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 : $GIT_SAN_OPTIONS
  89 prepend_var LSAN_OPTIONS : fast_unwind_on_malloc=0
  90 export LSAN_OPTIONS
  91
  92 if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  93 then
  94         echo >&2 'error: GIT-BUILD-OPTIONS missing (has Git been built?).'
  95         exit 1
  96 fi
  97 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  98 export PERL_PATH SHELL_PATH
  99
 100 # In t0000, we need to override test directories of nested testcases. In case
 101 # the developer has TEST_OUTPUT_DIRECTORY part of his build options, then we'd
 102 # reset this value to instead contain what the developer has specified. We thus
 103 # have this knob to allow overriding the directory.
 104 if test -n "${TEST_OUTPUT_DIRECTORY_OVERRIDE}"
 105 then
 106         TEST_OUTPUT_DIRECTORY="${TEST_OUTPUT_DIRECTORY_OVERRIDE}"
 107 fi
 108
 109 # Disallow the use of abbreviated options in the test suite by default
 110 if test -z "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS}"
 111 then
 112         GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
 113         export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
 114 fi
 115
 116 # Explicitly set the default branch name for testing, to avoid the
 117 # transitory "git init" warning under --verbose.
 118 : ${GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME:=master}
 119 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 120
 121 ################################################################
 122 # It appears that people try to run tests without building...
 123 "${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
 124 if test $? != 1
 125 then
 126         if test -n "$GIT_TEST_INSTALLED"
 127         then
 128                 echo >&2 "error: there is no working Git at '$GIT_TEST_INSTALLED'"
 129         else
 130                 echo >&2 'error: you do not seem to have built git yet.'
 131         fi
 132         exit 1
 133 fi
 134
 135 store_arg_to=
 136 opt_required_arg=
 137 # $1: option string
 138 # $2: name of the var where the arg will be stored
 139 mark_option_requires_arg () {
 140         if test -n "$opt_required_arg"
 141         then
 142                 echo "error: options that require args cannot be bundled" \
 143                         "together: '$opt_required_arg' and '$1'" >&2
 144                 exit 1
 145         fi
 146         opt_required_arg=$1
 147         store_arg_to=$2
 148 }
 149
 150 # These functions can be overridden e.g. to output JUnit XML
 151 start_test_output () { :; }
 152 start_test_case_output () { :; }
 153 finalize_test_case_output () { :; }
 154 finalize_test_output () { :; }
 155
 156 parse_option () {
 157         local opt="$1"
 158
 159         case "$opt" in
 160         -d|--d|--de|--deb|--debu|--debug)
 161                 debug=t ;;
 162         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 163                 immediate=t ;;
 164         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 165                 GIT_TEST_LONG=t; export GIT_TEST_LONG ;;
 166         -r)
 167                 mark_option_requires_arg "$opt" run_list
 168                 ;;
 169         --run=*)
 170                 run_list=${opt#--*=} ;;
 171         -h|--h|--he|--hel|--help)
 172                 help=t ;;
 173         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 174                 verbose=t ;;
 175         --verbose-only=*)
 176                 verbose_only=${opt#--*=}
 177                 ;;
 178         -q|--q|--qu|--qui|--quie|--quiet)
 179                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 180                 # passed without the ok/not ok details is always an error.
 181                 test -z "$HARNESS_ACTIVE" && quiet=t ;;
 182         --with-dashes)
 183                 with_dashes=t ;;
 184         --no-bin-wrappers)
 185                 no_bin_wrappers=t ;;
 186         --no-color)
 187                 color= ;;
 188         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 189                 valgrind=memcheck
 190                 tee=t
 191                 ;;
 192         --valgrind=*)
 193                 valgrind=${opt#--*=}
 194                 tee=t
 195                 ;;
 196         --valgrind-only=*)
 197                 valgrind_only=${opt#--*=}
 198                 tee=t
 199                 ;;
 200         --tee)
 201                 tee=t ;;
 202         --root=*)
 203                 root=${opt#--*=} ;;
 204         --chain-lint)
 205                 GIT_TEST_CHAIN_LINT=1 ;;
 206         --no-chain-lint)
 207                 GIT_TEST_CHAIN_LINT=0 ;;
 208         -x)
 209                 trace=t ;;
 210         -V|--verbose-log)
 211                 verbose_log=t
 212                 tee=t
 213                 ;;
 214         --write-junit-xml)
 215                 . "$TEST_DIRECTORY/test-lib-junit.sh"
 216                 ;;
 217         --github-workflow-markup)
 218                 . "$TEST_DIRECTORY/test-lib-github-workflow-markup.sh"
 219                 ;;
 220         --stress)
 221                 stress=t ;;
 222         --stress=*)
 223                 echo "error: --stress does not accept an argument: '$opt'" >&2
 224                 echo "did you mean --stress-jobs=${opt#*=} or --stress-limit=${opt#*=}?" >&2
 225                 exit 1
 226                 ;;
 227         --stress-jobs=*)
 228                 stress=t;
 229                 stress_jobs=${opt#--*=}
 230                 case "$stress_jobs" in
 231                 *[!0-9]*|0*|"")
 232                         echo "error: --stress-jobs=<N> requires the number of jobs to run" >&2
 233                         exit 1
 234                         ;;
 235                 *)      # Good.
 236                         ;;
 237                 esac
 238                 ;;
 239         --stress-limit=*)
 240                 stress=t;
 241                 stress_limit=${opt#--*=}
 242                 case "$stress_limit" in
 243                 *[!0-9]*|0*|"")
 244                         echo "error: --stress-limit=<N> requires the number of repetitions" >&2
 245                         exit 1
 246                         ;;
 247                 *)      # Good.
 248                         ;;
 249                 esac
 250                 ;;
 251         --invert-exit-code)
 252                 invert_exit_code=t
 253                 ;;
 254         *)
 255                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 256         esac
 257 }
 258
 259 # Parse options while taking care to leave $@ intact, so we will still
 260 # have all the original command line options when executing the test
 261 # script again for '--tee' and '--verbose-log' later.
 262 for opt
 263 do
 264         if test -n "$store_arg_to"
 265         then
 266                 eval $store_arg_to=\$opt
 267                 store_arg_to=
 268                 opt_required_arg=
 269                 continue
 270         fi
 271
 272         case "$opt" in
 273         --*|-?)
 274                 parse_option "$opt" ;;
 275         -?*)
 276                 # bundled short options must be fed separately to parse_option
 277                 opt=${opt#-}
 278                 while test -n "$opt"
 279                 do
 280                         extra=${opt#?}
 281                         this=${opt%$extra}
 282                         opt=$extra
 283                         parse_option "-$this"
 284                 done
 285                 ;;
 286         *)
 287                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 288         esac
 289 done
 290 if test -n "$store_arg_to"
 291 then
 292         echo "error: $opt_required_arg requires an argument" >&2
 293         exit 1
 294 fi
 295
 296 if test -n "$valgrind_only"
 297 then
 298         test -z "$valgrind" && valgrind=memcheck
 299         test -z "$verbose" && verbose_only="$valgrind_only"
 300 elif test -n "$valgrind"
 301 then
 302         test -z "$verbose_log" && verbose=t
 303 fi
 304
 305 if test -n "$stress"
 306 then
 307         verbose=t
 308         trace=t
 309         immediate=t
 310 fi
 311
 312 TEST_STRESS_JOB_SFX="${GIT_TEST_STRESS_JOB_NR:+.stress-$GIT_TEST_STRESS_JOB_NR}"
 313 TEST_NAME="$(basename "$0" .sh)"
 314 TEST_NUMBER="${TEST_NAME%%-*}"
 315 TEST_NUMBER="${TEST_NUMBER#t}"
 316 TEST_RESULTS_DIR="$TEST_OUTPUT_DIRECTORY/test-results"
 317 TEST_RESULTS_BASE="$TEST_RESULTS_DIR/$TEST_NAME$TEST_STRESS_JOB_SFX"
 318 TEST_RESULTS_SAN_FILE_PFX=trace
 319 TEST_RESULTS_SAN_DIR_SFX=leak
 320 TEST_RESULTS_SAN_FILE=
 321 TEST_RESULTS_SAN_DIR="$TEST_RESULTS_DIR/$TEST_NAME.$TEST_RESULTS_SAN_DIR_SFX"
 322 TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP=
 323 TRASH_DIRECTORY="trash directory.$TEST_NAME$TEST_STRESS_JOB_SFX"
 324 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 325 case "$TRASH_DIRECTORY" in
 326 /*) ;; # absolute path is good
 327  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 328 esac
 329
 330 # Utility functions using $TEST_RESULTS_* variables
 331 nr_san_dir_leaks_ () {
 332         # stderr piped to /dev/null because the directory may have
 333         # been "rmdir"'d already.
