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-rw-r--r--t/test-lib.sh870
1 files changed, 870 insertions, 0 deletions
diff --git a/t/test-lib.sh b/t/test-lib.sh
new file mode 100644
index 0000000000..d303e6c943
--- /dev/null
+++ b/t/test-lib.sh
@@ -0,0 +1,870 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see http://www.gnu.org/licenses/ .
+
+# Keep the original TERM for say_color
+ORIGINAL_TERM=$TERM
+
+# Test the binaries we have just built. The tests are kept in
+# t/ subdirectory and are run in 'trash directory' subdirectory.
+if test -z "$TEST_DIRECTORY"
+then
+ # We allow tests to override this, in case they want to run tests
+ # outside of t/, e.g. for running tests on the test library
+ # itself.
+ TEST_DIRECTORY=$(pwd)
+else
+ # ensure that TEST_DIRECTORY is an absolute path so that it
+ # is valid even if the current working directory is changed
+ TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
+fi
+if test -z "$TEST_OUTPUT_DIRECTORY"
+then
+ # Similarly, override this to store the test-results subdir
+ # elsewhere
+ TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
+fi
+GIT_BUILD_DIR="$TEST_DIRECTORY"/..
+
+################################################################
+# It appears that people try to run tests without building...
+"$GIT_BUILD_DIR/git" >/dev/null
+if test $? != 1
+then
+ echo >&2 'error: you do not seem to have built git yet.'
+ exit 1
+fi
+
+. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
+export PERL_PATH SHELL_PATH
+
+# 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_OUTPUT_DIRECTORY/test-results"
+ BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
+ (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
+ echo $? > $BASE.exit) | tee $BASE.out
+ test "$(cat $BASE.exit)" = 0
+ exit
+ ;;
+esac
+
+# 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=:
+# A call to "unset" with no arguments causes at least Solaris 10
+# /usr/xpg4/bin/sh and /bin/ksh to bail out. So keep the unsets
+# deriving from the command substitution clustered with the other
+# ones.
+unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
+ my @env = keys %ENV;
+ my $ok = join("|", qw(
+ TRACE
+ DEBUG
+ USE_LOOKUP
+ TEST
+ .*_TEST
+ PROVE
+ VALGRIND
+ UNZIP
+ PERF_
+ ));
+ my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
+ print join("\n", @vars);
+')
+unset XDG_CONFIG_HOME
+unset GITPERLLIB
+GIT_AUTHOR_EMAIL=author@example.com
+GIT_AUTHOR_NAME='A U Thor'
+GIT_COMMITTER_EMAIL=committer@example.com
+GIT_COMMITTER_NAME='C O Mitter'
+GIT_MERGE_VERBOSITY=5
+GIT_MERGE_AUTOEDIT=no
+export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
+export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
+export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
+export EDITOR
+
+# Add libc MALLOC and MALLOC_PERTURB test
+# only if we are not executing the test with valgrind
+if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
+ test -n "$TEST_NO_MALLOC_CHECK"
+then
+ setup_malloc_check () {
+ : nothing
+ }
+ teardown_malloc_check () {
+ : nothing
+ }
+else
+ setup_malloc_check () {
+ MALLOC_CHECK_=3 MALLOC_PERTURB_=165
+ export MALLOC_CHECK_ MALLOC_PERTURB_
+ }
+ teardown_malloc_check () {
+ unset MALLOC_CHECK_ MALLOC_PERTURB_
+ }
+fi
+
+# Protect ourselves from common misconfiguration to export
+# CDPATH into the environment
+unset CDPATH
+
+unset GREP_OPTIONS
+unset UNZIP
+
+case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
+1|2|true)
+ echo "* warning: Some tests will not work if GIT_TRACE" \
+ "is set as to trace on STDERR ! *"
+ echo "* warning: Please set GIT_TRACE to something" \
+ "other than 1, 2 or true ! *"
+ ;;
+esac
+
+# Convenience
+#
+# A regexp to match 5 and 40 hexdigits
+_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
+_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
+
+# Zero SHA-1
+_z40=0000000000000000000000000000000000000000
+
+# Line feed
+LF='
+'
+
+export _x05 _x40 _z40 LF
+
+# Each test should start with something like this, after copyright notices:
+#
+# test_description='Description of this test...
