Andrew's git / gitweb.git / t/test-lib.sh
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t / test-lib.shon commit test-bzr.sh, test-hg.sh: allow running from any dir (d3243d7)
   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
  19ORIGINAL_TERM=$TERM
  20
  21# Test the binaries we have just built.  The tests are kept in
  22# t/ subdirectory and are run in 'trash directory' subdirectory.
  23if test -z "$TEST_DIRECTORY"
  24then
  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=$(pwd)
  29else
  30        # ensure that TEST_DIRECTORY is an absolute path so that it
  31        # is valid even if the current working directory is changed
  32        TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
  33fi
  34if test -z "$TEST_OUTPUT_DIRECTORY"
  35then
  36        # Similarly, override this to store the test-results subdir
  37        # elsewhere
  38        TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  39fi
  40GIT_BUILD_DIR="$TEST_DIRECTORY"/..
  41
  42################################################################
  43# It appears that people try to run tests without building...
  44"$GIT_BUILD_DIR/git" >/dev/null
  45if test $? != 1
  46then
  47        echo >&2 'error: you do not seem to have built git yet.'
  48        exit 1
  49fi
  50
  51. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  52export 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/$BASENAME.out, too.
  56case "$GIT_TEST_TEE_STARTED, $* " in
  57done,*)
  58        # do not redirect again
  59        ;;
  60*' --tee '*|*' --va'*)
  61        mkdir -p "$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        ;;
  68esac
  69
  70# For repeatability, reset the environment to known value.
  71LANG=C
  72LC_ALL=C
  73PAGER=cat
  74TZ=UTC
  75TERM=dumb
  76export LANG LC_ALL PAGER TERM TZ
  77EDITOR=:
  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.
  82unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
  83        my @env = keys %ENV;
  84        my $ok = join("|", qw(
  85                TRACE
  86                DEBUG
  87                USE_LOOKUP
  88                TEST
  89                .*_TEST
  90                PROVE
  91                VALGRIND
  92                UNZIP
  93                PERF_
  94        ));
  95        my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
  96        print join("\n", @vars);
  97')
  98unset XDG_CONFIG_HOME
  99unset GITPERLLIB
 100GIT_AUTHOR_EMAIL=author@example.com
 101GIT_AUTHOR_NAME='A U Thor'
 102GIT_COMMITTER_EMAIL=committer@example.com
 103GIT_COMMITTER_NAME='C O Mitter'
 104GIT_MERGE_VERBOSITY=5
 105GIT_MERGE_AUTOEDIT=no
 106export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 107export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 108export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 109export EDITOR
 110
 111# Add libc MALLOC and MALLOC_PERTURB test
 112# only if we are not executing the test with valgrind
 113if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 114   test -n "$TEST_NO_MALLOC_CHECK"
 115then
 116        setup_malloc_check () {
 117                : nothing
 118        }
 119        teardown_malloc_check () {
 120                : nothing
 121        }
 122else
 123        setup_malloc_check () {
 124                MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 125                export MALLOC_CHECK_ MALLOC_PERTURB_
 126        }
 127        teardown_malloc_check () {
 128                unset MALLOC_CHECK_ MALLOC_PERTURB_
 129        }
 130fi
 131
 132# Protect ourselves from common misconfiguration to export
 133# CDPATH into the environment
 134unset CDPATH
 135
 136unset GREP_OPTIONS
 137unset UNZIP
 138
 139case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 1401|2|true)
 141        echo "* warning: Some tests will not work if GIT_TRACE" \
 142                "is set as to trace on STDERR ! *"
 143        echo "* warning: Please set GIT_TRACE to something" \
 144                "other than 1, 2 or true ! *"
 145        ;;
 146esac
 147
 148# Convenience
 149#
 150# A regexp to match 5 and 40 hexdigits
 151_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 152_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 153
 154# Zero SHA-1
 155_z40=0000000000000000000000000000000000000000
 156
 157# Line feed
 158LF='
 159'
 160
 161export _x05 _x40 _z40 LF
 162
 163# Each test should start with something like this, after copyright notices:
 164#
 165# test_description='Description of this test...
 166# This test checks if command xyzzy does the right thing...
