t / test-lib.shon commit t: fix &&-chaining issues around setup which might fail (a6a4a88)
   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: ${ASAN_OPTIONS=detect_leaks=0}
 144export ASAN_OPTIONS
 145
 146# Protect ourselves from common misconfiguration to export
 147# CDPATH into the environment
 148unset CDPATH
 149
 150unset GREP_OPTIONS
 151unset UNZIP
 152
 153case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 1541|2|true)
 155        echo "* warning: Some tests will not work if GIT_TRACE" \
 156                "is set as to trace on STDERR ! *"
 157        echo "* warning: Please set GIT_TRACE to something" \
 158                "other than 1, 2 or true ! *"
 159        ;;
 160esac
 161
 162# Convenience
 163#
 164# A regexp to match 5 and 40 hexdigits
 165_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 166_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 167
 168# Zero SHA-1
 169_z40=0000000000000000000000000000000000000000
 170
 171# Line feed
 172LF='
 173'
 174
 175# UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 176# when case-folding filenames
 177u200c=$(printf '\342\200\214')
 178
 179export _x05 _x40 _z40 LF u200c
 180
 181# Each test should start with something like this, after copyright notices:
 182#
 183# test_description='Description of this test...
 184# This test checks if command xyzzy does the right thing...
 185# '
 186# . ./test-lib.sh
 187
 188unset color
 189while test "$#" -ne 0
 190do
 191        case "$1" in
 192        -d|--d|--de|--deb|--debu|--debug)
 193                debug=t; shift ;;
 194        -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 195                immediate=t; shift ;;
 196        -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 197                GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 198        -r)
 199                shift; test "$#" -ne 0 || {
 200                        echo 'error: -r requires an argument' >&2;
 201                        exit 1;
 202                }
 203                run_list=$1; shift ;;
 204        --run=*)
 205                run_list=$(expr "z$1" : 'z[^=]*=\(.*\)'); shift ;;
 206        -h|--h|--he|--hel|--help)
 207                help=t; shift ;;
 208        -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 209                verbose=t; shift ;;
 210        --verbose-only=*)
 211                verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 212                shift ;;
 213        -q|--q|--qu|--qui|--quie|--quiet)
 214                # Ignore --quiet under a TAP::Harness. Saying how many tests
 215                # passed without the ok/not ok details is always an error.
 216                test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 217        --with-dashes)
 218                with_dashes=t; shift ;;
 219        --no-color)
 220                color=; shift ;;
 221        --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 222                valgrind=memcheck
 223                shift ;;
 224        --valgrind=*)
 225                valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 226                shift ;;
 227        --valgrind-only=*)
 228                valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 229                shift ;;
 230        --tee)
 231                shift ;; # was handled already
 232        --root=*)
 233                root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 234                shift ;;
 235        --chain-lint)
 236                GIT_TEST_CHAIN_LINT=1
 237                shift ;;
 238        --no-chain-lint)
 239                GIT_TEST_CHAIN_LINT=0
 240                shift ;;
 241        -x)
 242                trace=t
 243                verbose=t
 244                shift ;;
 245        *)
 246                echo "error: unknown test option '$1'" >&2; exit 1 ;;
 247        esac
 248done
 249
 250if test -n "$valgrind_only"
 251then
 252        test -z "$valgrind" && valgrind=memcheck
 253        test -z "$verbose" && verbose_only="$valgrind_only"
 254elif test -n "$valgrind"
 255then
 256        verbose=t
 257fi
 258
 259error () {
 260        say_color error "error: $*"
 261        GIT_EXIT_OK=t
 262        exit 1
 263}
 264
 265say () {
 266        say_color info "$*"
 267}
 268
 269test "${test_description}" != "" ||
 270error "Test script did not set test_description."
 271
 272if test "$help" = "t"
 273then
 274        printf '%s\n' "$test_description"
 275        exit 0
 276fi
 277
 278exec 5>&1
 279exec 6<&0
 280if test "$verbose" = "t"
 281then
 282        exec 4>&2 3>&1
 283else
 284        exec 4>/dev/null 3>/dev/null
 285fi
 286
 287test_failure=0
 288test_count=0
 289test_fixed=0
 290test_broken=0
 291test_success=0
 292
 293test_external_has_tap=0
 294
 295die () {
 296        code=$?