+# This test checks if command xyzzy does the right thing...
+# '
+# . ./test-lib.sh
+[ "x$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 "$1" in
+ -d|--d|--de|--deb|--debu|--debug)
+ debug=t; shift ;;
+ -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
+ immediate=t; shift ;;
+ -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
+ GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
+ -h|--h|--he|--hel|--help)
+ help=t; shift ;;
+ -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
+ verbose=t; shift ;;
+ --verbose-only=*)
+ verbose_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
+ shift ;;
+ -q|--q|--qu|--qui|--quie|--quiet)
+ # Ignore --quiet under a TAP::Harness. Saying how many tests
+ # passed without the ok/not ok details is always an error.
+ test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
+ --with-dashes)
+ with_dashes=t; shift ;;
+ --no-color)
+ color=; shift ;;
+ --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
+ valgrind=memcheck
+ shift ;;
+ --valgrind=*)
+ valgrind=$(expr "z$1" : 'z[^=]*=\(.*\)')
+ shift ;;
+ --valgrind-only=*)
+ valgrind_only=$(expr "z$1" : 'z[^=]*=\(.*\)')
+ shift ;;
+ --tee)
+ shift ;; # was handled already
+ --root=*)
+ root=$(expr "z$1" : 'z[^=]*=\(.*\)')
+ shift ;;
+ *)
+ echo "error: unknown test option '$1'" >&2; exit 1 ;;
+ esac
+done
+
+if test -n "$valgrind_only"
+then
+ test -z "$valgrind" && valgrind=memcheck
+ test -z "$verbose" && verbose_only="$valgrind_only"
+elif test -n "$valgrind"
+then
+ verbose=t
+fi
+
+if test -n "$color"
+then
+ say_color () {
+ (
+ TERM=$ORIGINAL_TERM
+ export TERM
+ case "$1" in
+ error)
+ tput bold; tput setaf 1;; # bold red
+ skip)
+ tput setaf 4;; # blue
+ warn)
+ tput setaf 3;; # brown/yellow
+ pass)
+ tput setaf 2;; # green
+ info)
+ tput setaf 6;; # cyan
+ *)
+ test -n "$quiet" && return;;
+ esac
+ shift
+ printf "%s" "$*"
+ tput sgr0
+ echo
+ )
+ }
+else
+ say_color() {
+ test -z "$1" && test -n "$quiet" && return
+ shift
+ printf "%s\n" "$*"
+ }
+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 "$test_description"
+ exit 0
+fi
+
+exec 5>&1
+exec 6<&0
+if test "$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
+
+test_external_has_tap=0
+
+die () {
+ code=$?
+ if test -n "$GIT_EXIT_OK"
+ then
+ exit $code
+ else
+ echo >&5 "FATAL: Unexpected exit with code $code"
+ exit 1
+ fi
+}
+
+GIT_EXIT_OK=
+trap 'die' EXIT
+
+# The user-facing functions are loaded from a separate file so that
+# test_perf subshells can have them too
+. "$TEST_DIRECTORY/test-lib-functions.sh"
+
+# You are not expected to call test_ok_ and test_failure_ directly, use
+# the test_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 "not ok $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 error "ok $test_count - $@ # TODO known breakage vanished"
+}
+
+test_known_broken_failure_ () {
+ test_broken=$(($test_broken+1))
+ say_color warn "not ok $test_count - $@ # TODO known breakage"
+}
+
+test_debug () {
+ test "$debug" = "" || eval "$1"
+}
+
+match_pattern_list () {
+ arg="$1"
+ shift
+ test -z "$*" && return 1
+ for pattern_
+ do
+ case "$arg" in
+ $pattern_)
+ return 0
+ esac
+ done
+ return 1
+}
+
+maybe_teardown_verbose () {
+ test -z "$verbose_only" && return
+ exec 4>/dev/null 3>/dev/null
+ verbose=
+}
+
+last_verbose=t
+maybe_setup_verbose () {
+ test -z "$verbose_only" && return
+ if match_pattern_list $test_count $verbose_only
+ then
+ exec 4>&2 3>&1
+ # Emit a delimiting blank line when going from
+ # non-verbose to verbose. Within verbose mode the
+ # delimiter is printed by test_expect_*. The choice
+ # of the initial $last_verbose is such that before
+ # test 1, we do not print it.
