Andrew's git / gitweb.git / t/test-lib.sh
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t / test-lib.shon commit sha1_file: add for_each iterators for loose and packed objects (660c889)
   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
  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 $ok = join("|", qw(
  85                TRACE
  86                DEBUG
  87                USE_LOOKUP
  88                TEST
  89                .*_TEST
  90                PROVE
  91                VALGRIND
  92                UNZIP
  93                PERF_
  94                CURL_VERBOSE
  95        ));
  96        my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
  97        print join("\n", @vars);
  98')
  99unset XDG_CONFIG_HOME
 100unset GITPERLLIB
 101GIT_AUTHOR_EMAIL=author@example.com
 102GIT_AUTHOR_NAME='A U Thor'
 103GIT_COMMITTER_EMAIL=committer@example.com
 104GIT_COMMITTER_NAME='C O Mitter'
 105GIT_MERGE_VERBOSITY=5
 106GIT_MERGE_AUTOEDIT=no
 107export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 108export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 109export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 110export EDITOR
 111
 112# Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 113GIT_TRACE_BARE=1
 114export GIT_TRACE_BARE
 115
 116if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
 117then
 118        GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
 119        export GIT_INDEX_VERSION
 120fi
 121
 122# Add libc MALLOC and MALLOC_PERTURB test
 123# only if we are not executing the test with valgrind
 124if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 125   test -n "$TEST_NO_MALLOC_CHECK"
 126then
 127        setup_malloc_check () {
 128                : nothing
 129        }
 130        teardown_malloc_check () {
 131                : nothing
 132        }
 133else
 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        }
 141fi
 142
 143# Protect ourselves from common misconfiguration to export
 144# CDPATH into the environment
 145unset CDPATH
 146
 147unset GREP_OPTIONS
 148unset UNZIP
 149
 150case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 1511|2|true)
 152        echo "* warning: Some tests will not work if GIT_TRACE" \
 153                "is set as to trace on STDERR ! *"
 154        echo "* warning: Please set GIT_TRACE to something" \
 155                "other than 1, 2 or true ! *"
 156        ;;
 157esac
 158
 159# Convenience
 160#
 161# A regexp to match 5 and 40 hexdigits
 162_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 163_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 164
 165# Zero SHA-1
 166_z40=0000000000000000000000000000000000000000
 167
 168# Line feed
 169LF='
 170'
 171
 172export _x05 _x40 _z40 LF
 173
 174# Each test should start with something like this, after copyright notices:
 175#
 176# test_description='Description of this test...
 177# This test checks if command xyzzy does the right thing...
 178# '
 179# . ./test-lib.sh
 180[ "x$ORIGINAL_TERM" != "xdumb" ] && (
 181                TERM=$ORIGINAL_TERM &&
 182                export TERM &&
 183                [ -t 1 ] &&
 184                tput bold >/dev/null 2>&1 &&
 185                tput setaf 1 >/dev/null 2>&1 &&
 186                tput sgr0 >/dev/null 2>&1
 187        ) &&
 188        color=t
 189
 190while test "$#" -ne 0
 191do
 192        case "$1" in
 193        -d|--d|--de|--deb|--debu|--debug)
 194                debug=t; shift ;;
 195        -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 196                immediate=t; shift ;;
 197        -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 198                GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 199        -r)
 200                shift; test "$#" -ne 0 || {
 201                        echo 'error: -r requires an argument' >&2;
 202                        exit 1;
 203                }
 204                run_list=$1; shift ;;
 205        --run=*)
 206                run_list=$(expr "z$1" : 'z[^=]*=\(.*\)'); shift ;;
 207        -h|--h|--he|--hel|--help)
 208                help=t; shift ;;
 209        -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 210                verbose=t; shift ;;
 211        --verbose-only=*)
 212                verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 213                shift ;;
 214        -q|--q|--qu|--qui|--quie|--quiet)
 215                # Ignore --quiet under a TAP::Harness. Saying how many tests
 216                # passed without the ok/not ok details is always an error.
