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_OUTPUT_DIRECTORY/test-results"
  58         BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(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 unset GITPERLLIB
  96 GIT_AUTHOR_EMAIL=author@example.com
  97 GIT_AUTHOR_NAME='A U Thor'
  98 GIT_COMMITTER_EMAIL=committer@example.com
  99 GIT_COMMITTER_NAME='C O Mitter'
 100 GIT_MERGE_VERBOSITY=5
 101 GIT_MERGE_AUTOEDIT=no
 102 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 103 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 104 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 105 export EDITOR
 106
 107 # Add libc MALLOC and MALLOC_PERTURB test
 108 # only if we are not executing the test with valgrind
 109 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 110    test -n "$TEST_NO_MALLOC_CHECK"
 111 then
 112         setup_malloc_check () {
 113                 : nothing
 114         }
 115         teardown_malloc_check () {
 116                 : nothing
 117         }
 118 else
 119         setup_malloc_check () {
 120                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 121                 export MALLOC_CHECK_ MALLOC_PERTURB_
 122         }
 123         teardown_malloc_check () {
 124                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 125         }
 126 fi
 127
 128 # Protect ourselves from common misconfiguration to export
 129 # CDPATH into the environment
 130 unset CDPATH
 131
 132 unset GREP_OPTIONS
 133 unset UNZIP
 134
 135 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 136 1|2|true)
 137         echo "* warning: Some tests will not work if GIT_TRACE" \
 138                 "is set as to trace on STDERR ! *"
 139         echo "* warning: Please set GIT_TRACE to something" \
 140                 "other than 1, 2 or true ! *"
 141         ;;
 142 esac
 143
 144 # Convenience
 145 #
 146 # A regexp to match 5 and 40 hexdigits
 147 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 148 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 149
 150 # Zero SHA-1
 151 _z40=0000000000000000000000000000000000000000
 152
 153 # Line feed
 154 LF='
 155 '
 156
 157 export _x05 _x40 _z40 LF
 158
 159 # Each test should start with something like this, after copyright notices:
 160 #
 161 # test_description='Description of this test...
 162 # This test checks if command xyzzy does the right thing...
 163 # '
 164 # . ./test-lib.sh
 165 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 166                 TERM=$ORIGINAL_TERM &&
 167                 export TERM &&
 168                 [ -t 1 ] &&
 169                 tput bold >/dev/null 2>&1 &&
 170                 tput setaf 1 >/dev/null 2>&1 &&
 171                 tput sgr0 >/dev/null 2>&1
 172         ) &&
 173         color=t
 174
 175 while test "$#" -ne 0
 176 do
 177         case "$1" in
 178         -d|--d|--de|--deb|--debu|--debug)
 179                 debug=t; shift ;;
 180         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 181                 immediate=t; shift ;;
 182         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 183                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 184         -h|--h|--he|--hel|--help)
 185                 help=t; shift ;;
 186         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 187                 verbose=t; shift ;;
 188         --verbose-only=*)
 189                 verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 190                 shift ;;
 191         -q|--q|--qu|--qui|--quie|--quiet)
 192                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 193                 # passed without the ok/not ok details is always an error.