 297        if test -n "$GIT_EXIT_OK"
 298        then
 299                exit $code
 300        else
 301                echo >&5 "FATAL: Unexpected exit with code $code"
 302                exit 1
 303        fi
 304}
 305
 306GIT_EXIT_OK=
 307trap 'die' EXIT
 308
 309# The user-facing functions are loaded from a separate file so that
 310# test_perf subshells can have them too
 311. "$TEST_DIRECTORY/test-lib-functions.sh"
 312
 313# You are not expected to call test_ok_ and test_failure_ directly, use
 314# the test_expect_* functions instead.
 315
 316test_ok_ () {
 317        test_success=$(($test_success + 1))
 318        say_color "" "ok $test_count - $@"
 319}
 320
 321test_failure_ () {
 322        test_failure=$(($test_failure + 1))
 323        say_color error "not ok $test_count - $1"
 324        shift
 325        printf '%s\n' "$*" | sed -e 's/^/#      /'
 326        test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 327}
 328
 329test_known_broken_ok_ () {
 330        test_fixed=$(($test_fixed+1))
 331        say_color error "ok $test_count - $@ # TODO known breakage vanished"
 332}
 333
 334test_known_broken_failure_ () {
 335        test_broken=$(($test_broken+1))
 336        say_color warn "not ok $test_count - $@ # TODO known breakage"
 337}
 338
 339test_debug () {
 340        test "$debug" = "" || eval "$1"
 341}
 342
 343match_pattern_list () {
 344        arg="$1"
 345        shift
 346        test -z "$*" && return 1
 347        for pattern_
 348        do
 349                case "$arg" in
 350                $pattern_)
 351                        return 0
 352                esac
 353        done
 354        return 1
 355}
 356
 357match_test_selector_list () {
 358        title="$1"
 359        shift
 360        arg="$1"
 361        shift
 362        test -z "$1" && return 0
 363
 364        # Both commas and whitespace are accepted as separators.
 365        OLDIFS=$IFS
 366        IFS='   ,'
 367        set -- $1
 368        IFS=$OLDIFS
 369
 370        # If the first selector is negative we include by default.
 371        include=
 372        case "$1" in
 373                !*) include=t ;;
 374        esac
 375
 376        for selector
 377        do
 378                orig_selector=$selector
 379
 380                positive=t
 381                case "$selector" in
 382                        !*)
 383                                positive=
 384                                selector=${selector##?}
 385                                ;;
 386                esac
 387
 388                test -z "$selector" && continue
 389
 390                case "$selector" in
 391                        *-*)
 392                                if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 393                                then
 394                                        echo "error: $title: invalid non-numeric in range" \
 395                                                "start: '$orig_selector'" >&2
 396                                        exit 1
 397                                fi
 398                                if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 399                                then
 400                                        echo "error: $title: invalid non-numeric in range" \
 401                                                "end: '$orig_selector'" >&2
 402                                        exit 1
 403                                fi
 404                                ;;
 405                        *)
 406                                if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 407                                then
 408                                        echo "error: $title: invalid non-numeric in test" \
 409                                                "selector: '$orig_selector'" >&2
 410                                        exit 1
 411                                fi
 412                esac
 413
 414                # Short cut for "obvious" cases
 415                test -z "$include" && test -z "$positive" && continue
 416                test -n "$include" && test -n "$positive" && continue
 417
 418                case "$selector" in
 419                        -*)
 420                                if test $arg -le ${selector#-}
 421                                then
 422                                        include=$positive
 423                                fi
 424                                ;;
 425                        *-)
 426                                if test $arg -ge ${selector%-}
 427                                then
 428                                        include=$positive
 429                                fi
 430                                ;;
 431                        *-*)
 432                                if test ${selector%%-*} -le $arg \
 433                                        && test $arg -le ${selector#*-}
 434                                then
 435                                        include=$positive
 436                                fi
 437                                ;;
 438                        *)
 439                                if test $arg -eq $selector
 440                                then
 441                                        include=$positive
 442                                fi
 443                                ;;
 444                esac
 445        done
 446
 447        test -n "$include"
 448}
 449
 450maybe_teardown_verbose () {
 451        test -z "$verbose_only" && return
 452        exec 4>/dev/null 3>/dev/null
 453        verbose=
 454}
 455
 456last_verbose=t
 457maybe_setup_verbose () {
 458        test -z "$verbose_only" && return
 459        if match_pattern_list $test_count $verbose_only
 460        then
 461                exec 4>&2 3>&1
 462                # Emit a delimiting blank line when going from
 463                # non-verbose to verbose.  Within verbose mode the
 464                # delimiter is printed by test_expect_*.  The choice
 465                # of the initial $last_verbose is such that before
 466                # test 1, we do not print it.
