git-commit-vandalism/t/test-lib.sh
Jeff King 2d86a96220 t: avoid sed-based chain-linting in some expensive cases
Commit 878f988350 (t/test-lib: teach --chain-lint to detect broken
&&-chains in subshells, 2018-07-11) introduced additional chain-lint
tests which add an extra "sed" pipeline to each test we run. This has a
measurable impact on runtime. Here are timings with and without a new
environment variable (added by this patch) that lets you disable just
the additional sed-based chain-lint tests:

  Benchmark #1: GIT_TEST_CHAIN_LINT_HARDER=1 make test
    Time (mean ± σ):     64.202 s ±  1.030 s    [User: 622.469 s, System: 301.402 s]
    Range (min … max):   61.571 s … 65.662 s    10 runs

  Benchmark #2: GIT_TEST_CHAIN_LINT_HARDER=0 make test
    Time (mean ± σ):     57.591 s ±  0.333 s    [User: 529.368 s, System: 270.618 s]
    Range (min … max):   57.143 s … 58.309 s    10 runs

  Summary
    'GIT_TEST_CHAIN_LINT_HARDER=0 make test' ran
      1.11 ± 0.02 times faster than 'GIT_TEST_CHAIN_LINT_HARDER=1 make test'

Of course those extra lint checks are doing something useful, so paying
a few extra seconds (at least on Linux) isn't so bad (though note the
CPU time; we're bounded in our parallel run here by the slowest test, so
it really is ~120s of CPU improvement).

But we can observe that there are some test scripts where they produce a
much stronger effect, and provide less value. In t0027 and t3070 we run
a very large number of small tests, all driven by a series of
functions/loops which are filling in the test bodies. There we get much
less bang for our buck in terms of bug-finding versus CPU cost.

This patch introduces a mechanism for controlling when those extra
lint checks are run, at two levels:

  - a user can ask to disable or to force-enable the checks by setting
    GIT_TEST_CHAIN_LINT_HARDER

  - if the user hasn't specified a preference, individual scripts can
    disable the checks by setting GIT_TEST_CHAIN_LINT_HARDER_DEFAULT;
    scripts which don't set that get the current behavior of enabling
    them.

In addition, this patch flips the default for t0027 and t3070's
mass-generated sections to disable the extra checks. Here are the timing
results for t0027:

  Benchmark #1: GIT_TEST_CHAIN_LINT_HARDER=1 ./t0027-auto-crlf.sh
    Time (mean ± σ):     17.078 s ±  0.848 s    [User: 14.878 s, System: 7.075 s]
    Range (min … max):   15.952 s … 18.421 s    10 runs

  Benchmark #2: GIT_TEST_CHAIN_LINT_HARDER=0 ./t0027-auto-crlf.sh
    Time (mean ± σ):      9.063 s ±  0.759 s    [User: 7.890 s, System: 3.362 s]
    Range (min … max):    7.747 s … 10.619 s    10 runs

  Benchmark #3: ./t0027-auto-crlf.sh
    Time (mean ± σ):      9.186 s ±  0.881 s    [User: 7.957 s, System: 3.427 s]
    Range (min … max):    7.796 s … 10.498 s    10 runs

  Summary
    'GIT_TEST_CHAIN_LINT_HARDER=0 ./t0027-auto-crlf.sh' ran
      1.01 ± 0.13 times faster than './t0027-auto-crlf.sh'
      1.88 ± 0.18 times faster than 'GIT_TEST_CHAIN_LINT_HARDER=1 ./t0027-auto-crlf.sh'

We can see that disabling the checks for the whole script buys us an
almost 2x speedup. But the new default behavior, disabling them only for
the mass-generated part, gets us most of that speedup (but still leaves
the checks on for further manual tests people might write).

  As a side note, I'd caution about comparing runtimes and CPU seconds
  between this timing and the earlier "make test" one. In "make test",
  we're running a lot of scripts in parallel, so the CPU is throttling
  down (and thus a CPU second saved here would count for more during a
  parallel run; the same work takes more CPU seconds there).

We get similar results for t3070:

  Benchmark #1: GIT_TEST_CHAIN_LINT_HARDER=1 ./t3070-wildmatch.sh
    Time (mean ± σ):     20.054 s ±  3.967 s    [User: 16.003 s, System: 8.286 s]
    Range (min … max):   11.891 s … 23.671 s    10 runs

  Benchmark #2: GIT_TEST_CHAIN_LINT_HARDER=0 ./t3070-wildmatch.sh
    Time (mean ± σ):     12.399 s ±  2.256 s    [User: 7.542 s, System: 5.342 s]
    Range (min … max):    9.606 s … 15.727 s    10 runs

  Benchmark #3: ./t3070-wildmatch.sh
    Time (mean ± σ):     10.726 s ±  3.476 s    [User: 6.790 s, System: 4.365 s]
    Range (min … max):    5.444 s … 15.376 s    10 runs

  Summary
    './t3070-wildmatch.sh' ran
      1.16 ± 0.43 times faster than 'GIT_TEST_CHAIN_LINT_HARDER=0 ./t3070-wildmatch.sh'
      1.87 ± 0.71 times faster than 'GIT_TEST_CHAIN_LINT_HARDER=1 ./t3070-wildmatch.sh'

Again, we get almost a 2x speedup disabling these. In this case, there
are no tests not covered by the script's "default to disable" behavior,
so the second two benchmarks should be the same (and while they do
differ, you can see the variance is quite high but they're within one
standard deviation).

