notmuch/test/test-lib.sh
Carl Worth a8aa437bbc test: Add simple tests for navigating notmuch-hello and notmuch-search views
We simulate the act of selecting the "inbox" saved search from
notmuch-hello and the act of selecting a desired thread from the
notmuch-search results.

The test for the navigation of notmuch-hello is currently marked as
BROKEN since its output is in the opposite order compared to the
'(notmuch-search "tag:inbox")' test. This question of ordering is a
currently open issue on the notmuch mailing list, so we'll let the
test suite reflect that for now.

Finally, this commit also abstracts some common emacs lisp code,
(waiting for the current buffer's process to complete), into a new
notmuch-test-wait function that is made available to anything calling
test_emacs.
2010-10-22 17:02:07 -07:00

935 lines
21 KiB
Bash

#!/bin/bash
#
# 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/ .
# 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
GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
# Protect ourselves from common misconfiguration to export
# CDPATH into the environment
unset CDPATH
unset GREP_OPTIONS
# Convenience
#
# A regexp to match 5 and 40 hexdigits
_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
_x04='[0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x32="$_x04$_x04$_x04$_x04$_x04$_x04$_x04$_x04"
# Each test should start with something like this, after copyright notices:
#
# test_description='Description of this test...
# This test checks if command xyzzy does the right thing...
# '
# . ./test-lib.sh
[ "x$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 "$1" in
-d|--d|--de|--deb|--debu|--debug)
debug=t; shift ;;
-i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
immediate=t; shift ;;
-l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
-h|--h|--he|--hel|--help)
help=t; shift ;;
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=t; shift ;;
-q|--q|--qu|--qui|--quie|--quiet)
quiet=t; shift ;;
--with-dashes)
with_dashes=t; shift ;;
--no-color)
color=; shift ;;
--no-python)
# noop now...
shift ;;
--va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
valgrind=t; verbose=t; shift ;;
--tee)
shift ;; # was handled already
--root=*)
root=$(expr "z$1" : 'z[^=]*=\(.*\)')
shift ;;
*)
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 " "
printf "$@"
tput sgr0
)
}
else
say_color() {
test -z "$1" && test -n "$quiet" && return
shift
printf " "
printf "$@"
}
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 "Tests ${test_description}"
exit 0
fi
echo $(basename "$0"): "Testing ${test_description}"
exec 5>&1
if test "$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
test_decode_color () {
sed -e 's/.\[1m/<WHITE>/g' \
-e 's/.\[31m/<RED>/g' \
-e 's/.\[32m/<GREEN>/g' \
-e 's/.\[33m/<YELLOW>/g' \
-e 's/.\[34m/<BLUE>/g' \
-e 's/.\[35m/<MAGENTA>/g' \
-e 's/.\[36m/<CYAN>/g' \
-e 's/.\[m/<RESET>/g'
}
q_to_nul () {
perl -pe 'y/Q/\000/'
}
q_to_cr () {
tr Q '\015'
}
append_cr () {
sed -e 's/$/Q/' | tr Q '\015'
}
remove_cr () {
tr '\015' Q | sed -e 's/Q$//'
}
# Notmuch helper functions
increment_mtime_amount=0
increment_mtime ()
{
dir="$1"
increment_mtime_amount=$((increment_mtime_amount + 1))
touch -d "+${increment_mtime_amount} seconds" "$dir"