 467                test -z "$last_verbose" && echo >&3 ""
 468                verbose=t
 469        else
 470                exec 4>/dev/null 3>/dev/null
 471                verbose=
 472        fi
 473        last_verbose=$verbose
 474}
 475
 476maybe_teardown_valgrind () {
 477        test -z "$GIT_VALGRIND" && return
 478        GIT_VALGRIND_ENABLED=
 479}
 480
 481maybe_setup_valgrind () {
 482        test -z "$GIT_VALGRIND" && return
 483        if test -z "$valgrind_only"
 484        then
 485                GIT_VALGRIND_ENABLED=t
 486                return
 487        fi
 488        GIT_VALGRIND_ENABLED=
 489        if match_pattern_list $test_count $valgrind_only
 490        then
 491                GIT_VALGRIND_ENABLED=t
 492        fi
 493}
 494
 495# This is a separate function because some tests use
 496# "return" to end a test_expect_success block early
 497# (and we want to make sure we run any cleanup like
 498# "set +x").
 499test_eval_inner_ () {
 500        # Do not add anything extra (including LF) after '$*'
 501        eval "
 502                test \"$trace\" = t && set -x
 503                $*"
 504}
 505
 506test_eval_ () {
 507        # We run this block with stderr redirected to avoid extra cruft
 508        # during a "-x" trace. Once in "set -x" mode, we cannot prevent
 509        # the shell from printing the "set +x" to turn it off (nor the saving
 510        # of $? before that). But we can make sure that the output goes to
 511        # /dev/null.
 512        #
 513        # The test itself is run with stderr put back to &4 (so either to
 514        # /dev/null, or to the original stderr if --verbose was used).
 515        {
 516                test_eval_inner_ "$@" </dev/null >&3 2>&4
 517                test_eval_ret_=$?
 518                if test "$trace" = t
 519                then
 520                        set +x
 521                        if test "$test_eval_ret_" != 0
 522                        then
 523                                say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 524                        fi
 525                fi
 526        } 2>/dev/null
 527        return $test_eval_ret_
 528}
 529
 530test_run_ () {
 531        test_cleanup=:
 532        expecting_failure=$2
 533
 534        if test "${GIT_TEST_CHAIN_LINT:-0}" != 0; then
 535                # 117 is magic because it is unlikely to match the exit
 536                # code of other programs
 537                test_eval_ "(exit 117) && $1"
 538                if test "$?" != 117; then
 539                        error "bug in the test script: broken &&-chain: $1"
 540                fi
 541        fi
 542
 543        setup_malloc_check
 544        test_eval_ "$1"
 545        eval_ret=$?
