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git-commit-vandalism/t/test-lib.sh
Jeff King bb79af9d09 t/test-lib: introduce --chain-lint option 
It's easy to miss an "&&"-chain in a test script, like:

  test_expect_success 'check something important' '
	cmd1 &&
	cmd2
	cmd3
  '

The test harness will notice if cmd3 fails, but a failure of
cmd1 or cmd2 will go unnoticed, as their exit status is lost
after cmd3 runs.

The toy example above is easy to spot because the "cmds" are
all the same length, but real code is much more complicated.
It's also difficult to detect these situations by statically
analyzing the shell code with regexps (like the
check-non-portable-shell script does); there's too much
context required to know whether a &&-chain is appropriate
on a given line or not.

This patch instead lets the shell check each test by
sticking a command with a specific and unusual return code
at the top of each test, like:

  (exit 117) &&
  cmd1 &&
  cmd2
  cmd3

In a well-formed test, the non-zero exit from the first
command prevents any of the rest from being run, and the
test's exit code is 117. In a bad test (like the one above),
the 117 is lost, and cmd3 is run.

When we encounter a failure of this check, we abort the test
script entirely. For one thing, we have no clue which subset
of the commands in the test snippet were actually run.
Running further tests would be pointless, because we're now
in an unknown state. And two, this is not a "test failure"
in the traditional sense. The test script is buggy, not the
code it is testing. We should be able to fix these problems
in the script once, and not have them come back later as a
regression in git's code.

After checking a test snippet for --chain-lint, we do still
run the test itself.  We could actually have a pure-lint
mode which just checks each test, but there are a few
reasons not to. One, because the tests are executing
arbitrary code, which could impact the later environment
(e.g., that could impact which set of tests we run at all).
And two, because a pure-lint mode would still be expensive
to run, because a significant amount of code runs outside of
the test_expect_* blocks.  Instead, this option is designed
to be used as part of a normal test suite run, where it adds
very little overhead.

Turning on this option detects quite a few problems in
existing tests, which will be fixed in subsequent patches.
However, there are a number of places it cannot reach:

 - it cannot find a failure to break out of loops on error,
   like:

     cmd1 &&
     for i in a b c; do
	     cmd2 $i
     done &&
     cmd3

   which will not notice failures of "cmd2 a" or "cmd b"

 - it cannot find a missing &&-chain inside a block or
   subfunction, like:

     foo () {
	     cmd1
	     cmd2
     }

     foo &&
     bar

   which will not notice a failure of cmd1.

 - it only checks tests that you run; every platform will
   have some tests skipped due to missing prequisites,
   so it's impossible to say from one run that the test
   suite is free of broken &&-chains. However, all tests get
   run by _somebody_, so eventually we will notice problems.

 - it does not operate on test_when_finished or prerequisite
   blocks. It could, but these tends to be much shorter and
   less of a problem, so I punted on them in this patch.

This patch was inspired by an earlier patch by Jonathan
Nieder:

  http://article.gmane.org/gmane.comp.version-control.git/235913

This implementation and all bugs are mine.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-20 10:20:12 -07:00