}
# Generate a new message in the mail directory, with a unique message
# ID and subject. The message is not added to the index.
#
# After this function returns, the filename of the generated message
# is available as $gen_msg_filename and the message ID is available as
# $gen_msg_id .
#
# This function supports named parameters with the bash syntax for
# assigning a value to an associative array ([name]=value). The
# supported parameters are:
#
# [dir]=directory/of/choice
#
# Generate the message in directory 'directory/of/choice' within
# the mail store. The directory will be created if necessary.
#
# [body]=text
#
# Text to use as the body of the email message
#
# '[from]="Some User <user@example.com>"'
# '[to]="Some User <user@example.com>"'
# '[subject]="Subject of email message"'
# '[date]="RFC 822 Date"'
#
# Values for email headers. If not provided, default values will
# be generated instead.
#
# '[cc]="Some User <user@example.com>"'
# [reply-to]=some-address
# [in-reply-to]=<message-id>
# [references]=<message-id>
# [content-type]=content-type-specification
# '[header]=full header line, including keyword'
#
# Additional values for email headers. If these are not provided
# then the relevant headers will simply not appear in the
# message.
#
# '[id]=message-id'
#
# Controls the message-id of the created message.
gen_msg_cnt=0
gen_msg_filename=""
gen_msg_id=""
generate_message ()
{
# This is our (bash-specific) magic for doing named parameters
local -A template="($@)"
local additional_headers
gen_msg_cnt=$((gen_msg_cnt + 1))
gen_msg_name=msg-$(printf "%03d" $gen_msg_cnt)
if [ -z "${template[id]}" ]; then
gen_msg_id="${gen_msg_name}@notmuch-test-suite"
else
gen_msg_id="${template[id]}"
fi
if [ -z "${template[dir]}" ]; then
gen_msg_filename="${MAIL_DIR}/$gen_msg_name"
else
gen_msg_filename="${MAIL_DIR}/${template[dir]}/$gen_msg_name"
mkdir -p "$(dirname "$gen_msg_filename")"
fi
if [ -z "${template[body]}" ]; then
template[body]="This is just a test message (#${gen_msg_cnt})"
fi
if [ -z "${template[from]}" ]; then
template[from]="Notmuch Test Suite <test_suite@notmuchmail.org>"
fi
if [ -z "${template[to]}" ]; then
template[to]="Notmuch Test Suite <test_suite@notmuchmail.org>"
fi
if [ -z "${template[subject]}" ]; then
template[subject]="Test message #${gen_msg_cnt}"
fi
if [ -z "${template[date]}" ]; then
template[date]="Tue, 05 Jan 2001 15:43:57 -0000"
fi
additional_headers=""
if [ ! -z "${template[header]}" ]; then
additional_headers="${template[header]}
${additional_headers}"
fi
if [ ! -z "${template[reply-to]}" ]; then
additional_headers="Reply-To: ${template[reply-to]}
${additional_headers}"
fi
if [ ! -z "${template[in-reply-to]}" ]; then
additional_headers="In-Reply-To: ${template[in-reply-to]}
${additional_headers}"
fi
if [ ! -z "${template[cc]}" ]; then
additional_headers="Cc: ${template[cc]}
${additional_headers}"
fi
if [ ! -z "${template[references]}" ]; then
additional_headers="References: ${template[references]}
${additional_headers}"
fi
if [ ! -z "${template[content-type]}" ]; then
additional_headers="Content-Type: ${template[content-type]}
${additional_headers}"
fi
cat <<EOF >"$gen_msg_filename"
From: ${template[from]}
To: ${template[to]}
Message-Id: <${gen_msg_id}>
Subject: ${template[subject]}
Date: ${template[date]}
${additional_headers}
${template[body]}
EOF
# Ensure that the mtime of the containing directory is updated
increment_mtime "$(dirname "${gen_msg_filename}")"
}
# Generate a new message and add it to the database.
#
# All of the arguments and return values supported by generate_message
# are also supported here, so see that function for details.
add_message ()