+ test -z "$last_verbose" && echo >&3 ""
+ verbose=t
+ else
+ exec 4>/dev/null 3>/dev/null
+ verbose=
+ fi
+ last_verbose=$verbose
+}
+
+maybe_teardown_valgrind () {
+ test -z "$GIT_VALGRIND" && return
+ GIT_VALGRIND_ENABLED=
+}
+
+maybe_setup_valgrind () {
+ test -z "$GIT_VALGRIND" && return
+ if test -z "$valgrind_only"
+ then
+ GIT_VALGRIND_ENABLED=t
+ return
+ fi
+ GIT_VALGRIND_ENABLED=
+ if match_pattern_list $test_count $valgrind_only
+ then
+ GIT_VALGRIND_ENABLED=t
+ fi
+}
+
+test_eval_ () {
+ # This is a separate function because some tests use
+ # "return" to end a test_expect_success block early.
+ eval </dev/null >&3 2>&4 "$*"
+}
+
+test_run_ () {
+ test_cleanup=:
+ expecting_failure=$2
+ setup_malloc_check
+ test_eval_ "$1"
+ eval_ret=$?
+ teardown_malloc_check
+
+ if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
+ then
+ setup_malloc_check
+ test_eval_ "$test_cleanup"
+ teardown_malloc_check
+ fi
+ if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
+ then
+ echo ""
+ fi
+ return "$eval_ret"
+}
+
+test_start_ () {
+ test_count=$(($test_count+1))
+ maybe_setup_verbose
+ maybe_setup_valgrind
+}
+
+test_finish_ () {
+ echo >&3 ""
+ maybe_teardown_valgrind
+ maybe_teardown_verbose
+}
+
+test_skip () {
+ to_skip=
+ if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
+ then
+ to_skip=t
+ fi
+ if test -z "$to_skip" && test -n "$test_prereq" &&
+ ! test_have_prereq "$test_prereq"
+ then
+ to_skip=t
+ fi
+ case "$to_skip" in
+ t)
+ of_prereq=
+ if test "$missing_prereq" != "$test_prereq"
+ then
+ of_prereq=" of $test_prereq"
+ fi
+
+ say_color skip >&3 "skipping test: $@"
+ say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
+ : true
+ ;;
+ *)
+ false
+ ;;
+ esac
+}
+
+# stub; perf-lib overrides it
+test_at_end_hook_ () {
+ :
+}
+
+test_done () {
+ GIT_EXIT_OK=t
+
+ # Note: t0000 relies on $HARNESS_ACTIVE disabling the .counts
+ # output file
+ if test -z "$HARNESS_ACTIVE"
+ then
+ test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
+ mkdir -p "$test_results_dir"
+ base=${0##*/}
+ test_results_path="$test_results_dir/${base%.sh}-$$.counts"
+
+ cat >>"$test_results_path" <<-EOF
+ total $test_count
+ success $test_success
+ fixed $test_fixed
+ broken $test_broken
+ failed $test_failure
+
+ EOF
+ fi
+
+ if test "$test_fixed" != 0
+ then
+ say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
+ fi
+ if test "$test_broken" != 0
+ then
+ say_color warn "# still have $test_broken known breakage(s)"
+ fi
+ if test "$test_broken" != 0 || test "$test_fixed" != 0
+ then
+ test_remaining=$(( $test_count - $test_broken - $test_fixed ))
+ msg="remaining $test_remaining test(s)"
+ else
+ test_remaining=$test_count
+ msg="$test_count test(s)"
+ fi
+ case "$test_failure" in
+ 0)
+ # Maybe print SKIP message
+ if test -n "$skip_all" && test $test_count -gt 0
+ then
+ error "Can't use skip_all after running some tests"
+ fi
+ [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
+
+ if test $test_external_has_tap -eq 0
+ then
+ if test $test_remaining -gt 0
+ then
+ say_color pass "# passed all $msg"
+ fi
+ say "1..$test_count$skip_all"
+ fi
+
+ test -d "$remove_trash" &&
+ cd "$(dirname "$remove_trash")" &&
+ rm -rf "$(basename "$remove_trash")"
+
+ test_at_end_hook_
+
+ exit 0 ;;
+
+ *)
+ if test $test_external_has_tap -eq 0
+ then
+ say_color error "# failed $test_failure among $msg"
+ say "1..$test_count"
+ fi
+
+ exit 1 ;;
+
+ esac
+}
+
+if test -n "$valgrind"
+then
+ 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, unless they are shell libraries that
+ # need to be in the exec-path. We will just use "#!" as a
+ # guess for a shell-script, since we have no idea what the user
+ # may have configured as the shell path.