So it seems like for these two scripts, at least, disabling the extra
checks is a reasonable tradeoff. Sadly, the overall runtime of "make
test" on my system doesn't get much faster. But that's because we're
mostly limited by the cost of the single biggest test. Here are the
top-5 tests by wall-clock time from a parallel run, before my patch:

  57.9192368984222 t9001-send-email.sh
  45.6329638957977 t0027-auto-crlf.sh
  32.5278220176697 t3070-wildmatch.sh
  22.2701289653778 t7610-mergetool.sh
  20.8635759353638 t1701-racy-split-index.sh

And after:

  57.1476998329163 t9001-send-email.sh
  33.776211977005 t0027-auto-crlf.sh
  21.3116669654846 t7610-mergetool.sh
  20.7748689651489 t1701-racy-split-index.sh
  19.6957249641418 t7112-reset-submodule.sh

We dropped 12s from t0027, and t3070 dropped off our list entirely at
around 16s. In both cases we're bound by t9001, but its slowness is
due to the actual tests, so we'll have to deal with it in a different
way. But this reduces overall CPU, and means that dealing with t9001 (by
improving the speed of send-email or splitting it apart) will let us
reduce our overall runtime even on multi-core machines.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-13 15:50:44 +09:00

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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/ .
# 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"/..
# If we were built with ASAN, it may complain about leaks
# of program-lifetime variables. Disable it by default to lower
# the noise level. This needs to happen at the start of the script,
# before we even do our "did we build git yet" check (since we don't
# want that one to complain to stderr).
: ${ASAN_OPTIONS=detect_leaks=0:abort_on_error=1}
export ASAN_OPTIONS
# If LSAN is in effect we _do_ want leak checking, but we still
# want to abort so that we notice the problems.
: ${LSAN_OPTIONS=abort_on_error=1}
export LSAN_OPTIONS
if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
then
echo >&2 'error: GIT-BUILD-OPTIONS missing (has Git been built?).'
exit 1
fi
. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
export PERL_PATH SHELL_PATH
# Disallow the use of abbreviated options in the test suite by default
if test -z "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS}"
then
GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
fi
################################################################
# It appears that people try to run tests without building...
"${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
if test $? != 1
then
if test -n "$GIT_TEST_INSTALLED"
then
echo >&2 "error: there is no working Git at '$GIT_TEST_INSTALLED'"
else
echo >&2 'error: you do not seem to have built git yet.'
fi
exit 1
fi
store_arg_to=
opt_required_arg=
# $1: option string
# $2: name of the var where the arg will be stored
mark_option_requires_arg () {
if test -n "$opt_required_arg"
then
echo "error: options that require args cannot be bundled" \
"together: '$opt_required_arg' and '$1'" >&2
exit 1
fi
opt_required_arg=$1
store_arg_to=$2
}
parse_option () {
local opt="$1"
case "$opt" in
-d|--d|--de|--deb|--debu|--debug)
debug=t ;;
-i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
immediate=t ;;
-l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
GIT_TEST_LONG=t; export GIT_TEST_LONG ;;
-r)
mark_option_requires_arg "$opt" run_list
;;
--run=*)
run_list=${opt#--*=} ;;
-h|--h|--he|--hel|--help)
help=t ;;
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=t ;;
--verbose-only=*)
verbose_only=${opt#--*=}
;;
-q|--q|--qu|--qui|--quie|--quiet)
# Ignore --quiet under a TAP::Harness. Saying how many tests
# passed without the ok/not ok details is always an error.
test -z "$HARNESS_ACTIVE" && quiet=t ;;
--with-dashes)
with_dashes=t ;;
--no-bin-wrappers)
no_bin_wrappers=t ;;
--no-color)
color= ;;
--va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
valgrind=memcheck
tee=t
;;
--valgrind=*)
valgrind=${opt#--*=}
tee=t
;;
--valgrind-only=*)
valgrind_only=${opt#--*=}
tee=t
;;
--tee)
tee=t ;;
--root=*)
root=${opt#--*=} ;;
--chain-lint)
GIT_TEST_CHAIN_LINT=1 ;;
--no-chain-lint)
GIT_TEST_CHAIN_LINT=0 ;;
-x)
trace=t ;;
-V|--verbose-log)
verbose_log=t
tee=t
;;
--write-junit-xml)
write_junit_xml=t
;;
--stress)
stress=t ;;
--stress=*)
echo "error: --stress does not accept an argument: '$opt'" >&2
echo "did you mean --stress-jobs=${opt#*=} or --stress-limit=${opt#*=}?" >&2
exit 1
;;