{
generate_message "$@" &&
notmuch new > /dev/null
}
# Generate a corpus of email and add it to the database.
#
# This corpus is fixed, (it happens to be 50 messages from early in
# the history of the notmuch mailing list), which allows for reliably
# testing commands that need to operate on a not-totally-trivial
# number of messages.
add_email_corpus ()
{
rm -rf ${MAIL_DIR}
if [ -d ../corpus.mail ]; then
cp -a ../corpus.mail ${MAIL_DIR}
else
cp -a ../corpus ${MAIL_DIR}
notmuch new >/dev/null
cp -a ${MAIL_DIR} ../corpus.mail
fi
}
test_begin_subtest ()
{
test_subtest_name="$1"
}
# Pass test if two arguments match
#
# Note: Unlike all other test_expect_* functions, this function does
# not accept a test name. Instead, the caller should call
# test_begin_subtest before calling this function in order to set the
# name.
test_expect_equal ()
{
test "$#" = 3 && { prereq=$1; shift; } || prereq=
test "$#" = 2 ||
error "bug in the test script: not 2 or 3 parameters to test_expect_equal"
output="$1"
expected="$2"
if ! test_skip "$@"
then
if [ "$output" = "$expected" ]; then
test_ok_ "$test_subtest_name"
else
testname=$this_test.$test_count
echo "$expected" > $testname.expected
echo "$output" > $testname.output
test_failure_ "$test_subtest_name" "$(diff -u $testname.expected $testname.output)"
fi
fi
}
test_expect_equal_failure ()
{
test "$#" = 3 && { prereq=$1; shift; } || prereq=
test "$#" = 2 ||
error "bug in the test script: not 2 or 3 parameters to test_expect_equal"
output="$1"
expected="$2"
if ! test_skip "$@"
then
if [ "$output" = "$expected" ]; then
test_known_broken_ok_ "$test_subtest_name"
else
test_known_broken_failure_ "$test_subtest_name"
fi
fi
}
NOTMUCH_NEW ()
{
notmuch new | grep -v -E -e '^Processed [0-9]*( total)? file|Found [0-9]* total file'
}
notmuch_search_sanitize ()
{
sed -r -e 's/("?thread"?: ?)("?)................("?)/\1\2XXX\3/'
}
NOTMUCH_SHOW_FILENAME_SQUELCH='s,filename:.*/mail,filename:/XXX/mail,'
notmuch_show_sanitize ()
{
sed -e "$NOTMUCH_SHOW_FILENAME_SQUELCH"
}
# End of notmuch helper functions
# Use test_set_prereq to tell that a particular prerequisite is available.
# The prerequisite can later be checked for in two ways:
#
# - Explicitly using test_have_prereq.
#
# - Implicitly by specifying the prerequisite tag in the calls to
# test_expect_{success,failure,code}.
#
# The single parameter is the prerequisite tag (a simple word, in all
# capital letters by convention).
test_set_prereq () {
satisfied="$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 pass "%-6s" "PASS"
echo " $@"
}
test_failure_ () {
test_failure=$(($test_failure + 1))
say_color error "%-6s" "FAIL"
echo " $1"
shift
echo "$@" | sed -e 's/^/ /'
test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
}
test_known_broken_ok_ () {
test_fixed=$(($test_fixed+1))
say_color pass "%-6s" "FIXED"
echo " $@"
}
test_known_broken_failure_ () {
test_broken=$(($test_broken+1))
say_color pass "%-6s" "BROKEN"
echo " $@"
}
test_debug () {
test "$debug" = "" || eval "$1"
}
test_run_ () {
test_cleanup=:
eval >&3 2>&4 "$1"
eval_ret=$?
eval >&3 2>&4 "$test_cleanup"
return 0
}
test_skip () {
test_count=$(($test_count+1))
to_skip=
for skp in $NOTMUCH_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 "%-6s" "SKIP"
echo " $1"
: true
;;
*)
false
;;
esac
}
test_expect_failure () {
test "$#" = 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
test_run_ "$2"
if [ "$?" = 0 -a "$eval_ret" = 0 ]
then
test_known_broken_ok_ "$1"
else
test_known_broken_failure_ "$1"
fi
fi
}
test_expect_success () {
test "$#" = 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
test_run_ "$2"
if [ "$?" = 0 -a "$eval_ret" = 0 ]
then
test_ok_ "$1"
else
test_failure_ "$@"
fi
fi
}
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
test_run_ "$3"
if [ "$?" = 0 -a "$eval_ret" = "$1" ]
then
test_ok_ "$2"
else
test_failure_ "$@"
fi
fi
}
# 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
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 "$@"
