95df832ed951b03ff4bdd1d84bbd989a29b04f08
   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, $* " in
  53done,*)
  54        # do not redirect again
  55        ;;
  56*' --tee '*|*' --va'*)
  57        mkdir -p test-results
  58        BASE=test-results/$(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
  95GIT_AUTHOR_EMAIL=author@example.com
  96GIT_AUTHOR_NAME='A U Thor'
  97GIT_COMMITTER_EMAIL=committer@example.com
  98GIT_COMMITTER_NAME='C O Mitter'
  99GIT_MERGE_VERBOSITY=5
 100GIT_MERGE_AUTOEDIT=no
 101export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 102export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 103export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 104export EDITOR
 105
 106# Add libc MALLOC and MALLOC_PERTURB test
 107# only if we are not executing the test with valgrind
 108if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 109   test -n "$TEST_NO_MALLOC_CHECK"
 110then
 111        setup_malloc_check () {
 112                : nothing
 113        }
 114        teardown_malloc_check () {
 115                : nothing
 116        }
 117else
 118        setup_malloc_check () {
 119                MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 120                export MALLOC_CHECK_ MALLOC_PERTURB_
 121        }
 122        teardown_malloc_check () {
 123                unset MALLOC_CHECK_ MALLOC_PERTURB_
 124        }
 125fi
 126
 127# Protect ourselves from common misconfiguration to export
 128# CDPATH into the environment
 129unset CDPATH
 130
 131unset GREP_OPTIONS
 132unset UNZIP
 133
 134case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 1351|2|true)
 136        echo "* warning: Some tests will not work if GIT_TRACE" \
 137                "is set as to trace on STDERR ! *"
 138        echo "* warning: Please set GIT_TRACE to something" \
 139                "other than 1, 2 or true ! *"
 140        ;;
 141esac
 142
 143# Convenience
 144#
 145# A regexp to match 5 and 40 hexdigits
 146_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 147_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 148
 149# Zero SHA-1
 150_z40=0000000000000000000000000000000000000000
 151
 152# Line feed
 153LF='
 154'
 155
 156export _x05 _x40 _z40 LF
 157
 158# Each test should start with something like this, after copyright notices:
 159#
 160# test_description='Description of this test...
 161# This test checks if command xyzzy does the right thing...
 162# '
 163# . ./test-lib.sh
 164[ "x$ORIGINAL_TERM" != "xdumb" ] && (
 165                TERM=$ORIGINAL_TERM &&
 166                export TERM &&
 167                [ -t 1 ] &&
 168                tput bold >/dev/null 2>&1 &&
 169                tput setaf 1 >/dev/null 2>&1 &&
 170                tput sgr0 >/dev/null 2>&1
 171        ) &&
 172        color=t
 173
 174while test "$#" -ne 0
 175do
 176        case "$1" in
 177        -d|--d|--de|--deb|--debu|--debug)
 178                debug=t; shift ;;
 179        -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 180                immediate=t; shift ;;
 181        -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 182                GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 183        -h|--h|--he|--hel|--help)
 184                help=t; shift ;;
 185        -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 186                verbose=t; shift ;;
 187        --verbose-only=*)
 188                verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
 189                shift ;;
 190        -q|--q|--qu|--qui|--quie|--quiet)
 191                # Ignore --quiet under a TAP::Harness. Saying how many tests
 192                # passed without the ok/not ok details is always an error.
 193                test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 194        --with-dashes)
 195                with_dashes=t; shift ;;
 196        --no-color)
 197                color=; shift ;;
 198        --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 199                valgrind=memcheck
 200                shift ;;
 201        --valgrind=*)
 202                valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
 203                shift ;;
 204        --tee)
 205                shift ;; # was handled already
 206        --root=*)
 207                root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 208                shift ;;
 209        *)
 210                echo "error: unknown test option '$1'" >&2; exit 1 ;;
 211        esac
 212done
 213
 214test -n "$valgrind" && verbose=t
 215
 216if test -n "$color"
 217then
 218        say_color () {
 219                (
 220                TERM=$ORIGINAL_TERM
 221                export TERM
 222                case "$1" in
 223                error)
 224                        tput bold; tput setaf 1;; # bold red
 225                skip)
 226                        tput setaf 4;; # blue
 227                warn)
 228                        tput setaf 3;; # brown/yellow
 229                pass)
 230                        tput setaf 2;; # green
 231                info)
 232                        tput setaf 6;; # cyan
 233                *)
 234                        test -n "$quiet" && return;;
 235                esac
 236                shift
 237                printf "%s" "$*"
 238                tput sgr0
 239                echo
 240                )
 241        }
 242else
 243        say_color() {
 244                test -z "$1" && test -n "$quiet" && return
 245                shift
 246                printf "%s\n" "$*"
 247        }
 248fi
 249
 250error () {
 251        say_color error "error: $*"
 252        GIT_EXIT_OK=t
 253        exit 1
 254}
 255
 256say () {
 257        say_color info "$*"
 258}
 259
 260test "${test_description}" != "" ||
 261error "Test script did not set test_description."