 546        teardown_malloc_check
 547
 548        if test -z "$immediate" || test $eval_ret = 0 ||
 549           test -n "$expecting_failure" && test "$test_cleanup" != ":"
 550        then
 551                setup_malloc_check
 552                test_eval_ "$test_cleanup"
 553                teardown_malloc_check
 554        fi
 555        if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 556        then
 557                echo ""
 558        fi
 559        return "$eval_ret"
 560}
 561
 562test_start_ () {
 563        test_count=$(($test_count+1))
 564        maybe_setup_verbose
 565        maybe_setup_valgrind
 566}
 567
 568test_finish_ () {
 569        echo >&3 ""
 570        maybe_teardown_valgrind
 571        maybe_teardown_verbose
 572}
 573
 574test_skip () {
 575        to_skip=
 576        skipped_reason=
 577        if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 578        then
 579                to_skip=t
 580                skipped_reason="GIT_SKIP_TESTS"
 581        fi
 582        if test -z "$to_skip" && test -n "$test_prereq" &&
 583           ! test_have_prereq "$test_prereq"
 584        then
 585                to_skip=t
 586
 587                of_prereq=
 588                if test "$missing_prereq" != "$test_prereq"
 589                then
 590                        of_prereq=" of $test_prereq"
 591                fi
 592                skipped_reason="missing $missing_prereq${of_prereq}"
 593        fi
 594        if test -z "$to_skip" && test -n "$run_list" &&
 595                ! match_test_selector_list '--run' $test_count "$run_list"
 596        then
 597                to_skip=t
 598                skipped_reason="--run"
 599        fi
 600
 601        case "$to_skip" in
 602        t)
 603                say_color skip >&3 "skipping test: $@"
 604                say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 605                : true
 606                ;;
 607        *)
 608                false
 609                ;;
 610        esac
 611}
 612
 613# stub; perf-lib overrides it
 614test_at_end_hook_ () {
 615        :
 616}
 617
 618test_done () {
 619        GIT_EXIT_OK=t
 620
 621        if test -z "$HARNESS_ACTIVE"
 622        then
 623                test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 624                mkdir -p "$test_results_dir"
 625                base=${0##*/}
 626                test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 627
 628                cat >>"$test_results_path" <<-EOF
 629                total $test_count
 630                success $test_success
 631                fixed $test_fixed
 632                broken $test_broken
 633                failed $test_failure
 634
 635                EOF
 636        fi
 637
 638        if test "$test_fixed" != 0
 639        then
 640                say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 641        fi
 642        if test "$test_broken" != 0
 643        then
 644                say_color warn "# still have $test_broken known breakage(s)"
 645        fi
 646        if test "$test_broken" != 0 || test "$test_fixed" != 0
 647        then
 648                test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 649                msg="remaining $test_remaining test(s)"
 650        else
 651                test_remaining=$test_count
 652                msg="$test_count test(s)"
 653        fi
 654        case "$test_failure" in
 655        0)
 656                # Maybe print SKIP message
 657                if test -n "$skip_all" && test $test_count -gt 0
 658                then
 659                        error "Can't use skip_all after running some tests"
 660                fi
 661                test -z "$skip_all" || skip_all=" # SKIP $skip_all"
 662
 663                if test $test_external_has_tap -eq 0
 664                then
 665                        if test $test_remaining -gt 0
 666                        then
 667                                say_color pass "# passed all $msg"
 668                        fi
 669                        say "1..$test_count$skip_all"
 670                fi
 671
 672                test -d "$remove_trash" &&
 673                cd "$(dirname "$remove_trash")" &&
 674                rm -rf "$(basename "$remove_trash")"
 675
 676                test_at_end_hook_
 677
 678                exit 0 ;;
 679
 680        *)
 681                if test $test_external_has_tap -eq 0
 682                then
 683                        say_color error "# failed $test_failure among $msg"
 684                        say "1..$test_count"
 685                fi
 686
 687                exit 1 ;;
 688
 689        esac
 690}
 691
 692if test -n "$valgrind"
 693then
 694        make_symlink () {
 695                test -h "$2" &&
 696                test "$1" = "$(readlink "$2")" || {
 697                        # be super paranoid
 698                        if mkdir "$2".lock
 699                        then
 700                                rm -f "$2" &&
 701                                ln -s "$1" "$2" &&
 702                                rm -r "$2".lock
 703                        else
 704                                while test -d "$2".lock
 705                                do
 706                                        say "Waiting for lock on $2."