--stress-jobs=*)
stress=t;
stress_jobs=${opt#--*=}
case "$stress_jobs" in
*[!0-9]*|0*|"")
echo "error: --stress-jobs=<N> requires the number of jobs to run" >&2
exit 1
;;
*) # Good.
;;
esac
;;
--stress-limit=*)
stress=t;
stress_limit=${opt#--*=}
case "$stress_limit" in
*[!0-9]*|0*|"")
echo "error: --stress-limit=<N> requires the number of repetitions" >&2
exit 1
;;
*) # Good.
;;
esac
;;
*)
echo "error: unknown test option '$opt'" >&2; exit 1 ;;
esac
}
# Parse options while taking care to leave $@ intact, so we will still
# have all the original command line options when executing the test
# script again for '--tee' and '--verbose-log' later.
for opt
do
if test -n "$store_arg_to"
then
eval $store_arg_to=\$opt
store_arg_to=
opt_required_arg=
continue
fi
case "$opt" in
--*|-?)
parse_option "$opt" ;;
-?*)
# bundled short options must be fed separately to parse_option
opt=${opt#-}
while test -n "$opt"
do
extra=${opt#?}
this=${opt%$extra}
opt=$extra
parse_option "-$this"
done
;;
*)
echo "error: unknown test option '$opt'" >&2; exit 1 ;;
esac
done
if test -n "$store_arg_to"
then
echo "error: $opt_required_arg requires an argument" >&2
exit 1
fi
if test -n "$valgrind_only"
then
test -z "$valgrind" && valgrind=memcheck
test -z "$verbose" && verbose_only="$valgrind_only"
elif test -n "$valgrind"
then
test -z "$verbose_log" && verbose=t
fi
if test -n "$stress"
then
verbose=t
trace=t
immediate=t
fi
TEST_STRESS_JOB_SFX="${GIT_TEST_STRESS_JOB_NR:+.stress-$GIT_TEST_STRESS_JOB_NR}"
TEST_NAME="$(basename "$0" .sh)"
TEST_NUMBER="${TEST_NAME%%-*}"
TEST_NUMBER="${TEST_NUMBER#t}"
TEST_RESULTS_DIR="$TEST_OUTPUT_DIRECTORY/test-results"
TEST_RESULTS_BASE="$TEST_RESULTS_DIR/$TEST_NAME$TEST_STRESS_JOB_SFX"
TRASH_DIRECTORY="trash directory.$TEST_NAME$TEST_STRESS_JOB_SFX"
test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
case "$TRASH_DIRECTORY" in
/*) ;; # absolute path is good
*) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
esac
# If --stress was passed, run this test repeatedly in several parallel loops.
if test "$GIT_TEST_STRESS_STARTED" = "done"
then
: # Don't stress test again.
elif test -n "$stress"
then
if test -n "$stress_jobs"
then
job_count=$stress_jobs
elif test -n "$GIT_TEST_STRESS_LOAD"
then
job_count="$GIT_TEST_STRESS_LOAD"
elif job_count=$(getconf _NPROCESSORS_ONLN 2>/dev/null) &&
test -n "$job_count"
then
job_count=$((2 * $job_count))
else
job_count=8
fi
mkdir -p "$TEST_RESULTS_DIR"
stressfail="$TEST_RESULTS_BASE.stress-failed"
rm -f "$stressfail"
stress_exit=0
trap '
kill $job_pids 2>/dev/null
wait
stress_exit=1
' TERM INT HUP
job_pids=
job_nr=0
while test $job_nr -lt "$job_count"
do
(
GIT_TEST_STRESS_STARTED=done
GIT_TEST_STRESS_JOB_NR=$job_nr
export GIT_TEST_STRESS_STARTED GIT_TEST_STRESS_JOB_NR
trap '
kill $test_pid 2>/dev/null
wait
exit 1
' TERM INT
cnt=1
while ! test -e "$stressfail" &&
{ test -z "$stress_limit" ||
test $cnt -le $stress_limit ; }
do
$TEST_SHELL_PATH "$0" "$@" >"$TEST_RESULTS_BASE.stress-$job_nr.out" 2>&1 &
test_pid=$!
if wait $test_pid
then
printf "OK %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
else
echo $GIT_TEST_STRESS_JOB_NR >>"$stressfail"
printf "FAIL %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
fi
cnt=$(($cnt + 1))
done
) &
job_pids="$job_pids $!"
job_nr=$(($job_nr + 1))
done
wait
if test -f "$stressfail"
then
stress_exit=1
echo "Log(s) of failed test run(s):"
for failed_job_nr in $(sort -n "$stressfail")
do
echo "Contents of '$TEST_RESULTS_BASE.stress-$failed_job_nr.out':"
cat "$TEST_RESULTS_BASE.stress-$failed_job_nr.out"
done
rm -rf "$TRASH_DIRECTORY.stress-failed"
# Move the last one.
mv "$TRASH_DIRECTORY.stress-$failed_job_nr" "$TRASH_DIRECTORY.stress-failed"
fi
exit $stress_exit
fi
# if --tee was passed, write the output not only to the terminal, but
# additionally to the file test-results/$BASENAME.out, too.
if test "$GIT_TEST_TEE_STARTED" = "done"
then
: # do not redirect again
elif test -n "$tee"
then
mkdir -p "$TEST_RESULTS_DIR"
# Make this filename available to the sub-process in case it is using
# --verbose-log.
GIT_TEST_TEE_OUTPUT_FILE=$TEST_RESULTS_BASE.out
export GIT_TEST_TEE_OUTPUT_FILE
# Truncate before calling "tee -a" to get rid of the results
# from any previous runs.
>"$GIT_TEST_TEE_OUTPUT_FILE"
(GIT_TEST_TEE_STARTED=done ${TEST_SHELL_PATH} "$0" "$@" 2>&1;
echo $? >"$TEST_RESULTS_BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
test "$(cat "$TEST_RESULTS_BASE.exit")" = 0
exit