 262
 263if test "$help" = "t"
 264then
 265        echo "$test_description"
 266        exit 0
 267fi
 268
 269exec 5>&1
 270exec 6<&0
 271if test "$verbose" = "t"
 272then
 273        exec 4>&2 3>&1
 274else
 275        exec 4>/dev/null 3>/dev/null
 276fi
 277
 278test_failure=0
 279test_count=0
 280test_fixed=0
 281test_broken=0
 282test_success=0
 283
 284test_external_has_tap=0
 285
 286die () {
 287        code=$?
 288        if test -n "$GIT_EXIT_OK"
 289        then
 290                exit $code
 291        else
 292                echo >&5 "FATAL: Unexpected exit with code $code"
 293                exit 1
 294        fi
 295}
 296
 297GIT_EXIT_OK=
 298trap 'die' EXIT
 299
 300# The user-facing functions are loaded from a separate file so that
 301# test_perf subshells can have them too
 302. "$TEST_DIRECTORY/test-lib-functions.sh"
 303
 304# You are not expected to call test_ok_ and test_failure_ directly, use
 305# the text_expect_* functions instead.
 306
 307test_ok_ () {
 308        test_success=$(($test_success + 1))
 309        say_color "" "ok $test_count - $@"
 310}
 311
 312test_failure_ () {
 313        test_failure=$(($test_failure + 1))
 314        say_color error "not ok $test_count - $1"
 315        shift
 316        echo "$@" | sed -e 's/^/#       /'
 317        test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 318}
 319
 320test_known_broken_ok_ () {
 321        test_fixed=$(($test_fixed+1))
 322        say_color error "ok $test_count - $@ # TODO known breakage vanished"
 323}
 324
 325test_known_broken_failure_ () {
 326        test_broken=$(($test_broken+1))
 327        say_color warn "not ok $test_count - $@ # TODO known breakage"
 328}
 329
 330test_debug () {
 331        test "$debug" = "" || eval "$1"
 332}
 333
 334match_pattern_list () {
 335        arg="$1"
 336        shift
 337        test -z "$*" && return 1
 338        for pattern_
 339        do
 340                case "$arg" in
 341                $pattern_)
 342                        return 0
 343                esac
 344        done
 345        return 1
 346}
 347
 348maybe_teardown_verbose () {
 349        test -z "$verbose_only" && return
 350        exec 4>/dev/null 3>/dev/null
 351        verbose=
 352}
 353
 354last_verbose=t
 355maybe_setup_verbose () {
 356        test -z "$verbose_only" && return
 357        if match_pattern_list $test_count $verbose_only
 358        then
 359                exec 4>&2 3>&1
 360                # Emit a delimiting blank line when going from
 361                # non-verbose to verbose.  Within verbose mode the
 362                # delimiter is printed by test_expect_*.  The choice
 363                # of the initial $last_verbose is such that before
 364                # test 1, we do not print it.
 365                test -z "$last_verbose" && echo >&3 ""
 366                verbose=t
 367        else
 368                exec 4>/dev/null 3>/dev/null
 369                verbose=
 370        fi
 371        last_verbose=$verbose
 372}
 373
 374test_eval_ () {
 375        # This is a separate function because some tests use
 376        # "return" to end a test_expect_success block early.
 377        eval </dev/null >&3 2>&4 "$*"
 378}
 379
 380test_run_ () {
 381        test_cleanup=:
 382        expecting_failure=$2
 383        setup_malloc_check
 384        test_eval_ "$1"
 385        eval_ret=$?