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# Test framework for git. See t/README for usage.
#
# 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 $ok = join("|", qw(
TRACE
DEBUG
USE_LOOKUP
TEST
.*_TEST
PROVE
VALGRIND
UNZIP
PERF_
CURL_VERBOSE
));
my @vars = grep(/^GIT_/ && !/^GIT_($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
# Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
GIT_TRACE_BARE=1
export GIT_TRACE_BARE
if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
then
GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
export GIT_INDEX_VERSION
fi
# 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
: ${ASAN_OPTIONS=detect_leaks=0}
export ASAN_OPTIONS
# 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$_x05"
# Zero SHA-1
_z40=0000000000000000000000000000000000000000
# Line feed
LF='
'
# UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
# when case-folding filenames
u200c=$(printf '\342\200\214')
export _x05 _x40 _z40 LF u200c
# 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
unset color
while test "$#" -ne 0
do
case "$1" in
-d|--d|--de|--deb|--debu|--debug)
debug=t; shift ;;
-i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
immediate=t; shift ;;
-l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
-r)
shift; test "$#" -ne 0 || {
echo 'error: -r requires an argument' >&2;
exit 1;
}
run_list=$1; shift ;;
--run=*)
run_list=$(expr "z$1" : 'z[^=]*=\(.*\)'); 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 ;;
--chain-lint)
GIT_TEST_CHAIN_LINT=1
shift ;;
--no-chain-lint)
GIT_TEST_CHAIN_LINT=0
shift ;;
-x)
trace=t
verbose=t
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
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
printf '%s\n' "$test_description"
exit 0
fi
exec 5>&1
exec 6<&0
if test "$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 - $1"
shift
printf '%s\n' "$*" | 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
}
match_test_selector_list () {
title="$1"
shift
arg="$1"
shift
test -z "$1" && return 0
# Both commas and whitespace are accepted as separators.
OLDIFS=$IFS
IFS=' ,'
set -- $1
IFS=$OLDIFS
# If the first selector is negative we include by default.
include=
case "$1" in
!*) include=t ;;
esac
for selector
do
orig_selector=$selector
positive=t
case "$selector" in
!*)
positive=
selector=${selector##?}
;;
esac
test -z "$selector" && continue
case "$selector" in
*-*)
if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
then
echo "error: $title: invalid non-numeric in range" \
"start: '$orig_selector'" >&2
exit 1
fi
if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
then
echo "error: $title: invalid non-numeric in range" \
"end: '$orig_selector'" >&2
exit 1
fi
;;
*)
if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
then
echo "error: $title: invalid non-numeric in test" \
"selector: '$orig_selector'" >&2
exit 1
fi
esac
# Short cut for "obvious" cases
test -z "$include" && test -z "$positive" && continue
test -n "$include" && test -n "$positive" && continue
case "$selector" in
-*)
if test $arg -le ${selector#-}
then
include=$positive
fi
;;
*-)
if test $arg -ge ${selector%-}
then
include=$positive
fi
;;
*-*)
if test ${selector%%-*} -le $arg \
&& test $arg -le ${selector#*-}
then
include=$positive
fi
;;
*)
if test $arg -eq $selector
then
include=$positive
fi
;;
esac
done
test -n "$include"
}
maybe_teardown_verbose () {
test -z "$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 $valgrind_only
then
GIT_VALGRIND_ENABLED=t
fi
}
# This is a separate function because some tests use
# "return" to end a test_expect_success block early
# (and we want to make sure we run any cleanup like
# "set +x").
test_eval_inner_ () {
# Do not add anything extra (including LF) after '$*'
eval "
test \"$trace\" = t && set -x
$*"
}
test_eval_ () {
# We run this block with stderr redirected to avoid extra cruft
# during a "-x" trace. Once in "set -x" mode, we cannot prevent
# the shell from printing the "set +x" to turn it off (nor the saving
# of $? before that). But we can make sure that the output goes to
# /dev/null.
#
# The test itself is run with stderr put back to &4 (so either to
# /dev/null, or to the original stderr if --verbose was used).
{
test_eval_inner_ "$@" </dev/null >&3 2>&4
test_eval_ret_=$?
if test "$trace" = t
then
set +x
if test "$test_eval_ret_" != 0
then
say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
fi
fi
} 2>/dev/null
return $test_eval_ret_
}
test_run_ () {
test_cleanup=:
expecting_failure=$2
if test "${GIT_TEST_CHAIN_LINT:-0}" != 0; then
# 117 is magic because it is unlikely to match the exit
# code of other programs
test_eval_ "(exit 117) && $1"
if test "$?" != 117; then
error "bug in the test script: broken &&-chain: $1"
fi
fi
setup_malloc_check
test_eval_ "$1"
eval_ret=$?
teardown_malloc_check
if test -z "$immediate" || test $eval_ret = 0 ||
test -n "$expecting_failure" && test "$test_cleanup" != ":"
then
setup_malloc_check
test_eval_ "$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=
skipped_reason=
if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
then
to_skip=t
skipped_reason="GIT_SKIP_TESTS"
fi
if test -z "$to_skip" && test -n "$test_prereq" &&
! test_have_prereq "$test_prereq"
then
to_skip=t
of_prereq=
if test "$missing_prereq" != "$test_prereq"
then
of_prereq=" of $test_prereq"
fi
skipped_reason="missing $missing_prereq${of_prereq}"
fi
if test -z "$to_skip" && test -n "$run_list" &&
! match_test_selector_list '--run' $test_count "$run_list"
then
to_skip=t
skipped_reason="--run"
fi
case "$to_skip" in
t)
say_color skip >&3 "skipping test: $@"
say_color skip "ok $test_count # skip $1 ($skipped_reason)"
: true
;;
*)
false
;;
esac
}
# stub; perf-lib overrides it
test_at_end_hook_ () {
:
}
test_done () {
GIT_EXIT_OK=t
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 $test_count -gt 0
then
error "Can't use skip_all after running some tests"
fi
test -z "$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.
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
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="$TRASH_DIRECTORY"
GNUPGHOME="$HOME/gnupg-home-not-used"
export HOME GNUPGHOME
# run the tput tests *after* changing HOME (in case ncurses needs
# ~/.terminfo for $TERM)
test -n "${color+set}" || test "x$ORIGINAL_TERM" != "xdumb" && (
TERM=$ORIGINAL_TERM &&
export TERM &&
test -t 1 &&
tput bold >/dev/null 2>&1 &&
tput setaf 1 >/dev/null 2>&1 &&
tput sgr0 >/dev/null 2>&1
) &&
color=t
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" "$*"
}
fi
if test -z "$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 NATIVE_CRLF
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 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
;;
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 $(uname -s) in
CYGWIN*)
false
;;
*)
rm -f testfifo && mkfifo testfifo
;;
esac
'
test_lazy_prereq SYMLINKS '
# test whether the filesystem supports symbolic links
ln -s x y && test -h y
'
test_lazy_prereq FILEMODE '
test "$(git config --bool core.filemode)" = true
'
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
'
test_lazy_prereq EXPENSIVE '
test -n "$GIT_TEST_LONG"
'
test_lazy_prereq USR_BIN_TIME '
test -x /usr/bin/time
'
test_lazy_prereq NOT_ROOT '
uid=$(id -u) &&
test "$uid" != 0
'
# On a filesystem that lacks SANITY, a file can be deleted even if
# the containing directory doesn't have write permissions, or a file
# can be accessed even if the containing directory doesn't have read
# or execute permissions, causing our tests that validate that Git
# works sensibly in such situations.
test_lazy_prereq SANITY '
mkdir SANETESTD.1 SANETESTD.2 &&
chmod +w SANETESTD.1 SANETESTD.2 &&
>SANETESTD.1/x 2>SANETESTD.2/x &&
chmod -w SANETESTD.1 &&
chmod -rx SANETESTD.2 ||
error "bug in test sript: cannot prepare SANETESTD"
! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
status=$?
chmod +rwx SANETESTD.1 SANETESTD.2 &&
rm -rf SANETESTD.1 SANETESTD.2 ||
error "bug in test sript: cannot clean SANETESTD"
return $status
'
GIT_UNZIP=${GIT_UNZIP:-unzip}
test_lazy_prereq UNZIP '
"$GIT_UNZIP" -v
test $? -ne 127
'
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