[thirdparty/git.git] / t / test-lib.sh

#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#

# if --tee was passed, write the output not only to the terminal, but
# additionally to the file test-results/$BASENAME.out, too.
case "$GIT_TEST_TEE_STARTED, $* " in
done,*)
	# do not redirect again
	;;
*' --tee '*|*' --va'*)
	mkdir -p test-results
	BASE=test-results/$(basename "$0" .sh)
	(GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
	 echo $? > $BASE.exit) | tee $BASE.out
	test "$(cat $BASE.exit)" = 0
	exit
	;;
esac

# Keep the original TERM for say_color
ORIGINAL_TERM=$TERM

# For repeatability, reset the environment to known value.
LANG=C
LC_ALL=C
PAGER=cat
TZ=UTC
TERM=dumb
export LANG LC_ALL PAGER TERM TZ
EDITOR=:
VISUAL=:
unset GIT_EDITOR
unset AUTHOR_DATE
unset AUTHOR_EMAIL
unset AUTHOR_NAME
unset COMMIT_AUTHOR_EMAIL
unset COMMIT_AUTHOR_NAME
unset EMAIL
unset GIT_ALTERNATE_OBJECT_DIRECTORIES
unset GIT_AUTHOR_DATE
GIT_AUTHOR_EMAIL=author@example.com
GIT_AUTHOR_NAME='A U Thor'
unset GIT_COMMITTER_DATE
GIT_COMMITTER_EMAIL=committer@example.com
GIT_COMMITTER_NAME='C O Mitter'
unset GIT_DIFF_OPTS
unset GIT_DIR
unset GIT_WORK_TREE
unset GIT_EXTERNAL_DIFF
unset GIT_INDEX_FILE
unset GIT_OBJECT_DIRECTORY
unset GIT_CEILING_DIRECTORIES
unset SHA1_FILE_DIRECTORIES
unset SHA1_FILE_DIRECTORY
GIT_MERGE_VERBOSITY=5
export GIT_MERGE_VERBOSITY
export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
export EDITOR VISUAL
GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}

# Protect ourselves from common misconfiguration to export
# CDPATH into the environment
unset CDPATH

case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
	1|2|true)
		echo "* warning: Some tests will not work if GIT_TRACE" \
			"is set as to trace on STDERR ! *"
		echo "* warning: Please set GIT_TRACE to something" \
			"other than 1, 2 or true ! *"
		;;
esac

# Each test should start with something like this, after copyright notices:
#
# test_description='Description of this test...
# This test checks if command xyzzy does the right thing...
# '
# . ./test-lib.sh
[ "x$ORIGINAL_TERM" != "xdumb" ] && (
		TERM=$ORIGINAL_TERM &&
		export TERM &&
		[ -t 1 ] &&
		tput bold >/dev/null 2>&1 &&
		tput setaf 1 >/dev/null 2>&1 &&
		tput sgr0 >/dev/null 2>&1
	) &&
	color=t

while test "$#" -ne 0
do
	case "$1" in
	-d|--d|--de|--deb|--debu|--debug)
		debug=t; shift ;;
	-i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
		immediate=t; shift ;;
	-l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
		GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
	-h|--h|--he|--hel|--help)
		help=t; shift ;;
	-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
		verbose=t; shift ;;
	-q|--q|--qu|--qui|--quie|--quiet)
		quiet=t; shift ;;
	--no-color)
		color=; shift ;;
	--no-python)
		# noop now...
		shift ;;
	--va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
		valgrind=t; verbose=t; shift ;;
	--tee)
		shift ;; # was handled already
	*)
		echo "error: unknown test option '$1'" >&2; exit 1 ;;
	esac
done

if test -n "$color"; then
	say_color () {
		(
		TERM=$ORIGINAL_TERM
		export TERM
		case "$1" in
			error) tput bold; tput setaf 1;; # bold red
			skip)  tput bold; tput setaf 2;; # bold green
			pass)  tput setaf 2;;            # green
			info)  tput setaf 3;;            # brown
			*) test -n "$quiet" && return;;
		esac
		shift
		printf "* %s" "$*"
		tput sgr0
		echo
		)
	}
else
	say_color() {
		test -z "$1" && test -n "$quiet" && return
		shift
		echo "* $*"
	}
fi

error () {
	say_color error "error: $*"
	GIT_EXIT_OK=t
	exit 1
}

say () {
	say_color info "$*"
}

test "${test_description}" != "" ||
error "Test script did not set test_description."

if test "$help" = "t"
then
	echo "$test_description"
	exit 0
fi

exec 5>&1
if test "$verbose" = "t"
then
	exec 4>&2 3>&1
else
	exec 4>/dev/null 3>/dev/null
fi

test_failure=0
test_count=0
test_fixed=0
test_broken=0
test_success=0

die () {
	code=$?
	if test -n "$GIT_EXIT_OK"
	then
		exit $code
	else
		echo >&5 "FATAL: Unexpected exit with code $code"
		exit 1
	fi
}

GIT_EXIT_OK=
trap 'die' EXIT

# The semantics of the editor variables are that of invoking
# sh -c "$EDITOR \"$@\"" files ...
#
# If our trash directory contains shell metacharacters, they will be
# interpreted if we just set $EDITOR directly, so do a little dance with
# environment variables to work around this.
#
# In particular, quoting isn't enough, as the path may contain the same quote
# that we're using.
test_set_editor () {
	FAKE_EDITOR="$1"
	export FAKE_EDITOR
	VISUAL='"$FAKE_EDITOR"'
	export VISUAL
}

test_tick () {
	if test -z "${test_tick+set}"
	then
		test_tick=1112911993
	else
		test_tick=$(($test_tick + 60))
	fi
	GIT_COMMITTER_DATE="$test_tick -0700"
	GIT_AUTHOR_DATE="$test_tick -0700"
	export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
}

# Call test_commit with the arguments "<message> [<file> [<contents>]]"
#
# This will commit a file with the given contents and the given commit
# message.  It will also add a tag with <message> as name.
#
# Both <file> and <contents> default to <message>.

