t/test-lib.sh

   1 # Test framework for git.  See t/README for usage.
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see http://www.gnu.org/licenses/ .
  17
  18 # Test the binaries we have just built.  The tests are kept in
  19 # t/ subdirectory and are run in 'trash directory' subdirectory.
  20 if test -z "$TEST_DIRECTORY"
  21 then
  22         # ensure that TEST_DIRECTORY is an absolute path so that it
  23         # is valid even if the current working directory is changed
  24         TEST_DIRECTORY=$(pwd)
  25 else
  26         # The TEST_DIRECTORY will always be the path to the "t"
  27         # directory in the git.git checkout. This is overridden by
  28         # e.g. t/lib-subtest.sh, but only because its $(pwd) is
  29         # different. Those tests still set "$TEST_DIRECTORY" to the
  30         # same path.
  31         #
  32         # See use of "$GIT_BUILD_DIR" and "$TEST_DIRECTORY" below for
  33         # hard assumptions about "$GIT_BUILD_DIR/t" existing and being
  34         # the "$TEST_DIRECTORY", and e.g. "$TEST_DIRECTORY/helper"
  35         # needing to exist.
  36         TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
  37 fi
  38 if test -z "$TEST_OUTPUT_DIRECTORY"
  39 then
  40         # Similarly, override this to store the test-results subdir
  41         # elsewhere
  42         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  43 fi
  44 GIT_BUILD_DIR="${TEST_DIRECTORY%/t}"
  45 if test "$TEST_DIRECTORY" = "$GIT_BUILD_DIR"
  46 then
  47         echo "PANIC: Running in a $TEST_DIRECTORY that doesn't end in '/t'?" >&2
  48         exit 1
  49 fi
  50 if test -f "$GIT_BUILD_DIR/GIT-BUILD-DIR"
  51 then
  52         GIT_BUILD_DIR="$(cat "$GIT_BUILD_DIR/GIT-BUILD-DIR")" || exit 1
  53         # On Windows, we must convert Windows paths lest they contain a colon
  54         case "$(uname -s)" in
  55         *MINGW*)
  56                 GIT_BUILD_DIR="$(cygpath -au "$GIT_BUILD_DIR")"
  57                 ;;
  58         esac
  59 fi
  60
  61 # Prepend a string to a VAR using an arbitrary ":" delimiter, not
  62 # adding the delimiter if VAR or VALUE is empty. I.e. a generalized:
  63 #
  64 #       VAR=$1${VAR:+${1:+$2}$VAR}
  65 #
  66 # Usage (using ":" as the $2 delimiter):
  67 #
  68 #       prepend_var VAR : VALUE
  69 prepend_var () {
  70         eval "$1=\"$3\${$1:+${3:+$2}\$$1}\""
  71 }
  72
  73 # If [AL]SAN is in effect we want to abort so that we notice
  74 # problems. The GIT_SAN_OPTIONS variable can be used to set common
  75 # defaults shared between [AL]SAN_OPTIONS.
  76 prepend_var GIT_SAN_OPTIONS : abort_on_error=1
  77 prepend_var GIT_SAN_OPTIONS : strip_path_prefix="$GIT_BUILD_DIR/"
  78
  79 # If we were built with ASAN, it may complain about leaks
  80 # of program-lifetime variables. Disable it by default to lower
  81 # the noise level. This needs to happen at the start of the script,
  82 # before we even do our "did we build git yet" check (since we don't
  83 # want that one to complain to stderr).
  84 prepend_var ASAN_OPTIONS : $GIT_SAN_OPTIONS
  85 prepend_var ASAN_OPTIONS : detect_leaks=0
  86 export ASAN_OPTIONS
  87
  88 prepend_var LSAN_OPTIONS : $GIT_SAN_OPTIONS
  89 prepend_var LSAN_OPTIONS : fast_unwind_on_malloc=0
  90 export LSAN_OPTIONS
  91
  92 prepend_var UBSAN_OPTIONS : $GIT_SAN_OPTIONS
  93 export UBSAN_OPTIONS
  94
  95 if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  96 then
  97         echo >&2 'error: GIT-BUILD-OPTIONS missing (has Git been built?).'
  98         exit 1
  99 fi
 100 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
 101 export PERL_PATH SHELL_PATH
 102
 103 # In t0000, we need to override test directories of nested testcases. In case
 104 # the developer has TEST_OUTPUT_DIRECTORY part of his build options, then we'd
 105 # reset this value to instead contain what the developer has specified. We thus
 106 # have this knob to allow overriding the directory.
 107 if test -n "${TEST_OUTPUT_DIRECTORY_OVERRIDE}"
 108 then
 109         TEST_OUTPUT_DIRECTORY="${TEST_OUTPUT_DIRECTORY_OVERRIDE}"
 110 fi
 111
 112 # Disallow the use of abbreviated options in the test suite by default
 113 if test -z "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS}"
 114 then
 115         GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
 116         export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
 117 fi
 118
 119 # Explicitly set the default branch name for testing, to avoid the
 120 # transitory "git init" warning under --verbose.
 121 : ${GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME:=master}
 122 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 123
 124 ################################################################
 125 # It appears that people try to run tests without building...
 126 "${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
 127 if test $? != 1
 128 then
 129         if test -n "$GIT_TEST_INSTALLED"
 130         then
 131                 echo >&2 "error: there is no working Git at '$GIT_TEST_INSTALLED'"
 132         else
 133                 echo >&2 'error: you do not seem to have built git yet.'
 134         fi
 135         exit 1
 136 fi
 137
 138 store_arg_to=
 139 opt_required_arg=
 140 # $1: option string
 141 # $2: name of the var where the arg will be stored
 142 mark_option_requires_arg () {
 143         if test -n "$opt_required_arg"
 144         then
 145                 echo "error: options that require args cannot be bundled" \
 146                         "together: '$opt_required_arg' and '$1'" >&2
 147                 exit 1
 148         fi
 149         opt_required_arg=$1
 150         store_arg_to=$2
 151 }
 152
 153 # These functions can be overridden e.g. to output JUnit XML
 154 start_test_output () { :; }
 155 start_test_case_output () { :; }
 156 finalize_test_case_output () { :; }
 157 finalize_test_output () { :; }
 158
 159 parse_option () {
 160         local opt="$1"
 161
 162         case "$opt" in
 163         -d|--d|--de|--deb|--debu|--debug)
 164                 debug=t ;;
 165         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 166                 immediate=t ;;
 167         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 168                 GIT_TEST_LONG=t; export GIT_TEST_LONG ;;
 169         -r)
 170                 mark_option_requires_arg "$opt" run_list
 171                 ;;
 172         --run=*)
 173                 run_list=${opt#--*=} ;;
 174         -h|--h|--he|--hel|--help)
 175                 help=t ;;
 176         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 177                 verbose=t ;;
 178         --verbose-only=*)
 179                 verbose_only=${opt#--*=}
 180                 ;;
 181         -q|--q|--qu|--qui|--quie|--quiet)
 182                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 183                 # passed without the ok/not ok details is always an error.
 184                 test -z "$HARNESS_ACTIVE" && quiet=t ;;
 185         --with-dashes)
 186                 with_dashes=t ;;
 187         --no-bin-wrappers)
 188                 no_bin_wrappers=t ;;
 189         --no-color)
 190                 color= ;;
 191         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 192                 valgrind=memcheck
 193                 tee=t
 194                 ;;
 195         --valgrind=*)
 196                 valgrind=${opt#--*=}
 197                 tee=t
 198                 ;;
 199         --valgrind-only=*)
 200                 valgrind_only=${opt#--*=}
 201                 tee=t
 202                 ;;
 203         --tee)
 204                 tee=t ;;
 205         --root=*)
 206                 root=${opt#--*=} ;;
 207         --chain-lint)
 208                 GIT_TEST_CHAIN_LINT=1 ;;
 209         --no-chain-lint)
 210                 GIT_TEST_CHAIN_LINT=0 ;;
 211         -x)
 212                 trace=t ;;
 213         -V|--verbose-log)
 214                 verbose_log=t
 215                 tee=t
 216                 ;;
 217         --write-junit-xml)
 218                 . "$TEST_DIRECTORY/test-lib-junit.sh"
 219                 ;;
 220         --github-workflow-markup)
 221                 . "$TEST_DIRECTORY/test-lib-github-workflow-markup.sh"
 222                 ;;
 223         --stress)
 224                 stress=t ;;
 225         --stress=*)
 226                 echo "error: --stress does not accept an argument: '$opt'" >&2
 227                 echo "did you mean --stress-jobs=${opt#*=} or --stress-limit=${opt#*=}?" >&2
 228                 exit 1
 229                 ;;
 230         --stress-jobs=*)
 231                 stress=t;
 232                 stress_jobs=${opt#--*=}
 233                 case "$stress_jobs" in
 234                 *[!0-9]*|0*|"")
 235                         echo "error: --stress-jobs=<N> requires the number of jobs to run" >&2
 236                         exit 1
 237                         ;;
 238                 *)      # Good.