 167# '
 168# . ./test-lib.sh
 169[ "x$ORIGINAL_TERM" != "xdumb" ] && (
 170                TERM=$ORIGINAL_TERM &&
 171                export TERM &&
 172                [ -t 1 ] &&
 173                tput bold >/dev/null 2>&1 &&
 174                tput setaf 1 >/dev/null 2>&1 &&
 175                tput sgr0 >/dev/null 2>&1
 176        ) &&
 177        color=t
 178
 179while test "$#" -ne 0
 180do
 181        case "$1" in
 182        -d|--d|--de|--deb|--debu|--debug)
 183                debug=t; shift ;;
 184        -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 185                immediate=t; shift ;;
 186        -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 187                GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 188        -h|--h|--he|--hel|--help)
 189                help=t; shift ;;
 190        -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 191                verbose=t; shift ;;
 192        --verbose-only=*)
 193                verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 194                shift ;;
 195        -q|--q|--qu|--qui|--quie|--quiet)
 196                # Ignore --quiet under a TAP::Harness. Saying how many tests
 197                # passed without the ok/not ok details is always an error.
 198                test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 199        --with-dashes)
 200                with_dashes=t; shift ;;
 201        --no-color)
 202                color=; shift ;;
 203        --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 204                valgrind=memcheck
 205                shift ;;
 206        --valgrind=*)
 207                valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 208                shift ;;
 209        --valgrind-only=*)
 210                valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 211                shift ;;
 212        --tee)
 213                shift ;; # was handled already
 214        --root=*)
 215                root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 216                shift ;;
 217        *)
 218                echo "error: unknown test option '$1'" >&2; exit 1 ;;
 219        esac
 220done
 221
 222if test -n "$valgrind_only"
 223then
 224        test -z "$valgrind" && valgrind=memcheck
 225        test -z "$verbose" && verbose_only="$valgrind_only"
 226elif test -n "$valgrind"
 227then
 228        verbose=t
 229fi
 230
 231if test -n "$color"
 232then
 233        say_color () {
 234                (
 235                TERM=$ORIGINAL_TERM
 236                export TERM
 237                case "$1" in
 238                error)
 239                        tput bold; tput setaf 1;; # bold red
 240                skip)
 241                        tput setaf 4;; # blue
 242                warn)
 243                        tput setaf 3;; # brown/yellow
 244                pass)
 245                        tput setaf 2;; # green
 246                info)
 247                        tput setaf 6;; # cyan
 248                *)
 249                        test -n "$quiet" && return;;
 250                esac
 251                shift
 252                printf "%s" "$*"
 253                tput sgr0
 254                echo
 255                )
 256        }
 257else
 258        say_color() {
 259                test -z "$1" && test -n "$quiet" && return
 260                shift
 261                printf "%s\n" "$*"
 262        }
 263fi
 264
 265error () {
 266        say_color error "error: $*"
 267        GIT_EXIT_OK=t
 268        exit 1
 269}
 270
 271say () {
 272        say_color info "$*"
 273}
 274
 275test "${test_description}" != "" ||
 276error "Test script did not set test_description."
 277
 278if test "$help" = "t"
 279then
 280        echo "$test_description"
 281        exit 0
 282fi
 283
 284exec 5>&1
 285exec 6<&0
 286if test "$verbose" = "t"
 287then
 288        exec 4>&2 3>&1
 289else
 290        exec 4>/dev/null 3>/dev/null
 291fi
 292
 293test_failure=0
 294test_count=0
 295test_fixed=0
 296test_broken=0
 297test_success=0
 298
 299test_external_has_tap=0
 300
 301die () {
 302        code=$?
 303        if test -n "$GIT_EXIT_OK"
 304        then
 305                exit $code
 306        else
 307                echo >&5 "FATAL: Unexpected exit with code $code"
 308                exit 1
 309        fi
 310}
 311
 312GIT_EXIT_OK=
 313trap 'die' EXIT
 314
 315# The user-facing functions are loaded from a separate file so that
 316# test_perf subshells can have them too
 317. "$TEST_DIRECTORY/test-lib-functions.sh"
 318
 319# You are not expected to call test_ok_ and test_failure_ directly, use
 320# the test_expect_* functions instead.
