cff781b092b1612562565a46fe026fdfb86be9e5
   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=$(pwd)
  29fi
  30if test -z "$TEST_OUTPUT_DIRECTORY"
  31then
  32        # Similarly, override this to store the test-results subdir
  33        # elsewhere
  34        TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  35fi
  36GIT_BUILD_DIR="$TEST_DIRECTORY"/..
  37
  38################################################################
  39# It appears that people try to run tests without building...
  40"$GIT_BUILD_DIR/git" >/dev/null
  41if test $? != 1
  42then
  43        echo >&2 'error: you do not seem to have built git yet.'
  44        exit 1
  45fi
  46
  47. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  48export 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/$BASENAME.out, too.
  52case "$GIT_TEST_TEE_STARTED, $* " in
  53done,*)
  54        # do not redirect again
  55        ;;
  56*' --tee '*|*' --va'*)
  57        mkdir -p "$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        ;;
  64esac
  65
  66# For repeatability, reset the environment to known value.
  67LANG=C
  68LC_ALL=C
  69PAGER=cat
  70TZ=UTC
  71TERM=dumb
  72export LANG LC_ALL PAGER TERM TZ
  73EDITOR=:
  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.
  78unset 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')
  94unset XDG_CONFIG_HOME
  95unset GITPERLLIB
  96GIT_AUTHOR_EMAIL=author@example.com
  97GIT_AUTHOR_NAME='A U Thor'
  98GIT_COMMITTER_EMAIL=committer@example.com
  99GIT_COMMITTER_NAME='C O Mitter'
 100GIT_MERGE_VERBOSITY=5
 101GIT_MERGE_AUTOEDIT=no
 102export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 103export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 104export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 105export EDITOR
 106
 107# Add libc MALLOC and MALLOC_PERTURB test
 108# only if we are not executing the test with valgrind
 109if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 110   test -n "$TEST_NO_MALLOC_CHECK"
 111then
 112        setup_malloc_check () {
 113                : nothing
 114        }
 115        teardown_malloc_check () {
 116                : nothing
 117        }
 118else
 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        }
 126fi
 127
 128# Protect ourselves from common misconfiguration to export
 129# CDPATH into the environment
 130unset CDPATH
 131
 132unset GREP_OPTIONS
 133unset UNZIP
 134
 135case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 1361|2|true)
 137        echo "* warning: Some tests will not work if GIT_TRACE" \
 138                "is set as to trace on STDERR ! *"
 139        echo "* warning: Please set GIT_TRACE to something" \
 140                "other than 1, 2 or true ! *"
 141        ;;
 142esac
 143
 144# Convenience
 145#
 146# A regexp to match 5 and 40 hexdigits
 147_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 148_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 149
 150# Zero SHA-1
 151_z40=0000000000000000000000000000000000000000
 152
 153# Line feed
 154LF='
 155'
 156
 157export _x05 _x40 _z40 LF
 158
 159# Each test should start with something like this, after copyright notices:
 160#
 161# test_description='Description of this test...
 162# This test checks if command xyzzy does the right thing...
 163# '
 164# . ./test-lib.sh
 165[ "x$ORIGINAL_TERM" != "xdumb" ] && (
 166                TERM=$ORIGINAL_TERM &&
 167                export TERM &&
 168                [ -t 1 ] &&
 169                tput bold >/dev/null 2>&1 &&
 170                tput setaf 1 >/dev/null 2>&1 &&
 171                tput sgr0 >/dev/null 2>&1
 172        ) &&
 173        color=t
 174
 175while test "$#" -ne 0
 176do
 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 '$1'" >&2; exit 1 ;;
 218        esac
 219done
 220
 221if test -n "$valgrind_only"
 222then
 223        test -z "$valgrind" && valgrind=memcheck
 224        test -z "$verbose" && verbose_only="$valgrind_only"
 225elif test -n "$valgrind"
 226then
 227        verbose=t
 228fi
 229
 230if test -n "$color"
 231then
 232        say_color () {
 233                (
 234                TERM=$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        }
 256else
 257        say_color() {
 258                test -z "$1" && test -n "$quiet" && return
 259                shift
 260                printf "%s\n" "$*"
 261        }
 262fi
 263
 264error () {
 265        say_color error "error: $*"
 266        GIT_EXIT_OK=t
 267        exit 1
 268}
 269
 270say () {
 271        say_color info "$*"
 272}
 273
 274test "${test_description}" != "" ||
 275error "Test script did not set test_description."