 239                         ;;
 240                 esac
 241                 ;;
 242         --stress-limit=*)
 243                 stress=t;
 244                 stress_limit=${opt#--*=}
 245                 case "$stress_limit" in
 246                 *[!0-9]*|0*|"")
 247                         echo "error: --stress-limit=<N> requires the number of repetitions" >&2
 248                         exit 1
 249                         ;;
 250                 *)      # Good.
 251                         ;;
 252                 esac
 253                 ;;
 254         --invert-exit-code)
 255                 invert_exit_code=t
 256                 ;;
 257         *)
 258                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 259         esac
 260 }
 261
 262 # Parse options while taking care to leave $@ intact, so we will still
 263 # have all the original command line options when executing the test
 264 # script again for '--tee' and '--verbose-log' later.
 265 for opt
 266 do
 267         if test -n "$store_arg_to"
 268         then
 269                 eval $store_arg_to=\$opt
 270                 store_arg_to=
 271                 opt_required_arg=
 272                 continue
 273         fi
 274
 275         case "$opt" in
 276         --*|-?)
 277                 parse_option "$opt" ;;
 278         -?*)
 279                 # bundled short options must be fed separately to parse_option
 280                 opt=${opt#-}
 281                 while test -n "$opt"
 282                 do
 283                         extra=${opt#?}
 284                         this=${opt%$extra}
 285                         opt=$extra
 286                         parse_option "-$this"
 287                 done
 288                 ;;
 289         *)
 290                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 291         esac
 292 done
 293 if test -n "$store_arg_to"
 294 then
 295         echo "error: $opt_required_arg requires an argument" >&2
 296         exit 1
 297 fi
 298
 299 if test -n "$valgrind_only"
 300 then
 301         test -z "$valgrind" && valgrind=memcheck
 302         test -z "$verbose" && verbose_only="$valgrind_only"
 303 elif test -n "$valgrind"
 304 then
 305         test -z "$verbose_log" && verbose=t
 306 fi
 307
 308 if test -n "$stress"
 309 then
 310         verbose=t
 311         trace=t
 312         immediate=t
 313 fi
 314
 315 TEST_STRESS_JOB_SFX="${GIT_TEST_STRESS_JOB_NR:+.stress-$GIT_TEST_STRESS_JOB_NR}"
 316 TEST_NAME="$(basename "$0" .sh)"
 317 TEST_NUMBER="${TEST_NAME%%-*}"
 318 TEST_NUMBER="${TEST_NUMBER#t}"
 319 TEST_RESULTS_DIR="$TEST_OUTPUT_DIRECTORY/test-results"
 320 TEST_RESULTS_BASE="$TEST_RESULTS_DIR/$TEST_NAME$TEST_STRESS_JOB_SFX"
 321 TEST_RESULTS_SAN_FILE_PFX=trace
 322 TEST_RESULTS_SAN_DIR_SFX=leak
 323 TEST_RESULTS_SAN_FILE=
 324 TEST_RESULTS_SAN_DIR="$TEST_RESULTS_DIR/$TEST_NAME.$TEST_RESULTS_SAN_DIR_SFX"
 325 TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP=
 326 TRASH_DIRECTORY="trash directory.$TEST_NAME$TEST_STRESS_JOB_SFX"
 327 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 328 case "$TRASH_DIRECTORY" in
 329 /*) ;; # absolute path is good
 330  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 331 esac
 332
 333 # Utility functions using $TEST_RESULTS_* variables
 334 nr_san_dir_leaks_ () {
 335         # stderr piped to /dev/null because the directory may have
 336         # been "rmdir"'d already.
 337         find "$TEST_RESULTS_SAN_DIR" \
 338                 -type f \
 339                 -name "$TEST_RESULTS_SAN_FILE_PFX.*" 2>/dev/null |
 340         xargs grep -lv "Unable to get registers from thread" |
 341         wc -l
 342 }
 343
 344 # If --stress was passed, run this test repeatedly in several parallel loops.
 345 if test "$GIT_TEST_STRESS_STARTED" = "done"
 346 then
 347         : # Don't stress test again.
 348 elif test -n "$stress"
 349 then
 350         if test -n "$stress_jobs"
 351         then
 352                 job_count=$stress_jobs
 353         elif test -n "$GIT_TEST_STRESS_LOAD"
 354         then
 355                 job_count="$GIT_TEST_STRESS_LOAD"
 356         elif job_count=$(getconf _NPROCESSORS_ONLN 2>/dev/null) &&
 357              test -n "$job_count"
 358         then
 359                 job_count=$((2 * $job_count))
 360         else
 361                 job_count=8
 362         fi
 363
 364         mkdir -p "$TEST_RESULTS_DIR"
 365         stressfail="$TEST_RESULTS_BASE.stress-failed"
 366         rm -f "$stressfail"
 367
 368         stress_exit=0
 369         trap '
 370                 kill $job_pids 2>/dev/null
 371                 wait
 372                 stress_exit=1
 373         ' TERM INT HUP
 374
 375         job_pids=
 376         job_nr=0
 377         while test $job_nr -lt "$job_count"
 378         do
 379                 (
 380                         GIT_TEST_STRESS_STARTED=done
 381                         GIT_TEST_STRESS_JOB_NR=$job_nr
 382                         export GIT_TEST_STRESS_STARTED GIT_TEST_STRESS_JOB_NR
 383
 384                         trap '
 385                                 kill $test_pid 2>/dev/null
 386                                 wait
 387                                 exit 1
 388                         ' TERM INT
 389
 390                         cnt=1
 391                         while ! test -e "$stressfail" &&
 392                               { test -z "$stress_limit" ||
 393                                 test $cnt -le $stress_limit ; }
 394                         do
 395                                 $TEST_SHELL_PATH "$0" "$@" >"$TEST_RESULTS_BASE.stress-$job_nr.out" 2>&1 &
 396                                 test_pid=$!
 397
 398                                 if wait $test_pid
 399                                 then
 400                                         printf "OK   %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 401                                 else
 402                                         echo $GIT_TEST_STRESS_JOB_NR >>"$stressfail"
 403                                         printf "FAIL %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 404                                 fi
 405                                 cnt=$(($cnt + 1))
 406                         done
 407                 ) &
 408                 job_pids="$job_pids $!"
 409                 job_nr=$(($job_nr + 1))
 410         done
 411
 412         wait
 413
 414         if test -f "$stressfail"
 415         then
 416                 stress_exit=1
 417                 echo "Log(s) of failed test run(s):"
 418                 for failed_job_nr in $(sort -n "$stressfail")
 419                 do
 420                         echo "Contents of '$TEST_RESULTS_BASE.stress-$failed_job_nr.out':"
 421                         cat "$TEST_RESULTS_BASE.stress-$failed_job_nr.out"
 422                 done
 423                 rm -rf "$TRASH_DIRECTORY.stress-failed"
 424                 # Move the last one.
 425                 mv "$TRASH_DIRECTORY.stress-$failed_job_nr" "$TRASH_DIRECTORY.stress-failed"
 426         fi
 427
 428         exit $stress_exit
 429 fi
 430
 431 # if --tee was passed, write the output not only to the terminal, but
 432 # additionally to the file test-results/$BASENAME.out, too.
 433 if test "$GIT_TEST_TEE_STARTED" = "done"
 434 then
 435         : # do not redirect again
 436 elif test -n "$tee"
 437 then
 438         mkdir -p "$TEST_RESULTS_DIR"
 439
 440         # Make this filename available to the sub-process in case it is using
 441         # --verbose-log.
 442         GIT_TEST_TEE_OUTPUT_FILE=$TEST_RESULTS_BASE.out
 443         export GIT_TEST_TEE_OUTPUT_FILE
 444
 445         # Truncate before calling "tee -a" to get rid of the results
 446         # from any previous runs.
 447         >"$GIT_TEST_TEE_OUTPUT_FILE"
 448
 449         (GIT_TEST_TEE_STARTED=done ${TEST_SHELL_PATH} "$0" "$@" 2>&1;
 450          echo $? >"$TEST_RESULTS_BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
 451         test "$(cat "$TEST_RESULTS_BASE.exit")" = 0
 452         exit
 453 fi
 454
 455 if test -n "$trace" && test -n "$test_untraceable"
 456 then
 457         # '-x' tracing requested, but this test script can't be reliably
 458         # traced, unless it is run with a Bash version supporting
 459         # BASH_XTRACEFD (introduced in Bash v4.1).
 460         #
 461         # Perform this version check _after_ the test script was
 462         # potentially re-executed with $TEST_SHELL_PATH for '--tee' or
 463         # '--verbose-log', so the right shell is checked and the
 464         # warning is issued only once.
