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