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 https://www.gnu.org/licenses/ .
  17
  18 # Test the binaries we have just built.  The tests are kept in
  19 # t/ subdirectory and are run in 'trash directory' subdirectory.
  20 if test -z "$TEST_DIRECTORY"
  21 then
  22         # ensure that TEST_DIRECTORY is an absolute path so that it
  23         # is valid even if the current working directory is changed
  24         TEST_DIRECTORY=$(pwd)
  25 else
  26         # The TEST_DIRECTORY will always be the path to the "t"
  27         # directory in the git.git checkout. This is overridden by
  28         # e.g. t/lib-subtest.sh, but only because its $(pwd) is
  29         # different. Those tests still set "$TEST_DIRECTORY" to the
  30         # same path.
  31         #
  32         # See use of "$GIT_BUILD_DIR" and "$TEST_DIRECTORY" below for
  33         # hard assumptions about "$GIT_BUILD_DIR/t" existing and being
  34         # the "$TEST_DIRECTORY", and e.g. "$TEST_DIRECTORY/helper"
  35         # needing to exist.
  36         TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
  37 fi
  38 if test -z "$TEST_OUTPUT_DIRECTORY"
  39 then
  40         # Similarly, override this to store the test-results subdir
  41         # elsewhere
  42         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  43 fi
  44 GIT_BUILD_DIR="${TEST_DIRECTORY%/t}"
  45 if test "$TEST_DIRECTORY" = "$GIT_BUILD_DIR"
  46 then
  47         echo "PANIC: Running in a $TEST_DIRECTORY that doesn't end in '/t'?" >&2
  48         exit 1
  49 fi
  50 if test -f "$GIT_BUILD_DIR/GIT-BUILD-DIR"
  51 then
  52         GIT_BUILD_DIR="$(cat "$GIT_BUILD_DIR/GIT-BUILD-DIR")" || exit 1
  53         # On Windows, we must convert Windows paths lest they contain a colon
  54         case "$(uname -s)" in
  55         *MINGW*)
  56                 GIT_BUILD_DIR="$(cygpath -au "$GIT_BUILD_DIR")"
  57                 ;;
  58         esac
  59 fi
  60
  61 # Prepend a string to a VAR using an arbitrary ":" delimiter, not
  62 # adding the delimiter if VAR or VALUE is empty. I.e. a generalized:
  63 #
  64 #       VAR=$1${VAR:+${1:+$2}$VAR}
  65 #
  66 # Usage (using ":" as the $2 delimiter):
  67 #
  68 #       prepend_var VAR : VALUE
  69 prepend_var () {
  70         eval "$1=\"$3\${$1:+${3:+$2}\$$1}\""
  71 }
  72
  73 # If [AL]SAN is in effect we want to abort so that we notice
  74 # problems. The GIT_SAN_OPTIONS variable can be used to set common
  75 # defaults shared between [AL]SAN_OPTIONS.
  76 prepend_var GIT_SAN_OPTIONS : abort_on_error=1
  77 prepend_var GIT_SAN_OPTIONS : strip_path_prefix="$GIT_BUILD_DIR/"
  78
  79 # If we were built with ASAN, it may complain about leaks
  80 # of program-lifetime variables. Disable it by default to lower
  81 # the noise level. This needs to happen at the start of the script,
  82 # before we even do our "did we build git yet" check (since we don't
  83 # want that one to complain to stderr).
  84 prepend_var ASAN_OPTIONS : $GIT_SAN_OPTIONS
  85 prepend_var ASAN_OPTIONS : detect_leaks=0
  86 export ASAN_OPTIONS
  87
  88 prepend_var LSAN_OPTIONS : $GIT_SAN_OPTIONS
  89 prepend_var LSAN_OPTIONS : fast_unwind_on_malloc=0
  90 export LSAN_OPTIONS
  91
  92 prepend_var UBSAN_OPTIONS : $GIT_SAN_OPTIONS
  93 export UBSAN_OPTIONS
  94
  95 if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  96 then
  97         echo >&2 'error: GIT-BUILD-OPTIONS missing (has Git been built?).'