 465         if test -n "$BASH_VERSION" && eval '
 466              test ${BASH_VERSINFO[0]} -gt 4 || {
 467                test ${BASH_VERSINFO[0]} -eq 4 &&
 468                test ${BASH_VERSINFO[1]} -ge 1
 469              }
 470            '
 471         then
 472                 : Executed by a Bash version supporting BASH_XTRACEFD.  Good.
 473         else
 474                 echo >&2 "warning: ignoring -x; '$0' is untraceable without BASH_XTRACEFD"
 475                 trace=
 476         fi
 477 fi
 478 if test -n "$trace" && test -z "$verbose_log"
 479 then
 480         verbose=t
 481 fi
 482
 483 # Since bash 5.0, checkwinsize is enabled by default which does
 484 # update the COLUMNS variable every time a non-builtin command
 485 # completes, even for non-interactive shells.
 486 # Disable that since we are aiming for repeatability.
 487 test -n "$BASH_VERSION" && shopt -u checkwinsize 2>/dev/null
 488
 489 # For repeatability, reset the environment to known value.
 490 # TERM is sanitized below, after saving color control sequences.
 491 LANG=C
 492 LC_ALL=C
 493 PAGER=cat
 494 TZ=UTC
 495 COLUMNS=80
 496 export LANG LC_ALL PAGER TZ COLUMNS
 497 EDITOR=:
 498
 499 # A call to "unset" with no arguments causes at least Solaris 10
 500 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
 501 # deriving from the command substitution clustered with the other
 502 # ones.
 503 unset VISUAL EMAIL LANGUAGE $("$PERL_PATH" -e '
 504         my @env = keys %ENV;
 505         my $ok = join("|", qw(
 506                 TRACE
 507                 DEBUG
 508                 TEST
 509                 .*_TEST
 510                 PROVE
 511                 VALGRIND
 512                 UNZIP
 513                 PERF_
 514                 CURL_VERBOSE
 515                 TRACE_CURL
 516         ));
 517         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 518         print join("\n", @vars);
 519 ')
 520 unset XDG_CACHE_HOME
 521 unset XDG_CONFIG_HOME
 522 unset GITPERLLIB
 523 unset GIT_TRACE2_PARENT_NAME
 524 unset GIT_TRACE2_PARENT_SID
 525 TEST_AUTHOR_LOCALNAME=author
 526 TEST_AUTHOR_DOMAIN=example.com
 527 GIT_AUTHOR_EMAIL=${TEST_AUTHOR_LOCALNAME}@${TEST_AUTHOR_DOMAIN}
 528 GIT_AUTHOR_NAME='A U Thor'
 529 GIT_AUTHOR_DATE='1112354055 +0200'
 530 TEST_COMMITTER_LOCALNAME=committer
 531 TEST_COMMITTER_DOMAIN=example.com
 532 GIT_COMMITTER_EMAIL=${TEST_COMMITTER_LOCALNAME}@${TEST_COMMITTER_DOMAIN}
 533 GIT_COMMITTER_NAME='C O Mitter'
 534 GIT_COMMITTER_DATE='1112354055 +0200'
 535 GIT_MERGE_VERBOSITY=5
 536 GIT_MERGE_AUTOEDIT=no
 537 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 538 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 539 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 540 export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 541 export EDITOR
 542
 543 GIT_DEFAULT_HASH="${GIT_TEST_DEFAULT_HASH:-sha1}"
 544 export GIT_DEFAULT_HASH
 545 GIT_TEST_MERGE_ALGORITHM="${GIT_TEST_MERGE_ALGORITHM:-ort}"
 546 export GIT_TEST_MERGE_ALGORITHM
 547
 548 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 549 GIT_TRACE_BARE=1
 550 export GIT_TRACE_BARE
 551
 552 # Some tests scan the GIT_TRACE2_EVENT feed for events, but the
 553 # default depth is 2, which frequently causes issues when the
 554 # events are wrapped in new regions. Set it to a sufficiently
 555 # large depth to avoid custom changes in the test suite.
 556 GIT_TRACE2_EVENT_NESTING=100
 557 export GIT_TRACE2_EVENT_NESTING
 558
 559 # Use specific version of the index file format
 560 if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
 561 then
 562         GIT_INDEX_VERSION="$GIT_TEST_INDEX_VERSION"
 563         export GIT_INDEX_VERSION
 564 fi
 565
 566 if test -n "$GIT_TEST_PERL_FATAL_WARNINGS"
 567 then
 568         GIT_PERL_FATAL_WARNINGS=1
 569         export GIT_PERL_FATAL_WARNINGS
 570 fi
 571
 572 case $GIT_TEST_FSYNC in
 573 '')
 574         GIT_TEST_FSYNC=0
 575         export GIT_TEST_FSYNC
 576         ;;
 577 esac
 578
 579 # Add libc MALLOC and MALLOC_PERTURB test only if we are not executing
 580 # the test with valgrind and have not compiled with conflict SANITIZE
 581 # options.
 582 if test -n "$valgrind" ||
 583    test -n "$SANITIZE_ADDRESS" ||
 584    test -n "$SANITIZE_LEAK" ||
 585    test -n "$TEST_NO_MALLOC_CHECK"
 586 then
 587         setup_malloc_check () {
 588                 : nothing
 589         }
 590         teardown_malloc_check () {
 591                 : nothing
 592         }
 593 else
 594         _USE_GLIBC_TUNABLES=
 595         if _GLIBC_VERSION=$(getconf GNU_LIBC_VERSION 2>/dev/null) &&
 596            _GLIBC_VERSION=${_GLIBC_VERSION#"glibc "} &&
 597            expr 2.34 \<= "$_GLIBC_VERSION" >/dev/null
 598         then
 599                 _USE_GLIBC_TUNABLES=YesPlease
 600         fi
 601         setup_malloc_check () {
 602                 local g
 603                 local t
 604                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 605                 export MALLOC_CHECK_ MALLOC_PERTURB_
 606                 if test -n "$_USE_GLIBC_TUNABLES"
 607                 then
 608                         g=
 609                         LD_PRELOAD="libc_malloc_debug.so.0"
 610                         for t in \
 611                                 glibc.malloc.check=1 \
 612                                 glibc.malloc.perturb=165
 613                         do
 614                                 g="${g#:}:$t"
 615                         done
 616                         GLIBC_TUNABLES=$g
 617                         export LD_PRELOAD GLIBC_TUNABLES
 618                 fi
 619         }
 620         teardown_malloc_check () {
 621                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 622                 unset LD_PRELOAD GLIBC_TUNABLES
 623         }
 624 fi
 625
 626 # Protect ourselves from common misconfiguration to export
 627 # CDPATH into the environment
 628 unset CDPATH
 629
 630 unset GREP_OPTIONS
 631 unset UNZIP
 632
 633 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 634 1|2|true)
 635         GIT_TRACE=4
 636         ;;
 637 esac
 638
 639 # Line feed
 640 LF='
 641 '
 642
 643 # Single quote
 644 SQ=\'
 645
 646 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 647 # when case-folding filenames
 648 u200c=$(printf '\342\200\214')
 649
 650 export _x05 _x35 LF u200c EMPTY_TREE EMPTY_BLOB ZERO_OID OID_REGEX
 651
 652 test "x$TERM" != "xdumb" && (
 653                 test -t 1 &&
 654                 tput bold >/dev/null 2>&1 &&
 655                 tput setaf 1 >/dev/null 2>&1 &&
 656                 tput sgr0 >/dev/null 2>&1
 657         ) &&
 658         color=t
 659
 660 if test -n "$color"
 661 then
 662         # Save the color control sequences now rather than run tput
 663         # each time say_color() is called.  This is done for two
 664         # reasons:
 665         #   * TERM will be changed to dumb
 666         #   * HOME will be changed to a temporary directory and tput
 667         #     might need to read ~/.terminfo from the original HOME
 668         #     directory to get the control sequences
 669         # Note:  This approach assumes the control sequences don't end
 670         # in a newline for any terminal of interest (command
 671         # substitutions strip trailing newlines).  Given that most
 672         # (all?) terminals in common use are related to ECMA-48, this
 673         # shouldn't be a problem.
 674         say_color_error=$(tput bold; tput setaf 1) # bold red
 675         say_color_skip=$(tput setaf 4) # blue
 676         say_color_warn=$(tput setaf 3) # brown/yellow
 677         say_color_pass=$(tput setaf 2) # green
 678         say_color_info=$(tput setaf 6) # cyan
 679         say_color_reset=$(tput sgr0)
 680         say_color_="" # no formatting for normal text
 681         say_color () {
 682                 test -z "$1" && test -n "$quiet" && return
 683                 eval "say_color_color=\$say_color_$1"
 684                 shift
 685                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 686         }
 687 else
 688         say_color() {
 689                 test -z "$1" && test -n "$quiet" && return
 690                 shift
 691                 printf "%s\n" "$*"
 692         }
 693 fi
 694
 695 USER_TERM="$TERM"
 696 TERM=dumb
 697 export TERM USER_TERM
 698
 699 # What is written by tests to stdout and stderr is sent to different places
 700 # depending on the test mode (e.g. /dev/null in non-verbose mode, piped to tee
 701 # with --tee option, etc.). We save the original stdin to FD #6 and stdout and
 702 # stderr to #5 and #7, so that the test framework can use them (e.g. for
 703 # printing errors within the test framework) independently of the test mode.