test_commit () {
	file=${2:-"$1.t"}
	echo "${3-$1}" > "$file" &&
	git add "$file" &&
	test_tick &&
	git commit -m "$1" &&
	git tag "$1"
}

# Call test_merge with the arguments "<message> <commit>", where <commit>
# can be a tag pointing to the commit-to-merge.

test_merge () {
	test_tick &&
	git merge -m "$1" "$2" &&
	git tag "$1"
}

# This function helps systems where core.filemode=false is set.
# Use it instead of plain 'chmod +x' to set or unset the executable bit
# of a file in the working directory and add it to the index.

test_chmod () {
	chmod "$@" &&
	git update-index --add "--chmod=$@"
}

# Use test_set_prereq to tell that a particular prerequisite is available.
# The prerequisite can later be checked for in two ways:
#
# - Explicitly using test_have_prereq.
#
# - Implicitly by specifying the prerequisite tag in the calls to
#   test_expect_{success,failure,code}.
#
# The single parameter is the prerequisite tag (a simple word, in all
# capital letters by convention).

test_set_prereq () {
	satisfied="$satisfied$1 "
}
satisfied=" "

test_have_prereq () {
	case $satisfied in
	*" $1 "*)
		: yes, have it ;;
	*)
		! : nope ;;
	esac
}

# You are not expected to call test_ok_ and test_failure_ directly, use
# the text_expect_* functions instead.

test_ok_ () {
	test_success=$(($test_success + 1))
	say_color "" "  ok $test_count: $@"
}

test_failure_ () {
	test_failure=$(($test_failure + 1))
	say_color error "FAIL $test_count: $1"
	shift
	echo "$@" | sed -e 's/^/	/'
	test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
}

test_known_broken_ok_ () {
	test_fixed=$(($test_fixed+1))
	say_color "" "  FIXED $test_count: $@"
}

test_known_broken_failure_ () {
	test_broken=$(($test_broken+1))
	say_color skip "  still broken $test_count: $@"
}

test_debug () {
	test "$debug" = "" || eval "$1"
}

test_run_ () {
	eval >&3 2>&4 "$1"
	eval_ret="$?"
	return 0
}

test_skip () {
	test_count=$(($test_count+1))
	to_skip=
	for skp in $GIT_SKIP_TESTS
	do
		case $this_test.$test_count in
		$skp)
			to_skip=t
		esac
	done
	if test -z "$to_skip" && test -n "$prereq" &&
	   ! test_have_prereq "$prereq"
	then
		to_skip=t
	fi
	case "$to_skip" in
	t)
		say_color skip >&3 "skipping test: $@"
		say_color skip "skip $test_count: $1"
		: true
		;;
	*)
		false
		;;
	esac
}

test_expect_failure () {
	test "$#" = 3 && { prereq=$1; shift; } || prereq=
	test "$#" = 2 ||
	error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
	if ! test_skip "$@"
	then
		say >&3 "checking known breakage: $2"
		test_run_ "$2"
		if [ "$?" = 0 -a "$eval_ret" = 0 ]
		then
			test_known_broken_ok_ "$1"
		else
			test_known_broken_failure_ "$1"
		fi
	fi
	echo >&3 ""
}

test_expect_success () {
	test "$#" = 3 && { prereq=$1; shift; } || prereq=
	test "$#" = 2 ||
	error "bug in the test script: not 2 or 3 parameters to test-expect-success"
	if ! test_skip "$@"
	then
		say >&3 "expecting success: $2"
		test_run_ "$2"
		if [ "$?" = 0 -a "$eval_ret" = 0 ]
		then
			test_ok_ "$1"
		else
			test_failure_ "$@"
		fi
	fi
	echo >&3 ""
}

test_expect_code () {
	test "$#" = 4 && { prereq=$1; shift; } || prereq=
	test "$#" = 3 ||
	error "bug in the test script: not 3 or 4 parameters to test-expect-code"
	if ! test_skip "$@"
	then
		say >&3 "expecting exit code $1: $3"
		test_run_ "$3"
		if [ "$?" = 0 -a "$eval_ret" = "$1" ]
		then
			test_ok_ "$2"
		else
			test_failure_ "$@"
		fi
	fi
	echo >&3 ""
}

# test_external runs external test scripts that provide continuous
# test output about their progress, and succeeds/fails on
# zero/non-zero exit code.  It outputs the test output on stdout even
# in non-verbose mode, and announces the external script with "* run
# <n>: ..." before running it.  When providing relative paths, keep in
# mind that all scripts run in "trash directory".
# Usage: test_external description command arguments...
# Example: test_external 'Perl API' perl ../path/to/test.pl
test_external () {
	test "$#" = 4 && { prereq=$1; shift; } || prereq=
	test "$#" = 3 ||
	error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
	descr="$1"
	shift
	if ! test_skip "$descr" "$@"
	then
		# Announce the script to reduce confusion about the
		# test output that follows.
		say_color "" " run $test_count: $descr ($*)"
		# Run command; redirect its stderr to &4 as in
		# test_run_, but keep its stdout on our stdout even in
		# non-verbose mode.
		"$@" 2>&4
		if [ "$?" = 0 ]
		then
			test_ok_ "$descr"
		else
			test_failure_ "$descr" "$@"
		fi
	fi
}

# Like test_external, but in addition tests that the command generated
# no output on stderr.
test_external_without_stderr () {
	# The temporary file has no (and must have no) security
	# implications.
	tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
	stderr="$tmp/git-external-stderr.$$.tmp"
	test_external "$@" 4> "$stderr"
	[ -f "$stderr" ] || error "Internal error: $stderr disappeared."
	descr="no stderr: $1"
	shift
	say >&3 "expecting no stderr from previous command"
	if [ ! -s "$stderr" ]; then
		rm "$stderr"
		test_ok_ "$descr"
	else
		if [ "$verbose" = t ]; then
			output=`echo; echo Stderr is:; cat "$stderr"`
		else
			output=
		fi
		# rm first in case test_failure exits.
		rm "$stderr"
		test_failure_ "$descr" "$@" "$output"
	fi
}