 194                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 195         --with-dashes)
 196                 with_dashes=t; shift ;;
 197         --no-color)
 198                 color=; shift ;;
 199         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 200                 valgrind=memcheck
 201                 shift ;;
 202         --valgrind=*)
 203                 valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 204                 shift ;;
 205         --valgrind-only=*)
 206                 valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 207                 shift ;;
 208         --tee)
 209                 shift ;; # was handled already
 210         --root=*)
 211                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 212                 shift ;;
 213         --statusprefix=*)
 214                 statusprefix=$(expr "z$1" : 'z[^=]*=\(.*\)')
 215                 shift ;;
 216         *)
 217                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 218         esac
 219 done
 220
 221 if test -n "$valgrind_only"
 222 then
 223         test -z "$valgrind" && valgrind=memcheck
 224         test -z "$verbose" && verbose_only="$valgrind_only"
 225 elif test -n "$valgrind"
 226 then
 227         verbose=t
 228 fi
 229
 230 if test -n "$color"
 231 then
 232         say_color () {
 233                 (
 234                 TERM=$ORIGINAL_TERM
 235                 export TERM
 236                 case "$1" in
 237                 error)
 238                         tput bold; tput setaf 1;; # bold red
 239                 skip)
 240                         tput setaf 4;; # blue
 241                 warn)
 242                         tput setaf 3;; # brown/yellow
 243                 pass)
 244                         tput setaf 2;; # green
 245                 info)
 246                         tput setaf 6;; # cyan
 247                 *)
 248                         test -n "$quiet" && return;;
 249                 esac
 250                 shift
 251                 printf "%s" "$*"
 252                 tput sgr0
 253                 echo
 254                 )
 255         }
 256 else
 257         say_color() {
 258                 test -z "$1" && test -n "$quiet" && return
 259                 shift
 260                 printf "%s\n" "$*"
 261         }
 262 fi
 263
 264 error () {
 265         say_color error "error: $*"
 266         GIT_EXIT_OK=t
 267         exit 1
 268 }
 269
 270 say () {
 271         say_color info "$*"
 272 }
 273
 274 test "${test_description}" != "" ||
 275 error "Test script did not set test_description."
 276
 277 if test "$help" = "t"
 278 then
 279         echo "$test_description"
 280         exit 0
 281 fi
 282
 283 exec 5>&1
 284 exec 6<&0
 285 if test "$verbose" = "t"
 286 then
 287         exec 4>&2 3>&1
 288 else
 289         exec 4>/dev/null 3>/dev/null
 290 fi
 291
 292 test_failure=0
 293 test_count=0
 294 test_fixed=0
 295 test_broken=0
 296 test_success=0
 297
 298 test_external_has_tap=0
 299
 300 die () {
 301         code=$?
 302         if test -n "$GIT_EXIT_OK"
 303         then
 304                 exit $code
 305         else
 306                 echo >&5 "FATAL: Unexpected exit with code $code"
 307                 exit 1
 308         fi
 309 }
 310
 311 GIT_EXIT_OK=
 312 trap 'die' EXIT
 313
 314 # The user-facing functions are loaded from a separate file so that
 315 # test_perf subshells can have them too
 316 . "$TEST_DIRECTORY/test-lib-functions.sh"
 317
 318 # You are not expected to call test_ok_ and test_failure_ directly, use
 319 # the text_expect_* functions instead.
 320
 321 test_ok_ () {
 322         test_success=$(($test_success + 1))
 323         say_color "" "${statusprefix}ok $test_count - $@"
 324 }
 325
 326 test_failure_ () {
 327         test_failure=$(($test_failure + 1))
 328         say_color error "${statusprefix}not ok $test_count - $1"
 329         shift
 330         echo "$@" | sed -e 's/^/#       /'
 331         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 332 }
 333
 334 test_known_broken_ok_ () {
 335         test_fixed=$(($test_fixed+1))
 336         say_color error "${statusprefix}ok $test_count - $@ # TODO known breakage vanished"
 337 }
 338
 339 test_known_broken_failure_ () {
 340         test_broken=$(($test_broken+1))
 341         say_color warn "${statusprefix}not ok $test_count - $@ # TODO known breakage"
 342 }
 343
 344 test_debug () {
 345         test "$debug" = "" || eval "$1"
 346 }
 347
 348 match_pattern_list () {
 349         arg="$1"
 350         shift
 351         test -z "$*" && return 1
 352         for pattern_
 353         do
 354                 case "$arg" in
 355                 $pattern_)
 356                         return 0
 357                 esac
 358         done
 359         return 1
 360 }
 361
 362 maybe_teardown_verbose () {
 363         test -z "$verbose_only" && return
 364         exec 4>/dev/null 3>/dev/null
 365         verbose=
 366 }
 367
 368 last_verbose=t
 369 maybe_setup_verbose () {
 370         test -z "$verbose_only" && return
 371         if match_pattern_list $test_count $verbose_only
 372         then
 373                 exec 4>&2 3>&1
 374                 # Emit a delimiting blank line when going from
 375                 # non-verbose to verbose.  Within verbose mode the
 376                 # delimiter is printed by test_expect_*.  The choice
 377                 # of the initial $last_verbose is such that before
 378                 # test 1, we do not print it.