 704 exec 5>&1
 705 exec 6<&0
 706 exec 7>&2
 707
 708 _error_exit () {
 709         finalize_test_output
 710         GIT_EXIT_OK=t
 711         exit 1
 712 }
 713
 714 error () {
 715         say_color error "error: $*"
 716         _error_exit
 717 }
 718
 719 BUG () {
 720         error >&7 "bug in the test script: $*"
 721 }
 722
 723 BAIL_OUT () {
 724         test $# -ne 1 && BUG "1 param"
 725
 726         # Do not change "Bail out! " string. It's part of TAP syntax:
 727         # https://testanything.org/tap-specification.html
 728         local bail_out="Bail out! "
 729         local message="$1"
 730
 731         say_color >&5 error $bail_out "$message"
 732         _error_exit
 733 }
 734
 735 say () {
 736         say_color info "$*"
 737 }
 738
 739 if test -n "$HARNESS_ACTIVE"
 740 then
 741         if test "$verbose" = t || test -n "$verbose_only"
 742         then
 743                 BAIL_OUT 'verbose mode forbidden under TAP harness; try --verbose-log'
 744         fi
 745 fi
 746
 747 test "${test_description}" != "" ||
 748 error "Test script did not set test_description."
 749
 750 if test "$help" = "t"
 751 then
 752         printf '%s\n' "$test_description"
 753         exit 0
 754 fi
 755
 756 if test "$verbose_log" = "t"
 757 then
 758         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 759 elif test "$verbose" = "t"
 760 then
 761         exec 4>&2 3>&1
 762 else
 763         exec 4>/dev/null 3>/dev/null
 764 fi
 765
 766 # Send any "-x" output directly to stderr to avoid polluting tests
 767 # which capture stderr. We can do this unconditionally since it
 768 # has no effect if tracing isn't turned on.
 769 #
 770 # Note that this sets up the trace fd as soon as we assign the variable, so it
 771 # must come after the creation of descriptor 4 above. Likewise, we must never
 772 # unset this, as it has the side effect of closing descriptor 4, which we
 773 # use to show verbose tests to the user.
 774 #
 775 # Note also that we don't need or want to export it. The tracing is local to
 776 # this shell, and we would not want to influence any shells we exec.
 777 BASH_XTRACEFD=4
 778
 779 test_failure=0
 780 test_count=0
 781 test_fixed=0
 782 test_broken=0
 783 test_success=0
 784
 785 test_missing_prereq=
 786
 787 test_external_has_tap=0
 788
 789 die () {
 790         code=$?
 791         # This is responsible for running the atexit commands even when a
 792         # test script run with '--immediate' fails, or when the user hits
 793         # ctrl-C, i.e. when 'test_done' is not invoked at all.
 794         test_atexit_handler || code=$?
 795         if test -n "$GIT_EXIT_OK"
 796         then
 797                 exit $code
 798         else
 799                 echo >&5 "FATAL: Unexpected exit with code $code"
 800                 exit 1
 801         fi
 802 }
 803
 804 GIT_EXIT_OK=
 805 trap 'die' EXIT
 806 # Disable '-x' tracing, because with some shells, notably dash, it
 807 # prevents running the cleanup commands when a test script run with
 808 # '--verbose-log -x' is interrupted.
 809 trap '{ code=$?; set +x; } 2>/dev/null; exit $code' INT TERM HUP
 810
 811 # The user-facing functions are loaded from a separate file so that
 812 # test_perf subshells can have them too
 813 . "$TEST_DIRECTORY/test-lib-functions.sh"
 814
 815 # You are not expected to call test_ok_ and test_failure_ directly, use
 816 # the test_expect_* functions instead.
 817
 818 test_ok_ () {
 819         test_success=$(($test_success + 1))
 820         say_color "" "ok $test_count - $@"
 821         finalize_test_case_output ok "$@"
 822 }
 823
 824 _invert_exit_code_failure_end_blurb () {
 825         say_color warn "# faked up failures as TODO & now exiting with 0 due to --invert-exit-code"
 826 }
 827
 828 test_failure_ () {
 829         failure_label=$1
 830         test_failure=$(($test_failure + 1))
 831         local pfx=""
 832         if test -n "$invert_exit_code" # && test -n "$HARNESS_ACTIVE"
 833         then
 834                 pfx="# TODO induced breakage (--invert-exit-code):"
 835         fi
 836         say_color error "not ok $test_count - ${pfx:+$pfx }$1"
 837         shift
 838         printf '%s\n' "$*" | sed -e 's/^/#      /'
 839         if test -n "$immediate"
 840         then
 841                 say_color error "1..$test_count"
 842                 if test -n "$invert_exit_code"
 843                 then
 844                         finalize_test_output
 845                         _invert_exit_code_failure_end_blurb
 846                         GIT_EXIT_OK=t
 847                         exit 0
 848                 fi
 849                 _error_exit
 850         fi
 851         finalize_test_case_output failure "$failure_label" "$@"
 852 }
 853
 854 test_known_broken_ok_ () {
 855         test_fixed=$(($test_fixed+1))
 856         say_color error "ok $test_count - $1 # TODO known breakage vanished"
 857         finalize_test_case_output fixed "$1"
 858 }
 859
 860 test_known_broken_failure_ () {
 861         test_broken=$(($test_broken+1))
 862         say_color warn "not ok $test_count - $1 # TODO known breakage"
 863         finalize_test_case_output broken "$1"
 864 }
 865
 866 test_debug () {
 867         test "$debug" = "" || eval "$1"
 868 }
 869
 870 match_pattern_list () {
 871         arg="$1"
 872         shift
 873         test -z "$*" && return 1
 874         # We need to use "$*" to get field-splitting, but we want to
 875         # disable globbing, since we are matching against an arbitrary
 876         # $arg, not what's in the filesystem. Using "set -f" accomplishes
 877         # that, but we must do it in a subshell to avoid impacting the
 878         # rest of the script. The exit value of the subshell becomes
 879         # the function's return value.
 880         (
 881                 set -f
 882                 for pattern_ in $*
 883                 do
 884                         case "$arg" in
 885                         $pattern_)
 886                                 exit 0
 887                                 ;;
 888                         esac
 889                 done
 890                 exit 1
 891         )
 892 }
 893
 894 match_test_selector_list () {
 895         operation="$1"
 896         shift
 897         title="$1"
 898         shift
 899         arg="$1"
 900         shift
 901         test -z "$1" && return 0
 902
 903         # Commas are accepted as separators.
 904         OLDIFS=$IFS
 905         IFS=','
 906         set -- $1
 907         IFS=$OLDIFS
 908
 909         # If the first selector is negative we include by default.
 910         include=
 911         case "$1" in
 912                 !*) include=t ;;
 913         esac
 914
 915         for selector
 916         do
 917                 orig_selector=$selector
 918
 919                 positive=t
 920                 case "$selector" in
 921                         !*)
 922                                 positive=
 923                                 selector=${selector##?}
 924                                 ;;
 925                 esac
 926
 927                 test -z "$selector" && continue
 928
 929                 case "$selector" in
 930                         *-*)
 931                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 932                                 then
 933                                         echo "error: $operation: invalid non-numeric in range" \
 934                                                 "start: '$orig_selector'" >&2
 935                                         exit 1
 936                                 fi
 937                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 938                                 then
 939                                         echo "error: $operation: invalid non-numeric in range" \
 940                                                 "end: '$orig_selector'" >&2
 941                                         exit 1
 942                                 fi
 943                                 ;;
 944                         *)
 945                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 946                                 then
 947                                         case "$title" in *${selector}*)
 948                                                 include=$positive
 949                                                 ;;
 950                                         esac
 951                                         continue
 952                                 fi
 953                 esac
 954
 955                 # Short cut for "obvious" cases
 956                 test -z "$include" && test -z "$positive" && continue
 957                 test -n "$include" && test -n "$positive" && continue
 958
 959                 case "$selector" in
 960                         -*)
 961                                 if test $arg -le ${selector#-}
 962                                 then
 963                                         include=$positive
 964                                 fi
 965                                 ;;
 966                         *-)
 967                                 if test $arg -ge ${selector%-}
 968                                 then
 969                                         include=$positive
 970                                 fi
 971                                 ;;
 972                         *-*)
 973                                 if test ${selector%%-*} -le $arg \
 974                                         && test $arg -le ${selector#*-}
 975                                 then
 976                                         include=$positive
 977                                 fi
 978                                 ;;
 979                         *)
 980                                 if test $arg -eq $selector
 981                                 then
 982                                         include=$positive
 983                                 fi
 984                                 ;;
 985                 esac
 986         done
 987
 988         test -n "$include"
 989 }
 990
 991 maybe_teardown_verbose () {
 992         test -z "$verbose_only" && return
 993         exec 4>/dev/null 3>/dev/null
 994         verbose=
 995 }
 996
 997 last_verbose=t
 998 maybe_setup_verbose () {
 999         test -z "$verbose_only" && return
1000         if match_pattern_list $test_count "$verbose_only"
1001         then
1002                 exec 4>&2 3>&1
1003                 # Emit a delimiting blank line when going from
1004                 # non-verbose to verbose.  Within verbose mode the
1005                 # delimiter is printed by test_expect_*.  The choice
1006                 # of the initial $last_verbose is such that before
1007                 # test 1, we do not print it.