 707                                        sleep 1
 708                                done
 709                        fi
 710                }
 711        }
 712
 713        make_valgrind_symlink () {
 714                # handle only executables, unless they are shell libraries that
 715                # need to be in the exec-path.
 716                test -x "$1" ||
 717                test "# " = "$(head -c 2 <"$1")" ||
 718                return;
 719
 720                base=$(basename "$1")
 721                symlink_target=$GIT_BUILD_DIR/$base
 722                # do not override scripts
 723                if test -x "$symlink_target" &&
 724                    test ! -d "$symlink_target" &&
 725                    test "#!" != "$(head -c 2 < "$symlink_target")"
 726                then
 727                        symlink_target=../valgrind.sh
 728                fi
 729                case "$base" in
 730                *.sh|*.perl)
 731                        symlink_target=../unprocessed-script
 732                esac
 733                # create the link, or replace it if it is out of date
 734                make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 735        }
 736
 737        # override all git executables in TEST_DIRECTORY/..
 738        GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 739        mkdir -p "$GIT_VALGRIND"/bin
 740        for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 741        do
 742                make_valgrind_symlink $file
 743        done
 744        # special-case the mergetools loadables
 745        make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 746        OLDIFS=$IFS
 747        IFS=:
 748        for path in $PATH
 749        do
 750                ls "$path"/git-* 2> /dev/null |
 751                while read file
 752                do
 753                        make_valgrind_symlink "$file"
 754                done
 755        done
 756        IFS=$OLDIFS
 757        PATH=$GIT_VALGRIND/bin:$PATH
 758        GIT_EXEC_PATH=$GIT_VALGRIND/bin
 759        export GIT_VALGRIND
 760        GIT_VALGRIND_MODE="$valgrind"
 761        export GIT_VALGRIND_MODE
 762        GIT_VALGRIND_ENABLED=t
 763        test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 764        export GIT_VALGRIND_ENABLED
 765elif test -n "$GIT_TEST_INSTALLED"
 766then
 767        GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 768        error "Cannot run git from $GIT_TEST_INSTALLED."
 769        PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 770        GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 771else # normal case, use ../bin-wrappers only unless $with_dashes:
 772        git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 773        if ! test -x "$git_bin_dir/git"
 774        then
 775                if test -z "$with_dashes"
 776                then
 777                        say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 778                fi
 779                with_dashes=t
 780        fi
 781        PATH="$git_bin_dir:$PATH"
 782        GIT_EXEC_PATH=$GIT_BUILD_DIR
 783        if test -n "$with_dashes"
 784        then
 785                PATH="$GIT_BUILD_DIR:$PATH"
 786        fi
 787fi
 788GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 789GIT_CONFIG_NOSYSTEM=1
 790GIT_ATTR_NOSYSTEM=1
 791export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 792
 793if test -z "$GIT_TEST_CMP"
 794then
 795        if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 796        then
 797                GIT_TEST_CMP="$DIFF -c"
 798        else
 799                GIT_TEST_CMP="$DIFF -u"
 800        fi
 801fi
 802
 803GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 804export GITPERLLIB
 805test -d "$GIT_BUILD_DIR"/templates/blt || {
 806        error "You haven't built things yet, have you?"