 334         find "$TEST_RESULTS_SAN_DIR" \
 335                 -type f \
 336                 -name "$TEST_RESULTS_SAN_FILE_PFX.*" 2>/dev/null |
 337         xargs grep -lv "Unable to get registers from thread" |
 338         wc -l
 339 }
 340
 341 # If --stress was passed, run this test repeatedly in several parallel loops.
 342 if test "$GIT_TEST_STRESS_STARTED" = "done"
 343 then
 344         : # Don't stress test again.
 345 elif test -n "$stress"
 346 then
 347         if test -n "$stress_jobs"
 348         then
 349                 job_count=$stress_jobs
 350         elif test -n "$GIT_TEST_STRESS_LOAD"
 351         then
 352                 job_count="$GIT_TEST_STRESS_LOAD"
 353         elif job_count=$(getconf _NPROCESSORS_ONLN 2>/dev/null) &&
 354              test -n "$job_count"
 355         then
 356                 job_count=$((2 * $job_count))
 357         else
 358                 job_count=8
 359         fi
 360
 361         mkdir -p "$TEST_RESULTS_DIR"
 362         stressfail="$TEST_RESULTS_BASE.stress-failed"
 363         rm -f "$stressfail"
 364
 365         stress_exit=0
 366         trap '
 367                 kill $job_pids 2>/dev/null
 368                 wait
 369                 stress_exit=1
 370         ' TERM INT HUP
 371
 372         job_pids=
 373         job_nr=0
 374         while test $job_nr -lt "$job_count"
 375         do
 376                 (
 377                         GIT_TEST_STRESS_STARTED=done
 378                         GIT_TEST_STRESS_JOB_NR=$job_nr
 379                         export GIT_TEST_STRESS_STARTED GIT_TEST_STRESS_JOB_NR
 380
 381                         trap '
 382                                 kill $test_pid 2>/dev/null
 383                                 wait
 384                                 exit 1
 385                         ' TERM INT
 386
 387                         cnt=1
 388                         while ! test -e "$stressfail" &&
 389                               { test -z "$stress_limit" ||
 390                                 test $cnt -le $stress_limit ; }
 391                         do
 392                                 $TEST_SHELL_PATH "$0" "$@" >"$TEST_RESULTS_BASE.stress-$job_nr.out" 2>&1 &
 393                                 test_pid=$!
 394
 395                                 if wait $test_pid
 396                                 then
 397                                         printf "OK   %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 398                                 else
 399                                         echo $GIT_TEST_STRESS_JOB_NR >>"$stressfail"
 400                                         printf "FAIL %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 401                                 fi
 402                                 cnt=$(($cnt + 1))
 403                         done
 404                 ) &
 405                 job_pids="$job_pids $!"
 406                 job_nr=$(($job_nr + 1))
 407         done
 408
 409         wait
 410
 411         if test -f "$stressfail"
 412         then
 413                 stress_exit=1
 414                 echo "Log(s) of failed test run(s):"
 415                 for failed_job_nr in $(sort -n "$stressfail")
 416                 do
 417                         echo "Contents of '$TEST_RESULTS_BASE.stress-$failed_job_nr.out':"
 418                         cat "$TEST_RESULTS_BASE.stress-$failed_job_nr.out"
 419                 done
 420                 rm -rf "$TRASH_DIRECTORY.stress-failed"
 421                 # Move the last one.
 422                 mv "$TRASH_DIRECTORY.stress-$failed_job_nr" "$TRASH_DIRECTORY.stress-failed"
 423         fi
 424
 425         exit $stress_exit
 426 fi
 427
 428 # if --tee was passed, write the output not only to the terminal, but
 429 # additionally to the file test-results/$BASENAME.out, too.
 430 if test "$GIT_TEST_TEE_STARTED" = "done"
 431 then
 432         : # do not redirect again
 433 elif test -n "$tee"
 434 then
 435         mkdir -p "$TEST_RESULTS_DIR"
 436
 437         # Make this filename available to the sub-process in case it is using
 438         # --verbose-log.
 439         GIT_TEST_TEE_OUTPUT_FILE=$TEST_RESULTS_BASE.out
 440         export GIT_TEST_TEE_OUTPUT_FILE
 441
 442         # Truncate before calling "tee -a" to get rid of the results
 443         # from any previous runs.
 444         >"$GIT_TEST_TEE_OUTPUT_FILE"
 445
 446         (GIT_TEST_TEE_STARTED=done ${TEST_SHELL_PATH} "$0" "$@" 2>&1;
 447          echo $? >"$TEST_RESULTS_BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
 448         test "$(cat "$TEST_RESULTS_BASE.exit")" = 0
 449         exit
 450 fi
 451
 452 if test -n "$trace" && test -n "$test_untraceable"
 453 then
 454         # '-x' tracing requested, but this test script can't be reliably
 455         # traced, unless it is run with a Bash version supporting
 456         # BASH_XTRACEFD (introduced in Bash v4.1).
 457         #
 458         # Perform this version check _after_ the test script was
 459         # potentially re-executed with $TEST_SHELL_PATH for '--tee' or
 460         # '--verbose-log', so the right shell is checked and the
 461         # warning is issued only once.
 462         if test -n "$BASH_VERSION" && eval '
 463              test ${BASH_VERSINFO[0]} -gt 4 || {
 464                test ${BASH_VERSINFO[0]} -eq 4 &&
 465                test ${BASH_VERSINFO[1]} -ge 1
 466              }
 467            '
 468         then
 469                 : Executed by a Bash version supporting BASH_XTRACEFD.  Good.
 470         else
 471                 echo >&2 "warning: ignoring -x; '$0' is untraceable without BASH_XTRACEFD"
 472                 trace=
 473         fi
 474 fi
 475 if test -n "$trace" && test -z "$verbose_log"
 476 then
 477         verbose=t
 478 fi
 479
 480 # Since bash 5.0, checkwinsize is enabled by default which does
 481 # update the COLUMNS variable every time a non-builtin command
 482 # completes, even for non-interactive shells.
 483 # Disable that since we are aiming for repeatability.
 484 test -n "$BASH_VERSION" && shopt -u checkwinsize 2>/dev/null
 485
 486 # For repeatability, reset the environment to known value.
 487 # TERM is sanitized below, after saving color control sequences.
 488 LANG=C
 489 LC_ALL=C
 490 PAGER=cat
 491 TZ=UTC
 492 COLUMNS=80
 493 export LANG LC_ALL PAGER TZ COLUMNS
 494 EDITOR=:
 495
 496 # A call to "unset" with no arguments causes at least Solaris 10
 497 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
 498 # deriving from the command substitution clustered with the other
 499 # ones.
 500 unset VISUAL EMAIL LANGUAGE $("$PERL_PATH" -e '
 501         my @env = keys %ENV;
 502         my $ok = join("|", qw(
 503                 TRACE
 504                 DEBUG
 505                 TEST
 506                 .*_TEST
 507                 PROVE
 508                 VALGRIND
 509                 UNZIP
 510                 PERF_
 511                 CURL_VERBOSE
 512                 TRACE_CURL
 513         ));
 514         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 515         print join("\n", @vars);
 516 ')
 517 unset XDG_CACHE_HOME
 518 unset XDG_CONFIG_HOME
 519 unset GITPERLLIB
 520 unset GIT_TRACE2_PARENT_NAME
 521 unset GIT_TRACE2_PARENT_SID
 522 TEST_AUTHOR_LOCALNAME=author
 523 TEST_AUTHOR_DOMAIN=example.com
 524 GIT_AUTHOR_EMAIL=${TEST_AUTHOR_LOCALNAME}@${TEST_AUTHOR_DOMAIN}
 525 GIT_AUTHOR_NAME='A U Thor'
 526 GIT_AUTHOR_DATE='1112354055 +0200'
 527 TEST_COMMITTER_LOCALNAME=committer
 528 TEST_COMMITTER_DOMAIN=example.com
 529 GIT_COMMITTER_EMAIL=${TEST_COMMITTER_LOCALNAME}@${TEST_COMMITTER_DOMAIN}
 530 GIT_COMMITTER_NAME='C O Mitter'
 531 GIT_COMMITTER_DATE='1112354055 +0200'
 532 GIT_MERGE_VERBOSITY=5
 533 GIT_MERGE_AUTOEDIT=no
 534 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 535 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 536 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 537 export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 538 export EDITOR
 539
 540 GIT_DEFAULT_HASH="${GIT_TEST_DEFAULT_HASH:-sha1}"
 541 export GIT_DEFAULT_HASH
 542 GIT_TEST_MERGE_ALGORITHM="${GIT_TEST_MERGE_ALGORITHM:-ort}"
 543 export GIT_TEST_MERGE_ALGORITHM
 544
 545 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 546 GIT_TRACE_BARE=1
 547 export GIT_TRACE_BARE
 548
 549 # Some tests scan the GIT_TRACE2_EVENT feed for events, but the
 550 # default depth is 2, which frequently causes issues when the
 551 # events are wrapped in new regions. Set it to a sufficiently
 552 # large depth to avoid custom changes in the test suite.