fi
if test -n "$trace" && test -n "$test_untraceable"
then
# '-x' tracing requested, but this test script can't be reliably
# traced, unless it is run with a Bash version supporting
# BASH_XTRACEFD (introduced in Bash v4.1).
#
# Perform this version check _after_ the test script was
# potentially re-executed with $TEST_SHELL_PATH for '--tee' or
# '--verbose-log', so the right shell is checked and the
# warning is issued only once.
if test -n "$BASH_VERSION" && eval '
test ${BASH_VERSINFO[0]} -gt 4 || {
test ${BASH_VERSINFO[0]} -eq 4 &&
test ${BASH_VERSINFO[1]} -ge 1
}
'
then
: Executed by a Bash version supporting BASH_XTRACEFD. Good.
else
echo >&2 "warning: ignoring -x; '$0' is untraceable without BASH_XTRACEFD"
trace=
fi
fi
if test -n "$trace" && test -z "$verbose_log"
then
verbose=t
fi
# For repeatability, reset the environment to known value.
# TERM is sanitized below, after saving color control sequences.
LANG=C
LC_ALL=C
PAGER=cat
TZ=UTC
export LANG LC_ALL PAGER 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 $ok = join("|", qw(
TRACE
DEBUG
TEST
.*_TEST
PROVE
VALGRIND
UNZIP
PERF_
CURL_VERBOSE
TRACE_CURL
));
my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
print join("\n", @vars);
')
unset XDG_CACHE_HOME
unset XDG_CONFIG_HOME
unset GITPERLLIB
TEST_AUTHOR_LOCALNAME=author
TEST_AUTHOR_DOMAIN=example.com
GIT_AUTHOR_EMAIL=${TEST_AUTHOR_LOCALNAME}@${TEST_AUTHOR_DOMAIN}
GIT_AUTHOR_NAME='A U Thor'
GIT_AUTHOR_DATE='1112354055 +0200'
TEST_COMMITTER_LOCALNAME=committer
TEST_COMMITTER_DOMAIN=example.com
GIT_COMMITTER_EMAIL=${TEST_COMMITTER_LOCALNAME}@${TEST_COMMITTER_DOMAIN}
GIT_COMMITTER_NAME='C O Mitter'
GIT_COMMITTER_DATE='1112354055 +0200'
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 GIT_COMMITTER_DATE GIT_AUTHOR_DATE
export EDITOR
GIT_DEFAULT_HASH="${GIT_TEST_DEFAULT_HASH:-sha1}"
export GIT_DEFAULT_HASH
# Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
GIT_TRACE_BARE=1
export GIT_TRACE_BARE
# Use specific version of the index file format
if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
then
GIT_INDEX_VERSION="$GIT_TEST_INDEX_VERSION"
export GIT_INDEX_VERSION
fi
if test -n "$GIT_TEST_PERL_FATAL_WARNINGS"
then
GIT_PERL_FATAL_WARNINGS=1
export GIT_PERL_FATAL_WARNINGS
fi
# Add libc MALLOC and MALLOC_PERTURB test
# only if we are not executing the test with valgrind
if test -n "$valgrind" ||
test -n "$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 $GIT_TRACE |tr "[A-Z]" "[a-z]") in
1|2|true)
GIT_TRACE=4
;;
esac
# Line feed
LF='
'
# Single quote
SQ=\'
# UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
# when case-folding filenames
u200c=$(printf '\342\200\214')
export _x05 _x35 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB ZERO_OID OID_REGEX
# 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
test "x$TERM" != "xdumb" && (
test -t 1 &&
tput bold >/dev/null 2>&1 &&
tput setaf 1 >/dev/null 2>&1 &&
tput sgr0 >/dev/null 2>&1
) &&
color=t
if test -n "$color"
then
# Save the color control sequences now rather than run tput
# each time say_color() is called. This is done for two
# reasons:
# * TERM will be changed to dumb
# * HOME will be changed to a temporary directory and tput
# might need to read ~/.terminfo from the original HOME
# directory to get the control sequences
# Note: This approach assumes the control sequences don't end
# in a newline for any terminal of interest (command
# substitutions strip trailing newlines). Given that most
# (all?) terminals in common use are related to ECMA-48, this
# shouldn't be a problem.
say_color_error=$(tput bold; tput setaf 1) # bold red
say_color_skip=$(tput setaf 4) # blue
say_color_warn=$(tput setaf 3) # brown/yellow
say_color_pass=$(tput setaf 2) # green
say_color_info=$(tput setaf 6) # cyan
say_color_reset=$(tput sgr0)
say_color_="" # no formatting for normal text
say_color () {
test -z "$1" && test -n "$quiet" && return
eval "say_color_color=\$say_color_$1"
shift
printf "%s\\n" "$say_color_color$*$say_color_reset"
}
else
say_color() {
test -z "$1" && test -n "$quiet" && return
shift
printf "%s\n" "$*"
}
fi
TERM=dumb
export TERM
error () {
say_color error "error: $*"
finalize_junit_xml
GIT_EXIT_OK=t
exit 1
}
BUG () {
error >&7 "bug in the test script: $*"
}
say () {
say_color info "$*"
}
if test -n "$HARNESS_ACTIVE"
then
if test "$verbose" = t || test -n "$verbose_only"
then
printf 'Bail out! %s\n' \
'verbose mode forbidden under TAP harness; try --verbose-log'