 321
 322test_ok_ () {
 323        test_success=$(($test_success + 1))
 324        say_color "" "ok $test_count - $@"
 325}
 326
 327test_failure_ () {
 328        test_failure=$(($test_failure + 1))
 329        say_color error "not ok $test_count - $1"
 330        shift
 331        echo "$@" | sed -e 's/^/#       /'
 332        test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 333}
 334
 335test_known_broken_ok_ () {
 336        test_fixed=$(($test_fixed+1))
 337        say_color error "ok $test_count - $@ # TODO known breakage vanished"
 338}
 339
 340test_known_broken_failure_ () {
 341        test_broken=$(($test_broken+1))
 342        say_color warn "not ok $test_count - $@ # TODO known breakage"
 343}
 344
 345test_debug () {
 346        test "$debug" = "" || eval "$1"
 347}
 348
 349match_pattern_list () {
 350        arg="$1"
 351        shift
 352        test -z "$*" && return 1
 353        for pattern_
 354        do
 355                case "$arg" in
 356                $pattern_)
 357                        return 0
 358                esac
 359        done
 360        return 1
 361}
 362
 363maybe_teardown_verbose () {
 364        test -z "$verbose_only" && return
 365        exec 4>/dev/null 3>/dev/null
 366        verbose=
 367}
 368
 369last_verbose=t
 370maybe_setup_verbose () {
 371        test -z "$verbose_only" && return
 372        if match_pattern_list $test_count $verbose_only
 373        then
 374                exec 4>&2 3>&1
 375                # Emit a delimiting blank line when going from
 376                # non-verbose to verbose.  Within verbose mode the
 377                # delimiter is printed by test_expect_*.  The choice
 378                # of the initial $last_verbose is such that before
 379                # test 1, we do not print it.
 380                test -z "$last_verbose" && echo >&3 ""
 381                verbose=t
 382        else
 383                exec 4>/dev/null 3>/dev/null
 384                verbose=
 385        fi
 386        last_verbose=$verbose
 387}
 388
 389maybe_teardown_valgrind () {
 390        test -z "$GIT_VALGRIND" && return
 391        GIT_VALGRIND_ENABLED=
 392}
 393
 394maybe_setup_valgrind () {
 395        test -z "$GIT_VALGRIND" && return
 396        if test -z "$valgrind_only"
 397        then
 398                GIT_VALGRIND_ENABLED=t
 399                return
 400        fi
 401        GIT_VALGRIND_ENABLED=
 402        if match_pattern_list $test_count $valgrind_only
 403        then
 404                GIT_VALGRIND_ENABLED=t
 405        fi
 406}
 407
 408test_eval_ () {
 409        # This is a separate function because some tests use
 410        # "return" to end a test_expect_success block early.
 411        eval </dev/null >&3 2>&4 "$*"
 412}
 413
 414test_run_ () {
 415        test_cleanup=:
 416        expecting_failure=$2
 417        setup_malloc_check
 418        test_eval_ "$1"
 419        eval_ret=$?