 553 GIT_TRACE2_EVENT_NESTING=100
 554 export GIT_TRACE2_EVENT_NESTING
 555
 556 # Use specific version of the index file format
 557 if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
 558 then
 559         GIT_INDEX_VERSION="$GIT_TEST_INDEX_VERSION"
 560         export GIT_INDEX_VERSION
 561 fi
 562
 563 if test -n "$GIT_TEST_PERL_FATAL_WARNINGS"
 564 then
 565         GIT_PERL_FATAL_WARNINGS=1
 566         export GIT_PERL_FATAL_WARNINGS
 567 fi
 568
 569 case $GIT_TEST_FSYNC in
 570 '')
 571         GIT_TEST_FSYNC=0
 572         export GIT_TEST_FSYNC
 573         ;;
 574 esac
 575
 576 # Add libc MALLOC and MALLOC_PERTURB test only if we are not executing
 577 # the test with valgrind and have not compiled with conflict SANITIZE
 578 # options.
 579 if test -n "$valgrind" ||
 580    test -n "$SANITIZE_ADDRESS" ||
 581    test -n "$SANITIZE_LEAK" ||
 582    test -n "$TEST_NO_MALLOC_CHECK"
 583 then
 584         setup_malloc_check () {
 585                 : nothing
 586         }
 587         teardown_malloc_check () {
 588                 : nothing
 589         }
 590 else
 591         _USE_GLIBC_TUNABLES=
 592         if _GLIBC_VERSION=$(getconf GNU_LIBC_VERSION 2>/dev/null) &&
 593            _GLIBC_VERSION=${_GLIBC_VERSION#"glibc "} &&
 594            expr 2.34 \<= "$_GLIBC_VERSION" >/dev/null
 595         then
 596                 _USE_GLIBC_TUNABLES=YesPlease
 597         fi
 598         setup_malloc_check () {
 599                 local g
 600                 local t
 601                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 602                 export MALLOC_CHECK_ MALLOC_PERTURB_
 603                 if test -n "$_USE_GLIBC_TUNABLES"
 604                 then
 605                         g=
 606                         LD_PRELOAD="libc_malloc_debug.so.0"
 607                         for t in \
 608                                 glibc.malloc.check=1 \
 609                                 glibc.malloc.perturb=165
 610                         do
 611                                 g="${g#:}:$t"
 612                         done
 613                         GLIBC_TUNABLES=$g
 614                         export LD_PRELOAD GLIBC_TUNABLES
 615                 fi
 616         }
 617         teardown_malloc_check () {
 618                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 619                 unset LD_PRELOAD GLIBC_TUNABLES
 620         }
 621 fi
 622
 623 # Protect ourselves from common misconfiguration to export
 624 # CDPATH into the environment
 625 unset CDPATH
 626
 627 unset GREP_OPTIONS
 628 unset UNZIP
 629
 630 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 631 1|2|true)
 632         GIT_TRACE=4
 633         ;;
 634 esac
 635
 636 # Line feed
 637 LF='
 638 '
 639
 640 # Single quote
 641 SQ=\'
 642
 643 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 644 # when case-folding filenames
 645 u200c=$(printf '\342\200\214')
 646
 647 export _x05 _x35 LF u200c EMPTY_TREE EMPTY_BLOB ZERO_OID OID_REGEX
 648
 649 # Each test should start with something like this, after copyright notices:
 650 #
 651 # test_description='Description of this test...
 652 # This test checks if command xyzzy does the right thing...
 653 # '
 654 # . ./test-lib.sh
 655 test "x$TERM" != "xdumb" && (
 656                 test -t 1 &&
 657                 tput bold >/dev/null 2>&1 &&
 658                 tput setaf 1 >/dev/null 2>&1 &&
 659                 tput sgr0 >/dev/null 2>&1
 660         ) &&
 661         color=t
 662
 663 if test -n "$color"
 664 then
 665         # Save the color control sequences now rather than run tput
 666         # each time say_color() is called.  This is done for two
 667         # reasons:
 668         #   * TERM will be changed to dumb
 669         #   * HOME will be changed to a temporary directory and tput
 670         #     might need to read ~/.terminfo from the original HOME
 671         #     directory to get the control sequences
 672         # Note:  This approach assumes the control sequences don't end
 673         # in a newline for any terminal of interest (command
 674         # substitutions strip trailing newlines).  Given that most
 675         # (all?) terminals in common use are related to ECMA-48, this
 676         # shouldn't be a problem.
 677         say_color_error=$(tput bold; tput setaf 1) # bold red
 678         say_color_skip=$(tput setaf 4) # blue
 679         say_color_warn=$(tput setaf 3) # brown/yellow
 680         say_color_pass=$(tput setaf 2) # green
 681         say_color_info=$(tput setaf 6) # cyan
 682         say_color_reset=$(tput sgr0)
 683         say_color_="" # no formatting for normal text
 684         say_color () {
 685                 test -z "$1" && test -n "$quiet" && return
 686                 eval "say_color_color=\$say_color_$1"
 687                 shift
 688                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 689         }
 690 else
 691         say_color() {
 692                 test -z "$1" && test -n "$quiet" && return
 693                 shift
 694                 printf "%s\n" "$*"
 695         }
 696 fi
 697
 698 USER_TERM="$TERM"
 699 TERM=dumb
 700 export TERM USER_TERM
 701
 702 # What is written by tests to stdout and stderr is sent to different places
 703 # depending on the test mode (e.g. /dev/null in non-verbose mode, piped to tee
 704 # with --tee option, etc.). We save the original stdin to FD #6 and stdout and
 705 # stderr to #5 and #7, so that the test framework can use them (e.g. for
 706 # printing errors within the test framework) independently of the test mode.
 707 exec 5>&1
 708 exec 6<&0
 709 exec 7>&2
 710
 711 _error_exit () {
 712         finalize_test_output
 713         GIT_EXIT_OK=t
 714         exit 1
 715 }
 716
 717 error () {
 718         say_color error "error: $*"
 719         _error_exit
 720 }
 721
 722 BUG () {
 723         error >&7 "bug in the test script: $*"
 724 }
 725
 726 BAIL_OUT () {
 727         test $# -ne 1 && BUG "1 param"
 728
 729         # Do not change "Bail out! " string. It's part of TAP syntax:
 730         # https://testanything.org/tap-specification.html
 731         local bail_out="Bail out! "
 732         local message="$1"
 733
 734         say_color >&5 error $bail_out "$message"
 735         _error_exit
 736 }
 737
 738 say () {
 739         say_color info "$*"
 740 }
 741
 742 if test -n "$HARNESS_ACTIVE"
 743 then
 744         if test "$verbose" = t || test -n "$verbose_only"
 745         then
 746                 BAIL_OUT 'verbose mode forbidden under TAP harness; try --verbose-log'
 747         fi
 748 fi
 749
 750 test "${test_description}" != "" ||
 751 error "Test script did not set test_description."
 752
 753 if test "$help" = "t"
 754 then
 755         printf '%s\n' "$test_description"
 756         exit 0
 757 fi
 758
 759 if test "$verbose_log" = "t"
 760 then
 761         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 762 elif test "$verbose" = "t"
 763 then
 764         exec 4>&2 3>&1
 765 else
 766         exec 4>/dev/null 3>/dev/null
 767 fi
 768
 769 # Send any "-x" output directly to stderr to avoid polluting tests
 770 # which capture stderr. We can do this unconditionally since it
 771 # has no effect if tracing isn't turned on.