 276
 277if test "$help" = "t"
 278then
 279        echo "$test_description"
 280        exit 0
 281fi
 282
 283exec 5>&1
 284exec 6<&0
 285if test "$verbose" = "t"
 286then
 287        exec 4>&2 3>&1
 288else
 289        exec 4>/dev/null 3>/dev/null
 290fi
 291
 292test_failure=0
 293test_count=0
 294test_fixed=0
 295test_broken=0
 296test_success=0
 297
 298test_external_has_tap=0
 299
 300die () {
 301        code=$?
 302        if test -n "$GIT_EXIT_OK"
 303        then
 304                exit $code
 305        else
 306                echo >&5 "FATAL: Unexpected exit with code $code"
 307                exit 1
 308        fi
 309}
 310
 311GIT_EXIT_OK=
 312trap 'die' EXIT
 313
 314# The user-facing functions are loaded from a separate file so that
 315# test_perf subshells can have them too
 316. "$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
 321test_ok_ () {
 322        test_success=$(($test_success + 1))
 323        say_color "" "${statusprefix}ok $test_count - $@"
 324}
 325
 326test_failure_ () {
 327        test_failure=$(($test_failure + 1))
 328        say_color error "${statusprefix}not ok $test_count - $1"
 329        shift
 330        echo "$@" | sed -e 's/^/#       /'
 331        test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 332}
 333
 334test_known_broken_ok_ () {
 335        test_fixed=$(($test_fixed+1))
 336        say_color error "${statusprefix}ok $test_count - $@ # TODO known breakage vanished"
 337}
 338
 339test_known_broken_failure_ () {
 340        test_broken=$(($test_broken+1))
 341        say_color warn "${statusprefix}not ok $test_count - $@ # TODO known breakage"
 342}
 343
 344test_debug () {
 345        test "$debug" = "" || eval "$1"
 346}
 347
 348match_pattern_list () {
 349        arg="$1"
 350        shift
 351        test -z "$*" && return 1
 352        for pattern_
 353        do
 354                case "$arg" in
 355                $pattern_)
 356                        return 0
 357                esac
 358        done
 359        return 1
 360}
 361
 362maybe_teardown_verbose () {
 363        test -z "$verbose_only" && return
 364        exec 4>/dev/null 3>/dev/null
 365        verbose=
 366}
 367
 368last_verbose=t
 369maybe_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=$verbose
 386}
 387
 388maybe_teardown_valgrind () {
 389        test -z "$GIT_VALGRIND" && return
 390        GIT_VALGRIND_ENABLED=
 391}
 392
 393maybe_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 $valgrind_only
 402        then
 403                GIT_VALGRIND_ENABLED=t
 404        fi
 405}
 406
 407test_eval_ () {
 408        # This is a separate function because some tests use
 409        # "return" to end a test_expect_success block early.
 410        eval </dev/null >&3 2>&4 "$*"
 411}
 412
 413test_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
 434test_start_ () {
 435        test_count=$(($test_count+1))
 436        maybe_setup_verbose
 437        maybe_setup_valgrind
 438}
 439
 440test_finish_ () {
 441        echo >&3 ""
 442        maybe_teardown_valgrind
 443        maybe_teardown_verbose
 444}
 445
 446test_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
 476test_at_end_hook_ () {
 477        :
 478}
 479
 480test_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..$test_count"
 549                fi
 550
 551                exit 1 ;;
 552
 553        esac
 554}
 555
 556if test -n "$valgrind"
 557then
 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 "$valgrind_only" && GIT_VALGRIND_ENABLED=
 630        export GIT_VALGRIND_ENABLED
 631elif test -n "$GIT_TEST_INSTALLED"
 632then
 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}
 637else # 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:$PATH"
 652        fi
 653fi
 654GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 655unset GIT_CONFIG
 656GIT_CONFIG_NOSYSTEM=1
 657GIT_ATTR_NOSYSTEM=1
 658export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 659
 660if test -z "$GIT_TEST_CMP"
 661then
 662        if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 663        then
 664                GIT_TEST_CMP="$DIFF -c"
 665        else
 666                GIT_TEST_CMP="$DIFF -u"
 667        fi
 668fi
 669
 670GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 671export GITPERLLIB
 672test -d "$GIT_BUILD_DIR"/templates/blt || {
 673        error "You haven't built things yet, have you?"