# This is not among top-level (test_expect_success | test_expect_failure)
# but is a prefix that can be used in the test script, like:
#
#	test_expect_success 'complain and die' '
#           do something &&
#           do something else &&
#	    test_must_fail git checkout ../outerspace
#	'
#
# Writing this as "! git checkout ../outerspace" is wrong, because
# the failure could be due to a segv.  We want a controlled failure.

test_must_fail () {
	"$@"
	test $? -gt 0 -a $? -le 129 -o $? -gt 192
}

# test_cmp is a helper function to compare actual and expected output.
# You can use it like:
#
#	test_expect_success 'foo works' '
#		echo expected >expected &&
#		foo >actual &&
#		test_cmp expected actual
#	'
#
# This could be written as either "cmp" or "diff -u", but:
# - cmp's output is not nearly as easy to read as diff -u
# - not all diff versions understand "-u"

test_cmp() {
	$GIT_TEST_CMP "$@"
}

# Most tests can use the created repository, but some may need to create more.
# Usage: test_create_repo <directory>
test_create_repo () {
	test "$#" = 1 ||
	error "bug in the test script: not 1 parameter to test-create-repo"
	owd=`pwd`
	repo="$1"
	mkdir -p "$repo"
	cd "$repo" || error "Cannot setup test environment"
	"$GIT_EXEC_PATH/git-init" "--template=$TEST_DIRECTORY/../templates/blt/" >&3 2>&4 ||
	error "cannot run git init -- have you built things yet?"
	mv .git/hooks .git/hooks-disabled
	cd "$owd"
}

test_done () {
	GIT_EXIT_OK=t
	test_results_dir="$TEST_DIRECTORY/test-results"
	mkdir -p "$test_results_dir"
	test_results_path="$test_results_dir/${0%.sh}-$$"

	echo "total $test_count" >> $test_results_path
	echo "success $test_success" >> $test_results_path
	echo "fixed $test_fixed" >> $test_results_path
	echo "broken $test_broken" >> $test_results_path
	echo "failed $test_failure" >> $test_results_path
	echo "" >> $test_results_path

	if test "$test_fixed" != 0
	then
		say_color pass "fixed $test_fixed known breakage(s)"
	fi
	if test "$test_broken" != 0
	then
		say_color error "still have $test_broken known breakage(s)"
		msg="remaining $(($test_count-$test_broken)) test(s)"
	else
		msg="$test_count test(s)"
	fi
	case "$test_failure" in
	0)
		say_color pass "passed all $msg"

		test -d "$remove_trash" &&
		cd "$(dirname "$remove_trash")" &&
		rm -rf "$(basename "$remove_trash")"

		exit 0 ;;

	*)
		say_color error "failed $test_failure among $msg"
		exit 1 ;;

	esac
}

# Test the binaries we have just built.  The tests are kept in
# t/ subdirectory and are run in 'trash directory' subdirectory.
TEST_DIRECTORY=$(pwd)
if test -z "$valgrind"
then
	if test -z "$GIT_TEST_INSTALLED"
	then
		PATH=$TEST_DIRECTORY/..:$PATH
		GIT_EXEC_PATH=$TEST_DIRECTORY/..
	else
		GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
		error "Cannot run git from $GIT_TEST_INSTALLED."
		PATH=$GIT_TEST_INSTALLED:$TEST_DIRECTORY/..:$PATH
		GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
	fi
else
	make_symlink () {
		test -h "$2" &&
		test "$1" = "$(readlink "$2")" || {
			# be super paranoid
			if mkdir "$2".lock
			then
				rm -f "$2" &&
				ln -s "$1" "$2" &&
				rm -r "$2".lock
			else
				while test -d "$2".lock
				do
					say "Waiting for lock on $2."
					sleep 1
				done
			fi
		}
	}

	make_valgrind_symlink () {
		# handle only executables
		test -x "$1" || return

		base=$(basename "$1")
		symlink_target=$TEST_DIRECTORY/../$base
		# do not override scripts
		if test -x "$symlink_target" &&
		    test ! -d "$symlink_target" &&
		    test "#!" != "$(head -c 2 < "$symlink_target")"
		then
			symlink_target=../valgrind.sh
		fi
		case "$base" in
		*.sh|*.perl)
			symlink_target=../unprocessed-script
		esac
		# create the link, or replace it if it is out of date
		make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
	}

	# override all git executables in TEST_DIRECTORY/..
	GIT_VALGRIND=$TEST_DIRECTORY/valgrind
	mkdir -p "$GIT_VALGRIND"/bin
	for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
	do
		make_valgrind_symlink $file
	done
	OLDIFS=$IFS
	IFS=:
	for path in $PATH
	do
		ls "$path"/git-* 2> /dev/null |
		while read file
		do
			make_valgrind_symlink "$file"
		done
	done
	IFS=$OLDIFS
	PATH=$GIT_VALGRIND/bin:$PATH
	GIT_EXEC_PATH=$GIT_VALGRIND/bin
	export GIT_VALGRIND
fi
GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
unset GIT_CONFIG
GIT_CONFIG_NOSYSTEM=1
GIT_CONFIG_NOGLOBAL=1
export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL

GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
export GITPERLLIB
test -d ../templates/blt || {
	error "You haven't built things yet, have you?"
}

if ! test -x ../test-chmtime; then
	echo >&2 'You need to build test-chmtime:'
	echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
	exit 1
fi

. ../GIT-BUILD-OPTIONS

# Test repository
test="trash directory.$(basename "$0" .sh)"
test ! -z "$debug" || remove_trash="$TEST_DIRECTORY/$test"
rm -fr "$test" || {
	GIT_EXIT_OK=t
	echo >&5 "FATAL: Cannot prepare test area"
	exit 1
}

test_create_repo "$test"
# Use -P to resolve symlinks in our working directory so that the cwd
# in subprocesses like git equals our $PWD (for pathname comparisons).
cd -P "$test" || exit 1

this_test=${0##*/}
this_test=${this_test%%-*}
for skp in $GIT_SKIP_TESTS
do
	to_skip=
	for skp in $GIT_SKIP_TESTS
	do
		case "$this_test" in
		$skp)
			to_skip=t
		esac
	done
	case "$to_skip" in
	t)
		say_color skip >&3 "skipping test $this_test altogether"
		say_color skip "skip all tests in $this_test"
		test_done
	esac
done