 772 #
 773 # Note that this sets up the trace fd as soon as we assign the variable, so it
 774 # must come after the creation of descriptor 4 above. Likewise, we must never
 775 # unset this, as it has the side effect of closing descriptor 4, which we
 776 # use to show verbose tests to the user.
 777 #
 778 # Note also that we don't need or want to export it. The tracing is local to
 779 # this shell, and we would not want to influence any shells we exec.
 780 BASH_XTRACEFD=4
 781
 782 test_failure=0
 783 test_count=0
 784 test_fixed=0
 785 test_broken=0
 786 test_success=0
 787
 788 test_missing_prereq=
 789
 790 test_external_has_tap=0
 791
 792 die () {
 793         code=$?
 794         # This is responsible for running the atexit commands even when a
 795         # test script run with '--immediate' fails, or when the user hits
 796         # ctrl-C, i.e. when 'test_done' is not invoked at all.
 797         test_atexit_handler || code=$?
 798         if test -n "$GIT_EXIT_OK"
 799         then
 800                 exit $code
 801         else
 802                 echo >&5 "FATAL: Unexpected exit with code $code"
 803                 exit 1
 804         fi
 805 }
 806
 807 GIT_EXIT_OK=
 808 trap 'die' EXIT
 809 # Disable '-x' tracing, because with some shells, notably dash, it
 810 # prevents running the cleanup commands when a test script run with
 811 # '--verbose-log -x' is interrupted.
 812 trap '{ code=$?; set +x; } 2>/dev/null; exit $code' INT TERM HUP
 813
 814 # The user-facing functions are loaded from a separate file so that
 815 # test_perf subshells can have them too
 816 . "$TEST_DIRECTORY/test-lib-functions.sh"
 817
 818 # You are not expected to call test_ok_ and test_failure_ directly, use
 819 # the test_expect_* functions instead.
 820
 821 test_ok_ () {
 822         test_success=$(($test_success + 1))
 823         say_color "" "ok $test_count - $@"
 824         finalize_test_case_output ok "$@"
 825 }
 826
 827 _invert_exit_code_failure_end_blurb () {
 828         say_color warn "# faked up failures as TODO & now exiting with 0 due to --invert-exit-code"
 829 }
 830
 831 test_failure_ () {
 832         failure_label=$1
 833         test_failure=$(($test_failure + 1))
 834         local pfx=""
 835         if test -n "$invert_exit_code" # && test -n "$HARNESS_ACTIVE"
 836         then
 837                 pfx="# TODO induced breakage (--invert-exit-code):"
 838         fi
 839         say_color error "not ok $test_count - ${pfx:+$pfx }$1"
 840         shift
 841         printf '%s\n' "$*" | sed -e 's/^/#      /'
 842         if test -n "$immediate"
 843         then
 844                 say_color error "1..$test_count"
 845                 if test -n "$invert_exit_code"
 846                 then
 847                         finalize_test_output
 848                         _invert_exit_code_failure_end_blurb
 849                         GIT_EXIT_OK=t
 850                         exit 0
 851                 fi
 852                 _error_exit
 853         fi
 854         finalize_test_case_output failure "$failure_label" "$@"
 855 }
 856
 857 test_known_broken_ok_ () {
 858         test_fixed=$(($test_fixed+1))
 859         say_color error "ok $test_count - $1 # TODO known breakage vanished"
 860         finalize_test_case_output fixed "$1"
 861 }
 862
 863 test_known_broken_failure_ () {
 864         test_broken=$(($test_broken+1))
 865         say_color warn "not ok $test_count - $1 # TODO known breakage"
 866         finalize_test_case_output broken "$1"
 867 }
 868
 869 test_debug () {
 870         test "$debug" = "" || eval "$1"
 871 }
 872
 873 match_pattern_list () {
 874         arg="$1"
 875         shift
 876         test -z "$*" && return 1
 877         # We need to use "$*" to get field-splitting, but we want to
 878         # disable globbing, since we are matching against an arbitrary
 879         # $arg, not what's in the filesystem. Using "set -f" accomplishes
 880         # that, but we must do it in a subshell to avoid impacting the
 881         # rest of the script. The exit value of the subshell becomes
 882         # the function's return value.
 883         (
 884                 set -f
 885                 for pattern_ in $*
 886                 do
 887                         case "$arg" in
 888                         $pattern_)
 889                                 exit 0
 890                                 ;;
 891                         esac
 892                 done
 893                 exit 1
 894         )
 895 }
 896
 897 match_test_selector_list () {
 898         operation="$1"
 899         shift
 900         title="$1"
 901         shift
 902         arg="$1"
 903         shift
 904         test -z "$1" && return 0
 905
 906         # Commas are accepted as separators.
 907         OLDIFS=$IFS
 908         IFS=','
 909         set -- $1
 910         IFS=$OLDIFS
 911
 912         # If the first selector is negative we include by default.
 913         include=
 914         case "$1" in
 915                 !*) include=t ;;
 916         esac
 917
 918         for selector
 919         do
 920                 orig_selector=$selector
 921
 922                 positive=t
 923                 case "$selector" in
 924                         !*)
 925                                 positive=
 926                                 selector=${selector##?}
 927                                 ;;
 928                 esac
 929
 930                 test -z "$selector" && continue
 931
 932                 case "$selector" in
 933                         *-*)
 934                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 935                                 then
 936                                         echo "error: $operation: invalid non-numeric in range" \
 937                                                 "start: '$orig_selector'" >&2
 938                                         exit 1
 939                                 fi
 940                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 941                                 then
 942                                         echo "error: $operation: invalid non-numeric in range" \
 943                                                 "end: '$orig_selector'" >&2
 944                                         exit 1
 945                                 fi
 946                                 ;;
 947                         *)
 948                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 949                                 then
 950                                         case "$title" in *${selector}*)
 951                                                 include=$positive
 952                                                 ;;
 953                                         esac
 954                                         continue
 955                                 fi
 956                 esac
 957
 958                 # Short cut for "obvious" cases
 959                 test -z "$include" && test -z "$positive" && continue
 960                 test -n "$include" && test -n "$positive" && continue
 961
 962                 case "$selector" in
 963                         -*)
 964                                 if test $arg -le ${selector#-}
 965                                 then
 966                                         include=$positive
 967                                 fi
 968                                 ;;
 969                         *-)
 970                                 if test $arg -ge ${selector%-}
 971                                 then
 972                                         include=$positive
 973                                 fi
 974                                 ;;
 975                         *-*)
 976                                 if test ${selector%%-*} -le $arg \
 977                                         && test $arg -le ${selector#*-}
 978                                 then
 979                                         include=$positive
 980                                 fi
 981                                 ;;
 982                         *)
 983                                 if test $arg -eq $selector
 984                                 then
 985                                         include=$positive
 986                                 fi
 987                                 ;;
 988                 esac
 989         done
 990
 991         test -n "$include"
 992 }
 993
 994 maybe_teardown_verbose () {
 995         test -z "$verbose_only" && return
 996         exec 4>/dev/null 3>/dev/null
 997         verbose=
 998 }
 999
1000 last_verbose=t
1001 maybe_setup_verbose () {
1002         test -z "$verbose_only" && return
1003         if match_pattern_list $test_count "$verbose_only"
1004         then
1005                 exec 4>&2 3>&1
1006                 # Emit a delimiting blank line when going from
1007                 # non-verbose to verbose.  Within verbose mode the
1008                 # delimiter is printed by test_expect_*.  The choice
1009                 # of the initial $last_verbose is such that before
1010                 # test 1, we do not print it.
1011                 test -z "$last_verbose" && echo >&3 ""
1012                 verbose=t
1013         else
1014                 exec 4>/dev/null 3>/dev/null
1015                 verbose=
1016         fi
1017         last_verbose=$verbose
1018 }
1019
1020 maybe_teardown_valgrind () {
1021         test -z "$GIT_VALGRIND" && return
1022         GIT_VALGRIND_ENABLED=
1023 }
1024
1025 maybe_setup_valgrind () {
1026         test -z "$GIT_VALGRIND" && return
1027         if test -z "$valgrind_only"
1028         then
1029                 GIT_VALGRIND_ENABLED=t
1030                 return
1031         fi
1032         GIT_VALGRIND_ENABLED=
1033         if match_pattern_list $test_count "$valgrind_only"
1034         then
1035                 GIT_VALGRIND_ENABLED=t
1036         fi
1037 }
1038
1039 trace_level_=0
1040 want_trace () {
1041         test "$trace" = t && {
1042                 test "$verbose" = t || test "$verbose_log" = t
1043         }
1044 }
1045
1046 # This is a separate function because some tests use
1047 # "return" to end a test_expect_success block early
1048 # (and we want to make sure we run any cleanup like
1049 # "set +x").