 807}
 808
 809if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 810then
 811        echo >&2 'You need to build test-chmtime:'
 812        echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 813        exit 1
 814fi
 815
 816# Test repository
 817TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 818test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 819case "$TRASH_DIRECTORY" in
 820/*) ;; # absolute path is good
 821 *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 822esac
 823test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 824rm -fr "$TRASH_DIRECTORY" || {
 825        GIT_EXIT_OK=t
 826        echo >&5 "FATAL: Cannot prepare test area"
 827        exit 1
 828}
 829
 830HOME="$TRASH_DIRECTORY"
 831GNUPGHOME="$HOME/gnupg-home-not-used"
 832export HOME GNUPGHOME
 833
 834# run the tput tests *after* changing HOME (in case ncurses needs
 835# ~/.terminfo for $TERM)
 836test -n "${color+set}" || test "x$ORIGINAL_TERM" != "xdumb" && (
 837                TERM=$ORIGINAL_TERM &&
 838                export TERM &&
 839                test -t 1 &&
 840                tput bold >/dev/null 2>&1 &&
 841                tput setaf 1 >/dev/null 2>&1 &&
 842                tput sgr0 >/dev/null 2>&1
 843        ) &&
 844        color=t
 845
 846if test -n "$color"
 847then
 848        say_color () {
 849                (
 850                TERM=$ORIGINAL_TERM
 851                export TERM
 852                case "$1" in
 853                error)
 854                        tput bold; tput setaf 1;; # bold red
 855                skip)
 856                        tput setaf 4;; # blue
 857                warn)
 858                        tput setaf 3;; # brown/yellow
 859                pass)
 860                        tput setaf 2;; # green
 861                info)
 862                        tput setaf 6;; # cyan
 863                *)
 864                        test -n "$quiet" && return;;
 865                esac
 866                shift
 867                printf "%s" "$*"
 868                tput sgr0
 869                echo
 870                )
 871        }
 872else
 873        say_color() {
 874                test -z "$1" && test -n "$quiet" && return
 875                shift
 876                printf "%s\n" "$*"
 877        }
 878fi
 879
 880if test -z "$TEST_NO_CREATE_REPO"
 881then
 882        test_create_repo "$TRASH_DIRECTORY"
 883else
 884        mkdir -p "$TRASH_DIRECTORY"
 885fi
 886# Use -P to resolve symlinks in our working directory so that the cwd
 887# in subprocesses like git equals our $PWD (for pathname comparisons).
 888cd -P "$TRASH_DIRECTORY" || exit 1
 889
 890this_test=${0##*/}
 891this_test=${this_test%%-*}
 892if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 893then
 894        say_color info >&3 "skipping test $this_test altogether"
 895        skip_all="skip all tests in $this_test"
 896        test_done
 897fi
 898
 899# Provide an implementation of the 'yes' utility
 900yes () {
 901        if test $# = 0
 902        then
 903                y=y
 904        else
 905                y="$*"
 906        fi
 907
 908        while echo "$y"
 909        do
 910                :
 911        done
 912}
 913
 914# Fix some commands on Windows
 915case $(uname -s) in
 916*MINGW*)
 917        # Windows has its own (incompatible) sort and find
 918        sort () {
 919                /usr/bin/sort "$@"
 920        }
 921        find () {
 922                /usr/bin/find "$@"
 923        }
 924        sum () {
 925                md5sum "$@"
 926        }
 927        # git sees Windows-style pwd
 928        pwd () {
 929                builtin pwd -W
 930        }
 931        # no POSIX permissions
 932        # backslashes in pathspec are converted to '/'
 933        # exec does not inherit the PID
 934        test_set_prereq MINGW
 935        test_set_prereq NATIVE_CRLF
 936        test_set_prereq SED_STRIPS_CR
 937        test_set_prereq GREP_STRIPS_CR
 938        GIT_TEST_CMP=mingw_test_cmp
 939        ;;
 940*CYGWIN*)
 941        test_set_prereq POSIXPERM
 942        test_set_prereq EXECKEEPSPID
 943        test_set_prereq CYGWIN
 944        test_set_prereq SED_STRIPS_CR
 945        test_set_prereq GREP_STRIPS_CR
 946        ;;
 947*)
 948        test_set_prereq POSIXPERM
 949        test_set_prereq BSLASHPSPEC
 950        test_set_prereq EXECKEEPSPID
 951        ;;
 952esac
 953
 954( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 955test -z "$NO_PERL" && test_set_prereq PERL
 956test -z "$NO_PYTHON" && test_set_prereq PYTHON
 957test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 958test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 959
 960# Can we rely on git's output in the C locale?