 386        teardown_malloc_check
 387
 388        if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 389        then
 390                setup_malloc_check
 391                test_eval_ "$test_cleanup"
 392                teardown_malloc_check
 393        fi
 394        if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 395        then
 396                echo ""
 397        fi
 398        return "$eval_ret"
 399}
 400
 401test_start_ () {
 402        test_count=$(($test_count+1))
 403        maybe_setup_verbose
 404}
 405
 406test_finish_ () {
 407        echo >&3 ""
 408        maybe_teardown_verbose
 409}
 410
 411test_skip () {
 412        to_skip=
 413        if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 414        then
 415                to_skip=t
 416        fi
 417        if test -z "$to_skip" && test -n "$test_prereq" &&
 418           ! test_have_prereq "$test_prereq"
 419        then
 420                to_skip=t
 421        fi
 422        case "$to_skip" in
 423        t)
 424                of_prereq=
 425                if test "$missing_prereq" != "$test_prereq"
 426                then
 427                        of_prereq=" of $test_prereq"
 428                fi
 429
 430                say_color skip >&3 "skipping test: $@"
 431                say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 432                : true
 433                ;;
 434        *)
 435                false
 436                ;;
 437        esac
 438}
 439
 440# stub; perf-lib overrides it
 441test_at_end_hook_ () {
 442        :
 443}
 444
 445test_done () {
 446        GIT_EXIT_OK=t
 447
 448        # Note: t0000 relies on $HARNESS_ACTIVE disabling the .counts
 449        # output file
 450        if test -z "$HARNESS_ACTIVE"
 451        then
 452                test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 453                mkdir -p "$test_results_dir"
 454                base=${0##*/}
 455                test_results_path="$test_results_dir/${base%.sh}-$$.counts"
 456
 457                cat >>"$test_results_path" <<-EOF
 458                total $test_count
 459                success $test_success
 460                fixed $test_fixed
 461                broken $test_broken
 462                failed $test_failure
 463
 464                EOF
 465        fi
 466
 467        if test "$test_fixed" != 0
 468        then
 469                say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 470        fi
 471        if test "$test_broken" != 0
 472        then
 473                say_color warn "# still have $test_broken known breakage(s)"
 474        fi
 475        if test "$test_broken" != 0 || test "$test_fixed" != 0
 476        then
 477                test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 478                msg="remaining $test_remaining test(s)"
 479        else
 480                test_remaining=$test_count
 481                msg="$test_count test(s)"
 482        fi
 483        case "$test_failure" in
 484        0)
 485                # Maybe print SKIP message
 486                if test -n "$skip_all" && test $test_count -gt 0
 487                then
 488                        error "Can't use skip_all after running some tests"
 489                fi
 490                [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 491
 492                if test $test_external_has_tap -eq 0
 493                then
 494                        if test $test_remaining -gt 0
 495                        then
 496                                say_color pass "# passed all $msg"
 497                        fi
 498                        say "1..$test_count$skip_all"
 499                fi
 500
 501                test -d "$remove_trash" &&
 502                cd "$(dirname "$remove_trash")" &&
 503                rm -rf "$(basename "$remove_trash")"
 504
 505                test_at_end_hook_
 506
 507                exit 0 ;;
 508
 509        *)
 510                if test $test_external_has_tap -eq 0
 511                then
 512                        say_color error "# failed $test_failure among $msg"
 513                        say "1..$test_count"
 514                fi
 515
 516                exit 1 ;;
 517
 518        esac
 519}
 520
 521if test -n "$valgrind"
 522then
 523        make_symlink () {
 524                test -h "$2" &&
 525                test "$1" = "$(readlink "$2")" || {
 526                        # be super paranoid
 527                        if mkdir "$2".lock
 528                        then
 529                                rm -f "$2" &&
 530                                ln -s "$1" "$2" &&
 531                                rm -r "$2".lock
 532                        else
 533                                while test -d "$2".lock
 534                                do
 535                                        say "Waiting for lock on $2."
 536                                        sleep 1
 537                                done
 538                        fi
 539                }
 540        }
 541
 542        make_valgrind_symlink () {
 543                # handle only executables, unless they are shell libraries that
 544                # need to be in the exec-path.  We will just use "#!" as a
 545                # guess for a shell-script, since we have no idea what the user
 546                # may have configured as the shell path.