  98         exit 1
  99 fi
 100 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
 101 export PERL_PATH SHELL_PATH
 102
 103 # In t0000, we need to override test directories of nested testcases. In case
 104 # the developer has TEST_OUTPUT_DIRECTORY part of his build options, then we'd
 105 # reset this value to instead contain what the developer has specified. We thus
 106 # have this knob to allow overriding the directory.
 107 if test -n "${TEST_OUTPUT_DIRECTORY_OVERRIDE}"
 108 then
 109         TEST_OUTPUT_DIRECTORY="${TEST_OUTPUT_DIRECTORY_OVERRIDE}"
 110 fi
 111
 112 # Disallow the use of abbreviated options in the test suite by default
 113 if test -z "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS}"
 114 then
 115         GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
 116         export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
 117 fi
 118
 119 # Explicitly set the default branch name for testing, to avoid the
 120 # transitory "git init" warning under --verbose.
 121 : ${GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME:=master}
 122 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 123
 124 ################################################################
 125 # It appears that people try to run tests without building...
 126 "${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
 127 if test $? != 1
 128 then
 129         if test -n "$GIT_TEST_INSTALLED"
 130         then
 131                 echo >&2 "error: there is no working Git at '$GIT_TEST_INSTALLED'"
 132         else
 133                 echo >&2 'error: you do not seem to have built git yet.'
 134         fi
 135         exit 1
 136 fi
 137
 138 store_arg_to=
 139 opt_required_arg=
 140 # $1: option string
 141 # $2: name of the var where the arg will be stored
 142 mark_option_requires_arg () {
 143         if test -n "$opt_required_arg"
 144         then
 145                 echo "error: options that require args cannot be bundled" \
 146                         "together: '$opt_required_arg' and '$1'" >&2
 147                 exit 1
 148         fi
 149         opt_required_arg=$1
 150         store_arg_to=$2
 151 }
 152
 153 # These functions can be overridden e.g. to output JUnit XML
 154 start_test_output () { :; }
 155 start_test_case_output () { :; }
 156 finalize_test_case_output () { :; }
 157 finalize_test_output () { :; }
 158
 159 parse_option () {
 160         local opt="$1"
 161
 162         case "$opt" in
 163         -d|--d|--de|--deb|--debu|--debug)
 164                 debug=t ;;
 165         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 166                 immediate=t ;;
 167         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 168                 GIT_TEST_LONG=t; export GIT_TEST_LONG ;;
 169         -r)
 170                 mark_option_requires_arg "$opt" run_list
 171                 ;;
 172         --run=*)
 173                 run_list=${opt#--*=} ;;
 174         -h|--h|--he|--hel|--help)
 175                 help=t ;;
 176         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 177                 verbose=t ;;
 178         --verbose-only=*)
 179                 verbose_only=${opt#--*=}
 180                 ;;
 181         -q|--q|--qu|--qui|--quie|--quiet)
 182                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 183                 # passed without the ok/not ok details is always an error.
 184                 test -z "$HARNESS_ACTIVE" && quiet=t ;;
 185         --with-dashes)
 186                 with_dashes=t ;;
 187         --no-bin-wrappers)
 188                 no_bin_wrappers=t ;;
 189         --no-color)
 190                 color= ;;
 191         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 192                 valgrind=memcheck
 193                 tee=t
 194                 ;;
 195         --valgrind=*)
 196                 valgrind=${opt#--*=}
 197                 tee=t
 198                 ;;
 199         --valgrind-only=*)
 200                 valgrind_only=${opt#--*=}
 201                 tee=t
 202                 ;;
 203         --tee)
 204                 tee=t ;;
 205         --root=*)
 206                 root=${opt#--*=} ;;
 207         --chain-lint)
 208                 GIT_TEST_CHAIN_LINT=1 ;;
 209         --no-chain-lint)
 210                 GIT_TEST_CHAIN_LINT=0 ;;
 211         -x)
 212                 trace=t ;;
 213         -V|--verbose-log)
 214                 verbose_log=t
 215                 tee=t
 216                 ;;
 217         --write-junit-xml)
 218                 . "$TEST_DIRECTORY/test-lib-junit.sh"
 219                 ;;
 220         --github-workflow-markup)
 221                 . "$TEST_DIRECTORY/test-lib-github-workflow-markup.sh"
 222                 ;;
 223         --stress)
 224                 stress=t ;;
 225         --stress=*)
 226                 echo "error: --stress does not accept an argument: '$opt'" >&2
 227                 echo "did you mean --stress-jobs=${opt#*=} or --stress-limit=${opt#*=}?" >&2
 228                 exit 1
 229                 ;;
 230         --stress-jobs=*)
 231                 stress=t;
 232                 stress_jobs=${opt#--*=}
 233                 case "$stress_jobs" in
 234                 *[!0-9]*|0*|"")
 235                         echo "error: --stress-jobs=<N> requires the number of jobs to run" >&2
 236                         exit 1
 237                         ;;
 238                 *)      # Good.