1008                 test -z "$last_verbose" && echo >&3 ""
1009                 verbose=t
1010         else
1011                 exec 4>/dev/null 3>/dev/null
1012                 verbose=
1013         fi
1014         last_verbose=$verbose
1015 }
1016
1017 maybe_teardown_valgrind () {
1018         test -z "$GIT_VALGRIND" && return
1019         GIT_VALGRIND_ENABLED=
1020 }
1021
1022 maybe_setup_valgrind () {
1023         test -z "$GIT_VALGRIND" && return
1024         if test -z "$valgrind_only"
1025         then
1026                 GIT_VALGRIND_ENABLED=t
1027                 return
1028         fi
1029         GIT_VALGRIND_ENABLED=
1030         if match_pattern_list $test_count "$valgrind_only"
1031         then
1032                 GIT_VALGRIND_ENABLED=t
1033         fi
1034 }
1035
1036 trace_level_=0
1037 want_trace () {
1038         test "$trace" = t && {
1039                 test "$verbose" = t || test "$verbose_log" = t
1040         }
1041 }
1042
1043 # This is a separate function because some tests use
1044 # "return" to end a test_expect_success block early
1045 # (and we want to make sure we run any cleanup like
1046 # "set +x").
1047 test_eval_inner_ () {
1048         eval "$*"
1049 }
1050
1051 test_eval_ () {
1052         # If "-x" tracing is in effect, then we want to avoid polluting stderr
1053         # with non-test commands. But once in "set -x" mode, we cannot prevent
1054         # the shell from printing the "set +x" to turn it off (nor the saving
1055         # of $? before that). But we can make sure that the output goes to
1056         # /dev/null.
1057         #
1058         # There are a few subtleties here:
1059         #
1060         #   - we have to redirect descriptor 4 in addition to 2, to cover
1061         #     BASH_XTRACEFD
1062         #
1063         #   - the actual eval has to come before the redirection block (since
1064         #     it needs to see descriptor 4 to set up its stderr)
1065         #
1066         #   - likewise, any error message we print must be outside the block to
1067         #     access descriptor 4
1068         #
1069         #   - checking $? has to come immediately after the eval, but it must
1070         #     be _inside_ the block to avoid polluting the "set -x" output
1071         #
1072
1073         # Do not add anything extra (including LF) after '$*'
1074         test_eval_inner_ </dev/null >&3 2>&4 "
1075                 want_trace && trace_level_=$(($trace_level_+1)) && set -x
1076                 $*"
1077         {
1078                 test_eval_ret_=$?
1079                 if want_trace
1080                 then
1081                         test 1 = $trace_level_ && set +x
1082                         trace_level_=$(($trace_level_-1))
1083                 fi
1084         } 2>/dev/null 4>&2
1085
1086         if test "$test_eval_ret_" != 0 && want_trace
1087         then
1088                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
1089         fi
1090         return $test_eval_ret_
1091 }
1092
1093 fail_117 () {
1094         return 117
1095 }
1096
1097 test_run_ () {
1098         test_cleanup=:
1099         expecting_failure=$2
1100
1101         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
1102                 # 117 is magic because it is unlikely to match the exit
1103                 # code of other programs
1104                 test_eval_inner_ "fail_117 && $1" </dev/null >&3 2>&4
1105                 if test $? != 117
1106                 then
1107                         BUG "broken &&-chain: $1"
1108                 fi
1109         fi
1110
1111         setup_malloc_check
1112         test_eval_ "$1"
1113         eval_ret=$?
1114         teardown_malloc_check
1115
1116         if test -z "$immediate" || test $eval_ret = 0 ||
1117            test -n "$expecting_failure" && test "$test_cleanup" != ":"
1118         then
1119                 setup_malloc_check
1120                 test_eval_ "$test_cleanup"
1121                 teardown_malloc_check
1122         fi
1123         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
1124         then
1125                 echo ""
1126         fi
1127         return "$eval_ret"
1128 }
1129
1130 test_start_ () {
1131         test_count=$(($test_count+1))
1132         maybe_setup_verbose
1133         maybe_setup_valgrind
1134         start_test_case_output "$@"
1135 }
1136
1137 test_finish_ () {
1138         echo >&3 ""
1139         maybe_teardown_valgrind
1140         maybe_teardown_verbose
1141         if test -n "$GIT_TEST_TEE_OFFSET"
1142         then
1143                 GIT_TEST_TEE_OFFSET=$(test-tool path-utils file-size \
1144                         "$GIT_TEST_TEE_OUTPUT_FILE")
1145         fi
1146 }
1147
1148 test_skip () {
1149         to_skip=
1150         skipped_reason=
1151         if match_pattern_list $this_test.$test_count "$GIT_SKIP_TESTS"
1152         then
1153                 to_skip=t
1154                 skipped_reason="GIT_SKIP_TESTS"
1155         fi
1156         if test -z "$to_skip" && test -n "$run_list" &&
1157            ! match_test_selector_list '--run' "$1" $test_count "$run_list"
1158         then
1159                 to_skip=t
1160                 skipped_reason="--run"
1161         fi
1162         if test -z "$to_skip" && test -n "$test_prereq" &&
1163            ! test_have_prereq "$test_prereq"
1164         then
1165                 to_skip=t
1166
1167                 of_prereq=
1168                 if test "$missing_prereq" != "$test_prereq"
1169                 then
1170                         of_prereq=" of $test_prereq"
1171                 fi
1172                 skipped_reason="missing $missing_prereq${of_prereq}"
1173
1174                 # Keep a list of all the missing prereq for result aggregation
1175                 if test -z "$missing_prereq"
1176                 then
1177                         test_missing_prereq=$missing_prereq
1178                 else
1179                         test_missing_prereq="$test_missing_prereq,$missing_prereq"
1180                 fi
1181         fi
1182
1183         case "$to_skip" in
1184         t)
1185
1186                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
1187                 : true
1188                 finalize_test_case_output skip "$@"
1189                 ;;
1190         *)
1191                 false
1192                 ;;
1193         esac
1194 }
1195
1196 # stub; perf-lib overrides it
1197 test_at_end_hook_ () {
1198         :
1199 }
1200
1201 test_atexit_cleanup=:
1202 test_atexit_handler () {
1203         # In a succeeding test script 'test_atexit_handler' is invoked
1204         # twice: first from 'test_done', then from 'die' in the trap on
1205         # EXIT.
1206         # This condition and resetting 'test_atexit_cleanup' below makes
1207         # sure that the registered cleanup commands are run only once.
1208         test : != "$test_atexit_cleanup" || return 0
1209
1210         setup_malloc_check
1211         test_eval_ "$test_atexit_cleanup"
1212         test_atexit_cleanup=:
1213         teardown_malloc_check
1214 }
1215
1216 sanitize_leak_log_message_ () {
1217         local new="$1" &&
1218         local old="$2" &&
1219         local file="$3" &&
1220
1221         printf "With SANITIZE=leak at exit we have %d leak logs, but started with %d
1222
1223 This means that we have a blindspot where git is leaking but we're
1224 losing the exit code somewhere, or not propagating it appropriately
1225 upwards!
1226
1227 See the logs at \"%s.*\";
1228 those logs are reproduced below." \
1229                "$new" "$old" "$file"
1230 }
1231
1232 check_test_results_san_file_ () {
1233         if test -z "$TEST_RESULTS_SAN_FILE"
1234         then
1235                 return
1236         fi &&
1237         local old="$TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP" &&
1238         local new="$(nr_san_dir_leaks_)" &&
1239
1240         if test $new -le $old
1241         then
1242                 return
1243         fi &&
1244         local out="$(sanitize_leak_log_message_ "$new" "$old" "$TEST_RESULTS_SAN_FILE")" &&
1245         say_color error "$out" &&
1246         if test "$old" != 0
1247         then
1248                 echo &&
1249                 say_color error "The logs include output from past runs to avoid" &&
1250                 say_color error "that remove 'test-results' between runs."