exit 1
fi
fi
test "${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
exec 7>&2
if test "$verbose_log" = "t"
then
exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
elif test "$verbose" = "t"
then
exec 4>&2 3>&1
else
exec 4>/dev/null 3>/dev/null
fi
# Send any "-x" output directly to stderr to avoid polluting tests
# which capture stderr. We can do this unconditionally since it
# has no effect if tracing isn't turned on.
#
# Note that this sets up the trace fd as soon as we assign the variable, so it
# must come after the creation of descriptor 4 above. Likewise, we must never
# unset this, as it has the side effect of closing descriptor 4, which we
# use to show verbose tests to the user.
#
# Note also that we don't need or want to export it. The tracing is local to
# this shell, and we would not want to influence any shells we exec.
BASH_XTRACEFD=4
test_failure=0
test_count=0
test_fixed=0
test_broken=0
test_success=0
test_external_has_tap=0
die () {
code=$?
# This is responsible for running the atexit commands even when a
# test script run with '--immediate' fails, or when the user hits
# ctrl-C, i.e. when 'test_done' is not invoked at all.
test_atexit_handler || code=$?
if test -n "$GIT_EXIT_OK"
then
exit $code
else
echo >&5 "FATAL: Unexpected exit with code $code"
exit 1
fi
}
GIT_EXIT_OK=
trap 'die' EXIT
# Disable '-x' tracing, because with some shells, notably dash, it
# prevents running the cleanup commands when a test script run with
# '--verbose-log -x' is interrupted.
trap '{ code=$?; set +x; } 2>/dev/null; exit $code' INT TERM HUP
# The user-facing functions are loaded from a separate file so that
# test_perf subshells can have them too
. "$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_ () {
if test -n "$write_junit_xml"
then
write_junit_xml_testcase "$*"
fi
test_success=$(($test_success + 1))
say_color "" "ok $test_count - $@"
}
test_failure_ () {
if test -n "$write_junit_xml"
then
junit_insert="<failure message=\"not ok $test_count -"
junit_insert="$junit_insert $(xml_attr_encode "$1")\">"
junit_insert="$junit_insert $(xml_attr_encode \
"$(if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
then
test-tool path-utils skip-n-bytes \
"$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET
else
printf '%s\n' "$@" | sed 1d
fi)")"
junit_insert="$junit_insert</failure>"
if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
then
junit_insert="$junit_insert<system-err>$(xml_attr_encode \
"$(cat "$GIT_TEST_TEE_OUTPUT_FILE")")</system-err>"
fi
write_junit_xml_testcase "$1" " $junit_insert"
fi
test_failure=$(($test_failure + 1))
say_color error "not ok $test_count - $1"
shift
printf '%s\n' "$*" | sed -e 's/^/# /'
test "$immediate" = "" || { finalize_junit_xml; GIT_EXIT_OK=t; exit 1; }
}
test_known_broken_ok_ () {
if test -n "$write_junit_xml"
then
write_junit_xml_testcase "$* (breakage fixed)"
fi
test_fixed=$(($test_fixed+1))
say_color error "ok $test_count - $@ # TODO known breakage vanished"
}
test_known_broken_failure_ () {
if test -n "$write_junit_xml"
then
write_junit_xml_testcase "$* (known breakage)"
fi
test_broken=$(($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 () {
operation="$1"
shift
title="$1"
shift
arg="$1"
shift
test -z "$1" && return 0
# Commas are accepted as separators.
OLDIFS=$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: $operation: invalid non-numeric in range" \
"start: '$orig_selector'" >&2
exit 1
fi
if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
then
echo "error: $operation: invalid non-numeric in range" \
"end: '$orig_selector'" >&2
exit 1
fi
;;
*)
if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
then
case "$title" in *${selector}*)
include=$positive
;;
esac
continue
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 $valgrind_only
then
GIT_VALGRIND_ENABLED=t
fi
}
trace_level_=0
want_trace () {
test "$trace" = t && {
test "$verbose" = t || test "$verbose_log" = t
}
}
# 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 '$*'
eval "
want_trace && trace_level_=$(($trace_level_+1)) && set -x
$*"
}
test_eval_ () {
# If "-x" tracing is in effect, then we want to avoid polluting stderr
# with non-test commands. But 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.
#
# There are a few subtleties here:
#
# - we have to redirect descriptor 4 in addition to 2, to cover
# BASH_XTRACEFD
#
# - the actual eval has to come before the redirection block (since
# it needs to see descriptor 4 to set up its stderr)
#
# - likewise, any error message we print must be outside the block to
# access descriptor 4
#
# - checking $? has to come immediately after the eval, but it must
# be _inside_ the block to avoid polluting the "set -x" output
#
test_eval_inner_ "$@" </dev/null >&3 2>&4