 217                test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 218        --with-dashes)
 219                with_dashes=t; shift ;;
 220        --no-color)
 221                color=; shift ;;
 222        --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 223                valgrind=memcheck
 224                shift ;;
 225        --valgrind=*)
 226                valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 227                shift ;;
 228        --valgrind-only=*)
 229                valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 230                shift ;;
 231        --tee)
 232                shift ;; # was handled already
 233        --root=*)
 234                root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 235                shift ;;
 236        -x)
 237                trace=t
 238                verbose=t
 239                shift ;;
 240        *)
 241                echo "error: unknown test option '$1'" >&2; exit 1 ;;
 242        esac
 243done
 244
 245if test -n "$valgrind_only"
 246then
 247        test -z "$valgrind" && valgrind=memcheck
 248        test -z "$verbose" && verbose_only="$valgrind_only"
 249elif test -n "$valgrind"
 250then
 251        verbose=t
 252fi
 253
 254if test -n "$color"
 255then
 256        say_color () {
 257                (
 258                TERM=$ORIGINAL_TERM
 259                export TERM
 260                case "$1" in
 261                error)
 262                        tput bold; tput setaf 1;; # bold red
 263                skip)
 264                        tput setaf 4;; # blue
 265                warn)
 266                        tput setaf 3;; # brown/yellow
 267                pass)
 268                        tput setaf 2;; # green
 269                info)
 270                        tput setaf 6;; # cyan
 271                *)
 272                        test -n "$quiet" && return;;
 273                esac
 274                shift
 275                printf "%s" "$*"
 276                tput sgr0
 277                echo
 278                )
 279        }
 280else
 281        say_color() {
 282                test -z "$1" && test -n "$quiet" && return
 283                shift
 284                printf "%s\n" "$*"
 285        }
 286fi
 287
 288error () {
 289        say_color error "error: $*"
 290        GIT_EXIT_OK=t
 291        exit 1
 292}
 293
 294say () {
 295        say_color info "$*"
 296}
 297
 298test "${test_description}" != "" ||
 299error "Test script did not set test_description."
 300
 301if test "$help" = "t"
 302then
 303        printf '%s\n' "$test_description"
 304        exit 0
 305fi
 306
 307exec 5>&1
 308exec 6<&0
 309if test "$verbose" = "t"
 310then
 311        exec 4>&2 3>&1
 312else
 313        exec 4>/dev/null 3>/dev/null
 314fi
 315
 316test_failure=0
 317test_count=0
 318test_fixed=0
 319test_broken=0
 320test_success=0
 321
 322test_external_has_tap=0
 323
 324die () {
 325        code=$?
 326        if test -n "$GIT_EXIT_OK"
 327        then
 328                exit $code
 329        else
 330                echo >&5 "FATAL: Unexpected exit with code $code"
 331                exit 1
 332        fi
 333}
 334
 335GIT_EXIT_OK=
 336trap 'die' EXIT
 337
 338# The user-facing functions are loaded from a separate file so that
 339# test_perf subshells can have them too
 340. "$TEST_DIRECTORY/test-lib-functions.sh"
 341
 342# You are not expected to call test_ok_ and test_failure_ directly, use
 343# the test_expect_* functions instead.
 344
 345test_ok_ () {
 346        test_success=$(($test_success + 1))
 347        say_color "" "ok $test_count - $@"
 348}
 349
 350test_failure_ () {
 351        test_failure=$(($test_failure + 1))
 352        say_color error "not ok $test_count - $1"
 353        shift
 354        printf '%s\n' "$*" | sed -e 's/^/#      /'
 355        test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 356}
 357
 358test_known_broken_ok_ () {
 359        test_fixed=$(($test_fixed+1))
 360        say_color error "ok $test_count - $@ # TODO known breakage vanished"
 361}
 362
 363test_known_broken_failure_ () {
 364        test_broken=$(($test_broken+1))
 365        say_color warn "not ok $test_count - $@ # TODO known breakage"
 366}
 367
 368test_debug () {
 369        test "$debug" = "" || eval "$1"
 370}
 371
 372match_pattern_list () {
 373        arg="$1"
 374        shift
 375        test -z "$*" && return 1
 376        for pattern_
 377        do
 378                case "$arg" in
 379                $pattern_)
 380                        return 0
 381                esac
 382        done
 383        return 1
 384}
 385
 386match_test_selector_list () {
 387        title="$1"
 388        shift
 389        arg="$1"
 390        shift
 391        test -z "$1" && return 0
 392
 393        # Both commas and whitespace are accepted as separators.
