                 export TERM &&
 187                 [ -t 1 ] &&
 188                 tput bold >/dev/null 2>&1 &&
 189                 tput setaf 1 >/dev/null 2>&1 &&
 190                 tput sgr0 >/dev/null 2>&1
 191         ) &&
 192         color=t
 193
 194 while test "$#" -ne 0
 195 do
 196         case "$1" in
 197         -d|--d|--de|--deb|--debu|--debug)
 198                 debug=t; shift ;;
 199         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 200                 immediate=t; shift ;;
 201         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 202                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 203         -r)
 204                 shift; test "$#" -ne 0 || {
 205                         echo 'error: -r requires an argument' >&2;
 206                         exit 1;
 207                 }
 208                 run_list=$1; shift ;;
 209         --run=*)
 210                 run_list=$(expr "z$1" : 'z[^=]*=\(.*\)'); shift ;;
 211         -h|--h|--he|--hel|--help)
 212                 help=t; shift ;;
 213         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 214                 verbose=t; shift ;;
 215         --verbose-only=*)
 216                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 217                 shift ;;
 218         -q|--q|--qu|--qui|--quie|--quiet)
 219                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 220                 # passed without the ok/not ok details is always an error.
 221                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 222         --with-dashes)
 223                 with_dashes=t; shift ;;
 224         --no-color)
 225                 color=; shift ;;
 226         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 227                 valgrind=memcheck
 228                 shift ;;
 229         --valgrind=*)
 230                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 231                 shift ;;
 232         --valgrind-only=*)
 233                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 234                 shift ;;
 235         --tee)
 236                 shift ;; # was handled already
 237         --root=*)
 238                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 239                 shift ;;
 240         -x)
 241                 trace=t
 242                 verbose=t
 243                 shift ;;
 244         *)
 245                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 246         esac
 247 done
 248
 249 if test -n "$valgrind_only"
 250 then
 251         test -z "$valgrind" && valgrind=memcheck
 252         test -z "$verbose" && verbose_only="$valgrind_only"
 253 elif test -n "$valgrind"
 254 then
 255         verbose=t
 256 fi
 257
 258 if test -n "$color"
 259 then
 260         say_color () {
 261                 (
 262                 TERM=$ORIGINAL_TERM
 263                 export TERM
 264                 case "$1" in
 265                 error)
 266                         tput bold; tput setaf 1;; # bold red
 267                 skip)
 268                         tput setaf 4;; # blue
 269                 warn)
 270                         tput setaf 3;; # brown/yellow
 271                 pass)
 272                         tput setaf 2;; # green
 273                 info)
 274                         tput setaf 6;; # cyan
 275                 *)
 276                         test -n "$quiet" && return;;
 277                 esac
 278                 shift
 279                 printf "%s" "$*"
 280                 tput sgr0
 281                 echo
 282                 )
 283         }
 284 else
 285         say_color() {
 286                 test -z "$1" && test -n "$quiet" && return
 287                 shift
 288                 printf "%s\n" "$*"
 289         }
 290 fi
 291
 292 error () {
 293         say_color error "error: $*"
 294         GIT_EXIT_OK=t
 295         exit 1
 296 }
 297
 298 say () {
 299         say_color info "$*"
 300 }
 301
 302 test "${test_description}" != "" ||
 303 error "Test script did not set test_description."
 304
 305 if test "$help" = "t"
 306 then
 307         printf '%s\n' "$test_description"
 308         exit 0
 309 fi
 310
 311 exec 5>&1
 312 exec 6<&0
 313 if test "$verbose" = "t"
 314 then
 315         exec 4>&2 3>&1
 316 else
 317         exec 4>/dev/null 3>/dev/null
 318 fi
 319
 320 test_failure=0
 321 test_count=0
 322 test_fixed=0
 323 test_broken=0
 324 test_success=0
 325
 326 test_external_has_tap=0
 327
 328 die () {
 329         code=$?
 330         if test -n "$GIT_EXIT_OK"
 331         then
 332                 exit $code
 333         else
 334                 echo >&5 "FATAL: Unexpected exit with code $code"
 335                 exit 1
 336         fi
 337 }
 338
 339 GIT_EXIT_OK=
 340 trap 'die' EXIT
 341
 342 # The user-facing functions are loaded from a separate file so that
 343 # test_perf subshells can have them too
 344 . "$TEST_DIRECTORY/test-lib-functions.sh"
 345
 346 # You are not expected to call test_ok_ and test_failure_ directly, use
 347 # the test_expect_* functions instead.