# Fix some commands on Windows
case $(uname -s) in
*MINGW*)
	# Windows has its own (incompatible) sort and find
	sort () {
		/usr/bin/sort "$@"
	}
	find () {
		/usr/bin/find "$@"
	}
	sum () {
		md5sum "$@"
	}
	# git sees Windows-style pwd
	pwd () {
		builtin pwd -W
	}
	# no POSIX permissions
	# backslashes in pathspec are converted to '/'
	# exec does not inherit the PID
	;;
*)
	test_set_prereq POSIXPERM
	test_set_prereq BSLASHPSPEC
	test_set_prereq EXECKEEPSPID
	;;
esac

test -z "$NO_PERL" && test_set_prereq PERL

# test whether the filesystem supports symbolic links
ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
rm -f y
Commit	Line	Data
e1970ce4 JH	1	#!/bin/sh
	2	#
	3	# Copyright (c) 2005 Junio C Hamano
	4	#
	5
44138559 JS	6	# if --tee was passed, write the output not only to the terminal, but
	7	# additionally to the file test-results/$BASENAME.out, too.
	8	case "$GIT_TEST_TEE_STARTED, $* " in
	9	done,*)
	10	# do not redirect again
	11	;;
3da93652	12	' --tee '\|' --va')
44138559 JS	13	mkdir -p test-results
	14	BASE=test-results/$(basename "$0" .sh)
	15	(GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
	16	echo $? > $BASE.exit) \| tee $BASE.out
	17	test "$(cat $BASE.exit)" = 0
	18	exit
	19	;;
	20	esac
	21
c2116a17 JH	22	# Keep the original TERM for say_color
	23	ORIGINAL_TERM=$TERM
	24
e1970ce4 JH	25	# For repeatability, reset the environment to known value.
e1970ce4 JH	26	LANG=C
899460f3	27	LC_ALL=C
d9bdd39e	28	PAGER=cat
e1970ce4	29	TZ=UTC
c2116a17 JH	30	TERM=dumb
c2116a17 JH	31	export LANG LC_ALL PAGER TERM TZ
8ff99e74 EW	32	EDITOR=:
8ff99e74 EW	33	VISUAL=:
18508c39	34	unset GIT_EDITOR
e1970ce4 JH	35	unset AUTHOR_DATE
	36	unset AUTHOR_EMAIL
	37	unset AUTHOR_NAME
	38	unset COMMIT_AUTHOR_EMAIL
	39	unset COMMIT_AUTHOR_NAME
28a94f88	40	unset EMAIL
e1970ce4 JH	41	unset GIT_ALTERNATE_OBJECT_DIRECTORIES
e1970ce4 JH	42	unset GIT_AUTHOR_DATE
29e55cd5 JH	43	GIT_AUTHOR_EMAIL=author@example.com
29e55cd5 JH	44	GIT_AUTHOR_NAME='A U Thor'
6677c466	45	unset GIT_COMMITTER_DATE
29e55cd5 JH	46	GIT_COMMITTER_EMAIL=committer@example.com
29e55cd5 JH	47	GIT_COMMITTER_NAME='C O Mitter'
e1970ce4 JH	48	unset GIT_DIFF_OPTS
e1970ce4 JH	49	unset GIT_DIR
892c41b9	50	unset GIT_WORK_TREE
e1970ce4 JH	51	unset GIT_EXTERNAL_DIFF
	52	unset GIT_INDEX_FILE
	53	unset GIT_OBJECT_DIRECTORY
0454dd93	54	unset GIT_CEILING_DIRECTORIES
e1970ce4 JH	55	unset SHA1_FILE_DIRECTORIES
e1970ce4 JH	56	unset SHA1_FILE_DIRECTORY
8d0fc48f SP	57	GIT_MERGE_VERBOSITY=5
8d0fc48f SP	58	export GIT_MERGE_VERBOSITY
29e55cd5 JH	59	export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
29e55cd5 JH	60	export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
8ff99e74	61	export EDITOR VISUAL
82ebb0b6	62	GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
e1970ce4	63
886a3907 JH	64	# Protect ourselves from common misconfiguration to export
	65	# CDPATH into the environment
	66	unset CDPATH
	67
3d5c0cc9	68	case $(echo $GIT_TRACE \|tr "[A-Z]" "[a-z]") in
6ce4e61f CC	69	1\|2\|true)
	70	echo "* warning: Some tests will not work if GIT_TRACE" \
	71	"is set as to trace on STDERR ! *"
	72	echo "* warning: Please set GIT_TRACE to something" \
	73	"other than 1, 2 or true ! *"
	74	;;
	75	esac
	76
e1970ce4 JH	77	# Each test should start with something like this, after copyright notices:
	78	#
	79	# test_description='Description of this test...
	80	# This test checks if command xyzzy does the right thing...
	81	# '
	82	# . ./test-lib.sh
c2116a17 JH	83	[ "x$ORIGINAL_TERM" != "xdumb" ] && (
	84	TERM=$ORIGINAL_TERM &&
	85	export TERM &&
	86	[ -t 1 ] &&
	87	tput bold >/dev/null 2>&1 &&
	88	tput setaf 1 >/dev/null 2>&1 &&
	89	tput sgr0 >/dev/null 2>&1
	90	) &&
55db1df0	91	color=t
e1970ce4	92
e1970ce4 JH	93	while test "$#" -ne 0
	94	do
	95	case "$1" in
	96	-d\|--d\|--de\|--deb\|--debu\|--debug)
	97	debug=t; shift ;;
886856ab JH	98	-i\|--i\|--im\|--imm\|--imme\|--immed\|--immedi\|--immedia\|--immediat\|--immediate)
886856ab JH	99	immediate=t; shift ;;
5e2c08c6	100	-l\|--l\|--lo\|--lon\|--long\|--long-\|--long-t\|--long-te\|--long-tes\|--long-test\|--long-tests)
91e80b98	101	GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
e1970ce4	102	-h\|--h\|--he\|--hel\|--help)
570f3226	103	help=t; shift ;;
e1970ce4 JH	104	-v\|--v\|--ve\|--ver\|--verb\|--verbo\|--verbos\|--verbose)
e1970ce4 JH	105	verbose=t; shift ;;
1ece1274 PH	106	-q\|--q\|--qu\|--qui\|--quie\|--quiet)
1ece1274 PH	107	quiet=t; shift ;;
55db1df0	108	--no-color)
faa4bc35	109	color=; shift ;;
abb7c7b3	110	--no-python)
7cdbff14 JH	111	# noop now...