 394        OLDIFS=$IFS
 395        IFS='   ,'
 396        set -- $1
 397        IFS=$OLDIFS
 398
 399        # If the first selector is negative we include by default.
 400        include=
 401        case "$1" in
 402                !*) include=t ;;
 403        esac
 404
 405        for selector
 406        do
 407                orig_selector=$selector
 408
 409                positive=t
 410                case "$selector" in
 411                        !*)
 412                                positive=
 413                                selector=${selector##?}
 414                                ;;
 415                esac
 416
 417                test -z "$selector" && continue
 418
 419                case "$selector" in
 420                        *-*)
 421                                if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 422                                then
 423                                        echo "error: $title: invalid non-numeric in range" \
 424                                                "start: '$orig_selector'" >&2
 425                                        exit 1
 426                                fi
 427                                if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 428                                then
 429                                        echo "error: $title: invalid non-numeric in range" \
 430                                                "end: '$orig_selector'" >&2
 431                                        exit 1
 432                                fi
 433                                ;;
 434                        *)
 435                                if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 436                                then
 437                                        echo "error: $title: invalid non-numeric in test" \
 438                                                "selector: '$orig_selector'" >&2
 439                                        exit 1
 440                                fi
 441                esac
 442
 443                # Short cut for "obvious" cases
 444                test -z "$include" && test -z "$positive" && continue
 445                test -n "$include" && test -n "$positive" && continue
 446
 447                case "$selector" in
 448                        -*)
 449                                if test $arg -le ${selector#-}
 450                                then
 451                                        include=$positive
 452                                fi
 453                                ;;
 454                        *-)
 455                                if test $arg -ge ${selector%-}
 456                                then
 457                                        include=$positive
 458                                fi
 459                                ;;
 460                        *-*)
 461                                if test ${selector%%-*} -le $arg \
 462                                        && test $arg -le ${selector#*-}
 463                                then
 464                                        include=$positive
 465                                fi
 466                                ;;
 467                        *)
 468                                if test $arg -eq $selector
 469                                then
 470                                        include=$positive
 471                                fi
 472                                ;;
 473                esac
 474        done
 475
 476        test -n "$include"
 477}
 478
 479maybe_teardown_verbose () {
 480        test -z "$verbose_only" && return
 481        exec 4>/dev/null 3>/dev/null
 482        verbose=
 483}
 484
 485last_verbose=t
 486maybe_setup_verbose () {
 487        test -z "$verbose_only" && return
 488        if match_pattern_list $test_count $verbose_only
 489        then
 490                exec 4>&2 3>&1
 491                # Emit a delimiting blank line when going from
 492                # non-verbose to verbose.  Within verbose mode the
 493                # delimiter is printed by test_expect_*.  The choice
 494                # of the initial $last_verbose is such that before
 495                # test 1, we do not print it.