 379                 test -z "$last_verbose" && echo >&3 ""
 380                 verbose=t
 381         else
 382                 exec 4>/dev/null 3>/dev/null
 383                 verbose=
 384         fi
 385         last_verbose=$verbose
 386 }
 387
 388 maybe_teardown_valgrind () {
 389         test -z "$GIT_VALGRIND" && return
 390         GIT_VALGRIND_ENABLED=
 391 }
 392
 393 maybe_setup_valgrind () {
 394         test -z "$GIT_VALGRIND" && return
 395         if test -z "$valgrind_only"
 396         then
 397                 GIT_VALGRIND_ENABLED=t
 398                 return
 399         fi
 400         GIT_VALGRIND_ENABLED=
 401         if match_pattern_list $test_count $valgrind_only
 402         then
 403                 GIT_VALGRIND_ENABLED=t
 404         fi
 405 }
 406
 407 test_eval_ () {
 408         # This is a separate function because some tests use
 409         # "return" to end a test_expect_success block early.
 410         eval </dev/null >&3 2>&4 "$*"
 411 }
 412
 413 test_run_ () {
 414         test_cleanup=:
 415         expecting_failure=$2
 416         setup_malloc_check
 417         test_eval_ "$1"
 418         eval_ret=$?
 419         teardown_malloc_check
 420
 421         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 422         then
 423                 setup_malloc_check
 424                 test_eval_ "$test_cleanup"
 425                 teardown_malloc_check
 426         fi
 427         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 428         then
 429                 echo ""
 430         fi
 431         return "$eval_ret"
 432 }
 433
 434 test_start_ () {
 435         test_count=$(($test_count+1))
 436         maybe_setup_verbose
 437         maybe_setup_valgrind
 438 }
 439
 440 test_finish_ () {
 441         echo >&3 ""
 442         maybe_teardown_valgrind
 443         maybe_teardown_verbose
 444 }
 445
 446 test_skip () {
 447         to_skip=
 448         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 449         then
 450                 to_skip=t
 451         fi
 452         if test -z "$to_skip" && test -n "$test_prereq" &&
 453            ! test_have_prereq "$test_prereq"
 454         then
 455                 to_skip=t
 456         fi
 457         case "$to_skip" in
 458         t)
 459                 of_prereq=
 460                 if test "$missing_prereq" != "$test_prereq"
 461                 then
 462                         of_prereq=" of $test_prereq"
 463                 fi
 464
 465                 say_color skip >&3 "${statusprefix}skipping test: $@"
 466                 say_color skip "${statusprefix}ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 467                 : true
 468                 ;;
 469         *)
 470                 false
 471                 ;;
 472         esac
 473 }
 474
 475 # stub; perf-lib overrides it
 476 test_at_end_hook_ () {
 477         :
 478 }
 479
 480 test_done () {
 481         GIT_EXIT_OK=t
 482
 483         # Note: t0000 relies on $HARNESS_ACTIVE disabling the .counts
 484         # output file
 485         if test -z "$HARNESS_ACTIVE"
 486         then
 487                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 488                 mkdir -p "$test_results_dir"
 489                 base=${0##*/}
 490                 test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 491
 492                 cat >>"$test_results_path" <<-EOF
 493                 total $test_count
 494                 success $test_success
 495                 fixed $test_fixed
 496                 broken $test_broken
 497                 failed $test_failure
 498
 499                 EOF
 500         fi
 501
 502         if test "$test_fixed" != 0
 503         then
 504                 say_color error "${statusprefix}# $test_fixed known breakage(s) vanished; please update test(s)"
 505         fi
 506         if test "$test_broken" != 0
 507         then
 508                 say_color warn "${statusprefix}# still have $test_broken known breakage(s)"
 509         fi
 510         if test "$test_broken" != 0 || test "$test_fixed" != 0
 511         then
 512                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 513                 msg="remaining $test_remaining test(s)"
 514         else
 515                 test_remaining=$test_count
 516                 msg="$test_count test(s)"
 517         fi
 518         case "$test_failure" in
 519         0)
 520                 # Maybe print SKIP message
 521                 if test -n "$skip_all" && test $test_count -gt 0
 522                 then