 961if test -n "$GETTEXT_POISON"
 962then
 963        GIT_GETTEXT_POISON=YesPlease
 964        export GIT_GETTEXT_POISON
 965        test_set_prereq GETTEXT_POISON
 966else
 967        test_set_prereq C_LOCALE_OUTPUT
 968fi
 969
 970# Use this instead of test_cmp to compare files that contain expected and
 971# actual output from git commands that can be translated.  When running
 972# under GETTEXT_POISON this pretends that the command produced expected
 973# results.
 974test_i18ncmp () {
 975        test -n "$GETTEXT_POISON" || test_cmp "$@"
 976}
 977
 978# Use this instead of "grep expected-string actual" to see if the
 979# output from a git command that can be translated either contains an
 980# expected string, or does not contain an unwanted one.  When running
 981# under GETTEXT_POISON this pretends that the command produced expected
 982# results.
 983test_i18ngrep () {
 984        if test -n "$GETTEXT_POISON"
 985        then
 986            : # pretend success
 987        elif test "x!" = "x$1"
 988        then
 989                shift
 990                ! grep "$@"
 991        else
 992                grep "$@"
 993        fi
 994}
 995
 996test_lazy_prereq PIPE '
 997        # test whether the filesystem supports FIFOs
 998        case $(uname -s) in
 999        CYGWIN*)
1000                false
1001                ;;
1002        *)
1003                rm -f testfifo && mkfifo testfifo
1004                ;;
1005        esac
1006'
1007
1008test_lazy_prereq SYMLINKS '
1009        # test whether the filesystem supports symbolic links
1010        ln -s x y && test -h y
1011'
1012
1013test_lazy_prereq FILEMODE '
1014        test "$(git config --bool core.filemode)" = true
1015'
1016
1017test_lazy_prereq CASE_INSENSITIVE_FS '
1018        echo good >CamelCase &&
1019        echo bad >camelcase &&
1020        test "$(cat CamelCase)" != good
1021'
1022
1023test_lazy_prereq UTF8_NFD_TO_NFC '
1024        # check whether FS converts nfd unicode to nfc
1025        auml=$(printf "\303\244")
1026        aumlcdiar=$(printf "\141\314\210")
1027        >"$auml" &&
1028        case "$(echo *)" in
1029        "$aumlcdiar")
1030                true ;;
1031        *)
1032                false ;;
1033        esac
1034'
1035
1036test_lazy_prereq AUTOIDENT '
1037        sane_unset GIT_AUTHOR_NAME &&
1038        sane_unset GIT_AUTHOR_EMAIL &&
1039        git var GIT_AUTHOR_IDENT
1040'
1041
1042test_lazy_prereq EXPENSIVE '
1043        test -n "$GIT_TEST_LONG"
1044'
1045
1046test_lazy_prereq USR_BIN_TIME '
1047        test -x /usr/bin/time
1048'
1049
1050test_lazy_prereq NOT_ROOT '
1051        uid=$(id -u) &&
1052        test "$uid" != 0
1053'
1054
1055# On a filesystem that lacks SANITY, a file can be deleted even if
1056# the containing directory doesn't have write permissions, or a file
1057# can be accessed even if the containing directory doesn't have read
1058# or execute permissions, causing our tests that validate that Git
1059# works sensibly in such situations.
1060test_lazy_prereq SANITY '
1061        mkdir SANETESTD.1 SANETESTD.2 &&
1062
1063        chmod +w SANETESTD.1 SANETESTD.2 &&
1064        >SANETESTD.1/x 2>SANETESTD.2/x &&
1065        chmod -w SANETESTD.1 &&
1066        chmod -rx SANETESTD.2 ||
1067        error "bug in test sript: cannot prepare SANETESTD"
1068
1069        ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1070        status=$?
1071
1072        chmod +rwx SANETESTD.1 SANETESTD.2 &&
1073        rm -rf SANETESTD.1 SANETESTD.2 ||
1074        error "bug in test sript: cannot clean SANETESTD"
1075        return $status
1076'
1077
1078GIT_UNZIP=${GIT_UNZIP:-unzip}
1079test_lazy_prereq UNZIP '
1080        "$GIT_UNZIP" -v
1081        test $? -ne 127
1082'