 496                test -z "$last_verbose" && echo >&3 ""
 497                verbose=t
 498        else
 499                exec 4>/dev/null 3>/dev/null
 500                verbose=
 501        fi
 502        last_verbose=$verbose
 503}
 504
 505maybe_teardown_valgrind () {
 506        test -z "$GIT_VALGRIND" && return
 507        GIT_VALGRIND_ENABLED=
 508}
 509
 510maybe_setup_valgrind () {
 511        test -z "$GIT_VALGRIND" && return
 512        if test -z "$valgrind_only"
 513        then
 514                GIT_VALGRIND_ENABLED=t
 515                return
 516        fi
 517        GIT_VALGRIND_ENABLED=
 518        if match_pattern_list $test_count $valgrind_only
 519        then
 520                GIT_VALGRIND_ENABLED=t
 521        fi
 522}
 523
 524# This is a separate function because some tests use
 525# "return" to end a test_expect_success block early
 526# (and we want to make sure we run any cleanup like
 527# "set +x").
 528test_eval_inner_ () {
 529        # Do not add anything extra (including LF) after '$*'
 530        eval "
 531                test \"$trace\" = t && set -x
 532                $*"
 533}
 534
 535test_eval_ () {
 536        # We run this block with stderr redirected to avoid extra cruft
 537        # during a "-x" trace. Once in "set -x" mode, we cannot prevent
 538        # the shell from printing the "set +x" to turn it off (nor the saving
 539        # of $? before that). But we can make sure that the output goes to
 540        # /dev/null.
 541        #
 542        # The test itself is run with stderr put back to &4 (so either to
 543        # /dev/null, or to the original stderr if --verbose was used).
 544        {
 545                test_eval_inner_ "$@" </dev/null >&3 2>&4
 546                test_eval_ret_=$?
 547                if test "$trace" = t
 548                then
 549                        set +x
 550                        if test "$test_eval_ret_" != 0
 551                        then
 552                                say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 553                        fi
 554                fi
 555        } 2>/dev/null
 556        return $test_eval_ret_
 557}
 558
 559test_run_ () {
 560        test_cleanup=:
 561        expecting_failure=$2
 562        setup_malloc_check
 563        test_eval_ "$1"
 564        eval_ret=$?
 565        teardown_malloc_check
 566
 567        if test -z "$immediate" || test $eval_ret = 0 ||
 568           test -n "$expecting_failure" && test "$test_cleanup" != ":"
 569        then
 570                setup_malloc_check
 571                test_eval_ "$test_cleanup"
 572                teardown_malloc_check
 573        fi
 574        if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 575        then
 576                echo ""
 577        fi
 578        return "$eval_ret"
 579}
 580
 581test_start_ () {
 582        test_count=$(($test_count+1))
 583        maybe_setup_verbose
 584        maybe_setup_valgrind
 585}
 586
 587test_finish_ () {
 588        echo >&3 ""
 589        maybe_teardown_valgrind
 590        maybe_teardown_verbose
 591}
 592
 593test_skip () {
 594        to_skip=
 595        skipped_reason=
 596        if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 597        then
 598                to_skip=t
 599                skipped_reason="GIT_SKIP_TESTS"
 600        fi
 601        if test -z "$to_skip" && test -n "$test_prereq" &&
 602           ! test_have_prereq "$test_prereq"
 603        then
 604                to_skip=t
 605
 606                of_prereq=
 607                if test "$missing_prereq" != "$test_prereq"
 608                then
 609                        of_prereq=" of $test_prereq"
 610                fi
 611                skipped_reason="missing $missing_prereq${of_prereq}"
 612        fi
 613        if test -z "$to_skip" && test -n "$run_list" &&
 614                ! match_test_selector_list '--run' $test_count "$run_list"
 615        then
 616                to_skip=t
 617                skipped_reason="--run"
 618        fi
 619
 620        case "$to_skip" in
 621        t)
 622                say_color skip >&3 "skipping test: $@"
 623                say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 624                : true
 625                ;;
 626        *)
 627                false
 628                ;;
 629        esac
 630}
 631
 632# stub; perf-lib overrides it
 633test_at_end_hook_ () {
 634        :
 635}
 636
 637test_done () {
 638        GIT_EXIT_OK=t
 639
 640        if test -z "$HARNESS_ACTIVE"
 641        then
 642                test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 643                mkdir -p "$test_results_dir"
 644                base=${0##*/}
 645                test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 646
 647                cat >>"$test_results_path" <<-EOF
 648                total $test_count
 649                success $test_success
 650                fixed $test_fixed
 651                broken $test_broken
 652                failed $test_failure
 653
 654                EOF