 523                         error "Can't use skip_all after running some tests"
 524                 fi
 525                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 526
 527                 if test $test_external_has_tap -eq 0
 528                 then
 529                         if test $test_remaining -gt 0
 530                         then
 531                                 say_color pass "${statusprefix}# passed all $msg"
 532                         fi
 533                         say "${statusprefix}1..$test_count$skip_all"
 534                 fi
 535
 536                 test -d "$remove_trash" &&
 537                 cd "$(dirname "$remove_trash")" &&
 538                 rm -rf "$(basename "$remove_trash")"
 539
 540                 test_at_end_hook_
 541
 542                 exit 0 ;;
 543
 544         *)
 545                 if test $test_external_has_tap -eq 0
 546                 then
 547                         say_color error "${statusprefix}# failed $test_failure among $msg"
 548                         say "${statusprefix}1..$test_count"
 549                 fi
 550
 551                 exit 1 ;;
 552
 553         esac
 554 }
 555
 556 if test -n "$valgrind"
 557 then
 558         make_symlink () {
 559                 test -h "$2" &&
 560                 test "$1" = "$(readlink "$2")" || {
 561                         # be super paranoid
 562                         if mkdir "$2".lock
 563                         then
 564                                 rm -f "$2" &&
 565                                 ln -s "$1" "$2" &&
 566                                 rm -r "$2".lock
 567                         else
 568                                 while test -d "$2".lock
 569                                 do
 570                                         say "Waiting for lock on $2."
 571                                         sleep 1
 572                                 done
 573                         fi
 574                 }
 575         }
 576
 577         make_valgrind_symlink () {
 578                 # handle only executables, unless they are shell libraries that
 579                 # need to be in the exec-path.  We will just use "#!" as a
 580                 # guess for a shell-script, since we have no idea what the user
 581                 # may have configured as the shell path.
 582                 test -x "$1" ||
 583                 test "#!" = "$(head -c 2 <"$1")" ||
 584                 return;
 585
 586                 base=$(basename "$1")
 587                 symlink_target=$GIT_BUILD_DIR/$base
 588                 # do not override scripts
 589                 if test -x "$symlink_target" &&
 590                     test ! -d "$symlink_target" &&
 591                     test "#!" != "$(head -c 2 < "$symlink_target")"
 592                 then
 593                         symlink_target=../valgrind.sh
 594                 fi
 595                 case "$base" in
 596                 *.sh|*.perl)
 597                         symlink_target=../unprocessed-script
 598                 esac
 599                 # create the link, or replace it if it is out of date
 600                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 601         }
 602
 603         # override all git executables in TEST_DIRECTORY/..
 604         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 605         mkdir -p "$GIT_VALGRIND"/bin
 606         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 607         do
 608                 make_valgrind_symlink $file
 609         done
 610         # special-case the mergetools loadables
 611         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 612         OLDIFS=$IFS
 613         IFS=:
 614         for path in $PATH
 615         do
 616                 ls "$path"/git-* 2> /dev/null |
 617                 while read file
 618                 do
 619                         make_valgrind_symlink "$file"
 620                 done
 621         done
 622         IFS=$OLDIFS
 623         PATH=$GIT_VALGRIND/bin:$PATH
 624         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 625         export GIT_VALGRIND
 626         GIT_VALGRIND_MODE="$valgrind"
 627         export GIT_VALGRIND_MODE
 628         GIT_VALGRIND_ENABLED=t
 629         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 630         export GIT_VALGRIND_ENABLED
 631 elif test -n "$GIT_TEST_INSTALLED"
 632 then
 633         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 634         error "Cannot run git from $GIT_TEST_INSTALLED."