7cdbff14 JH	112	shift ;;
4e1be63c	113	--va\|--val\|--valg\|--valgr\|--valgri\|--valgrin\|--valgrind)
3da93652	114	valgrind=t; verbose=t; shift ;;
44138559 JS	115	--tee)
44138559 JS	116	shift ;; # was handled already
e1970ce4	117	*)
1f729dca	118	echo "error: unknown test option '$1'" >&2; exit 1 ;;
e1970ce4 JH	119	esac
	120	done
	121
55db1df0 PH	122	if test -n "$color"; then
55db1df0 PH	123	say_color () {
c2116a17 JH	124	(
	125	TERM=$ORIGINAL_TERM
	126	export TERM
55db1df0 PH	127	case "$1" in
	128	error) tput bold; tput setaf 1;; # bold red
	129	skip) tput bold; tput setaf 2;; # bold green
	130	pass) tput setaf 2;; # green
	131	info) tput setaf 3;; # brown
1ece1274	132	*) test -n "$quiet" && return;;
55db1df0 PH	133	esac
55db1df0 PH	134	shift
72d404de	135	printf "* %s" "$*"
55db1df0	136	tput sgr0
b8eecafd	137	echo
c2116a17	138	)
55db1df0 PH	139	}
	140	else
	141	say_color() {
1ece1274	142	test -z "$1" && test -n "$quiet" && return
55db1df0 PH	143	shift
	144	echo "* $*"
	145	}
	146	fi
	147
	148	error () {
	149	say_color error "error: $*"
6e7b5aaf	150	GIT_EXIT_OK=t
55db1df0 PH	151	exit 1
	152	}
	153
	154	say () {
	155	say_color info "$*"
	156	}
	157
570f3226 MB	158	test "${test_description}" != "" \|\|
	159	error "Test script did not set test_description."
	160
	161	if test "$help" = "t"
	162	then
	163	echo "$test_description"
	164	exit 0
	165	fi
	166
4d9d62fa	167	exec 5>&1
e1970ce4 JH	168	if test "$verbose" = "t"
	169	then
	170	exec 4>&2 3>&1
	171	else
	172	exec 4>/dev/null 3>/dev/null
	173	fi
	174
	175	test_failure=0
	176	test_count=0
41ac414e JH	177	test_fixed=0
41ac414e JH	178	test_broken=0
2d84e9fb	179	test_success=0
e1970ce4	180
faa4bc35	181	die () {
6e7b5aaf CB	182	code=$?
	183	if test -n "$GIT_EXIT_OK"
	184	then
	185	exit $code
	186	else
	187	echo >&5 "FATAL: Unexpected exit with code $code"
	188	exit 1
	189	fi
faa4bc35 CB	190	}
faa4bc35 CB	191
6e7b5aaf	192	GIT_EXIT_OK=
35641310	193	trap 'die' EXIT
41184273	194
02b35660 BD	195	# The semantics of the editor variables are that of invoking
	196	# sh -c "$EDITOR \"$@\"" files ...
	197	#
	198	# If our trash directory contains shell metacharacters, they will be
	199	# interpreted if we just set $EDITOR directly, so do a little dance with
	200	# environment variables to work around this.
	201	#
	202	# In particular, quoting isn't enough, as the path may contain the same quote
7b7b4516	203	# that we're using.
02b35660 BD	204	test_set_editor () {
	205	FAKE_EDITOR="$1"
	206	export FAKE_EDITOR
	207	VISUAL='"$FAKE_EDITOR"'
	208	export VISUAL
	209	}
	210
04509738 JH	211	test_tick () {
	212	if test -z "${test_tick+set}"
	213	then
21afc41c	214	test_tick=1112911993
04509738 JH	215	else
	216	test_tick=$(($test_tick + 60))
	217	fi
21afc41c JH	218	GIT_COMMITTER_DATE="$test_tick -0700"
21afc41c JH	219	GIT_AUTHOR_DATE="$test_tick -0700"
04509738 JH	220	export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
04509738 JH	221	}
e1970ce4	222
00884968 JS	223	# Call test_commit with the arguments "<message> [<file> [<contents>]]"
	224	#
	225	# This will commit a file with the given contents and the given commit
	226	# message. It will also add a tag with <message> as name.
	227	#
	228	# Both <file> and <contents> default to <message>.
	229
	230	test_commit () {
e656fc97	231	file=${2:-"$1.t"}
00884968 JS	232	echo "${3-$1}" > "$file" &&
	233	git add "$file" &&
	234	test_tick &&
	235	git commit -m "$1" &&
	236	git tag "$1"
	237	}
	238
	239	# Call test_merge with the arguments "<message> <commit>", where <commit>
	240	# can be a tag pointing to the commit-to-merge.
	241
	242	test_merge () {
	243	test_tick &&
	244	git merge -m "$1" "$2" &&
	245	git tag "$1"
	246	}
	247
1f553918 JS	248	# This function helps systems where core.filemode=false is set.
	249	# Use it instead of plain 'chmod +x' to set or unset the executable bit
	250	# of a file in the working directory and add it to the index.
	251
	252	test_chmod () {
	253	chmod "$@" &&
	254	git update-index --add "--chmod=$@"
	255	}
	256
a7bb3940 JS	257	# Use test_set_prereq to tell that a particular prerequisite is available.
	258	# The prerequisite can later be checked for in two ways:
	259	#
	260	# - Explicitly using test_have_prereq.
	261	#
	262	# - Implicitly by specifying the prerequisite tag in the calls to
	263	# test_expect_{success,failure,code}.
	264	#
	265	# The single parameter is the prerequisite tag (a simple word, in all
	266	# capital letters by convention).
	267
	268	test_set_prereq () {
	269	satisfied="$satisfied$1 "
	270	}