 547                test -x "$1" ||
 548                test "#!" = "$(head -c 2 <"$1")" ||
 549                return;
 550
 551                base=$(basename "$1")
 552                symlink_target=$GIT_BUILD_DIR/$base
 553                # do not override scripts
 554                if test -x "$symlink_target" &&
 555                    test ! -d "$symlink_target" &&
 556                    test "#!" != "$(head -c 2 < "$symlink_target")"
 557                then
 558                        symlink_target=../valgrind.sh
 559                fi
 560                case "$base" in
 561                *.sh|*.perl)
 562                        symlink_target=../unprocessed-script
 563                esac
 564                # create the link, or replace it if it is out of date
 565                make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 566        }
 567
 568        # override all git executables in TEST_DIRECTORY/..
 569        GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 570        mkdir -p "$GIT_VALGRIND"/bin
 571        for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 572        do
 573                make_valgrind_symlink $file
 574        done
 575        # special-case the mergetools loadables
 576        make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 577        OLDIFS=$IFS
 578        IFS=:
 579        for path in $PATH
 580        do
 581                ls "$path"/git-* 2> /dev/null |
 582                while read file
 583                do
 584                        make_valgrind_symlink "$file"
 585                done
 586        done
 587        IFS=$OLDIFS
 588        PATH=$GIT_VALGRIND/bin:$PATH
 589        GIT_EXEC_PATH=$GIT_VALGRIND/bin
 590        export GIT_VALGRIND
 591        GIT_VALGRIND_MODE="$valgrind"
 592        export GIT_VALGRIND_MODE
 593elif test -n "$GIT_TEST_INSTALLED"
 594then
 595        GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 596        error "Cannot run git from $GIT_TEST_INSTALLED."
 597        PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 598        GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 599else # normal case, use ../bin-wrappers only unless $with_dashes:
 600        git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 601        if ! test -x "$git_bin_dir/git"
 602        then
 603                if test -z "$with_dashes"
 604                then
 605                        say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 606                fi
 607                with_dashes=t
 608        fi
 609        PATH="$git_bin_dir:$PATH"
 610        GIT_EXEC_PATH=$GIT_BUILD_DIR
 611        if test -n "$with_dashes"
 612        then
 613                PATH="$GIT_BUILD_DIR:$PATH"
 614        fi
 615fi
 616GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 617unset GIT_CONFIG
 618GIT_CONFIG_NOSYSTEM=1
 619GIT_ATTR_NOSYSTEM=1
 620export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 621
 622if test -z "$GIT_TEST_CMP"
 623then
 624        if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 625        then
 626                GIT_TEST_CMP="$DIFF -c"
 627        else
 628                GIT_TEST_CMP="$DIFF -u"
 629        fi
 630fi
 631
 632GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 633export GITPERLLIB
 634test -d "$GIT_BUILD_DIR"/templates/blt || {
 635        error "You haven't built things yet, have you?"
 636}
 637
 638if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 639then
 640        GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
 641        export GITPYTHONLIB
 642        test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
 643                error "You haven't built git_remote_helpers yet, have you?"
 644        }
 645fi
 646
 647if ! test -x "$GIT_BUILD_DIR"/test-chmtime
 648then
 649        echo >&2 'You need to build test-chmtime:'
 650        echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 651        exit 1
 652fi
 653
 654# Test repository
 655TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 656test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 657case "$TRASH_DIRECTORY" in
 658/*) ;; # absolute path is good
 659 *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 660esac
 661test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 662rm -fr "$TRASH_DIRECTORY" || {
 663        GIT_EXIT_OK=t
 664        echo >&5 "FATAL: Cannot prepare test area"
 665        exit 1
 666}
 667
 668HOME="$TRASH_DIRECTORY"
 669export HOME
 670
 671if test -z "$TEST_NO_CREATE_REPO"
 672then
 673        test_create_repo "$TRASH_DIRECTORY"
 674else
 675        mkdir -p "$TRASH_DIRECTORY"
 676fi
 677# Use -P to resolve symlinks in our working directory so that the cwd
 678# in subprocesses like git equals our $PWD (for pathname comparisons).