{
test_eval_ret_=$?
if want_trace
then
test 1 = $trace_level_ && set +x
trace_level_=$(($trace_level_-1))
fi
} 2>/dev/null 4>&2
if test "$test_eval_ret_" != 0 && want_trace
then
say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
fi
return $test_eval_ret_
}
test_run_ () {
test_cleanup=:
expecting_failure=$2
if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
# turn off tracing for this test-eval, as it simply creates
# confusing noise in the "-x" output
trace_tmp=$trace
trace=
# 117 is magic because it is unlikely to match the exit
# code of other programs
if test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)" ||
{
test "${GIT_TEST_CHAIN_LINT_HARDER:-${GIT_TEST_CHAIN_LINT_HARDER_DEFAULT:-1}}" != 0 &&
$(printf '%s\n' "$1" | sed -f "$GIT_BUILD_DIR/t/chainlint.sed" | grep -q '?![A-Z][A-Z]*?!')
}
then
BUG "broken &&-chain or run-away HERE-DOC: $1"
fi
trace=$trace_tmp
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 "$eval_ret"
}
test_start_ () {
test_count=$(($test_count+1))
maybe_setup_verbose
maybe_setup_valgrind
if test -n "$write_junit_xml"
then
junit_start=$(test-tool date getnanos)
fi
}
test_finish_ () {
echo >&3 ""
maybe_teardown_valgrind
maybe_teardown_verbose
if test -n "$GIT_TEST_TEE_OFFSET"
then
GIT_TEST_TEE_OFFSET=$(test-tool path-utils file-size \
"$GIT_TEST_TEE_OUTPUT_FILE")
fi
}
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 "$run_list" &&
! match_test_selector_list '--run' "$1" $test_count "$run_list"
then
to_skip=t
skipped_reason="--run"
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
case "$to_skip" in
t)
if test -n "$write_junit_xml"
then
message="$(xml_attr_encode "$skipped_reason")"
write_junit_xml_testcase "$1" \
" <skipped message=\"$message\" />"
fi
say_color skip "ok $test_count # skip $1 ($skipped_reason)"
: true
;;
*)
false
;;
esac
}
# stub; perf-lib overrides it
test_at_end_hook_ () {
:
}
write_junit_xml () {
case "$1" in
--truncate)
>"$junit_xml_path"
junit_have_testcase=
shift
;;
esac
printf '%s\n' "$@" >>"$junit_xml_path"
}
xml_attr_encode () {
printf '%s\n' "$@" | test-tool xml-encode
}
write_junit_xml_testcase () {
junit_attrs="name=\"$(xml_attr_encode "$this_test.$test_count $1")\""
shift
junit_attrs="$junit_attrs classname=\"$this_test\""
junit_attrs="$junit_attrs time=\"$(test-tool \
date getnanos $junit_start)\""
write_junit_xml "$(printf '%s\n' \
" <testcase $junit_attrs>" "$@" " </testcase>")"
junit_have_testcase=t
}
finalize_junit_xml () {
if test -n "$write_junit_xml" && test -n "$junit_xml_path"
then
test -n "$junit_have_testcase" || {
junit_start=$(test-tool date getnanos)
write_junit_xml_testcase "all tests skipped"
}
# adjust the overall time
junit_time=$(test-tool date getnanos $junit_suite_start)
sed -e "s/\(<testsuite.*\) time=\"[^\"]*\"/\1/" \
-e "s/<testsuite [^>]*/& time=\"$junit_time\"/" \
-e '/^ *<\/testsuite/d' \
<"$junit_xml_path" >"$junit_xml_path.new"
mv "$junit_xml_path.new" "$junit_xml_path"
write_junit_xml " </testsuite>" "</testsuites>"
write_junit_xml=
fi
}
test_atexit_cleanup=:
test_atexit_handler () {
# In a succeeding test script 'test_atexit_handler' is invoked
# twice: first from 'test_done', then from 'die' in the trap on
# EXIT.
# This condition and resetting 'test_atexit_cleanup' below makes
# sure that the registered cleanup commands are run only once.
test : != "$test_atexit_cleanup" || return 0
setup_malloc_check
test_eval_ "$test_atexit_cleanup"
test_atexit_cleanup=:
teardown_malloc_check
}
test_done () {
GIT_EXIT_OK=t
# Run the atexit commands _before_ the trash directory is
# removed, so the commands can access pidfiles and socket files.
test_atexit_handler
finalize_junit_xml
if test -z "$HARNESS_ACTIVE"
then
mkdir -p "$TEST_RESULTS_DIR"
cat >"$TEST_RESULTS_BASE.counts" <<-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)
if test $test_external_has_tap -eq 0
then
if test $test_remaining -gt 0
then
say_color pass "# passed all $msg"
fi
# Maybe print SKIP message
test -z "$skip_all" || skip_all="# SKIP $skip_all"
case "$test_count" in
0)
say "1..$test_count${skip_all:+ $skip_all}"
;;
*)
test -z "$skip_all" ||
say_color warn "$skip_all"
say "1..$test_count"