 420        teardown_malloc_check
 421
 422        if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 423        then
 424                setup_malloc_check
 425                test_eval_ "$test_cleanup"
 426                teardown_malloc_check
 427        fi
 428        if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 429        then
 430                echo ""
 431        fi
 432        return "$eval_ret"
 433}
 434
 435test_start_ () {
 436        test_count=$(($test_count+1))
 437        maybe_setup_verbose
 438        maybe_setup_valgrind
 439}
 440
 441test_finish_ () {
 442        echo >&3 ""
 443        maybe_teardown_valgrind
 444        maybe_teardown_verbose
 445}
 446
 447test_skip () {
 448        to_skip=
 449        if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 450        then
 451                to_skip=t
 452        fi
 453        if test -z "$to_skip" && test -n "$test_prereq" &&
 454           ! test_have_prereq "$test_prereq"
 455        then
 456                to_skip=t
 457        fi
 458        case "$to_skip" in
 459        t)
 460                of_prereq=
 461                if test "$missing_prereq" != "$test_prereq"
 462                then
 463                        of_prereq=" of $test_prereq"
 464                fi
 465
 466                say_color skip >&3 "skipping test: $@"
 467                say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 468                : true
 469                ;;
 470        *)
 471                false
 472                ;;
 473        esac
 474}
 475
 476# stub; perf-lib overrides it
 477test_at_end_hook_ () {
 478        :
 479}
 480
 481test_done () {
 482        GIT_EXIT_OK=t
 483
 484        # Note: t0000 relies on $HARNESS_ACTIVE disabling the .counts
 485        # output file
 486        if test -z "$HARNESS_ACTIVE"
 487        then
 488                test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 489                mkdir -p "$test_results_dir"
 490                base=${0##*/}
 491                test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 492
 493                cat >>"$test_results_path" <<-EOF
 494                total $test_count
 495                success $test_success
 496                fixed $test_fixed
 497                broken $test_broken
 498                failed $test_failure
 499
 500                EOF
 501        fi
 502
 503        if test "$test_fixed" != 0
 504        then
 505                say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 506        fi
 507        if test "$test_broken" != 0
 508        then
 509                say_color warn "# still have $test_broken known breakage(s)"
 510        fi
 511        if test "$test_broken" != 0 || test "$test_fixed" != 0
 512        then
 513                test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 514                msg="remaining $test_remaining test(s)"
 515        else
 516                test_remaining=$test_count
 517                msg="$test_count test(s)"
 518        fi
 519        case "$test_failure" in
 520        0)
 521                # Maybe print SKIP message
 522                if test -n "$skip_all" && test $test_count -gt 0
 523                then
 524                        error "Can't use skip_all after running some tests"
 525                fi
 526                [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 527
 528                if test $test_external_has_tap -eq 0
 529                then
 530                        if test $test_remaining -gt 0
 531                        then
 532                                say_color pass "# passed all $msg"
 533                        fi
 534                        say "1..$test_count$skip_all"
 535                fi
 536
 537                test -d "$remove_trash" &&
 538                cd "$(dirname "$remove_trash")" &&
 539                rm -rf "$(basename "$remove_trash")"
 540
 541                test_at_end_hook_
 542
 543                exit 0 ;;
 544
 545        *)
 546                if test $test_external_has_tap -eq 0
 547                then
 548                        say_color error "# failed $test_failure among $msg"
 549                        say "1..$test_count"
 550                fi
 551
 552                exit 1 ;;
 553
 554        esac
 555}
 556
 557if test -n "$valgrind"
 558then
 559        make_symlink () {
 560                test -h "$2" &&
 561                test "$1" = "$(readlink "$2")" || {
 562                        # be super paranoid
 563                        if mkdir "$2".lock
 564                        then
 565                                rm -f "$2" &&
 566                                ln -s "$1" "$2" &&
 567                                rm -r "$2".lock
 568                        else
 569                                while test -d "$2".lock
 570                                do
 571                                        say "Waiting for lock on $2."
 572                                        sleep 1
 573                                done
 574                        fi
 575                }
 576        }
 577
 578        make_valgrind_symlink () {
 579                # handle only executables, unless they are shell libraries that
 580                # need to be in the exec-path.  We will just use "#!" as a
 581                # guess for a shell-script, since we have no idea what the user
 582                # may have configured as the shell path.
 583                test -x "$1" ||
 584                test "#!" = "$(head -c 2 <"$1")" ||
 585                return;
 586
 587                base=$(basename "$1")
 588                symlink_target=$GIT_BUILD_DIR/$base
 589                # do not override scripts
 590                if test -x "$symlink_target" &&
 591                    test ! -d "$symlink_target" &&
 592                    test "#!" != "$(head -c 2 < "$symlink_target")"
 593                then
 594                        symlink_target=../valgrind.sh
 595                fi
 596                case "$base" in
 597                *.sh|*.perl)
 598                        symlink_target=../unprocessed-script
 599                esac
 600                # create the link, or replace it if it is out of date
 601                make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 602        }
 603
 604        # override all git executables in TEST_DIRECTORY/..