+ test -x "$1" ||
+ test "#!" = "$(head -c 2 <"$1")" ||
+ return;
+
+ base=$(basename "$1")
+ symlink_target=$GIT_BUILD_DIR/$base
+ # do not override scripts
+ if test -x "$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 $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
+ do
+ make_valgrind_symlink $file
+ done
+ # special-case the mergetools loadables
+ make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
+ OLDIFS=$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=$GIT_VALGRIND/bin
+ export GIT_VALGRIND
+ GIT_VALGRIND_MODE="$valgrind"
+ export GIT_VALGRIND_MODE
+ GIT_VALGRIND_ENABLED=t
+ test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
+ export GIT_VALGRIND_ENABLED
+elif test -n "$GIT_TEST_INSTALLED"
+then
+ GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path) ||
+ error "Cannot run git from $GIT_TEST_INSTALLED."
+ PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
+ GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
+else # normal case, use ../bin-wrappers only unless $with_dashes:
+ git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
+ if ! test -x "$git_bin_dir/git"
+ then
+ if test -z "$with_dashes"
+ then
+ say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
+ fi
+ with_dashes=t
+ fi
+ PATH="$git_bin_dir:$PATH"
+ GIT_EXEC_PATH=$GIT_BUILD_DIR
+ if test -n "$with_dashes"
+ then
+ PATH="$GIT_BUILD_DIR:$PATH"
+ fi
+fi
+GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
+unset GIT_CONFIG
+GIT_CONFIG_NOSYSTEM=1
+GIT_ATTR_NOSYSTEM=1
+export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
+
+if test -z "$GIT_TEST_CMP"
+then
+ if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
+ then
+ GIT_TEST_CMP="$DIFF -c"
+ else
+ GIT_TEST_CMP="$DIFF -u"
+ fi
+fi
+
+GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
+export GITPERLLIB
+test -d "$GIT_BUILD_DIR"/templates/blt || {
+ error "You haven't built things yet, have you?"
+}
+
+if ! test -x "$GIT_BUILD_DIR"/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
+
+# Test repository
+TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
+test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
+case "$TRASH_DIRECTORY" in
+/*) ;; # absolute path is good
+ *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
+esac
+test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
+rm -fr "$TRASH_DIRECTORY" || {
+ GIT_EXIT_OK=t
+ echo >&5 "FATAL: Cannot prepare test area"
+ exit 1
+}
+
+HOME="$TRASH_DIRECTORY"
+export HOME
+
+if test -z "$TEST_NO_CREATE_REPO"
+then
+ test_create_repo "$TRASH_DIRECTORY"
+else
+ mkdir -p "$TRASH_DIRECTORY"
+fi
+# Use -P to resolve symlinks in our working directory so that the cwd
+# in subprocesses like git equals our $PWD (for pathname comparisons).