 655        fi
 656
 657        if test "$test_fixed" != 0
 658        then
 659                say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 660        fi
 661        if test "$test_broken" != 0
 662        then
 663                say_color warn "# still have $test_broken known breakage(s)"
 664        fi
 665        if test "$test_broken" != 0 || test "$test_fixed" != 0
 666        then
 667                test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 668                msg="remaining $test_remaining test(s)"
 669        else
 670                test_remaining=$test_count
 671                msg="$test_count test(s)"
 672        fi
 673        case "$test_failure" in
 674        0)
 675                # Maybe print SKIP message
 676                if test -n "$skip_all" && test $test_count -gt 0
 677                then
 678                        error "Can't use skip_all after running some tests"
 679                fi
 680                [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 681
 682                if test $test_external_has_tap -eq 0
 683                then
 684                        if test $test_remaining -gt 0
 685                        then
 686                                say_color pass "# passed all $msg"
 687                        fi
 688                        say "1..$test_count$skip_all"
 689                fi
 690
 691                test -d "$remove_trash" &&
 692                cd "$(dirname "$remove_trash")" &&
 693                rm -rf "$(basename "$remove_trash")"
 694
 695                test_at_end_hook_
 696
 697                exit 0 ;;
 698
 699        *)
 700                if test $test_external_has_tap -eq 0
 701                then
 702                        say_color error "# failed $test_failure among $msg"
 703                        say "1..$test_count"
 704                fi
 705
 706                exit 1 ;;
 707
 708        esac
 709}
 710
 711if test -n "$valgrind"
 712then
 713        make_symlink () {
 714                test -h "$2" &&
 715                test "$1" = "$(readlink "$2")" || {
 716                        # be super paranoid
 717                        if mkdir "$2".lock
 718                        then
 719                                rm -f "$2" &&
 720                                ln -s "$1" "$2" &&
 721                                rm -r "$2".lock
 722                        else
 723                                while test -d "$2".lock
 724                                do
 725                                        say "Waiting for lock on $2."
 726                                        sleep 1
 727                                done
 728                        fi
 729                }
 730        }
 731
 732        make_valgrind_symlink () {
 733                # handle only executables, unless they are shell libraries that
 734                # need to be in the exec-path.
 735                test -x "$1" ||
 736                test "# " = "$(head -c 2 <"$1")" ||
 737                return;
 738
 739                base=$(basename "$1")
 740                symlink_target=$GIT_BUILD_DIR/$base
 741                # do not override scripts
 742                if test -x "$symlink_target" &&
 743                    test ! -d "$symlink_target" &&
 744                    test "#!" != "$(head -c 2 < "$symlink_target")"
 745                then
 746                        symlink_target=../valgrind.sh
 747                fi
 748                case "$base" in
 749                *.sh|*.perl)
 750                        symlink_target=../unprocessed-script
 751                esac
 752                # create the link, or replace it if it is out of date
 753                make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 754        }
 755
 756        # override all git executables in TEST_DIRECTORY/..
 757        GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 758        mkdir -p "$GIT_VALGRIND"/bin
 759        for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 760        do
 761                make_valgrind_symlink $file
 762        done
 763        # special-case the mergetools loadables
 764        make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 765        OLDIFS=$IFS
 766        IFS=:
 767        for path in $PATH
 768        do
 769                ls "$path"/git-* 2> /dev/null |
 770                while read file
 771                do
 772                        make_valgrind_symlink "$file"
 773                done
 774        done
 775        IFS=$OLDIFS
 776        PATH=$GIT_VALGRIND/bin:$PATH
 777        GIT_EXEC_PATH=$GIT_VALGRIND/bin
 778        export GIT_VALGRIND
 779        GIT_VALGRIND_MODE="$valgrind"
 780        export GIT_VALGRIND_MODE
 781        GIT_VALGRIND_ENABLED=t
 782        test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 783        export GIT_VALGRIND_ENABLED
 784elif test -n "$GIT_TEST_INSTALLED"
 785then
 786        GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 787        error "Cannot run git from $GIT_TEST_INSTALLED."