1050 test_eval_inner_ () {
1051         # Do not add anything extra (including LF) after '$*'
1052         eval "
1053                 want_trace && trace_level_=$(($trace_level_+1)) && set -x
1054                 $*"
1055 }
1056
1057 test_eval_ () {
1058         # If "-x" tracing is in effect, then we want to avoid polluting stderr
1059         # with non-test commands. But once in "set -x" mode, we cannot prevent
1060         # the shell from printing the "set +x" to turn it off (nor the saving
1061         # of $? before that). But we can make sure that the output goes to
1062         # /dev/null.
1063         #
1064         # There are a few subtleties here:
1065         #
1066         #   - we have to redirect descriptor 4 in addition to 2, to cover
1067         #     BASH_XTRACEFD
1068         #
1069         #   - the actual eval has to come before the redirection block (since
1070         #     it needs to see descriptor 4 to set up its stderr)
1071         #
1072         #   - likewise, any error message we print must be outside the block to
1073         #     access descriptor 4
1074         #
1075         #   - checking $? has to come immediately after the eval, but it must
1076         #     be _inside_ the block to avoid polluting the "set -x" output
1077         #
1078
1079         test_eval_inner_ "$@" </dev/null >&3 2>&4
1080         {
1081                 test_eval_ret_=$?
1082                 if want_trace
1083                 then
1084                         test 1 = $trace_level_ && set +x
1085                         trace_level_=$(($trace_level_-1))
1086                 fi
1087         } 2>/dev/null 4>&2
1088
1089         if test "$test_eval_ret_" != 0 && want_trace
1090         then
1091                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
1092         fi
1093         return $test_eval_ret_
1094 }
1095
1096 test_run_ () {
1097         test_cleanup=:
1098         expecting_failure=$2
1099
1100         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
1101                 # turn off tracing for this test-eval, as it simply creates
1102                 # confusing noise in the "-x" output
1103                 trace_tmp=$trace
1104                 trace=
1105                 # 117 is magic because it is unlikely to match the exit
1106                 # code of other programs
1107                 if test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
1108                 then
1109                         BUG "broken &&-chain or run-away HERE-DOC: $1"
1110                 fi
1111                 trace=$trace_tmp
1112         fi
1113
1114         setup_malloc_check
1115         test_eval_ "$1"
1116         eval_ret=$?
1117         teardown_malloc_check
1118
1119         if test -z "$immediate" || test $eval_ret = 0 ||
1120            test -n "$expecting_failure" && test "$test_cleanup" != ":"
1121         then
1122                 setup_malloc_check
1123                 test_eval_ "$test_cleanup"
1124                 teardown_malloc_check
1125         fi
1126         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
1127         then
1128                 echo ""
1129         fi
1130         return "$eval_ret"
1131 }
1132
1133 test_start_ () {
1134         test_count=$(($test_count+1))
1135         maybe_setup_verbose
1136         maybe_setup_valgrind
1137         start_test_case_output "$@"
1138 }
1139
1140 test_finish_ () {
1141         echo >&3 ""
1142         maybe_teardown_valgrind
1143         maybe_teardown_verbose
1144         if test -n "$GIT_TEST_TEE_OFFSET"
1145         then
1146                 GIT_TEST_TEE_OFFSET=$(test-tool path-utils file-size \
1147                         "$GIT_TEST_TEE_OUTPUT_FILE")
1148         fi
1149 }
1150
1151 test_skip () {
1152         to_skip=
1153         skipped_reason=
1154         if match_pattern_list $this_test.$test_count "$GIT_SKIP_TESTS"
1155         then
1156                 to_skip=t
1157                 skipped_reason="GIT_SKIP_TESTS"
1158         fi
1159         if test -z "$to_skip" && test -n "$run_list" &&
1160            ! match_test_selector_list '--run' "$1" $test_count "$run_list"
1161         then
1162                 to_skip=t
1163                 skipped_reason="--run"
1164         fi
1165         if test -z "$to_skip" && test -n "$test_prereq" &&
1166            ! test_have_prereq "$test_prereq"
1167         then
1168                 to_skip=t
1169
1170                 of_prereq=
1171                 if test "$missing_prereq" != "$test_prereq"
1172                 then
1173                         of_prereq=" of $test_prereq"
1174                 fi
1175                 skipped_reason="missing $missing_prereq${of_prereq}"
1176
1177                 # Keep a list of all the missing prereq for result aggregation
1178                 if test -z "$missing_prereq"
1179                 then
1180                         test_missing_prereq=$missing_prereq
1181                 else
1182                         test_missing_prereq="$test_missing_prereq,$missing_prereq"
1183                 fi
1184         fi
1185
1186         case "$to_skip" in
1187         t)
1188
1189                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
1190                 : true
1191                 finalize_test_case_output skip "$@"
1192                 ;;
1193         *)
1194                 false
1195                 ;;
1196         esac
1197 }
1198
1199 # stub; perf-lib overrides it
1200 test_at_end_hook_ () {
1201         :
1202 }
1203
1204 test_atexit_cleanup=:
1205 test_atexit_handler () {
1206         # In a succeeding test script 'test_atexit_handler' is invoked
1207         # twice: first from 'test_done', then from 'die' in the trap on
1208         # EXIT.
1209         # This condition and resetting 'test_atexit_cleanup' below makes
1210         # sure that the registered cleanup commands are run only once.
1211         test : != "$test_atexit_cleanup" || return 0
1212
1213         setup_malloc_check
1214         test_eval_ "$test_atexit_cleanup"
1215         test_atexit_cleanup=:
1216         teardown_malloc_check
1217 }
1218
1219 sanitize_leak_log_message_ () {
1220         local new="$1" &&
1221         local old="$2" &&
1222         local file="$3" &&
1223
1224         printf "With SANITIZE=leak at exit we have %d leak logs, but started with %d
1225
1226 This means that we have a blindspot where git is leaking but we're
1227 losing the exit code somewhere, or not propagating it appropriately
1228 upwards!
1229
1230 See the logs at \"%s.*\";
1231 those logs are reproduced below." \
1232                "$new" "$old" "$file"
1233 }
1234
1235 check_test_results_san_file_ () {
1236         if test -z "$TEST_RESULTS_SAN_FILE"
1237         then
1238                 return
1239         fi &&
1240         local old="$TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP" &&
1241         local new="$(nr_san_dir_leaks_)" &&
1242
1243         if test $new -le $old
1244         then
1245                 return
1246         fi &&
1247         local out="$(sanitize_leak_log_message_ "$new" "$old" "$TEST_RESULTS_SAN_FILE")" &&
1248         say_color error "$out" &&
1249         if test "$old" != 0
1250         then
1251                 echo &&
1252                 say_color error "The logs include output from past runs to avoid" &&
1253                 say_color error "that remove 'test-results' between runs."
1254         fi &&
1255         say_color error "$(cat "$TEST_RESULTS_SAN_FILE".*)" &&
1256
1257         if test -n "$passes_sanitize_leak" && test "$test_failure" = 0
1258         then
1259                 say "As TEST_PASSES_SANITIZE_LEAK=true and our logs show we're leaking, exit non-zero!" &&
1260                 invert_exit_code=t
1261         elif test -n "$passes_sanitize_leak"
1262         then
1263                 say "As TEST_PASSES_SANITIZE_LEAK=true and our logs show we're leaking, and we're failing for other reasons too..." &&
1264                 invert_exit_code=
1265         elif test -n "$sanitize_leak_check" && test "$test_failure" = 0
1266         then
1267                 say "As TEST_PASSES_SANITIZE_LEAK=true isn't set the above leak is 'ok' with GIT_TEST_PASSING_SANITIZE_LEAK=check" &&
1268                 invert_exit_code=
1269         elif test -n "$sanitize_leak_check"
1270         then
1271                 say "As TEST_PASSES_SANITIZE_LEAK=true isn't set the above leak is 'ok' with GIT_TEST_PASSING_SANITIZE_LEAK=check" &&
1272                 invert_exit_code=t
1273         else
1274                 say "With GIT_TEST_SANITIZE_LEAK_LOG=true our logs revealed a memory leak, exit non-zero!" &&
1275                 invert_exit_code=t
1276         fi
1277 }
1278
1279 test_done () {
1280         # Run the atexit commands _before_ the trash directory is
1281         # removed, so the commands can access pidfiles and socket files.