;;
esac
fi
if test -z "$debug"
then
test -d "$TRASH_DIRECTORY" ||
error "Tests passed but trash directory already removed before test cleanup; aborting"
cd "$TRASH_DIRECTORY/.." &&
rm -fr "$TRASH_DIRECTORY" || {
# try again in a bit
sleep 5;
rm -fr "$TRASH_DIRECTORY"
} ||
error "Tests passed but test cleanup failed; aborting"
fi
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 "$1" ||
test "# " = "$(test_copy_bytes 2 <"$1")" ||
return;
base=$(basename "$1")
case "$base" in
test-*)
symlink_target="$GIT_BUILD_DIR/t/helper/$base"
;;
*)
symlink_target="$GIT_BUILD_DIR/$base"
;;
esac
# do not override scripts
if test -x "$symlink_target" &&
test ! -d "$symlink_target" &&
test "#!" != "$(test_copy_bytes 2 <"$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/t/helper/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:$GIT_BUILD_DIR/t/helper:$PATH
GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
else # normal case, use ../bin-wrappers only unless $with_dashes:
if test -n "$no_bin_wrappers"
then
with_dashes=t
else
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"
fi
GIT_EXEC_PATH=$GIT_BUILD_DIR
if test -n "$with_dashes"
then
PATH="$GIT_BUILD_DIR:$GIT_BUILD_DIR/t/helper:$PATH"
fi
fi
GIT_TEMPLATE_DIR="$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="$GIT_BUILD_DIR"/perl/build/lib
export GITPERLLIB
test -d "$GIT_BUILD_DIR"/templates/blt || {
error "You haven't built things yet, have you?"
}
if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
then
echo >&2 'You need to build test-tool:'
echo >&2 'Run "make t/helper/test-tool" in the source (toplevel) directory'
exit 1
fi
# Test repository
rm -fr "$TRASH_DIRECTORY" || {
GIT_EXIT_OK=t
echo >&5 "FATAL: Cannot prepare test area"
exit 1
}
HOME="$TRASH_DIRECTORY"
GNUPGHOME="$HOME/gnupg-home-not-used"
export HOME GNUPGHOME
if test -z "$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 $this_test"
test_done
fi
if test -n "$write_junit_xml"
then
junit_xml_dir="$TEST_OUTPUT_DIRECTORY/out"
mkdir -p "$junit_xml_dir"
junit_xml_base=${0##*/}
junit_xml_path="$junit_xml_dir/TEST-${junit_xml_base%.sh}.xml"
junit_attrs="name=\"${junit_xml_base%.sh}\""
junit_attrs="$junit_attrs timestamp=\"$(TZ=UTC \
date +%Y-%m-%dT%H:%M:%S)\""
write_junit_xml --truncate "<testsuites>" " <testsuite $junit_attrs>"
junit_suite_start=$(test-tool date getnanos)
if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
then
GIT_TEST_TEE_OFFSET=0
fi
fi
# Convenience
# A regexp to match 5, 35 and 40 hexdigits
_x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
_x40="$_x35$_x05"
test_oid_init
ZERO_OID=$(test_oid zero)
OID_REGEX=$(echo $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
OIDPATH_REGEX=$(test_oid_to_path $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
EMPTY_TREE=$(test_oid empty_tree)
EMPTY_BLOB=$(test_oid empty_blob)
_z40=$ZERO_OID
# Provide an implementation of the 'yes' utility; the upper bound
# limit is there to help Windows that cannot stop this loop from
# wasting cycles when the downstream stops reading, so do not be
# tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
# limit the output of the yes utility", 2016-02-02)
yes () {
if test $# = 0
then
y=y
else
y="$*"
fi
i=0
while test $i -lt 99
do
echo "$y"
i=$(($i+1))
done
}
# The GIT_TEST_FAIL_PREREQS code hooks into test_set_prereq(), and
# thus needs to be set up really early, and set an internal variable
# for convenience so the hot test_set_prereq() codepath doesn't need
# to call "git env--helper" (via test_bool_env). Only do that work
# if needed by seeing if GIT_TEST_FAIL_PREREQS is set at all.
GIT_TEST_FAIL_PREREQS_INTERNAL=
if test -n "$GIT_TEST_FAIL_PREREQS"
then
if test_bool_env GIT_TEST_FAIL_PREREQS false
then
GIT_TEST_FAIL_PREREQS_INTERNAL=true
test_set_prereq FAIL_PREREQS
fi
else
test_lazy_prereq FAIL_PREREQS '
test_bool_env GIT_TEST_FAIL_PREREQS false
'
fi
# Fix some commands on Windows, and other OS-specific things
uname_s=$(uname -s)
case $uname_s in
*MINGW*)
# Windows has its own (incompatible) sort and find
sort () {
/usr/bin/sort "$@"
}
find () {
/usr/bin/find "$@"
}
# git sees Windows-style pwd
pwd () {
builtin pwd -W
}
# no POSIX permissions
# backslashes in pathspec are converted to '/'
# exec does not inherit the PID
test_set_prereq MINGW
test_set_prereq NATIVE_CRLF
test_set_prereq SED_STRIPS_CR
test_set_prereq GREP_STRIPS_CR
GIT_TEST_CMP=mingw_test_cmp
;;
*CYGWIN*)
test_set_prereq POSIXPERM
test_set_prereq EXECKEEPSPID