 348
 349 test_ok_ () {
 350         test_success=$(($test_success + 1))
 351         say_color "" "ok $test_count - $@"
 352 }
 353
 354 test_failure_ () {
 355         test_failure=$(($test_failure + 1))
 356         say_color error "not ok $test_count - $1"
 357         shift
 358         printf '%s\n' "$*" | sed -e 's/^/#      /'
 359         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 360 }
 361
 362 test_known_broken_ok_ () {
 363         test_fixed=$(($test_fixed+1))
 364         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 365 }
 366
 367 test_known_broken_failure_ () {
 368         test_broken=$(($test_broken+1))
 369         say_color warn "not ok $test_count - $@ # TODO known breakage"
 370 }
 371
 372 test_debug () {
 373         test "$debug" = "" || eval "$1"
 374 }
 375
 376 match_pattern_list () {
 377         arg="$1"
 378         shift
 379         test -z "$*" && return 1
 380         for pattern_
 381         do
 382                 case "$arg" in
 383                 $pattern_)
 384                         return 0
 385                 esac
 386         done
 387         return 1
 388 }
 389
 390 match_test_selector_list () {
 391         title="$1"
 392         shift
 393         arg="$1"
 394         shift
 395         test -z "$1" && return 0
 396
 397         # Both commas and whitespace are accepted as separators.
 398         OLDIFS=$IFS
 399         IFS='   ,'
 400         set -- $1
 401         IFS=$OLDIFS
 402
 403         # If the first selector is negative we include by default.
 404         include=
 405         case "$1" in
 406                 !*) include=t ;;
 407         esac
 408
 409         for selector
 410         do
 411                 orig_selector=$selector
 412
 413                 positive=t
 414                 case "$selector" in
 415                         !*)
 416                                 positive=
 417                                 selector=${selector##?}
 418                                 ;;
 419                 esac
 420
 421                 test -z "$selector" && continue
 422
 423                 case "$selector" in
 424                         *-*)
 425                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 426                                 then
 427                                         echo "error: $title: invalid non-numeric in range" \
 428                                                 "start: '$orig_selector'" >&2
 429                                         exit 1
 430                                 fi
 431                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 432                                 then
 433                                         echo "error: $title: invalid non-numeric in range" \
 434                                                 "end: '$orig_selector'" >&2
 435                                         exit 1
 436                                 fi
 437                                 ;;
 438                         *)
 439                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 440                                 then
 441                                         echo "error: $title: invalid non-numeric in test" \
 442                                                 "selector: '$orig_selector'" >&2
 443                                         exit 1
 444                                 fi
 445                 esac
 446
 447                 # Short cut for "obvious" cases
 448                 test -z "$include" && test -z "$positive" && continue
 449                 test -n "$include" && test -n "$positive" && continue
 450
 451                 case "$selector" in
 452                         -*)
 453                                 if test $arg -le ${selector#-}
 454                                 then
 455                                         include=$positive
 456                                 fi
 457                                 ;;
 458                         *-)
 459                                 if test $arg -ge ${selector%-}
 460                                 then
 461                                         include=$positive
 462                                 fi
 463                                 ;;
 464                         *-*)
 465                                 if test ${selector%%-*} -le $arg \
 466                                         && test $arg -le ${selector#*-}
 467                                 then
 468                                         include=$positive
 469                                 fi
 470                                 ;;
 471                         *)
 472                                 if test $arg -eq $selector
 473                                 then
 474                                         include=$positive
 475                                 fi
 476                                 ;;
 477                 esac
 478         done
 479
 480         test -n "$include"
 481 }
 482
 483 maybe_teardown_verbose () {
 484         test -z "$verbose_only" && return
 485         exec 4>/dev/null 3>/dev/null
 486         verbose=
 487 }
 488
 489 last_verbose=t
 490 maybe_setup_verbose () {
 491         test -z "$verbose_only" && return
 492         if match_pattern_list $test_count $verbose_only
 493         then
 494                 exec 4>&2 3>&1
 495                 # Emit a delimiting blank line when going from
 496                 # non-verbose to verbose.  Within verbose mode the
 497                 # delimiter is printed by test_expect_*.  The choice
 498                 # of the initial $last_verbose is such that before
 499                 # test 1, we do not print it.