 674}
 675
 676if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 677then
 678        GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
 679        export GITPYTHONLIB
 680        test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
 681                error "You haven't built git_remote_helpers yet, have you?"
 682        }
 683fi
 684
 685if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 686then
 687        echo >&2 'You need to build test-chmtime:'
 688        echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 689        exit 1
 690fi
 691
 692# Test repository
 693TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 694test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 695case "$TRASH_DIRECTORY" in
 696/*) ;; # absolute path is good
 697 *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 698esac
 699test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 700rm -fr "$TRASH_DIRECTORY" || {
 701        GIT_EXIT_OK=t
 702        echo >&5 "FATAL: Cannot prepare test area"
 703        exit 1
 704}
 705
 706HOME="$TRASH_DIRECTORY"
 707export HOME
 708
 709if test -z "$TEST_NO_CREATE_REPO"
 710then
 711        test_create_repo "$TRASH_DIRECTORY"
 712else
 713        mkdir -p "$TRASH_DIRECTORY"
 714fi
 715# Use -P to resolve symlinks in our working directory so that the cwd
 716# in subprocesses like git equals our $PWD (for pathname comparisons).
 717cd -P "$TRASH_DIRECTORY" || exit 1
 718
 719this_test=${0##*/}
 720this_test=${this_test%%-*}
 721if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 722then
 723        say_color info >&3 "skipping test $this_test altogether"
 724        skip_all="skip all tests in $this_test"
 725        test_done
 726fi
 727
 728# Provide an implementation of the 'yes' utility
 729yes () {
 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
 744case $(uname -s) in
 745*MINGW*)
 746        # Windows has its own (incompatible) sort and find
 747        sort () {
 748                /usr/bin/sort "$@"
 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        ;;
 783esac
 784
 785( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 786test -z "$NO_PERL" && test_set_prereq PERL
 787test -z "$NO_PYTHON" && test_set_prereq PYTHON
 788test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 789test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 790
 791# Can we rely on git's output in the C locale?
 792if test -n "$GETTEXT_POISON"
 793then
 794        GIT_GETTEXT_POISON=YesPlease
 795        export GIT_GETTEXT_POISON
 796        test_set_prereq GETTEXT_POISON
 797else
 798        test_set_prereq C_LOCALE_OUTPUT
 799fi
 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.
 805test_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.
 814test_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
 827test_lazy_prereq PIPE '
 828        # test whether the filesystem supports FIFOs
 829        case $(uname -s) in
 830        CYGWIN*)
 831                false
 832                ;;
 833        *)
 834                rm -f testfifo && mkfifo testfifo
 835                ;;
 836        esac
 837'
 838
 839test_lazy_prereq SYMLINKS '
 840        # test whether the filesystem supports symbolic links
 841        ln -s x y && test -h y
 842'
 843
 844test_lazy_prereq CASE_INSENSITIVE_FS '
 845        echo good >CamelCase &&
 846        echo bad >camelcase &&
 847        test "$(cat CamelCase)" != good
 848'
 849
 850test_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        "$aumlcdiar")
 857                true ;;
 858        *)
 859                false ;;
 860        esac
 861'
 862
 863test_lazy_prereq AUTOIDENT '
 864        sane_unset GIT_AUTHOR_NAME &&
 865        sane_unset GIT_AUTHOR_EMAIL &&
 866        git var GIT_AUTHOR_IDENT
 867'
 868
 869# When the tests are run as root, permission tests will report that
 870# things are writable when they shouldn't be.
 871test -w / || test_set_prereq SANITY
 872
 873GIT_UNZIP=${GIT_UNZIP:-unzip}
 874test_lazy_prereq UNZIP '
 875        "$GIT_UNZIP" -v
 876        test $? -ne 127
 877'