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