	271	satisfied=" "
	272
	273	test_have_prereq () {
	274	case $satisfied in
	275	" $1 ")
	276	: yes, have it ;;
	277	*)
	278	! : nope ;;
	279	esac
	280	}
	281
886856ab JH	282	# You are not expected to call test_ok_ and test_failure_ directly, use
	283	# the text_expect_* functions instead.
	284
	285	test_ok_ () {
d5d9de1b	286	test_success=$(($test_success + 1))
55db1df0	287	say_color "" " ok $test_count: $@"
e1970ce4 JH	288	}
e1970ce4 JH	289
886856ab	290	test_failure_ () {
d5d9de1b	291	test_failure=$(($test_failure + 1))
55db1df0	292	say_color error "FAIL $test_count: $1"
bf0dd8a8 JH	293	shift
bf0dd8a8 JH	294	echo "$@" \| sed -e 's/^/ /'
6e7b5aaf	295	test "$immediate" = "" \|\| { GIT_EXIT_OK=t; exit 1; }
886856ab JH	296	}
886856ab JH	297
41ac414e	298	test_known_broken_ok_ () {
41ac414e JH	299	test_fixed=$(($test_fixed+1))
	300	say_color "" " FIXED $test_count: $@"
	301	}
	302
	303	test_known_broken_failure_ () {
41ac414e JH	304	test_broken=$(($test_broken+1))
	305	say_color skip " still broken $test_count: $@"
	306	}
886856ab JH	307
886856ab JH	308	test_debug () {
8e832ebc	309	test "$debug" = "" \|\| eval "$1"
e1970ce4 JH	310	}
e1970ce4 JH	311
4d9d62fa	312	test_run_ () {
4d9d62fa PR	313	eval >&3 2>&4 "$1"
4d9d62fa PR	314	eval_ret="$?"
4d9d62fa PR	315	return 0
	316	}
	317
04ece593	318	test_skip () {
8586f98b	319	test_count=$(($test_count+1))
04ece593 JH	320	to_skip=
	321	for skp in $GIT_SKIP_TESTS
	322	do
8586f98b	323	case $this_test.$test_count in
04ece593 JH	324	$skp)
	325	to_skip=t
	326	esac
	327	done
a7bb3940 JS	328	if test -z "$to_skip" && test -n "$prereq" &&
	329	! test_have_prereq "$prereq"
	330	then
	331	to_skip=t
	332	fi
04ece593 JH	333	case "$to_skip" in
04ece593 JH	334	t)
55db1df0	335	say_color skip >&3 "skipping test: $@"
55db1df0	336	say_color skip "skip $test_count: $1"
04ece593 JH	337	: true
	338	;;
	339	*)
	340	false
	341	;;
	342	esac
	343	}
	344
e1970ce4	345	test_expect_failure () {
a7bb3940	346	test "$#" = 3 && { prereq=$1; shift; } \|\| prereq=
8e832ebc	347	test "$#" = 2 \|\|
a7bb3940	348	error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
04ece593	349	if ! test_skip "$@"
e1970ce4	350	then
41ac414e	351	say >&3 "checking known breakage: $2"
04ece593	352	test_run_ "$2"
41ac414e	353	if [ "$?" = 0 -a "$eval_ret" = 0 ]
04ece593	354	then
41ac414e	355	test_known_broken_ok_ "$1"
04ece593	356	else
6e7b5aaf	357	test_known_broken_failure_ "$1"
04ece593	358	fi
e1970ce4	359	fi
7a0cf2d0	360	echo >&3 ""
e1970ce4 JH	361	}
	362
	363	test_expect_success () {
a7bb3940	364	test "$#" = 3 && { prereq=$1; shift; } \|\| prereq=
8e832ebc	365	test "$#" = 2 \|\|
a7bb3940	366	error "bug in the test script: not 2 or 3 parameters to test-expect-success"
04ece593	367	if ! test_skip "$@"
e1970ce4	368	then
04ece593 JH	369	say >&3 "expecting success: $2"
	370	test_run_ "$2"
	371	if [ "$?" = 0 -a "$eval_ret" = 0 ]
	372	then
	373	test_ok_ "$1"
	374	else
	375	test_failure_ "$@"
	376	fi
e1970ce4	377	fi
7a0cf2d0	378	echo >&3 ""
e1970ce4 JH	379	}
e1970ce4 JH	380
d3bfdb75	381	test_expect_code () {
a7bb3940	382	test "$#" = 4 && { prereq=$1; shift; } \|\| prereq=
d3bfdb75	383	test "$#" = 3 \|\|
a7bb3940	384	error "bug in the test script: not 3 or 4 parameters to test-expect-code"
04ece593	385	if ! test_skip "$@"
d3bfdb75	386	then
04ece593 JH	387	say >&3 "expecting exit code $1: $3"
	388	test_run_ "$3"
	389	if [ "$?" = 0 -a "$eval_ret" = "$1" ]
	390	then
	391	test_ok_ "$2"
	392	else
	393	test_failure_ "$@"
	394	fi
d3bfdb75	395	fi
7a0cf2d0	396	echo >&3 ""
d3bfdb75 FK	397	}
d3bfdb75 FK	398
fb32c410 LW	399	# test_external runs external test scripts that provide continuous
	400	# test output about their progress, and succeeds/fails on
	401	# zero/non-zero exit code. It outputs the test output on stdout even
	402	# in non-verbose mode, and announces the external script with "* run
	403	# <n>: ..." before running it. When providing relative paths, keep in
	404	# mind that all scripts run in "trash directory".
	405	# Usage: test_external description command arguments...
	406	# Example: test_external 'Perl API' perl ../path/to/test.pl
	407	test_external () {
a7bb3940 JS	408	test "$#" = 4 && { prereq=$1; shift; } \|\| prereq=
	409	test "$#" = 3 \|\|
	410	error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
fb32c410 LW	411	descr="$1"
	412	shift
	413	if ! test_skip "$descr" "$@"
	414	then
	415	# Announce the script to reduce confusion about the
	416	# test output that follows.
8586f98b	417	say_color "" " run $test_count: $descr ($*)"