 635         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 636         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 637 else # normal case, use ../bin-wrappers only unless $with_dashes:
 638         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 639         if ! test -x "$git_bin_dir/git"
 640         then
 641                 if test -z "$with_dashes"
 642                 then
 643                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 644                 fi
 645                 with_dashes=t
 646         fi
 647         PATH="$git_bin_dir:$PATH"
 648         GIT_EXEC_PATH=$GIT_BUILD_DIR
 649         if test -n "$with_dashes"
 650         then
 651                 PATH="$GIT_BUILD_DIR:$PATH"
 652         fi
 653 fi
 654 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 655 unset GIT_CONFIG
 656 GIT_CONFIG_NOSYSTEM=1
 657 GIT_ATTR_NOSYSTEM=1
 658 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 659
 660 if test -z "$GIT_TEST_CMP"
 661 then
 662         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 663         then
 664                 GIT_TEST_CMP="$DIFF -c"
 665         else
 666                 GIT_TEST_CMP="$DIFF -u"
 667         fi
 668 fi
 669
 670 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 671 export GITPERLLIB
 672 test -d "$GIT_BUILD_DIR"/templates/blt || {
 673         error "You haven't built things yet, have you?"
 674 }
 675
 676 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 677 then
 678         GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
 679         export GITPYTHONLIB
 680         test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
 681                 error "You haven't built git_remote_helpers yet, have you?"
 682         }
 683 fi
 684
 685 if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 686 then
 687         echo >&2 'You need to build test-chmtime:'
 688         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 689         exit 1
 690 fi
 691
 692 # Test repository
 693 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 694 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 695 case "$TRASH_DIRECTORY" in
 696 /*) ;; # absolute path is good
 697  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 698 esac
 699 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 700 rm -fr "$TRASH_DIRECTORY" || {
 701         GIT_EXIT_OK=t
 702         echo >&5 "FATAL: Cannot prepare test area"
 703         exit 1
 704 }
 705
 706 HOME="$TRASH_DIRECTORY"
 707 export HOME
 708
 709 if test -z "$TEST_NO_CREATE_REPO"
 710 then
 711         test_create_repo "$TRASH_DIRECTORY"
 712 else
 713         mkdir -p "$TRASH_DIRECTORY"
 714 fi
 715 # Use -P to resolve symlinks in our working directory so that the cwd
 716 # in subprocesses like git equals our $PWD (for pathname comparisons).
 717 cd -P "$TRASH_DIRECTORY" || exit 1
 718
 719 this_test=${0##*/}
 720 this_test=${this_test%%-*}
 721 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 722 then
 723         say_color info >&3 "skipping test $this_test altogether"
 724         skip_all="skip all tests in $this_test"
 725         test_done
 726 fi
 727
 728 # Provide an implementation of the 'yes' utility
 729 yes () {
 730         if test $# = 0
 731         then
 732                 y=y
 733         else
 734                 y="$*"
 735         fi
 736
 737         while echo "$y"
 738         do
 739                 :
 740         done
 741 }
 742
 743 # Fix some commands on Windows
 744 case $(uname -s) in
 745 *MINGW*)
 746         # Windows has its own (incompatible) sort and find
 747         sort () {
 748                 /usr/bin/sort "$@"
 749         }
 750         find () {
 751                 /usr/bin/find "$@"
 752         }
 753         sum () {
 754                 md5sum "$@"
 755         }
 756         # git sees Windows-style pwd
 757         pwd () {
 758                 builtin pwd -W
 759         }
 760         # no POSIX permissions
 761         # backslashes in pathspec are converted to '/'
 762         # exec does not inherit the PID
 763         test_set_prereq MINGW
 764         test_set_prereq NOT_CYGWIN
 765         test_set_prereq SED_STRIPS_CR
 766         test_set_prereq GREP_STRIPS_CR
 767         ;;
 768 *CYGWIN*)
 769         test_set_prereq POSIXPERM
 770         test_set_prereq EXECKEEPSPID
 771         test_set_prereq NOT_MINGW
 772         test_set_prereq CYGWIN
 773         test_set_prereq SED_STRIPS_CR
 774         test_set_prereq GREP_STRIPS_CR
 775         ;;
 776 *)
 777         test_set_prereq POSIXPERM
 778         test_set_prereq BSLASHPSPEC
 779         test_set_prereq EXECKEEPSPID
 780         test_set_prereq NOT_MINGW
 781         test_set_prereq NOT_CYGWIN
 782         ;;
 783 esac
 784
 785 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 786 test -z "$NO_PERL" && test_set_prereq PERL
 787 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 788 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 789 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 790
 791 # Can we rely on git's output in the C locale?