 500                 test -z "$last_verbose" && echo >&3 ""
 501                 verbose=t
 502         else
 503                 exec 4>/dev/null 3>/dev/null
 504                 verbose=
 505         fi
 506         last_verbose=$verbose
 507 }
 508
 509 maybe_teardown_valgrind () {
 510         test -z "$GIT_VALGRIND" && return
 511         GIT_VALGRIND_ENABLED=
 512 }
 513
 514 maybe_setup_valgrind () {
 515         test -z "$GIT_VALGRIND" && return
 516         if test -z "$valgrind_only"
 517         then
 518                 GIT_VALGRIND_ENABLED=t
 519                 return
 520         fi
 521         GIT_VALGRIND_ENABLED=
 522         if match_pattern_list $test_count $valgrind_only
 523         then
 524                 GIT_VALGRIND_ENABLED=t
 525         fi
 526 }
 527
 528 # This is a separate function because some tests use
 529 # "return" to end a test_expect_success block early
 530 # (and we want to make sure we run any cleanup like
 531 # "set +x").
 532 test_eval_inner_ () {
 533         # Do not add anything extra (including LF) after '$*'
 534         eval "
 535                 test \"$trace\" = t && set -x
 536                 $*"
 537 }
 538
 539 test_eval_ () {
 540         # We run this block with stderr redirected to avoid extra cruft
 541         # during a "-x" trace. Once in "set -x" mode, we cannot prevent
 542         # the shell from printing the "set +x" to turn it off (nor the saving
 543         # of $? before that). But we can make sure that the output goes to
 544         # /dev/null.
 545         #
 546         # The test itself is run with stderr put back to &4 (so either to
 547         # /dev/null, or to the original stderr if --verbose was used).
 548         {
 549                 test_eval_inner_ "$@" </dev/null >&3 2>&4
 550                 test_eval_ret_=$?
 551                 if test "$trace" = t
 552                 then
 553                         set +x
 554                         if test "$test_eval_ret_" != 0
 555                         then
 556                                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 557                         fi
 558                 fi
 559         } 2>/dev/null
 560         return $test_eval_ret_
 561 }
 562
 563 test_run_ () {
 564         test_cleanup=:
 565         expecting_failure=$2
 566         setup_malloc_check
 567         test_eval_ "$1"
 568         eval_ret=$?
 569         teardown_malloc_check
 570
 571         if test -z "$immediate" || test $eval_ret = 0 ||
 572            test -n "$expecting_failure" && test "$test_cleanup" != ":"
 573         then
 574                 setup_malloc_check
 575                 test_eval_ "$test_cleanup"
 576                 teardown_malloc_check
 577         fi
 578         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 579         then
 580                 echo ""
 581         fi
 582         return "$eval_ret"
 583 }
 584
 585 test_start_ () {
 586         test_count=$(($test_count+1))
 587         maybe_setup_verbose
 588         maybe_setup_valgrind
 589 }
 590
 591 test_finish_ () {
 592         echo >&3 ""
 593         maybe_teardown_valgrind
 594         maybe_teardown_verbose
 595 }
 596
 597 test_skip () {
 598         to_skip=
 599         skipped_reason=
 600         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 601         then
 602                 to_skip=t
 603                 skipped_reason="GIT_SKIP_TESTS"
 604         fi
 605         if test -z "$to_skip" && test -n "$test_prereq" &&
 606            ! test_have_prereq "$test_prereq"
 607         then
 608                 to_skip=t
 609
 610                 of_prereq=
 611                 if test "$missing_prereq" != "$test_prereq"
 612                 then
 613                         of_prereq=" of $test_prereq"
 614                 fi
 615                 skipped_reason="missing $missing_prereq${of_prereq}"
 616         fi
 617         if test -z "$to_skip" && test -n "$run_list" &&
 618                 ! match_test_selector_list '--run' $test_count "$run_list"
 619         then
 620                 to_skip=t
 621                 skipped_reason="--run"
 622         fi
 623
 624         case "$to_skip" in
 625         t)
 626                 say_color skip >&3 "skipping test: $@"
 627                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 628                 : true
 629                 ;;
 630         *)
 631                 false
 632                 ;;
 633         esac
 634 }
 635
 636 # stub; perf-lib overrides it
 637 test_at_end_hook_ () {
 638         :
 639 }
 640