 788        PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 789        GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 790else # normal case, use ../bin-wrappers only unless $with_dashes:
 791        git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 792        if ! test -x "$git_bin_dir/git"
 793        then
 794                if test -z "$with_dashes"
 795                then
 796                        say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 797                fi
 798                with_dashes=t
 799        fi
 800        PATH="$git_bin_dir:$PATH"
 801        GIT_EXEC_PATH=$GIT_BUILD_DIR
 802        if test -n "$with_dashes"
 803        then
 804                PATH="$GIT_BUILD_DIR:$PATH"
 805        fi
 806fi
 807GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 808GIT_CONFIG_NOSYSTEM=1
 809GIT_ATTR_NOSYSTEM=1
 810export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 811
 812if test -z "$GIT_TEST_CMP"
 813then
 814        if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 815        then
 816                GIT_TEST_CMP="$DIFF -c"
 817        else
 818                GIT_TEST_CMP="$DIFF -u"
 819        fi
 820fi
 821
 822GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 823export GITPERLLIB
 824test -d "$GIT_BUILD_DIR"/templates/blt || {
 825        error "You haven't built things yet, have you?"
 826}
 827
 828if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 829then
 830        echo >&2 'You need to build test-chmtime:'
 831        echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 832        exit 1
 833fi
 834
 835# Test repository
 836TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 837test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 838case "$TRASH_DIRECTORY" in
 839/*) ;; # absolute path is good
 840 *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 841esac
 842test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 843rm -fr "$TRASH_DIRECTORY" || {
 844        GIT_EXIT_OK=t
 845        echo >&5 "FATAL: Cannot prepare test area"
 846        exit 1
 847}
 848
 849HOME="$TRASH_DIRECTORY"
 850GNUPGHOME="$HOME/gnupg-home-not-used"
 851export HOME GNUPGHOME
 852
 853if test -z "$TEST_NO_CREATE_REPO"
 854then
 855        test_create_repo "$TRASH_DIRECTORY"
 856else
 857        mkdir -p "$TRASH_DIRECTORY"
 858fi
 859# Use -P to resolve symlinks in our working directory so that the cwd
 860# in subprocesses like git equals our $PWD (for pathname comparisons).
 861cd -P "$TRASH_DIRECTORY" || exit 1
 862
 863this_test=${0##*/}
 864this_test=${this_test%%-*}
 865if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 866then
 867        say_color info >&3 "skipping test $this_test altogether"
 868        skip_all="skip all tests in $this_test"
 869        test_done
 870fi
 871
 872# Provide an implementation of the 'yes' utility
 873yes () {
 874        if test $# = 0
 875        then
 876                y=y
 877        else
 878                y="$*"
 879        fi
 880
 881        while echo "$y"
 882        do
 883                :
 884        done
 885}
 886
 887# Fix some commands on Windows
 888case $(uname -s) in
 889*MINGW*)
 890        # Windows has its own (incompatible) sort and find
 891        sort () {
 892                /usr/bin/sort "$@"
 893        }
 894        find () {
 895                /usr/bin/find "$@"
 896        }
 897        sum () {
 898                md5sum "$@"
 899        }
 900        # git sees Windows-style pwd
 901        pwd () {
 902                builtin pwd -W
 903        }
 904        # no POSIX permissions
 905        # backslashes in pathspec are converted to '/'
 906        # exec does not inherit the PID
 907        test_set_prereq MINGW
 908        test_set_prereq NATIVE_CRLF
 909        test_set_prereq SED_STRIPS_CR
 910        test_set_prereq GREP_STRIPS_CR
 911        GIT_TEST_CMP=mingw_test_cmp
 912        ;;
 913*CYGWIN*)
 914        test_set_prereq POSIXPERM
 915        test_set_prereq EXECKEEPSPID
 916        test_set_prereq CYGWIN
 917        test_set_prereq SED_STRIPS_CR
 918        test_set_prereq GREP_STRIPS_CR
 919        ;;
 920*)
 921        test_set_prereq POSIXPERM
 922        test_set_prereq BSLASHPSPEC
 923        test_set_prereq EXECKEEPSPID
 924        ;;
 925esac
 926
 927( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 928test -z "$NO_PERL" && test_set_prereq PERL
 929test -z "$NO_PYTHON" && test_set_prereq PYTHON
 930test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 931test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 932
 933# Can we rely on git's output in the C locale?