fb32c410 LW	418	# Run command; redirect its stderr to &4 as in
	419	# test_run_, but keep its stdout on our stdout even in
	420	# non-verbose mode.
	421	"$@" 2>&4
	422	if [ "$?" = 0 ]
	423	then
	424	test_ok_ "$descr"
	425	else
	426	test_failure_ "$descr" "$@"
	427	fi
	428	fi
	429	}
	430
	431	# Like test_external, but in addition tests that the command generated
	432	# no output on stderr.
	433	test_external_without_stderr () {
	434	# The temporary file has no (and must have no) security
	435	# implications.
	436	tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
	437	stderr="$tmp/git-external-stderr.$$.tmp"
	438	test_external "$@" 4> "$stderr"
	439	[ -f "$stderr" ] \|\| error "Internal error: $stderr disappeared."
	440	descr="no stderr: $1"
	441	shift
	442	say >&3 "expecting no stderr from previous command"
	443	if [ ! -s "$stderr" ]; then
	444	rm "$stderr"
	445	test_ok_ "$descr"
	446	else
	447	if [ "$verbose" = t ]; then
	448	output=`echo; echo Stderr is:; cat "$stderr"`
	449	else
	450	output=
	451	fi
	452	# rm first in case test_failure exits.
	453	rm "$stderr"
	454	test_failure_ "$descr" "$@" "$output"
	455	fi
	456	}
	457
74359821 JH	458	# This is not among top-level (test_expect_success \| test_expect_failure)
	459	# but is a prefix that can be used in the test script, like:
	460	#
	461	# test_expect_success 'complain and die' '
	462	# do something &&
	463	# do something else &&
	464	# test_must_fail git checkout ../outerspace
	465	# '
	466	#
	467	# Writing this as "! git checkout ../outerspace" is wrong, because
	468	# the failure could be due to a segv. We want a controlled failure.
	469
	470	test_must_fail () {
	471	"$@"
5a269730	472	test $? -gt 0 -a $? -le 129 -o $? -gt 192
74359821 JH	473	}
74359821 JH	474
82ebb0b6 JK	475	# test_cmp is a helper function to compare actual and expected output.
	476	# You can use it like:
	477	#
	478	# test_expect_success 'foo works' '
	479	# echo expected >expected &&
	480	# foo >actual &&
	481	# test_cmp expected actual
	482	# '
	483	#
	484	# This could be written as either "cmp" or "diff -u", but:
	485	# - cmp's output is not nearly as easy to read as diff -u
	486	# - not all diff versions understand "-u"
	487
	488	test_cmp() {
	489	$GIT_TEST_CMP "$@"
	490	}
	491
0509eb21	492	# Most tests can use the created repository, but some may need to create more.
eedf8f97 CW	493	# Usage: test_create_repo <directory>
	494	test_create_repo () {
	495	test "$#" = 1 \|\|
	496	error "bug in the test script: not 1 parameter to test-create-repo"
	497	owd=`pwd`
	498	repo="$1"
bfdbee98	499	mkdir -p "$repo"
eedf8f97	500	cd "$repo" \|\| error "Cannot setup test environment"
3a048328	501	"$GIT_EXEC_PATH/git-init" "--template=$TEST_DIRECTORY/../templates/blt/" >&3 2>&4 \|\|
5c94f87e	502	error "cannot run git init -- have you built things yet?"
eedf8f97 CW	503	mv .git/hooks .git/hooks-disabled
	504	cd "$owd"
	505	}
a6080a0a	506
e1970ce4	507	test_done () {
6e7b5aaf	508	GIT_EXIT_OK=t
2d84e9fb SR	509	test_results_dir="$TEST_DIRECTORY/test-results"
2d84e9fb SR	510	mkdir -p "$test_results_dir"
bba2a7b2	511	test_results_path="$test_results_dir/${0%.sh}-$$"
2d84e9fb SR	512
	513	echo "total $test_count" >> $test_results_path
	514	echo "success $test_success" >> $test_results_path
	515	echo "fixed $test_fixed" >> $test_results_path
	516	echo "broken $test_broken" >> $test_results_path
	517	echo "failed $test_failure" >> $test_results_path
	518	echo "" >> $test_results_path
41ac414e JH	519
	520	if test "$test_fixed" != 0
	521	then
	522	say_color pass "fixed $test_fixed known breakage(s)"
	523	fi
	524	if test "$test_broken" != 0
	525	then
	526	say_color error "still have $test_broken known breakage(s)"
11d54b8b JH	527	msg="remaining $(($test_count-$test_broken)) test(s)"
	528	else
	529	msg="$test_count test(s)"
41ac414e	530	fi
e1970ce4	531	case "$test_failure" in
10b94e28	532	0)
11d54b8b	533	say_color pass "passed all $msg"
abc5d372 JS	534
	535	test -d "$remove_trash" &&
	536	cd "$(dirname "$remove_trash")" &&
	537	rm -rf "$(basename "$remove_trash")"
	538
e1970ce4 JH	539	exit 0 ;;
	540
	541	*)
11d54b8b	542	say_color error "failed $test_failure among $msg"
e1970ce4 JH	543	exit 1 ;;
	544
	545	esac
	546	}
	547
	548	# Test the binaries we have just built. The tests are kept in
9adefee5	549	# t/ subdirectory and are run in 'trash directory' subdirectory.
2d84e9fb	550	TEST_DIRECTORY=$(pwd)
4e1be63c JS	551	if test -z "$valgrind"
4e1be63c JS	552	then
6720721e MG	553	if test -z "$GIT_TEST_INSTALLED"
	554	then
	555	PATH=$TEST_DIRECTORY/..:$PATH