 641 test_done () {
 642         GIT_EXIT_OK=t
 643
 644         if test -z "$HARNESS_ACTIVE"
 645         then
 646                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 647                 mkdir -p "$test_results_dir"
 648                 base=${0##*/}
 649                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 650
 651                 cat >>"$test_results_path" <<-EOF
 652                 total $test_count
 653                 success $test_success
 654                 fixed $test_fixed
 655                 broken $test_broken
 656                 failed $test_failure
 657
 658                 EOF
 659         fi
 660
 661         if test "$test_fixed" != 0
 662         then
 663                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 664         fi
 665         if test "$test_broken" != 0
 666         then
 667                 say_color warn "# still have $test_broken known breakage(s)"
 668         fi
 669         if test "$test_broken" != 0 || test "$test_fixed" != 0
 670         then
 671                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 672                 msg="remaining $test_remaining test(s)"
 673         else
 674                 test_remaining=$test_count
 675                 msg="$test_count test(s)"
 676         fi
 677         case "$test_failure" in
 678         0)
 679                 # Maybe print SKIP message
 680                 if test -n "$skip_all" && test $test_count -gt 0
 681                 then
 682                         error "Can't use skip_all after running some tests"
 683                 fi
 684                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 685
 686                 if test $test_external_has_tap -eq 0
 687                 then
 688                         if test $test_remaining -gt 0
 689                         then
 690                                 say_color pass "# passed all $msg"
 691                         fi
 692                         say "1..$test_count$skip_all"
 693                 fi
 694
 695                 test -d "$remove_trash" &&
 696                 cd "$(dirname "$remove_trash")" &&
 697                 rm -rf "$(basename "$remove_trash")"
 698
 699                 test_at_end_hook_
 700
 701                 exit 0 ;;
 702
 703         *)
 704                 if test $test_external_has_tap -eq 0
 705                 then
 706                         say_color error "# failed $test_failure among $msg"
 707                         say "1..$test_count"
 708                 fi
 709
 710                 exit 1 ;;
 711
 712         esac
 713 }
 714
 715 if test -n "$valgrind"
 716 then
 717         make_symlink () {
 718                 test -h "$2" &&
 719                 test "$1" = "$(readlink "$2")" || {
 720                         # be super paranoid
 721                         if mkdir "$2".lock
 722                         then
 723                                 rm -f "$2" &&
 724                                 ln -s "$1" "$2" &&
 725                                 rm -r "$2".lock
 726                         else
 727                                 while test -d "$2".lock
 728                                 do
 729                                         say "Waiting for lock on $2."
 730                                         sleep 1
 731                                 done
 732                         fi
 733                 }
 734         }
 735
 736         make_valgrind_symlink () {
 737                 # handle only executables, unless they are shell libraries that
 738                 # need to be in the exec-path.
 739                 test -x "$1" ||
 740                 test "# " = "$(head -c 2 <"$1")" ||
 741                 return;
 742
 743                 base=$(basename "$1")
 744                 symlink_target=$GIT_BUILD_DIR/$base
 745                 # do not override scripts
 746                 if test -x "$symlink_target" &&
 747                     test ! -d "$symlink_target" &&
 748                     test "#!" != "$(head -c 2 < "$symlink_target")"
 749                 then
 750                         symlink_target=../valgrind.sh
 751                 fi
 752                 case "$base" in
 753                 *.sh|*.perl)
 754                         symlink_target=../unprocessed-script
 755                 esac
 756                 # create the link, or replace it if it is out of date
 757                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 758         }
 759
 760         # override all git executables in TEST_DIRECTORY/..