1251         fi &&
1252         say_color error "$(cat "$TEST_RESULTS_SAN_FILE".*)" &&
1253
1254         if test -n "$passes_sanitize_leak" && test "$test_failure" = 0
1255         then
1256                 say "As TEST_PASSES_SANITIZE_LEAK=true and our logs show we're leaking, exit non-zero!" &&
1257                 invert_exit_code=t
1258         elif test -n "$passes_sanitize_leak"
1259         then
1260                 say "As TEST_PASSES_SANITIZE_LEAK=true and our logs show we're leaking, and we're failing for other reasons too..." &&
1261                 invert_exit_code=
1262         elif test -n "$sanitize_leak_check" && test "$test_failure" = 0
1263         then
1264                 say "As TEST_PASSES_SANITIZE_LEAK=true isn't set the above leak is 'ok' with GIT_TEST_PASSING_SANITIZE_LEAK=check" &&
1265                 invert_exit_code=
1266         elif test -n "$sanitize_leak_check"
1267         then
1268                 say "As TEST_PASSES_SANITIZE_LEAK=true isn't set the above leak is 'ok' with GIT_TEST_PASSING_SANITIZE_LEAK=check" &&
1269                 invert_exit_code=t
1270         else
1271                 say "With GIT_TEST_SANITIZE_LEAK_LOG=true our logs revealed a memory leak, exit non-zero!" &&
1272                 invert_exit_code=t
1273         fi
1274 }
1275
1276 test_done () {
1277         # Run the atexit commands _before_ the trash directory is
1278         # removed, so the commands can access pidfiles and socket files.
1279         test_atexit_handler
1280
1281         finalize_test_output
1282
1283         if test -z "$HARNESS_ACTIVE"
1284         then
1285                 mkdir -p "$TEST_RESULTS_DIR"
1286
1287                 cat >"$TEST_RESULTS_BASE.counts" <<-EOF
1288                 total $test_count
1289                 success $test_success
1290                 fixed $test_fixed
1291                 broken $test_broken
1292                 failed $test_failure
1293                 missing_prereq $test_missing_prereq
1294
1295                 EOF
1296         fi
1297
1298         if test "$test_fixed" != 0
1299         then
1300                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
1301         fi
1302         if test "$test_broken" != 0
1303         then
1304                 say_color warn "# still have $test_broken known breakage(s)"
1305         fi
1306         if test "$test_broken" != 0 || test "$test_fixed" != 0
1307         then
1308                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
1309                 msg="remaining $test_remaining test(s)"
1310         else
1311                 test_remaining=$test_count
1312                 msg="$test_count test(s)"
1313         fi
1314         case "$test_failure" in
1315         0)
1316                 if test $test_remaining -gt 0
1317                 then
1318                         say_color pass "# passed all $msg"
1319                 fi
1320
1321                 # Maybe print SKIP message
1322                 test -z "$skip_all" || skip_all="# SKIP $skip_all"
1323                 case "$test_count" in
1324                 0)
1325                         say "1..$test_count${skip_all:+ $skip_all}"
1326                         ;;
1327                 *)
1328                         test -z "$skip_all" ||
1329                         say_color warn "$skip_all"
1330                         say "1..$test_count"
1331                         ;;
1332                 esac
1333
1334                 if test -n "$stress" && test -n "$invert_exit_code"
1335                 then
1336                         # We're about to move our "$TRASH_DIRECTORY"
1337                         # to "$TRASH_DIRECTORY.stress-failed" if
1338                         # --stress is combined with
1339                         # --invert-exit-code.
1340                         say "with --stress and --invert-exit-code we're not removing '$TRASH_DIRECTORY'"
1341                 elif test -z "$debug" && test -n "$remove_trash"
1342                 then
1343                         test -d "$TRASH_DIRECTORY" ||
1344                         error "Tests passed but trash directory already removed before test cleanup; aborting"
1345
1346                         cd "$TRASH_DIRECTORY/.." &&
1347                         rm -fr "$TRASH_DIRECTORY" || {
1348                                 # try again in a bit
1349                                 sleep 5;
1350                                 rm -fr "$TRASH_DIRECTORY"
1351                         } ||
1352                         error "Tests passed but test cleanup failed; aborting"
1353                 fi
1354
1355                 check_test_results_san_file_ "$test_failure"
1356
1357                 if test -z "$skip_all" && test -n "$invert_exit_code"
1358                 then
1359                         say_color warn "# faking up non-zero exit with --invert-exit-code"
1360                         GIT_EXIT_OK=t
1361                         exit 1
1362                 fi
1363
1364                 test_at_end_hook_
1365
1366                 GIT_EXIT_OK=t
1367                 exit 0 ;;
1368
1369         *)
1370                 say_color error "# failed $test_failure among $msg"
1371                 say "1..$test_count"
1372
1373                 check_test_results_san_file_ "$test_failure"
1374
1375                 if test -n "$invert_exit_code"
1376                 then
1377                         _invert_exit_code_failure_end_blurb
1378                         GIT_EXIT_OK=t
1379                         exit 0
1380                 fi
1381
1382                 GIT_EXIT_OK=t
1383                 exit 1 ;;
1384
1385         esac
1386 }
1387
1388 if test -n "$valgrind"
1389 then
1390         make_symlink () {
1391                 test -h "$2" &&
1392                 test "$1" = "$(readlink "$2")" || {
1393                         # be super paranoid
1394                         if mkdir "$2".lock
1395                         then
1396                                 rm -f "$2" &&
1397                                 ln -s "$1" "$2" &&
1398                                 rm -r "$2".lock
1399                         else
1400                                 while test -d "$2".lock
1401                                 do
1402                                         say "Waiting for lock on $2."
1403                                         sleep 1
1404                                 done
1405                         fi
1406                 }
1407         }
1408
1409         make_valgrind_symlink () {
1410                 # handle only executables, unless they are shell libraries that
1411                 # need to be in the exec-path.
1412                 test -x "$1" ||
1413                 test "# " = "$(test_copy_bytes 2 <"$1")" ||
1414                 return;
1415
1416                 base=$(basename "$1")
1417                 case "$base" in
1418                 test-*)
1419                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
1420                         ;;
1421                 *)
1422                         symlink_target="$GIT_BUILD_DIR/$base"
1423                         ;;
1424                 esac
1425                 # do not override scripts
1426                 if test -x "$symlink_target" &&
1427                     test ! -d "$symlink_target" &&
1428                     test "#!" != "$(test_copy_bytes 2 <"$symlink_target")"
1429                 then
1430                         symlink_target=../valgrind.sh
1431                 fi
1432                 case "$base" in
1433                 *.sh|*.perl)
1434                         symlink_target=../unprocessed-script
1435                 esac
1436                 # create the link, or replace it if it is out of date
1437                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
1438         }
1439
1440         # override all git executables in TEST_DIRECTORY/..
1441         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
1442         mkdir -p "$GIT_VALGRIND"/bin
1443         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
1444         do
1445                 make_valgrind_symlink $file
1446         done
1447         # special-case the mergetools loadables
1448         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
1449         OLDIFS=$IFS
1450         IFS=:
1451         for path in $PATH
1452         do
1453                 ls "$path"/git-* 2> /dev/null |
1454                 while read file
1455                 do
1456                         make_valgrind_symlink "$file"
1457                 done
1458         done
1459         IFS=$OLDIFS
1460         PATH=$GIT_VALGRIND/bin:$PATH
1461         GIT_EXEC_PATH=$GIT_VALGRIND/bin
1462         export GIT_VALGRIND
1463         GIT_VALGRIND_MODE="$valgrind"
1464         export GIT_VALGRIND_MODE
1465         GIT_VALGRIND_ENABLED=t
1466         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
1467         export GIT_VALGRIND_ENABLED
1468 elif test -n "$GIT_TEST_INSTALLED"
1469 then
1470         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
1471         error "Cannot run git from $GIT_TEST_INSTALLED."