 792 if test -n "$GETTEXT_POISON"
 793 then
 794         GIT_GETTEXT_POISON=YesPlease
 795         export GIT_GETTEXT_POISON
 796         test_set_prereq GETTEXT_POISON
 797 else
 798         test_set_prereq C_LOCALE_OUTPUT
 799 fi
 800
 801 # Use this instead of test_cmp to compare files that contain expected and
 802 # actual output from git commands that can be translated.  When running
 803 # under GETTEXT_POISON this pretends that the command produced expected
 804 # results.
 805 test_i18ncmp () {
 806         test -n "$GETTEXT_POISON" || test_cmp "$@"
 807 }
 808
 809 # Use this instead of "grep expected-string actual" to see if the
 810 # output from a git command that can be translated either contains an
 811 # expected string, or does not contain an unwanted one.  When running
 812 # under GETTEXT_POISON this pretends that the command produced expected
 813 # results.
 814 test_i18ngrep () {
 815         if test -n "$GETTEXT_POISON"
 816         then
 817             : # pretend success
 818         elif test "x!" = "x$1"
 819         then
 820                 shift
 821                 ! grep "$@"
 822         else
 823                 grep "$@"
 824         fi
 825 }
 826
 827 test_lazy_prereq PIPE '
 828         # test whether the filesystem supports FIFOs
 829         case $(uname -s) in
 830         CYGWIN*)
 831                 false
 832                 ;;
 833         *)
 834                 rm -f testfifo && mkfifo testfifo
 835                 ;;
 836         esac
 837 '
 838
 839 test_lazy_prereq SYMLINKS '
 840         # test whether the filesystem supports symbolic links
 841         ln -s x y && test -h y
 842 '
 843
 844 test_lazy_prereq CASE_INSENSITIVE_FS '
 845         echo good >CamelCase &&
 846         echo bad >camelcase &&
 847         test "$(cat CamelCase)" != good
 848 '
 849
 850 test_lazy_prereq UTF8_NFD_TO_NFC '
 851         # check whether FS converts nfd unicode to nfc
 852         auml=$(printf "\303\244")
 853         aumlcdiar=$(printf "\141\314\210")
 854         >"$auml" &&
 855         case "$(echo *)" in
 856         "$aumlcdiar")
 857                 true ;;
 858         *)
 859                 false ;;
 860         esac
 861 '
 862
 863 test_lazy_prereq AUTOIDENT '
 864         sane_unset GIT_AUTHOR_NAME &&
 865         sane_unset GIT_AUTHOR_EMAIL &&
 866         git var GIT_AUTHOR_IDENT
 867 '
 868
 869 # When the tests are run as root, permission tests will report that
 870 # things are writable when they shouldn't be.
 871 test -w / || test_set_prereq SANITY
 872
 873 GIT_UNZIP=${GIT_UNZIP:-unzip}
 874 test_lazy_prereq UNZIP '
 875         "$GIT_UNZIP" -v
 876         test $? -ne 127
 877 '