 761         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 762         mkdir -p "$GIT_VALGRIND"/bin
 763         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 764         do
 765                 make_valgrind_symlink $file
 766         done
 767         # special-case the mergetools loadables
 768         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 769         OLDIFS=$IFS
 770         IFS=:
 771         for path in $PATH
 772         do
 773                 ls "$path"/git-* 2> /dev/null |
 774                 while read file
 775                 do
 776                         make_valgrind_symlink "$file"
 777                 done
 778         done
 779         IFS=$OLDIFS
 780         PATH=$GIT_VALGRIND/bin:$PATH
 781         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 782         export GIT_VALGRIND
 783         GIT_VALGRIND_MODE="$valgrind"
 784         export GIT_VALGRIND_MODE
 785         GIT_VALGRIND_ENABLED=t
 786         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 787         export GIT_VALGRIND_ENABLED
 788 elif test -n "$GIT_TEST_INSTALLED"
 789 then
 790         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 791         error "Cannot run git from $GIT_TEST_INSTALLED."
 792         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 793         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 794 else # normal case, use ../bin-wrappers only unless $with_dashes:
 795         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 796         if ! test -x "$git_bin_dir/git"
 797         then
 798                 if test -z "$with_dashes"
 799                 then
 800                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 801                 fi
 802                 with_dashes=t
 803         fi
 804         PATH="$git_bin_dir:$PATH"
 805         GIT_EXEC_PATH=$GIT_BUILD_DIR
 806         if test -n "$with_dashes"
 807         then
 808                 PATH="$GIT_BUILD_DIR:$PATH"
 809         fi
 810 fi
 811 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 812 GIT_CONFIG_NOSYSTEM=1
 813 GIT_ATTR_NOSYSTEM=1
 814 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 815
 816 if test -z "$GIT_TEST_CMP"
 817 then
 818         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 819         then
 820                 GIT_TEST_CMP="$DIFF -c"
 821         else
 822                 GIT_TEST_CMP="$DIFF -u"
 823         fi
 824 fi
 825
 826 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 827 export GITPERLLIB
 828 test -d "$GIT_BUILD_DIR"/templates/blt || {
 829         error "You haven't built things yet, have you?"
 830 }
 831
 832 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 833 then
 834         echo >&2 'You need to build test-chmtime:'
 835         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 836         exit 1
 837 fi
 838
 839 # Test repository
 840 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 841 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 842 case "$TRASH_DIRECTORY" in
 843 /*) ;; # absolute path is good
 844  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 845 esac
 846 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 847 rm -fr "$TRASH_DIRECTORY" || {
 848         GIT_EXIT_OK=t
 849         echo >&5 "FATAL: Cannot prepare test area"
 850         exit 1
 851 }
 852
 853 HOME="$TRASH_DIRECTORY"
 854 GNUPGHOME="$HOME/gnupg-home-not-used"
 855 export HOME GNUPGHOME
 856
 857 if test -z "$TEST_NO_CREATE_REPO"
 858 then
 859         test_create_repo "$TRASH_DIRECTORY"
 860 else
 861         mkdir -p "$TRASH_DIRECTORY"
 862 fi
 863 # Use -P to resolve symlinks in our working directory so that the cwd
 864 # in subprocesses like git equals our $PWD (for pathname comparisons).
 865 cd -P "$TRASH_DIRECTORY" || exit 1
 866
 867 this_test=${0##*/}
 868 this_test=${this_test%%-*}
 869 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 870 then
 871         say_color info >&3 "skipping test $this_test altogether"
 872         skip_all="skip all tests in $this_test"
 873         test_done
 874 fi
 875
 876 # Provide an implementation of the 'yes' utility
 877 yes () {
 878         if test $# = 0
 879         then
 880                 y=y
 881         else
 882                 y="$*"
 883         fi
 884
 885         while echo "$y"
 886         do
 887                 :
 888         done
 889 }
 890
 891 # Fix some commands on Windows
 892 case $(uname -s) in
 893 *MINGW*)
 894         # Windows has its own (incompatible) sort and find
 895         sort () {
 896                 /usr/bin/sort "$@"
 897         }
 898         find () {
 899                 /usr/bin/find "$@"
 900         }
 901         sum () {
 902                 md5sum "$@"
 903         }
 904         # git sees Windows-style pwd
 905         pwd () {
 906                 builtin pwd -W
 907         }
 908         # no POSIX permissions
 909         # backslashes in pathspec are converted to '/'
 910         # exec does not inherit the PID
 911         test_set_prereq MINGW
 912         test_set_prereq NATIVE_CRLF
 913         test_set_prereq SED_STRIPS_CR
 914         test_set_prereq GREP_STRIPS_CR
 915         GIT_TEST_CMP=mingw_test_cmp
 916         ;;
 917 *CYGWIN*)
 918         test_set_prereq POSIXPERM
 919         test_set_prereq EXECKEEPSPID
 920         test_set_prereq CYGWIN
 921         test_set_prereq SED_STRIPS_CR
 922         test_set_prereq GREP_STRIPS_CR
 923         ;;
 924 *)
 925         test_set_prereq POSIXPERM
 926         test_set_prereq BSLASHPSPEC
 927         test_set_prereq EXECKEEPSPID
 928         ;;
 929 esac
 930
 931 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 932 test -z "$NO_PERL" && test_set_prereq PERL
 933 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 934 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 935 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 936
 937 # Can we rely on git's output in the C locale?