 605        GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 606        mkdir -p "$GIT_VALGRIND"/bin
 607        for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 608        do
 609                make_valgrind_symlink $file
 610        done
 611        # special-case the mergetools loadables
 612        make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 613        OLDIFS=$IFS
 614        IFS=:
 615        for path in $PATH
 616        do
 617                ls "$path"/git-* 2> /dev/null |
 618                while read file
 619                do
 620                        make_valgrind_symlink "$file"
 621                done
 622        done
 623        IFS=$OLDIFS
 624        PATH=$GIT_VALGRIND/bin:$PATH
 625        GIT_EXEC_PATH=$GIT_VALGRIND/bin
 626        export GIT_VALGRIND
 627        GIT_VALGRIND_MODE="$valgrind"
 628        export GIT_VALGRIND_MODE
 629        GIT_VALGRIND_ENABLED=t
 630        test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 631        export GIT_VALGRIND_ENABLED
 632elif test -n "$GIT_TEST_INSTALLED"
 633then
 634        GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 635        error "Cannot run git from $GIT_TEST_INSTALLED."
 636        PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 637        GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 638else # normal case, use ../bin-wrappers only unless $with_dashes:
 639        git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 640        if ! test -x "$git_bin_dir/git"
 641        then
 642                if test -z "$with_dashes"
 643                then
 644                        say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 645                fi
 646                with_dashes=t
 647        fi
 648        PATH="$git_bin_dir:$PATH"
 649        GIT_EXEC_PATH=$GIT_BUILD_DIR
 650        if test -n "$with_dashes"
 651        then
 652                PATH="$GIT_BUILD_DIR:$PATH"
 653        fi
 654fi
 655GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 656unset GIT_CONFIG
 657GIT_CONFIG_NOSYSTEM=1
 658GIT_ATTR_NOSYSTEM=1
 659export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 660
 661if test -z "$GIT_TEST_CMP"
 662then
 663        if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 664        then
 665                GIT_TEST_CMP="$DIFF -c"
 666        else
 667                GIT_TEST_CMP="$DIFF -u"
 668        fi
 669fi
 670
 671GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 672export GITPERLLIB
 673test -d "$GIT_BUILD_DIR"/templates/blt || {
 674        error "You haven't built things yet, have you?"
 675}
 676
 677if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 678then
 679        echo >&2 'You need to build test-chmtime:'
 680        echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 681        exit 1
 682fi
 683
 684# Test repository
 685TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 686test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 687case "$TRASH_DIRECTORY" in
 688/*) ;; # absolute path is good
 689 *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 690esac
 691test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 692rm -fr "$TRASH_DIRECTORY" || {
 693        GIT_EXIT_OK=t
 694        echo >&5 "FATAL: Cannot prepare test area"
 695        exit 1
 696}
 697
 698HOME="$TRASH_DIRECTORY"
 699export HOME
 700
 701if test -z "$TEST_NO_CREATE_REPO"
 702then
 703        test_create_repo "$TRASH_DIRECTORY"
 704else
 705        mkdir -p "$TRASH_DIRECTORY"
 706fi
 707# Use -P to resolve symlinks in our working directory so that the cwd
 708# in subprocesses like git equals our $PWD (for pathname comparisons).