1282         test_atexit_handler
1283
1284         finalize_test_output
1285
1286         if test -z "$HARNESS_ACTIVE"
1287         then
1288                 mkdir -p "$TEST_RESULTS_DIR"
1289
1290                 cat >"$TEST_RESULTS_BASE.counts" <<-EOF
1291                 total $test_count
1292                 success $test_success
1293                 fixed $test_fixed
1294                 broken $test_broken
1295                 failed $test_failure
1296                 missing_prereq $test_missing_prereq
1297
1298                 EOF
1299         fi
1300
1301         if test "$test_fixed" != 0
1302         then
1303                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
1304         fi
1305         if test "$test_broken" != 0
1306         then
1307                 say_color warn "# still have $test_broken known breakage(s)"
1308         fi
1309         if test "$test_broken" != 0 || test "$test_fixed" != 0
1310         then
1311                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
1312                 msg="remaining $test_remaining test(s)"
1313         else
1314                 test_remaining=$test_count
1315                 msg="$test_count test(s)"
1316         fi
1317         case "$test_failure" in
1318         0)
1319                 if test $test_remaining -gt 0
1320                 then
1321                         say_color pass "# passed all $msg"
1322                 fi
1323
1324                 # Maybe print SKIP message
1325                 test -z "$skip_all" || skip_all="# SKIP $skip_all"
1326                 case "$test_count" in
1327                 0)
1328                         say "1..$test_count${skip_all:+ $skip_all}"
1329                         ;;
1330                 *)
1331                         test -z "$skip_all" ||
1332                         say_color warn "$skip_all"
1333                         say "1..$test_count"
1334                         ;;
1335                 esac
1336
1337                 if test -n "$stress" && test -n "$invert_exit_code"
1338                 then
1339                         # We're about to move our "$TRASH_DIRECTORY"
1340                         # to "$TRASH_DIRECTORY.stress-failed" if
1341                         # --stress is combined with
1342                         # --invert-exit-code.
1343                         say "with --stress and --invert-exit-code we're not removing '$TRASH_DIRECTORY'"
1344                 elif test -z "$debug" && test -n "$remove_trash"
1345                 then
1346                         test -d "$TRASH_DIRECTORY" ||
1347                         error "Tests passed but trash directory already removed before test cleanup; aborting"
1348
1349                         cd "$TRASH_DIRECTORY/.." &&
1350                         rm -fr "$TRASH_DIRECTORY" || {
1351                                 # try again in a bit
1352                                 sleep 5;
1353                                 rm -fr "$TRASH_DIRECTORY"
1354                         } ||
1355                         error "Tests passed but test cleanup failed; aborting"
1356                 fi
1357
1358                 check_test_results_san_file_ "$test_failure"
1359
1360                 if test -z "$skip_all" && test -n "$invert_exit_code"
1361                 then
1362                         say_color warn "# faking up non-zero exit with --invert-exit-code"
1363                         GIT_EXIT_OK=t
1364                         exit 1
1365                 fi
1366
1367                 test_at_end_hook_
1368
1369                 GIT_EXIT_OK=t
1370                 exit 0 ;;
1371
1372         *)
1373                 say_color error "# failed $test_failure among $msg"
1374                 say "1..$test_count"
1375
1376                 check_test_results_san_file_ "$test_failure"
1377
1378                 if test -n "$invert_exit_code"
1379                 then
1380                         _invert_exit_code_failure_end_blurb
1381                         GIT_EXIT_OK=t
1382                         exit 0
1383                 fi
1384
1385                 GIT_EXIT_OK=t
1386                 exit 1 ;;
1387
1388         esac
1389 }
1390
1391 if test -n "$valgrind"
1392 then
1393         make_symlink () {
1394                 test -h "$2" &&
1395                 test "$1" = "$(readlink "$2")" || {
1396                         # be super paranoid
1397                         if mkdir "$2".lock
1398                         then
1399                                 rm -f "$2" &&
1400                                 ln -s "$1" "$2" &&
1401                                 rm -r "$2".lock
1402                         else
1403                                 while test -d "$2".lock
1404                                 do
1405                                         say "Waiting for lock on $2."
1406                                         sleep 1
1407                                 done
1408                         fi
1409                 }
1410         }
1411
1412         make_valgrind_symlink () {
1413                 # handle only executables, unless they are shell libraries that
1414                 # need to be in the exec-path.
1415                 test -x "$1" ||
1416                 test "# " = "$(test_copy_bytes 2 <"$1")" ||
1417                 return;
1418
1419                 base=$(basename "$1")
1420                 case "$base" in
1421                 test-*)
1422                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
1423                         ;;
1424                 *)
1425                         symlink_target="$GIT_BUILD_DIR/$base"
1426                         ;;
1427                 esac
1428                 # do not override scripts
1429                 if test -x "$symlink_target" &&
1430                     test ! -d "$symlink_target" &&
1431                     test "#!" != "$(test_copy_bytes 2 <"$symlink_target")"
1432                 then
1433                         symlink_target=../valgrind.sh
1434                 fi
1435                 case "$base" in
1436                 *.sh|*.perl)
1437                         symlink_target=../unprocessed-script
1438                 esac
1439                 # create the link, or replace it if it is out of date
1440                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
1441         }
1442
1443         # override all git executables in TEST_DIRECTORY/..
1444         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
1445         mkdir -p "$GIT_VALGRIND"/bin
1446         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
1447         do
1448                 make_valgrind_symlink $file
1449         done
1450         # special-case the mergetools loadables
1451         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
1452         OLDIFS=$IFS
1453         IFS=:
1454         for path in $PATH
1455         do
1456                 ls "$path"/git-* 2> /dev/null |
1457                 while read file
1458                 do
1459                         make_valgrind_symlink "$file"
1460                 done
1461         done
1462         IFS=$OLDIFS
1463         PATH=$GIT_VALGRIND/bin:$PATH
1464         GIT_EXEC_PATH=$GIT_VALGRIND/bin
1465         export GIT_VALGRIND
1466         GIT_VALGRIND_MODE="$valgrind"
1467         export GIT_VALGRIND_MODE
1468         GIT_VALGRIND_ENABLED=t
1469         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
1470         export GIT_VALGRIND_ENABLED
1471 elif test -n "$GIT_TEST_INSTALLED"
1472 then
1473         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
1474         error "Cannot run git from $GIT_TEST_INSTALLED."
1475         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$PATH
1476         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
1477 else # normal case, use ../bin-wrappers only unless $with_dashes:
1478         if test -n "$no_bin_wrappers"
1479         then
1480                 with_dashes=t
1481         else
1482                 git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
1483                 if ! test -x "$git_bin_dir/git"
1484                 then
1485                         if test -z "$with_dashes"
1486                         then
1487                                 say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
1488                         fi
1489                         with_dashes=t
1490                 fi
1491                 PATH="$git_bin_dir:$PATH"
1492         fi
1493         GIT_EXEC_PATH=$GIT_BUILD_DIR
1494         if test -n "$with_dashes"
1495         then
1496                 PATH="$GIT_BUILD_DIR:$GIT_BUILD_DIR/t/helper:$PATH"
1497         fi
1498 fi
1499 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
1500 GIT_CONFIG_NOSYSTEM=1
1501 GIT_ATTR_NOSYSTEM=1
1502 GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/.."
1503 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM GIT_CEILING_DIRECTORIES
1504
1505 if test -z "$GIT_TEST_CMP"
1506 then
1507         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
1508         then
1509                 GIT_TEST_CMP="$DIFF -c"
1510         else
1511                 GIT_TEST_CMP="$DIFF -u"
1512         fi
1513 fi
1514
1515 GITPERLLIB="$GIT_BUILD_DIR"/perl/build/lib
1516 export GITPERLLIB
1517 test -d "$GIT_BUILD_DIR"/templates/blt || {
1518         BAIL_OUT "You haven't built things yet, have you?"
1519 }
1520
1521 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
1522 then
1523         BAIL_OUT 'You need to build test-tool; Run "make t/helper/test-tool" in the source (toplevel) directory'
1524 fi
1525
1526 # Are we running this test at all?