 938 if test -n "$GETTEXT_POISON"
 939 then
 940         GIT_GETTEXT_POISON=YesPlease
 941         export GIT_GETTEXT_POISON
 942         test_set_prereq GETTEXT_POISON
 943 else
 944         test_set_prereq C_LOCALE_OUTPUT
 945 fi
 946
 947 # Use this instead of test_cmp to compare files that contain expected and
 948 # actual output from git commands that can be translated.  When running
 949 # under GETTEXT_POISON this pretends that the command produced expected
 950 # results.
 951 test_i18ncmp () {
 952         test -n "$GETTEXT_POISON" || test_cmp "$@"
 953 }
 954
 955 # Use this instead of "grep expected-string actual" to see if the
 956 # output from a git command that can be translated either contains an
 957 # expected string, or does not contain an unwanted one.  When running
 958 # under GETTEXT_POISON this pretends that the command produced expected
 959 # results.
 960 test_i18ngrep () {
 961         if test -n "$GETTEXT_POISON"
 962         then
 963             : # pretend success
 964         elif test "x!" = "x$1"
 965         then
 966                 shift
 967                 ! grep "$@"
 968         else
 969                 grep "$@"
 970         fi
 971 }
 972
 973 test_lazy_prereq PIPE '
 974         # test whether the filesystem supports FIFOs
 975         case $(uname -s) in
 976         CYGWIN*)
 977                 false
 978                 ;;
 979         *)
 980                 rm -f testfifo && mkfifo testfifo
 981                 ;;
 982         esac
 983 '
 984
 985 test_lazy_prereq SYMLINKS '
 986         # test whether the filesystem supports symbolic links
 987         ln -s x y && test -h y
 988 '
 989
 990 test_lazy_prereq FILEMODE '
 991         test "$(git config --bool core.filemode)" = true
 992 '
 993
 994 test_lazy_prereq CASE_INSENSITIVE_FS '
 995         echo good >CamelCase &&
 996         echo bad >camelcase &&
 997         test "$(cat CamelCase)" != good
 998 '
 999
1000 test_lazy_prereq UTF8_NFD_TO_NFC '
1001         # check whether FS converts nfd unicode to nfc
1002         auml=$(printf "\303\244")
1003         aumlcdiar=$(printf "\141\314\210")
1004         >"$auml" &&
1005         case "$(echo *)" in
1006         "$aumlcdiar")
1007                 true ;;
1008         *)
1009                 false ;;
1010         esac
1011 '
1012
1013 test_lazy_prereq AUTOIDENT '
1014         sane_unset GIT_AUTHOR_NAME &&
1015         sane_unset GIT_AUTHOR_EMAIL &&
1016         git var GIT_AUTHOR_IDENT
1017 '
1018
1019 test_lazy_prereq EXPENSIVE '
1020         test -n "$GIT_TEST_LONG"
1021 '
1022
1023 test_lazy_prereq USR_BIN_TIME '
1024         test -x /usr/bin/time
1025 '
1026
1027 # When the tests are run as root, permission tests will report that
1028 # things are writable when they shouldn't be.
1029 test -w / || test_set_prereq SANITY
1030
1031 GIT_UNZIP=${GIT_UNZIP:-unzip}
1032 test_lazy_prereq UNZIP '
1033         "$GIT_UNZIP" -v
1034         test $? -ne 127
1035 '