 709cd -P "$TRASH_DIRECTORY" || exit 1
 710
 711this_test=${0##*/}
 712this_test=${this_test%%-*}
 713if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 714then
 715        say_color info >&3 "skipping test $this_test altogether"
 716        skip_all="skip all tests in $this_test"
 717        test_done
 718fi
 719
 720# Provide an implementation of the 'yes' utility
 721yes () {
 722        if test $# = 0
 723        then
 724                y=y
 725        else
 726                y="$*"
 727        fi
 728
 729        while echo "$y"
 730        do
 731                :
 732        done
 733}
 734
 735# Fix some commands on Windows
 736case $(uname -s) in
 737*MINGW*)
 738        # Windows has its own (incompatible) sort and find
 739        sort () {
 740                /usr/bin/sort "$@"
 741        }
 742        find () {
 743                /usr/bin/find "$@"
 744        }
 745        sum () {
 746                md5sum "$@"
 747        }
 748        # git sees Windows-style pwd
 749        pwd () {
 750                builtin pwd -W
 751        }
 752        # no POSIX permissions
 753        # backslashes in pathspec are converted to '/'
 754        # exec does not inherit the PID
 755        test_set_prereq MINGW
 756        test_set_prereq NOT_CYGWIN
 757        test_set_prereq SED_STRIPS_CR
 758        test_set_prereq GREP_STRIPS_CR
 759        GIT_TEST_CMP=mingw_test_cmp
 760        ;;
 761*CYGWIN*)
 762        test_set_prereq POSIXPERM
 763        test_set_prereq EXECKEEPSPID
 764        test_set_prereq NOT_MINGW
 765        test_set_prereq CYGWIN
 766        test_set_prereq SED_STRIPS_CR
 767        test_set_prereq GREP_STRIPS_CR
 768        ;;
 769*)
 770        test_set_prereq POSIXPERM
 771        test_set_prereq BSLASHPSPEC
 772        test_set_prereq EXECKEEPSPID
 773        test_set_prereq NOT_MINGW
 774        test_set_prereq NOT_CYGWIN
 775        ;;
 776esac
 777
 778( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 779test -z "$NO_PERL" && test_set_prereq PERL
 780test -z "$NO_PYTHON" && test_set_prereq PYTHON
 781test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 782test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 783
 784# Can we rely on git's output in the C locale?
 785if test -n "$GETTEXT_POISON"
 786then
 787        GIT_GETTEXT_POISON=YesPlease
 788        export GIT_GETTEXT_POISON
 789        test_set_prereq GETTEXT_POISON
 790else
 791        test_set_prereq C_LOCALE_OUTPUT
 792fi
 793
 794# Use this instead of test_cmp to compare files that contain expected and
 795# actual output from git commands that can be translated.  When running
 796# under GETTEXT_POISON this pretends that the command produced expected
 797# results.
 798test_i18ncmp () {
 799        test -n "$GETTEXT_POISON" || test_cmp "$@"
 800}
 801
 802# Use this instead of "grep expected-string actual" to see if the
 803# output from a git command that can be translated either contains an
 804# expected string, or does not contain an unwanted one.  When running
 805# under GETTEXT_POISON this pretends that the command produced expected
 806# results.
 807test_i18ngrep () {
 808        if test -n "$GETTEXT_POISON"
 809        then
 810            : # pretend success
 811        elif test "x!" = "x$1"
 812        then
 813                shift
 814                ! grep "$@"
 815        else
 816                grep "$@"
 817        fi
 818}
 819
 820test_lazy_prereq PIPE '
 821        # test whether the filesystem supports FIFOs
 822        case $(uname -s) in
 823        CYGWIN*)
 824                false
 825                ;;
 826        *)
 827                rm -f testfifo && mkfifo testfifo
 828                ;;
 829        esac
 830'
 831
 832test_lazy_prereq SYMLINKS '
 833        # test whether the filesystem supports symbolic links
 834        ln -s x y && test -h y
 835'
 836
 837test_lazy_prereq CASE_INSENSITIVE_FS '
 838        echo good >CamelCase &&
 839        echo bad >camelcase &&
 840        test "$(cat CamelCase)" != good
 841'
 842
 843test_lazy_prereq UTF8_NFD_TO_NFC '
 844        # check whether FS converts nfd unicode to nfc
 845        auml=$(printf "\303\244")
 846        aumlcdiar=$(printf "\141\314\210")
 847        >"$auml" &&
 848        case "$(echo *)" in
 849        "$aumlcdiar")
 850                true ;;
 851        *)
 852                false ;;
 853        esac
 854'
 855
 856test_lazy_prereq AUTOIDENT '
 857        sane_unset GIT_AUTHOR_NAME &&
 858        sane_unset GIT_AUTHOR_EMAIL &&
 859        git var GIT_AUTHOR_IDENT
 860'
 861
 862# When the tests are run as root, permission tests will report that
 863# things are writable when they shouldn't be.
 864test -w / || test_set_prereq SANITY
 865
 866GIT_UNZIP=${GIT_UNZIP:-unzip}
 867test_lazy_prereq UNZIP '
 868        "$GIT_UNZIP" -v
 869        test $? -ne 127
 870'