1472         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$PATH
1473         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
1474 else # normal case, use ../bin-wrappers only unless $with_dashes:
1475         if test -n "$no_bin_wrappers"
1476         then
1477                 with_dashes=t
1478         else
1479                 git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
1480                 if ! test -x "$git_bin_dir/git"
1481                 then
1482                         if test -z "$with_dashes"
1483                         then
1484                                 say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
1485                         fi
1486                         with_dashes=t
1487                 fi
1488                 PATH="$git_bin_dir:$PATH"
1489         fi
1490         GIT_EXEC_PATH=$GIT_BUILD_DIR
1491         if test -n "$with_dashes"
1492         then
1493                 PATH="$GIT_BUILD_DIR:$GIT_BUILD_DIR/t/helper:$PATH"
1494         fi
1495 fi
1496 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
1497 GIT_CONFIG_NOSYSTEM=1
1498 GIT_ATTR_NOSYSTEM=1
1499 GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/.."
1500 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM GIT_CEILING_DIRECTORIES
1501
1502 if test -z "$GIT_TEST_CMP"
1503 then
1504         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
1505         then
1506                 GIT_TEST_CMP="$DIFF -c"
1507         else
1508                 GIT_TEST_CMP="$DIFF -u"
1509         fi
1510 fi
1511
1512 GITPERLLIB="$GIT_BUILD_DIR"/perl/build/lib
1513 export GITPERLLIB
1514 test -d "$GIT_BUILD_DIR"/templates/blt || {
1515         BAIL_OUT "You haven't built things yet, have you?"
1516 }
1517
1518 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
1519 then
1520         BAIL_OUT 'You need to build test-tool; Run "make t/helper/test-tool" in the source (toplevel) directory'
1521 fi
1522
1523 # Are we running this test at all?
1524 remove_trash=
1525 this_test=${0##*/}
1526 this_test=${this_test%%-*}
1527 if match_pattern_list "$this_test" "$GIT_SKIP_TESTS"
1528 then
1529         say_color info >&3 "skipping test $this_test altogether"
1530         skip_all="skip all tests in $this_test"
1531         test_done
1532 fi
1533
1534 BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK () {
1535         BAIL_OUT "$1 has no effect except when compiled with SANITIZE=leak"
1536 }
1537
1538 if test -n "$SANITIZE_LEAK"
1539 then
1540         # Normalize with test_bool_env
1541         passes_sanitize_leak=
1542
1543         # We need to see TEST_PASSES_SANITIZE_LEAK in "test-tool
1544         # env-helper" (via test_bool_env)
1545         export TEST_PASSES_SANITIZE_LEAK
1546         if test_bool_env TEST_PASSES_SANITIZE_LEAK false
1547         then
1548                 passes_sanitize_leak=t
1549         fi
1550
1551         if test "$GIT_TEST_PASSING_SANITIZE_LEAK" = "check"
1552         then
1553                 sanitize_leak_check=t
1554                 if test -n "$invert_exit_code"
1555                 then
1556                         BAIL_OUT "cannot use --invert-exit-code under GIT_TEST_PASSING_SANITIZE_LEAK=check"
1557                 fi
1558
1559                 if test -z "$passes_sanitize_leak"
1560                 then
1561                         say "in GIT_TEST_PASSING_SANITIZE_LEAK=check mode, setting --invert-exit-code for TEST_PASSES_SANITIZE_LEAK != true"
1562                         invert_exit_code=t
1563                 fi
1564         elif test -z "$passes_sanitize_leak" &&
1565              test_bool_env GIT_TEST_PASSING_SANITIZE_LEAK false
1566         then
1567                 skip_all="skipping $this_test under GIT_TEST_PASSING_SANITIZE_LEAK=true"
1568                 test_done
1569         fi
1570
1571         if test_bool_env GIT_TEST_SANITIZE_LEAK_LOG false
1572         then
1573                 if ! mkdir -p "$TEST_RESULTS_SAN_DIR"
1574                 then
1575                         BAIL_OUT "cannot create $TEST_RESULTS_SAN_DIR"
1576                 fi &&
1577                 TEST_RESULTS_SAN_FILE="$TEST_RESULTS_SAN_DIR/$TEST_RESULTS_SAN_FILE_PFX"
1578
1579                 # In case "test-results" is left over from a previous
1580                 # run: Only report if new leaks show up.
1581                 TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP=$(nr_san_dir_leaks_)
1582
1583                 # Don't litter *.leak dirs if there was nothing to report
1584                 test_atexit "rmdir \"$TEST_RESULTS_SAN_DIR\" 2>/dev/null || :"
1585
1586                 prepend_var LSAN_OPTIONS : dedup_token_length=9999
1587                 prepend_var LSAN_OPTIONS : log_exe_name=1
1588                 prepend_var LSAN_OPTIONS : log_path=\"$TEST_RESULTS_SAN_FILE\"
1589                 export LSAN_OPTIONS
1590         fi
1591 elif test "$GIT_TEST_PASSING_SANITIZE_LEAK" = "check" ||
1592      test_bool_env GIT_TEST_PASSING_SANITIZE_LEAK false
1593 then
1594         BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK "GIT_TEST_PASSING_SANITIZE_LEAK=true"
1595 elif test_bool_env GIT_TEST_SANITIZE_LEAK_LOG false
1596 then
1597         BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK "GIT_TEST_SANITIZE_LEAK_LOG=true"
1598 fi
1599
1600 if test "${GIT_TEST_CHAIN_LINT:-1}" != 0 &&
1601    test "${GIT_TEST_EXT_CHAIN_LINT:-1}" != 0
1602 then
1603         "$PERL_PATH" "$TEST_DIRECTORY/chainlint.pl" "$0" ||
1604                 BUG "lint error (see '?!...!? annotations above)"
1605 fi
1606
1607 # Last-minute variable setup
1608 USER_HOME="$HOME"
1609 HOME="$TRASH_DIRECTORY"
1610 GNUPGHOME="$HOME/gnupg-home-not-used"
1611 export HOME GNUPGHOME USER_HOME
1612
1613 # "rm -rf" existing trash directory, even if a previous run left it
1614 # with bad permissions.
1615 remove_trash_directory () {
1616         dir="$1"
1617         if ! rm -rf "$dir" 2>/dev/null
1618         then
1619                 chmod -R u+rwx "$dir"
1620                 rm -rf "$dir"
1621         fi
1622         ! test -d "$dir"
1623 }
1624
1625 # Test repository
1626 remove_trash_directory "$TRASH_DIRECTORY" || {
1627         BAIL_OUT 'cannot prepare test area'
1628 }
1629
1630 remove_trash=t
1631 if test -z "$TEST_NO_CREATE_REPO"
1632 then
1633         git init \
1634             ${TEST_CREATE_REPO_NO_TEMPLATE:+--template=} \
1635             "$TRASH_DIRECTORY" >&3 2>&4 ||
1636         error "cannot run git init"
1637 else
1638         mkdir -p "$TRASH_DIRECTORY"
1639 fi
1640
1641 # Use -P to resolve symlinks in our working directory so that the cwd
1642 # in subprocesses like git equals our $PWD (for pathname comparisons).
1643 cd -P "$TRASH_DIRECTORY" || BAIL_OUT "cannot cd -P to \"$TRASH_DIRECTORY\""
1644
1645 start_test_output "$0"
1646
1647 # Convenience
1648 # A regexp to match 5 and 35 hexdigits
1649 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
1650 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
1651
1652 test_oid_init
1653
1654 ZERO_OID=$(test_oid zero)
1655 OID_REGEX=$(echo $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
1656 OIDPATH_REGEX=$(test_oid_to_path $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
1657 EMPTY_TREE=$(test_oid empty_tree)
1658 EMPTY_BLOB=$(test_oid empty_blob)
1659
1660 # Provide an implementation of the 'yes' utility; the upper bound
1661 # limit is there to help Windows that cannot stop this loop from
1662 # wasting cycles when the downstream stops reading, so do not be
1663 # tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
1664 # limit the output of the yes utility", 2016-02-02)
1665 yes () {
1666         if test $# = 0
1667         then
1668                 y=y
1669         else
1670                 y="$*"
1671         fi
1672
1673         i=0
1674         while test $i -lt 99
1675         do
1676                 echo "$y"
1677                 i=$(($i+1))
1678         done
1679 }
1680
1681 # The GIT_TEST_FAIL_PREREQS code hooks into test_set_prereq(), and
1682 # thus needs to be set up really early, and set an internal variable
1683 # for convenience so the hot test_set_prereq() codepath doesn't need
1684 # to call "test-tool env-helper" (via test_bool_env). Only do that work
1685 # if needed by seeing if GIT_TEST_FAIL_PREREQS is set at all.