	556	GIT_EXEC_PATH=$TEST_DIRECTORY/..
	557	else
	558	GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path) \|\|
	559	error "Cannot run git from $GIT_TEST_INSTALLED."
	560	PATH=$GIT_TEST_INSTALLED:$TEST_DIRECTORY/..:$PATH
	561	GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
	562	fi
4e1be63c JS	563	else
	564	make_symlink () {
	565	test -h "$2" &&
	566	test "$1" = "$(readlink "$2")" \|\| {
	567	# be super paranoid
	568	if mkdir "$2".lock
	569	then
	570	rm -f "$2" &&
	571	ln -s "$1" "$2" &&
	572	rm -r "$2".lock
	573	else
	574	while test -d "$2".lock
	575	do
	576	say "Waiting for lock on $2."
	577	sleep 1
	578	done
	579	fi
	580	}
	581	}
	582
	583	make_valgrind_symlink () {
	584	# handle only executables
	585	test -x "$1" \|\| return
	586
	587	base=$(basename "$1")
	588	symlink_target=$TEST_DIRECTORY/../$base
	589	# do not override scripts
	590	if test -x "$symlink_target" &&
	591	test ! -d "$symlink_target" &&
	592	test "#!" != "$(head -c 2 < "$symlink_target")"
	593	then
	594	symlink_target=../valgrind.sh
	595	fi
efd92ffd JS	596	case "$base" in
	597	.sh\|.perl)
	598	symlink_target=../unprocessed-script
	599	esac
4e1be63c JS	600	# create the link, or replace it if it is out of date
	601	make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" \|\| exit
	602	}
	603
	604	# override all git executables in TEST_DIRECTORY/..
	605	GIT_VALGRIND=$TEST_DIRECTORY/valgrind
	606	mkdir -p "$GIT_VALGRIND"/bin
	607	for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
	608	do
	609	make_valgrind_symlink $file
	610	done
efd92ffd JS	611	OLDIFS=$IFS
	612	IFS=:
	613	for path in $PATH
	614	do
	615	ls "$path"/git-* 2> /dev/null \|
	616	while read file
	617	do
	618	make_valgrind_symlink "$file"
	619	done
	620	done
	621	IFS=$OLDIFS
4e1be63c JS	622	PATH=$GIT_VALGRIND/bin:$PATH
	623	GIT_EXEC_PATH=$GIT_VALGRIND/bin
	624	export GIT_VALGRIND
4e1be63c	625	fi
8683a45d	626	GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
8bfa6bd6	627	unset GIT_CONFIG
8bfa6bd6 JK	628	GIT_CONFIG_NOSYSTEM=1
	629	GIT_CONFIG_NOGLOBAL=1
	630	export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
49ccb087	631
6fcca938 PB	632	GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
6fcca938 PB	633	export GITPERLLIB
eea42069 JH	634	test -d ../templates/blt \|\| {
	635	error "You haven't built things yet, have you?"
	636	}
e1970ce4	637
56cf9806 EW	638	if ! test -x ../test-chmtime; then
	639	echo >&2 'You need to build test-chmtime:'
	640	echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
	641	exit 1
	642	fi
	643
7cf7f54a JK	644	. ../GIT-BUILD-OPTIONS
7cf7f54a JK	645
e1970ce4	646	# Test repository
abc5d372	647	test="trash directory.$(basename "$0" .sh)"
5a4a088a	648	test ! -z "$debug" \|\| remove_trash="$TEST_DIRECTORY/$test"
8d14ac94	649	rm -fr "$test" \|\| {
6e7b5aaf	650	GIT_EXIT_OK=t
8d14ac94 JH	651	echo >&5 "FATAL: Cannot prepare test area"
	652	exit 1
	653	}
	654
4a7aaccd	655	test_create_repo "$test"
1bd9c648 LW	656	# Use -P to resolve symlinks in our working directory so that the cwd
	657	# in subprocesses like git equals our $PWD (for pathname comparisons).
	658	cd -P "$test" \|\| exit 1
04ece593	659
d5d9de1b JS	660	this_test=${0##*/}
d5d9de1b JS	661	this_test=${this_test%%-*}
04ece593 JH	662	for skp in $GIT_SKIP_TESTS
	663	do
	664	to_skip=
	665	for skp in $GIT_SKIP_TESTS
	666	do
	667	case "$this_test" in
	668	$skp)
	669	to_skip=t
	670	esac
	671	done
	672	case "$to_skip" in
	673	t)
55db1df0 PH	674	say_color skip >&3 "skipping test $this_test altogether"
55db1df0 PH	675	say_color skip "skip all tests in $this_test"
04ece593 JH	676	test_done
	677	esac
	678	done
f17e9fbb JS	679
	680	# Fix some commands on Windows
	681	case $(uname -s) in
	682	MINGW)
	683	# Windows has its own (incompatible) sort and find
	684	sort () {
	685	/usr/bin/sort "$@"
	686	}
	687	find () {
	688	/usr/bin/find "$@"
	689	}
5397ea31 JS	690	sum () {
	691	md5sum "$@"
	692	}
4114156a JS	693	# git sees Windows-style pwd
	694	pwd () {
	695	builtin pwd -W
	696	}
ee9fb68c	697	# no POSIX permissions
6fd1106a	698	# backslashes in pathspec are converted to '/'
fb9a2bea	699	# exec does not inherit the PID
ee9fb68c JS	700	;;
	701	*)
	702	test_set_prereq POSIXPERM
6fd1106a	703	test_set_prereq BSLASHPSPEC
fb9a2bea	704	test_set_prereq EXECKEEPSPID
f17e9fbb JS	705	;;
f17e9fbb JS	706	esac
704a3143	707
1b19ccd2 JK	708	test -z "$NO_PERL" && test_set_prereq PERL
1b19ccd2 JK	709
704a3143 JS	710	# test whether the filesystem supports symbolic links
	711	ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
	712	rm -f y