1527 remove_trash=
1528 this_test=${0##*/}
1529 this_test=${this_test%%-*}
1530 if match_pattern_list "$this_test" "$GIT_SKIP_TESTS"
1531 then
1532         say_color info >&3 "skipping test $this_test altogether"
1533         skip_all="skip all tests in $this_test"
1534         test_done
1535 fi
1536
1537 BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK () {
1538         BAIL_OUT "$1 has no effect except when compiled with SANITIZE=leak"
1539 }
1540
1541 if test -n "$SANITIZE_LEAK"
1542 then
1543         # Normalize with test_bool_env
1544         passes_sanitize_leak=
1545
1546         # We need to see TEST_PASSES_SANITIZE_LEAK in "git
1547         # env--helper" (via test_bool_env)
1548         export TEST_PASSES_SANITIZE_LEAK
1549         if test_bool_env TEST_PASSES_SANITIZE_LEAK false
1550         then
1551                 passes_sanitize_leak=t
1552         fi
1553
1554         if test "$GIT_TEST_PASSING_SANITIZE_LEAK" = "check"
1555         then
1556                 sanitize_leak_check=t
1557                 if test -n "$invert_exit_code"
1558                 then
1559                         BAIL_OUT "cannot use --invert-exit-code under GIT_TEST_PASSING_SANITIZE_LEAK=check"
1560                 fi
1561
1562                 if test -z "$passes_sanitize_leak"
1563                 then
1564                         say "in GIT_TEST_PASSING_SANITIZE_LEAK=check mode, setting --invert-exit-code for TEST_PASSES_SANITIZE_LEAK != true"
1565                         invert_exit_code=t
1566                 fi
1567         elif test -z "$passes_sanitize_leak" &&
1568              test_bool_env GIT_TEST_PASSING_SANITIZE_LEAK false
1569         then
1570                 skip_all="skipping $this_test under GIT_TEST_PASSING_SANITIZE_LEAK=true"
1571                 test_done
1572         fi
1573
1574         if test_bool_env GIT_TEST_SANITIZE_LEAK_LOG false
1575         then
1576                 if ! mkdir -p "$TEST_RESULTS_SAN_DIR"
1577                 then
1578                         BAIL_OUT "cannot create $TEST_RESULTS_SAN_DIR"
1579                 fi &&
1580                 TEST_RESULTS_SAN_FILE="$TEST_RESULTS_SAN_DIR/$TEST_RESULTS_SAN_FILE_PFX"
1581
1582                 # In case "test-results" is left over from a previous
1583                 # run: Only report if new leaks show up.
1584                 TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP=$(nr_san_dir_leaks_)
1585
1586                 # Don't litter *.leak dirs if there was nothing to report
1587                 test_atexit "rmdir \"$TEST_RESULTS_SAN_DIR\" 2>/dev/null || :"
1588
1589                 prepend_var LSAN_OPTIONS : dedup_token_length=9999
1590                 prepend_var LSAN_OPTIONS : log_exe_name=1
1591                 prepend_var LSAN_OPTIONS : log_path=\"$TEST_RESULTS_SAN_FILE\"
1592                 export LSAN_OPTIONS
1593         fi
1594 elif test "$GIT_TEST_PASSING_SANITIZE_LEAK" = "check" ||
1595      test_bool_env GIT_TEST_PASSING_SANITIZE_LEAK false
1596 then
1597         BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK "GIT_TEST_PASSING_SANITIZE_LEAK=true"
1598 elif test_bool_env GIT_TEST_SANITIZE_LEAK_LOG false
1599 then
1600         BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK "GIT_TEST_SANITIZE_LEAK_LOG=true"
1601 fi
1602
1603 if test "${GIT_TEST_CHAIN_LINT:-1}" != 0
1604 then
1605         "$PERL_PATH" "$TEST_DIRECTORY/chainlint.pl" "$0" ||
1606                 BUG "lint error (see '?!...!? annotations above)"
1607 fi
1608
1609 # Last-minute variable setup
1610 USER_HOME="$HOME"
1611 HOME="$TRASH_DIRECTORY"
1612 GNUPGHOME="$HOME/gnupg-home-not-used"
1613 export HOME GNUPGHOME USER_HOME
1614
1615 # "rm -rf" existing trash directory, even if a previous run left it
1616 # with bad permissions.
1617 remove_trash_directory () {
1618         dir="$1"
1619         if ! rm -rf "$dir" 2>/dev/null
1620         then
1621                 chmod -R u+rwx "$dir"
1622                 rm -rf "$dir"
1623         fi
1624         ! test -d "$dir"
1625 }
1626
1627 # Test repository
1628 remove_trash_directory "$TRASH_DIRECTORY" || {
1629         BAIL_OUT 'cannot prepare test area'
1630 }
1631
1632 remove_trash=t
1633 if test -z "$TEST_NO_CREATE_REPO"
1634 then
1635         git init \
1636             ${TEST_CREATE_REPO_NO_TEMPLATE:+--template=} \
1637             "$TRASH_DIRECTORY" >&3 2>&4 ||
1638         error "cannot run git init"
1639 else
1640         mkdir -p "$TRASH_DIRECTORY"
1641 fi
1642
1643 # Use -P to resolve symlinks in our working directory so that the cwd
1644 # in subprocesses like git equals our $PWD (for pathname comparisons).
1645 cd -P "$TRASH_DIRECTORY" || BAIL_OUT "cannot cd -P to \"$TRASH_DIRECTORY\""
1646
1647 start_test_output "$0"
1648
1649 # Convenience
1650 # A regexp to match 5 and 35 hexdigits
1651 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
1652 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
1653
1654 test_oid_init
1655
1656 ZERO_OID=$(test_oid zero)
1657 OID_REGEX=$(echo $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
1658 OIDPATH_REGEX=$(test_oid_to_path $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
1659 EMPTY_TREE=$(test_oid empty_tree)
1660 EMPTY_BLOB=$(test_oid empty_blob)
1661
1662 # Provide an implementation of the 'yes' utility; the upper bound
1663 # limit is there to help Windows that cannot stop this loop from
1664 # wasting cycles when the downstream stops reading, so do not be
1665 # tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
1666 # limit the output of the yes utility", 2016-02-02)
1667 yes () {
1668         if test $# = 0
1669         then
1670                 y=y
1671         else
1672                 y="$*"
1673         fi
1674
1675         i=0
1676         while test $i -lt 99
1677         do
1678                 echo "$y"
1679                 i=$(($i+1))
1680         done
1681 }
1682
1683 # The GIT_TEST_FAIL_PREREQS code hooks into test_set_prereq(), and
1684 # thus needs to be set up really early, and set an internal variable
1685 # for convenience so the hot test_set_prereq() codepath doesn't need
1686 # to call "git env--helper" (via test_bool_env). Only do that work
1687 # if needed by seeing if GIT_TEST_FAIL_PREREQS is set at all.