}
# This function can be used to schedule some commands to be run
# unconditionally at the end of the test to restore sanity:
#
# test_expect_success 'test core.capslock' '
# git config core.capslock true &&
# test_when_finished "git config --unset core.capslock" &&
# hello world
# '
#
# That would be roughly equivalent to
#
# test_expect_success 'test core.capslock' '
# git config core.capslock true &&
# hello world
# git config --unset core.capslock
# '
#
# except that the greeting and config --unset must both succeed for
# the test to pass.
test_when_finished () {
test_cleanup="{ $*
} && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
}
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 "" >> $test_results_path
echo
if [ "$test_failure" = "0" ]; then
rm -rf "$remove_tmp"
exit 0
else
exit 1
fi
}
test_emacs () {
emacs_code="$1"
emacs --batch --no-site-file --directory ../../emacs --load notmuch.el \
--eval "(defun notmuch-test-wait ()
(while (get-buffer-process (current-buffer))
(sleep-for 0.1)))" \
--eval "(progn (set-frame-width (window-frame (get-buffer-window)) 80) ${emacs_code})"
}
find_notmuch_path ()
{
dir="$1"
while [ -n "$dir" ]; do
bin="$dir/notmuch"
if [ -x "$bin" ]; then
echo "$dir"
return
fi
dir="$(dirname "$dir")"
if [ "$dir" = "/" ]; then
break
fi
done
}
# Test the binaries we have just built. The tests are kept in
# test/ subdirectory and are run in 'trash directory' subdirectory.
TEST_DIRECTORY=$(pwd)
if test -n "$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
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/$base" || exit
}
# override notmuch executable in TEST_DIRECTORY/..
GIT_VALGRIND=$TEST_DIRECTORY/valgrind
mkdir -p "$GIT_VALGRIND"/bin
make_valgrind_symlink $TEST_DIRECTORY/../notmuch
OLDIFS=$IFS
IFS=:
for path in $PATH
do
ls "$path"/notmuch 2> /dev/null |
while read file
do
make_valgrind_symlink "$file"
done
done
IFS=$OLDIFS
PATH=$GIT_VALGRIND/bin:$PATH
GIT_EXEC_PATH=$GIT_VALGRIND/bin
export GIT_VALGRIND
else # normal case
notmuch_path=`find_notmuch_path "$TEST_DIRECTORY"`
test -n "$notmuch_path" && PATH="$notmuch_path:$PATH"
fi
export PATH
# Test repository
test="tmp.$(basename "$0" .sh)"
test -n "$root" && test="$root/$test"
case "$test" in
/*) TMP_DIRECTORY="$test" ;;
*) TMP_DIRECTORY="$TEST_DIRECTORY/$test" ;;
esac
test ! -z "$debug" || remove_tmp=$TMP_DIRECTORY
rm -fr "$test" || {
GIT_EXIT_OK=t
echo >&5 "FATAL: Cannot prepare test area"
exit 1
}
MAIL_DIR="${TMP_DIRECTORY}/mail"
export NOTMUCH_CONFIG="${TMP_DIRECTORY}/notmuch-config"
mkdir -p "${test}"
mkdir -p "${MAIL_DIR}"
cat <<EOF >"${NOTMUCH_CONFIG}"
[database]
path=${MAIL_DIR}
[user]
name=Notmuch Test Suite
primary_email=test_suite@notmuchmail.org
other_email=test_suite_other@notmuchmail.org;test_suite@otherdomain.org
EOF
# 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" || error "Cannot setup test environment"
this_test=${0##*/}
this_test=${this_test%%-*}
for skp in $NOTMUCH_SKIP_TESTS
do
to_skip=
for skp in $NOTMUCH_SKIP_TESTS
do
case "$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
# 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 POSIXPERM
test_set_prereq BSLASHPSPEC
test_set_prereq EXECKEEPSPID
;;
esac
test -z "$NO_PERL" && test_set_prereq PERL
test -z "$NO_PYTHON" && test_set_prereq PYTHON
# 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