 934if test -n "$GETTEXT_POISON"
 935then
 936        GIT_GETTEXT_POISON=YesPlease
 937        export GIT_GETTEXT_POISON
 938        test_set_prereq GETTEXT_POISON
 939else
 940        test_set_prereq C_LOCALE_OUTPUT
 941fi
 942
 943# Use this instead of test_cmp to compare files that contain expected and
 944# actual output from git commands that can be translated.  When running
 945# under GETTEXT_POISON this pretends that the command produced expected
 946# results.
 947test_i18ncmp () {
 948        test -n "$GETTEXT_POISON" || test_cmp "$@"
 949}
 950
 951# Use this instead of "grep expected-string actual" to see if the
 952# output from a git command that can be translated either contains an
 953# expected string, or does not contain an unwanted one.  When running
 954# under GETTEXT_POISON this pretends that the command produced expected
 955# results.
 956test_i18ngrep () {
 957        if test -n "$GETTEXT_POISON"
 958        then
 959            : # pretend success
 960        elif test "x!" = "x$1"
 961        then
 962                shift
 963                ! grep "$@"
 964        else
 965                grep "$@"
 966        fi
 967}
 968
 969test_lazy_prereq PIPE '
 970        # test whether the filesystem supports FIFOs
 971        case $(uname -s) in
 972        CYGWIN*)
 973                false
 974                ;;
 975        *)
 976                rm -f testfifo && mkfifo testfifo
 977                ;;
 978        esac
 979'
 980
 981test_lazy_prereq SYMLINKS '
 982        # test whether the filesystem supports symbolic links
 983        ln -s x y && test -h y
 984'
 985
 986test_lazy_prereq FILEMODE '
 987        test "$(git config --bool core.filemode)" = true
 988'
 989
 990test_lazy_prereq CASE_INSENSITIVE_FS '
 991        echo good >CamelCase &&
 992        echo bad >camelcase &&
 993        test "$(cat CamelCase)" != good
 994'
 995
 996test_lazy_prereq UTF8_NFD_TO_NFC '
 997        # check whether FS converts nfd unicode to nfc
 998        auml=$(printf "\303\244")
 999        aumlcdiar=$(printf "\141\314\210")
1000        >"$auml" &&
1001        case "$(echo *)" in
1002        "$aumlcdiar")
1003                true ;;
1004        *)
1005                false ;;
1006        esac
1007'
1008
1009test_lazy_prereq AUTOIDENT '
1010        sane_unset GIT_AUTHOR_NAME &&
1011        sane_unset GIT_AUTHOR_EMAIL &&
1012        git var GIT_AUTHOR_IDENT
1013'
1014
1015test_lazy_prereq EXPENSIVE '
1016        test -n "$GIT_TEST_LONG"
1017'
1018
1019test_lazy_prereq USR_BIN_TIME '
1020        test -x /usr/bin/time
1021'
1022
1023# When the tests are run as root, permission tests will report that
1024# things are writable when they shouldn't be.
1025test -w / || test_set_prereq SANITY
1026
1027GIT_UNZIP=${GIT_UNZIP:-unzip}
1028test_lazy_prereq UNZIP '
1029        "$GIT_UNZIP" -v
1030        test $? -ne 127
1031'