1688 GIT_TEST_FAIL_PREREQS_INTERNAL=
1689 if test -n "$GIT_TEST_FAIL_PREREQS"
1690 then
1691         if test_bool_env GIT_TEST_FAIL_PREREQS false
1692         then
1693                 GIT_TEST_FAIL_PREREQS_INTERNAL=true
1694                 test_set_prereq FAIL_PREREQS
1695         fi
1696 else
1697         test_lazy_prereq FAIL_PREREQS '
1698                 test_bool_env GIT_TEST_FAIL_PREREQS false
1699         '
1700 fi
1701
1702 # Fix some commands on Windows, and other OS-specific things
1703 uname_s=$(uname -s)
1704 case $uname_s in
1705 *MINGW*)
1706         # Windows has its own (incompatible) sort and find
1707         sort () {
1708                 /usr/bin/sort "$@"
1709         }
1710         find () {
1711                 /usr/bin/find "$@"
1712         }
1713         # git sees Windows-style pwd
1714         pwd () {
1715                 builtin pwd -W
1716         }
1717         # no POSIX permissions
1718         # backslashes in pathspec are converted to '/'
1719         # exec does not inherit the PID
1720         test_set_prereq MINGW
1721         test_set_prereq NATIVE_CRLF
1722         test_set_prereq SED_STRIPS_CR
1723         test_set_prereq GREP_STRIPS_CR
1724         test_set_prereq WINDOWS
1725         GIT_TEST_CMP=mingw_test_cmp
1726         ;;
1727 *CYGWIN*)
1728         test_set_prereq POSIXPERM
1729         test_set_prereq EXECKEEPSPID
1730         test_set_prereq CYGWIN
1731         test_set_prereq SED_STRIPS_CR
1732         test_set_prereq GREP_STRIPS_CR
1733         test_set_prereq WINDOWS
1734         ;;
1735 *)
1736         test_set_prereq POSIXPERM
1737         test_set_prereq BSLASHPSPEC
1738         test_set_prereq EXECKEEPSPID
1739         ;;
1740 esac
1741
1742 # Detect arches where a few things don't work
1743 uname_m=$(uname -m)
1744 case $uname_m in
1745 parisc* | hppa*)
1746         test_set_prereq HPPA
1747         ;;
1748 esac
1749
1750 test_set_prereq REFFILES
1751
1752 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1753 test -z "$NO_CURL" && test_set_prereq LIBCURL
1754 test -z "$NO_PERL" && test_set_prereq PERL
1755 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1756 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1757 test -n "$USE_LIBPCRE2" && test_set_prereq PCRE
1758 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1759 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1760 test -n "$SANITIZE_LEAK" && test_set_prereq SANITIZE_LEAK
1761 test -n "$GIT_VALGRIND_ENABLED" && test_set_prereq VALGRIND
1762
1763 if test -z "$GIT_TEST_CHECK_CACHE_TREE"
1764 then
1765         GIT_TEST_CHECK_CACHE_TREE=true
1766         export GIT_TEST_CHECK_CACHE_TREE
1767 fi
1768
1769 test_lazy_prereq PIPE '
1770         # test whether the filesystem supports FIFOs
1771         test_have_prereq !MINGW,!CYGWIN &&
1772         rm -f testfifo && mkfifo testfifo
1773 '
1774
1775 test_lazy_prereq SYMLINKS '
1776         # test whether the filesystem supports symbolic links
1777         ln -s x y && test -h y
1778 '
1779
1780 test_lazy_prereq SYMLINKS_WINDOWS '
1781         # test whether symbolic links are enabled on Windows
1782         test_have_prereq MINGW &&
1783         cmd //c "mklink y x" &> /dev/null && test -h y
1784 '
1785
1786 test_lazy_prereq FILEMODE '
1787         test "$(git config --bool core.filemode)" = true
1788 '
1789
1790 test_lazy_prereq CASE_INSENSITIVE_FS '
1791         echo good >CamelCase &&
1792         echo bad >camelcase &&
1793         test "$(cat CamelCase)" != good
1794 '
1795
1796 test_lazy_prereq FUNNYNAMES '
1797         test_have_prereq !MINGW &&
1798         touch -- \
1799                 "FUNNYNAMES tab embedded" \
1800                 "FUNNYNAMES \"quote embedded\"" \
1801                 "FUNNYNAMES newline
1802 embedded" 2>/dev/null &&
1803         rm -- \
1804                 "FUNNYNAMES tab embedded" \
1805                 "FUNNYNAMES \"quote embedded\"" \
1806                 "FUNNYNAMES newline
1807 embedded" 2>/dev/null
1808 '
1809
1810 test_lazy_prereq UTF8_NFD_TO_NFC '
1811         # check whether FS converts nfd unicode to nfc
1812         auml=$(printf "\303\244")
1813         aumlcdiar=$(printf "\141\314\210")
1814         >"$auml" &&
1815         test -f "$aumlcdiar"
1816 '
1817
1818 test_lazy_prereq AUTOIDENT '
1819         sane_unset GIT_AUTHOR_NAME &&
1820         sane_unset GIT_AUTHOR_EMAIL &&
1821         git var GIT_AUTHOR_IDENT
1822 '
1823
1824 test_lazy_prereq EXPENSIVE '
1825         test -n "$GIT_TEST_LONG"
1826 '
1827
1828 test_lazy_prereq EXPENSIVE_ON_WINDOWS '
1829         test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
1830 '
1831
1832 test_lazy_prereq USR_BIN_TIME '
1833         test -x /usr/bin/time
1834 '
1835
1836 test_lazy_prereq NOT_ROOT '
1837         uid=$(id -u) &&
1838         test "$uid" != 0
1839 '
1840
1841 test_lazy_prereq JGIT '
1842         jgit --version
1843 '
1844
1845 # SANITY is about "can you correctly predict what the filesystem would
1846 # do by only looking at the permission bits of the files and
1847 # directories?"  A typical example of !SANITY is running the test
1848 # suite as root, where a test may expect "chmod -r file && cat file"
1849 # to fail because file is supposed to be unreadable after a successful
1850 # chmod.  In an environment (i.e. combination of what filesystem is
1851 # being used and who is running the tests) that lacks SANITY, you may
1852 # be able to delete or create a file when the containing directory
1853 # doesn't have write permissions, or access a file even if the
1854 # containing directory doesn't have read or execute permissions.
1855
1856 test_lazy_prereq SANITY '
1857         mkdir SANETESTD.1 SANETESTD.2 &&
1858
1859         chmod +w SANETESTD.1 SANETESTD.2 &&
1860         >SANETESTD.1/x 2>SANETESTD.2/x &&
1861         chmod -w SANETESTD.1 &&
1862         chmod -r SANETESTD.1/x &&
1863         chmod -rx SANETESTD.2 ||
1864         BUG "cannot prepare SANETESTD"
1865
1866         ! test -r SANETESTD.1/x &&
1867         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1868         status=$?
1869
1870         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1871         rm -rf SANETESTD.1 SANETESTD.2 ||
1872         BUG "cannot clean SANETESTD"
1873         return $status
1874 '
1875
1876 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1877 GIT_UNZIP=${GIT_UNZIP:-unzip}
1878 test_lazy_prereq UNZIP '
1879         "$GIT_UNZIP" -v
1880         test $? -ne 127
1881 '
1882
1883 run_with_limited_cmdline () {
1884         (ulimit -s 128 && "$@")
1885 }
1886
1887 test_lazy_prereq CMDLINE_LIMIT '
1888         test_have_prereq !HPPA,!MINGW,!CYGWIN &&
1889         run_with_limited_cmdline true
1890 '
1891
1892 run_with_limited_stack () {
1893         (ulimit -s 128 && "$@")
1894 }
1895
1896 test_lazy_prereq ULIMIT_STACK_SIZE '
1897         test_have_prereq !HPPA,!MINGW,!CYGWIN &&
1898         run_with_limited_stack true
1899 '
1900
1901 run_with_limited_open_files () {
1902         (ulimit -n 32 && "$@")
1903 }
1904
1905 test_lazy_prereq ULIMIT_FILE_DESCRIPTORS '
1906         test_have_prereq !MINGW,!CYGWIN &&
1907         run_with_limited_open_files true
1908 '
1909
1910 build_option () {
1911         git version --build-options |
1912         sed -ne "s/^$1: //p"
1913 }
1914
1915 test_lazy_prereq SIZE_T_IS_64BIT '
1916         test 8 -eq "$(build_option sizeof-size_t)"
1917 '
1918
1919 test_lazy_prereq LONG_IS_64BIT '
1920         test 8 -le "$(build_option sizeof-long)"
1921 '
1922
1923 test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
1924 test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
1925
1926 test_lazy_prereq CURL '
1927         curl --version
1928 '
1929
1930 # SHA1 is a test if the hash algorithm in use is SHA-1.  This is both for tests
1931 # which will not work with other hash algorithms and tests that work but don't
1932 # test anything meaningful (e.g. special values which cause short collisions).
1933 test_lazy_prereq SHA1 '
1934         case "$GIT_DEFAULT_HASH" in
1935         sha1) true ;;
1936         "") test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 ;;
1937         *) false ;;
1938         esac
1939 '
1940
1941 test_lazy_prereq ADD_I_USE_BUILTIN '
1942         test_bool_env GIT_TEST_ADD_I_USE_BUILTIN true
1943 '
1944
1945 # Ensure that no test accidentally triggers a Git command
1946 # that runs the actual maintenance scheduler, affecting a user's
1947 # system permanently.
1948 # Tests that verify the scheduler integration must set this locally
1949 # to avoid errors.
1950 GIT_TEST_MAINT_SCHEDULER="none:exit 1"
1951
1952 # Does this platform support `git fsmonitor--daemon`
1953 #
1954 test_lazy_prereq FSMONITOR_DAEMON '
1955         git version --build-options >output &&
1956         grep "feature: fsmonitor--daemon" output
1957 '