 679cd -P "$TRASH_DIRECTORY" || exit 1
 680
 681this_test=${0##*/}
 682this_test=${this_test%%-*}
 683if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 684then
 685        say_color info >&3 "skipping test $this_test altogether"
 686        skip_all="skip all tests in $this_test"
 687        test_done
 688fi
 689
 690# Provide an implementation of the 'yes' utility
 691yes () {
 692        if test $# = 0
 693        then
 694                y=y
 695        else
 696                y="$*"
 697        fi
 698
 699        while echo "$y"
 700        do
 701                :
 702        done
 703}
 704
 705# Fix some commands on Windows
 706case $(uname -s) in
 707*MINGW*)
 708        # Windows has its own (incompatible) sort and find
 709        sort () {
 710                /usr/bin/sort "$@"
 711        }
 712        find () {
 713                /usr/bin/find "$@"
 714        }
 715        sum () {
 716                md5sum "$@"
 717        }
 718        # git sees Windows-style pwd
 719        pwd () {
 720                builtin pwd -W
 721        }
 722        # no POSIX permissions
 723        # backslashes in pathspec are converted to '/'
 724        # exec does not inherit the PID
 725        test_set_prereq MINGW
 726        test_set_prereq NOT_CYGWIN
 727        test_set_prereq SED_STRIPS_CR
 728        ;;
 729*CYGWIN*)
 730        test_set_prereq POSIXPERM
 731        test_set_prereq EXECKEEPSPID
 732        test_set_prereq NOT_MINGW
 733        test_set_prereq CYGWIN
 734        test_set_prereq SED_STRIPS_CR
 735        ;;
 736*)
 737        test_set_prereq POSIXPERM
 738        test_set_prereq BSLASHPSPEC
 739        test_set_prereq EXECKEEPSPID
 740        test_set_prereq NOT_MINGW
 741        test_set_prereq NOT_CYGWIN
 742        ;;
 743esac
 744
 745( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
 746test -z "$NO_PERL" && test_set_prereq PERL
 747test -z "$NO_PYTHON" && test_set_prereq PYTHON
 748test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 749test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 750
 751# Can we rely on git's output in the C locale?
 752if test -n "$GETTEXT_POISON"
 753then
 754        GIT_GETTEXT_POISON=YesPlease
 755        export GIT_GETTEXT_POISON
 756        test_set_prereq GETTEXT_POISON
 757else
 758        test_set_prereq C_LOCALE_OUTPUT
 759fi
 760
 761# Use this instead of test_cmp to compare files that contain expected and
 762# actual output from git commands that can be translated.  When running
 763# under GETTEXT_POISON this pretends that the command produced expected
 764# results.
 765test_i18ncmp () {
 766        test -n "$GETTEXT_POISON" || test_cmp "$@"
 767}
 768
 769# Use this instead of "grep expected-string actual" to see if the
 770# output from a git command that can be translated either contains an
 771# expected string, or does not contain an unwanted one.  When running
 772# under GETTEXT_POISON this pretends that the command produced expected
 773# results.
 774test_i18ngrep () {
 775        if test -n "$GETTEXT_POISON"
 776        then
 777            : # pretend success
 778        elif test "x!" = "x$1"
 779        then
 780                shift
 781                ! grep "$@"
 782        else
 783                grep "$@"
 784        fi
 785}
 786
 787test_lazy_prereq PIPE '
 788        # test whether the filesystem supports FIFOs
 789        rm -f testfifo && mkfifo testfifo
 790'
 791
 792test_lazy_prereq SYMLINKS '
 793        # test whether the filesystem supports symbolic links
 794        ln -s x y && test -h y
 795'
 796
 797test_lazy_prereq CASE_INSENSITIVE_FS '
 798        echo good >CamelCase &&
 799        echo bad >camelcase &&
 800        test "$(cat CamelCase)" != good
 801'
 802
 803test_lazy_prereq UTF8_NFD_TO_NFC '
 804        # check whether FS converts nfd unicode to nfc
 805        auml=$(printf "\303\244")
 806        aumlcdiar=$(printf "\141\314\210")
 807        >"$auml" &&
 808        case "$(echo *)" in
 809        "$aumlcdiar")
 810                true ;;
 811        *)
 812                false ;;
 813        esac
 814'
 815
 816test_lazy_prereq AUTOIDENT '
 817        sane_unset GIT_AUTHOR_NAME &&
 818        sane_unset GIT_AUTHOR_EMAIL &&
 819        git var GIT_AUTHOR_IDENT
 820'
 821
 822# When the tests are run as root, permission tests will report that
 823# things are writable when they shouldn't be.
 824test -w / || test_set_prereq SANITY
 825
 826GIT_UNZIP=${GIT_UNZIP:-unzip}
 827test_lazy_prereq UNZIP '
 828        "$GIT_UNZIP" -v
 829        test $? -ne 127
 830'