1686 GIT_TEST_FAIL_PREREQS_INTERNAL=
1687 if test -n "$GIT_TEST_FAIL_PREREQS"
1688 then
1689         if test_bool_env GIT_TEST_FAIL_PREREQS false
1690         then
1691                 GIT_TEST_FAIL_PREREQS_INTERNAL=true
1692                 test_set_prereq FAIL_PREREQS
1693         fi
1694 else
1695         test_lazy_prereq FAIL_PREREQS '
1696                 test_bool_env GIT_TEST_FAIL_PREREQS false
1697         '
1698 fi
1699
1700 # Fix some commands on Windows, and other OS-specific things
1701 uname_s=$(uname -s)
1702 case $uname_s in
1703 *MINGW*)
1704         # Windows has its own (incompatible) sort and find
1705         sort () {
1706                 /usr/bin/sort "$@"
1707         }
1708         find () {
1709                 /usr/bin/find "$@"
1710         }
1711         # git sees Windows-style pwd
1712         pwd () {
1713                 builtin pwd -W
1714         }
1715         # no POSIX permissions
1716         # backslashes in pathspec are converted to '/'
1717         # exec does not inherit the PID
1718         test_set_prereq MINGW
1719         test_set_prereq NATIVE_CRLF
1720         test_set_prereq SED_STRIPS_CR
1721         test_set_prereq GREP_STRIPS_CR
1722         test_set_prereq WINDOWS
1723         GIT_TEST_CMP="GIT_DIR=/dev/null git diff --no-index --ignore-cr-at-eol --"
1724         ;;
1725 *CYGWIN*)
1726         test_set_prereq POSIXPERM
1727         test_set_prereq EXECKEEPSPID
1728         test_set_prereq CYGWIN
1729         test_set_prereq SED_STRIPS_CR
1730         test_set_prereq GREP_STRIPS_CR
1731         test_set_prereq WINDOWS
1732         ;;
1733 *)
1734         test_set_prereq POSIXPERM
1735         test_set_prereq BSLASHPSPEC
1736         test_set_prereq EXECKEEPSPID
1737         ;;
1738 esac
1739
1740 # Detect arches where a few things don't work
1741 uname_m=$(uname -m)
1742 case $uname_m in
1743 parisc* | hppa*)
1744         test_set_prereq HPPA
1745         ;;
1746 esac
1747
1748 test_set_prereq REFFILES
1749
1750 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1751 test -z "$NO_CURL" && test_set_prereq LIBCURL
1752 test -z "$NO_PERL" && test_set_prereq PERL
1753 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1754 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1755 test -n "$USE_LIBPCRE2" && test_set_prereq PCRE
1756 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1757 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1758 test -n "$SANITIZE_LEAK" && test_set_prereq SANITIZE_LEAK
1759 test -n "$GIT_VALGRIND_ENABLED" && test_set_prereq VALGRIND
1760
1761 if test -z "$GIT_TEST_CHECK_CACHE_TREE"
1762 then
1763         GIT_TEST_CHECK_CACHE_TREE=true
1764         export GIT_TEST_CHECK_CACHE_TREE
1765 fi
1766
1767 test_lazy_prereq PIPE '
1768         # test whether the filesystem supports FIFOs
1769         test_have_prereq !MINGW,!CYGWIN &&
1770         rm -f testfifo && mkfifo testfifo
1771 '
1772
1773 test_lazy_prereq SYMLINKS '
1774         # test whether the filesystem supports symbolic links
1775         ln -s x y && test -h y
1776 '
1777
1778 test_lazy_prereq SYMLINKS_WINDOWS '
1779         # test whether symbolic links are enabled on Windows
1780         test_have_prereq MINGW &&
1781         cmd //c "mklink y x" &> /dev/null && test -h y
1782 '
1783
1784 test_lazy_prereq FILEMODE '
1785         test "$(git config --bool core.filemode)" = true
1786 '
1787
1788 test_lazy_prereq CASE_INSENSITIVE_FS '
1789         echo good >CamelCase &&
1790         echo bad >camelcase &&
1791         test "$(cat CamelCase)" != good
1792 '
1793
1794 test_lazy_prereq FUNNYNAMES '
1795         test_have_prereq !MINGW &&
1796         touch -- \
1797                 "FUNNYNAMES tab embedded" \
1798                 "FUNNYNAMES \"quote embedded\"" \
1799                 "FUNNYNAMES newline
1800 embedded" 2>/dev/null &&
1801         rm -- \
1802                 "FUNNYNAMES tab embedded" \
1803                 "FUNNYNAMES \"quote embedded\"" \
1804                 "FUNNYNAMES newline
1805 embedded" 2>/dev/null
1806 '
1807
1808 test_lazy_prereq UTF8_NFD_TO_NFC '
1809         # check whether FS converts nfd unicode to nfc
1810         auml=$(printf "\303\244")
1811         aumlcdiar=$(printf "\141\314\210")
1812         >"$auml" &&
1813         test -f "$aumlcdiar"
1814 '
1815
1816 test_lazy_prereq AUTOIDENT '
1817         sane_unset GIT_AUTHOR_NAME &&
1818         sane_unset GIT_AUTHOR_EMAIL &&
1819         git var GIT_AUTHOR_IDENT
1820 '
1821
1822 test_lazy_prereq EXPENSIVE '
1823         test -n "$GIT_TEST_LONG"
1824 '
1825
1826 test_lazy_prereq EXPENSIVE_ON_WINDOWS '
1827         test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
1828 '
1829
1830 test_lazy_prereq USR_BIN_TIME '
1831         test -x /usr/bin/time
1832 '
1833
1834 test_lazy_prereq NOT_ROOT '
1835         uid=$(id -u) &&
1836         test "$uid" != 0
1837 '
1838
1839 test_lazy_prereq JGIT '
1840         jgit --version
1841 '
1842
1843 # SANITY is about "can you correctly predict what the filesystem would
1844 # do by only looking at the permission bits of the files and
1845 # directories?"  A typical example of !SANITY is running the test
1846 # suite as root, where a test may expect "chmod -r file && cat file"
1847 # to fail because file is supposed to be unreadable after a successful
1848 # chmod.  In an environment (i.e. combination of what filesystem is
1849 # being used and who is running the tests) that lacks SANITY, you may
1850 # be able to delete or create a file when the containing directory
1851 # doesn't have write permissions, or access a file even if the
1852 # containing directory doesn't have read or execute permissions.
1853
1854 test_lazy_prereq SANITY '
1855         mkdir SANETESTD.1 SANETESTD.2 &&
1856
1857         chmod +w SANETESTD.1 SANETESTD.2 &&
1858         >SANETESTD.1/x 2>SANETESTD.2/x &&
1859         chmod -w SANETESTD.1 &&
1860         chmod -r SANETESTD.1/x &&
1861         chmod -rx SANETESTD.2 ||
1862         BUG "cannot prepare SANETESTD"
1863
1864         ! test -r SANETESTD.1/x &&
1865         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1866         status=$?
1867
1868         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1869         rm -rf SANETESTD.1 SANETESTD.2 ||
1870         BUG "cannot clean SANETESTD"
1871         return $status
1872 '
1873
1874 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1875 GIT_UNZIP=${GIT_UNZIP:-unzip}
1876 test_lazy_prereq UNZIP '
1877         "$GIT_UNZIP" -v
1878         test $? -ne 127
1879 '
1880
1881 run_with_limited_cmdline () {
1882         (ulimit -s 128 && "$@")
1883 }
1884
1885 test_lazy_prereq CMDLINE_LIMIT '
1886         test_have_prereq !HPPA,!MINGW,!CYGWIN &&
1887         run_with_limited_cmdline true
1888 '
1889
1890 run_with_limited_stack () {
1891         (ulimit -s 128 && "$@")
1892 }
1893
1894 test_lazy_prereq ULIMIT_STACK_SIZE '
1895         test_have_prereq !HPPA,!MINGW,!CYGWIN &&
1896         run_with_limited_stack true
1897 '
1898
1899 run_with_limited_open_files () {
1900         (ulimit -n 32 && "$@")
1901 }
1902
1903 test_lazy_prereq ULIMIT_FILE_DESCRIPTORS '
1904         test_have_prereq !MINGW,!CYGWIN &&
1905         run_with_limited_open_files true
1906 '
1907
1908 build_option () {
1909         git version --build-options |
1910         sed -ne "s/^$1: //p"
1911 }
1912
1913 test_lazy_prereq SIZE_T_IS_64BIT '
1914         test 8 -eq "$(build_option sizeof-size_t)"
1915 '
1916
1917 test_lazy_prereq LONG_IS_64BIT '
1918         test 8 -le "$(build_option sizeof-long)"
1919 '
1920
1921 test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
1922 test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
1923
1924 test_lazy_prereq CURL '
1925         curl --version
1926 '
1927
1928 # SHA1 is a test if the hash algorithm in use is SHA-1.  This is both for tests
1929 # which will not work with other hash algorithms and tests that work but don't
1930 # test anything meaningful (e.g. special values which cause short collisions).
1931 test_lazy_prereq SHA1 '
1932         case "$GIT_DEFAULT_HASH" in
1933         sha1) true ;;
1934         "") test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 ;;
1935         *) false ;;
1936         esac
1937 '
1938
1939 # Ensure that no test accidentally triggers a Git command
1940 # that runs the actual maintenance scheduler, affecting a user's
1941 # system permanently.
1942 # Tests that verify the scheduler integration must set this locally
1943 # to avoid errors.
1944 GIT_TEST_MAINT_SCHEDULER="none:exit 1"
1945
1946 # Does this platform support `git fsmonitor--daemon`
1947 #
1948 test_lazy_prereq FSMONITOR_DAEMON '
1949         git version --build-options >output &&
1950         grep "feature: fsmonitor--daemon" output
1951 '