+cd -P "$TRASH_DIRECTORY" || exit 1
+
+this_test=${0##*/}
+this_test=${this_test%%-*}
+if match_pattern_list "$this_test" $GIT_SKIP_TESTS
+then
+ say_color info >&3 "skipping test $this_test altogether"
+ skip_all="skip all tests in $this_test"
+ test_done
+fi
+
+# Provide an implementation of the 'yes' utility
+yes () {
+ if test $# = 0
+ then
+ y=y
+ else
+ y="$*"
+ fi
+
+ while echo "$y"
+ do
+ :
+ 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 MINGW
+ test_set_prereq NOT_CYGWIN
+ test_set_prereq SED_STRIPS_CR
+ test_set_prereq GREP_STRIPS_CR
+ GIT_TEST_CMP=mingw_test_cmp
+ ;;
+*CYGWIN*)
+ test_set_prereq POSIXPERM
+ test_set_prereq EXECKEEPSPID
+ test_set_prereq NOT_MINGW
+ test_set_prereq CYGWIN
+ test_set_prereq SED_STRIPS_CR
+ test_set_prereq GREP_STRIPS_CR
+ ;;
+*)
+ test_set_prereq POSIXPERM
+ test_set_prereq BSLASHPSPEC
+ test_set_prereq EXECKEEPSPID
+ test_set_prereq NOT_MINGW
+ test_set_prereq NOT_CYGWIN
+ ;;
+esac
+
+( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
+test -z "$NO_PERL" && test_set_prereq PERL
+test -z "$NO_PYTHON" && test_set_prereq PYTHON
+test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
+test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
+
+# Can we rely on git's output in the C locale?
+if test -n "$GETTEXT_POISON"
+then
+ GIT_GETTEXT_POISON=YesPlease
+ export GIT_GETTEXT_POISON
+ test_set_prereq GETTEXT_POISON
+else
+ test_set_prereq C_LOCALE_OUTPUT
+fi
+
+# Use this instead of test_cmp to compare files that contain expected and
+# actual output from git commands that can be translated. When running
+# under GETTEXT_POISON this pretends that the command produced expected
+# results.
+test_i18ncmp () {
+ test -n "$GETTEXT_POISON" || test_cmp "$@"
+}
+
+# Use this instead of "grep expected-string actual" to see if the
+# output from a git command that can be translated either contains an
+# expected string, or does not contain an unwanted one. When running
+# under GETTEXT_POISON this pretends that the command produced expected
+# results.
+test_i18ngrep () {
+ if test -n "$GETTEXT_POISON"
+ then
+ : # pretend success
+ elif test "x!" = "x$1"
+ then
+ shift
+ ! grep "$@"
+ else
+ grep "$@"
+ fi
+}
+
+test_lazy_prereq PIPE '
+ # test whether the filesystem supports FIFOs
+ case $(uname -s) in
+ CYGWIN*)
+ false
+ ;;
+ *)
+ rm -f testfifo && mkfifo testfifo
+ ;;
+ esac
+'
+
+test_lazy_prereq SYMLINKS '
+ # test whether the filesystem supports symbolic links
+ ln -s x y && test -h y
+'
+
+test_lazy_prereq CASE_INSENSITIVE_FS '
+ echo good >CamelCase &&
+ echo bad >camelcase &&
+ test "$(cat CamelCase)" != good
+'
+
+test_lazy_prereq UTF8_NFD_TO_NFC '
+ # check whether FS converts nfd unicode to nfc
+ auml=$(printf "\303\244")
+ aumlcdiar=$(printf "\141\314\210")
+ >"$auml" &&
+ case "$(echo *)" in
+ "$aumlcdiar")
+ true ;;
+ *)
+ false ;;
+ esac
+'
+
+test_lazy_prereq AUTOIDENT '
+ sane_unset GIT_AUTHOR_NAME &&
+ sane_unset GIT_AUTHOR_EMAIL &&
+ git var GIT_AUTHOR_IDENT
+'
+
+# When the tests are run as root, permission tests will report that
+# things are writable when they shouldn't be.
+test -w / || test_set_prereq SANITY
+
+GIT_UNZIP=${GIT_UNZIP:-unzip}
+test_lazy_prereq UNZIP '
+ "$GIT_UNZIP" -v
+ test $? -ne 127
+'