test_set_prereq CYGWIN
test_set_prereq SED_STRIPS_CR
test_set_prereq GREP_STRIPS_CR
;;
*)
test_set_prereq POSIXPERM
test_set_prereq BSLASHPSPEC
test_set_prereq EXECKEEPSPID
;;
esac
# Detect arches where a few things don't work
uname_m=$(uname -m)
case $uname_m in
parisc* | hppa*)
test_set_prereq HPPA
;;
esac
( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
test -z "$NO_PERL" && test_set_prereq PERL
test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
test -z "$NO_PYTHON" && test_set_prereq PYTHON
test -n "$USE_LIBPCRE2" && test_set_prereq PCRE
test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
if test -z "$GIT_TEST_CHECK_CACHE_TREE"
then
GIT_TEST_CHECK_CACHE_TREE=true
export GIT_TEST_CHECK_CACHE_TREE
fi
test_lazy_prereq PIPE '
# test whether the filesystem supports FIFOs
test_have_prereq !MINGW,!CYGWIN &&
rm -f testfifo && mkfifo testfifo
'
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 FUNNYNAMES '
test_have_prereq !MINGW &&
touch -- \
"FUNNYNAMES tab embedded" \
"FUNNYNAMES \"quote embedded\"" \
"FUNNYNAMES newline
embedded" 2>/dev/null &&
rm -- \
"FUNNYNAMES tab embedded" \
"FUNNYNAMES \"quote embedded\"" \
"FUNNYNAMES newline
embedded" 2>/dev/null
'
test_lazy_prereq UTF8_NFD_TO_NFC '
# check whether FS converts nfd unicode to nfc
auml=$(printf "\303\244")
aumlcdiar=$(printf "\141\314\210")
>"$auml" &&
test -f "$aumlcdiar"
'
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 "$GIT_TEST_LONG"
'
test_lazy_prereq EXPENSIVE_ON_WINDOWS '
test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
'
test_lazy_prereq USR_BIN_TIME '
test -x /usr/bin/time
'
test_lazy_prereq NOT_ROOT '
uid=$(id -u) &&
test "$uid" != 0
'
test_lazy_prereq JGIT '
jgit --version
'
# SANITY is about "can you correctly predict what the filesystem would
# do by only looking at the permission bits of the files and
# directories?" A typical example of !SANITY is running the test
# suite as root, where a test may expect "chmod -r file && cat file"
# to fail because file is supposed to be unreadable after a successful
# chmod. In an environment (i.e. combination of what filesystem is
# being used and who is running the tests) that lacks SANITY, you may
# be able to delete or create a file when the containing directory
# doesn't have write permissions, or access a file even if the
# containing directory doesn't have read or execute permissions.
test_lazy_prereq SANITY '
mkdir SANETESTD.1 SANETESTD.2 &&
chmod +w SANETESTD.1 SANETESTD.2 &&
>SANETESTD.1/x 2>SANETESTD.2/x &&
chmod -w SANETESTD.1 &&
chmod -r SANETESTD.1/x &&
chmod -rx SANETESTD.2 ||
BUG "cannot prepare SANETESTD"
! test -r SANETESTD.1/x &&
! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
status=$?
chmod +rwx SANETESTD.1 SANETESTD.2 &&
rm -rf SANETESTD.1 SANETESTD.2 ||
BUG "cannot clean SANETESTD"
return $status
'
test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
GIT_UNZIP=${GIT_UNZIP:-unzip}
test_lazy_prereq UNZIP '
"$GIT_UNZIP" -v
test $? -ne 127
'
run_with_limited_cmdline () {
(ulimit -s 128 && "$@")
}
test_lazy_prereq CMDLINE_LIMIT '
test_have_prereq !HPPA,!MINGW,!CYGWIN &&
run_with_limited_cmdline true
'
run_with_limited_stack () {
(ulimit -s 128 && "$@")
}
test_lazy_prereq ULIMIT_STACK_SIZE '
test_have_prereq !HPPA,!MINGW,!CYGWIN &&
run_with_limited_stack true
'
run_with_limited_open_files () {
(ulimit -n 32 && "$@")
}
test_lazy_prereq ULIMIT_FILE_DESCRIPTORS '
test_have_prereq !MINGW,!CYGWIN &&
run_with_limited_open_files true
'
build_option () {
git version --build-options |
sed -ne "s/^$1: //p"
}
test_lazy_prereq LONG_IS_64BIT '
test 8 -le "$(build_option sizeof-long)"
'
test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
test_lazy_prereq CURL '
curl --version
'
# SHA1 is a test if the hash algorithm in use is SHA-1. This is both for tests
# which will not work with other hash algorithms and tests that work but don't
# test anything meaningful (e.g. special values which cause short collisions).
test_lazy_prereq SHA1 '
case "$GIT_DEFAULT_HASH" in
sha1) true ;;
"") test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 ;;
*) false ;;
esac
'
test_lazy_prereq REBASE_P '
test -z "$GIT_TEST_SKIP_REBASE_P"
'
# Ensure that no test accidentally triggers a Git command
# that runs the actual maintenance scheduler, affecting a user's
# system permanently.
# Tests that verify the scheduler integration must set this locally
# to avoid errors.
GIT_TEST_MAINT_SCHEDULER="none:exit 1"