 239                         ;;
 240                 esac
 241                 ;;
 242         --stress-limit=*)
 243                 stress=t;
 244                 stress_limit=${opt#--*=}
 245                 case "$stress_limit" in
 246                 *[!0-9]*|0*|"")
 247                         echo "error: --stress-limit=<N> requires the number of repetitions" >&2
 248                         exit 1
 249                         ;;
 250                 *)      # Good.
 251                         ;;
 252                 esac
 253                 ;;
 254         --invert-exit-code)
 255                 invert_exit_code=t
 256                 ;;
 257         *)
 258                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 259         esac
 260 }
 261
 262 # Parse options while taking care to leave $@ intact, so we will still
 263 # have all the original command line options when executing the test
 264 # script again for '--tee' and '--verbose-log' later.
 265 for opt
 266 do
 267         if test -n "$store_arg_to"
 268         then
 269                 eval $store_arg_to=\$opt
 270                 store_arg_to=
 271                 opt_required_arg=
 272                 continue
 273         fi
 274
 275         case "$opt" in
 276         --*|-?)
 277                 parse_option "$opt" ;;
 278         -?*)
 279                 # bundled short options must be fed separately to parse_option
 280                 opt=${opt#-}
 281                 while test -n "$opt"
 282                 do
 283                         extra=${opt#?}
 284                         this=${opt%$extra}
 285                         opt=$extra
 286                         parse_option "-$this"
 287                 done
 288                 ;;
 289         *)
 290                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 291         esac
 292 done
 293 if test -n "$store_arg_to"
 294 then
 295         echo "error: $opt_required_arg requires an argument" >&2
 296         exit 1
 297 fi
 298
 299 if test -n "$valgrind_only"
 300 then
 301         test -z "$valgrind" && valgrind=memcheck
 302         test -z "$verbose" && verbose_only="$valgrind_only"
 303 elif test -n "$valgrind"
 304 then
 305         test -z "$verbose_log" && verbose=t
 306 fi
 307
 308 if test -n "$stress"
 309 then
 310         verbose=t
 311         trace=t
 312         immediate=t
 313 fi
 314
 315 TEST_STRESS_JOB_SFX="${GIT_TEST_STRESS_JOB_NR:+.stress-$GIT_TEST_STRESS_JOB_NR}"
 316 TEST_NAME="$(basename "$0" .sh)"
 317 TEST_NUMBER="${TEST_NAME%%-*}"
 318 TEST_NUMBER="${TEST_NUMBER#t}"
 319 TEST_RESULTS_DIR="$TEST_OUTPUT_DIRECTORY/test-results"
 320 TEST_RESULTS_BASE="$TEST_RESULTS_DIR/$TEST_NAME$TEST_STRESS_JOB_SFX"
 321 TEST_RESULTS_SAN_FILE_PFX=trace
 322 TEST_RESULTS_SAN_DIR_SFX=leak
 323 TEST_RESULTS_SAN_FILE=
 324 TEST_RESULTS_SAN_DIR="$TEST_RESULTS_DIR/$TEST_NAME.$TEST_RESULTS_SAN_DIR_SFX"
 325 TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP=
 326 TRASH_DIRECTORY="trash directory.$TEST_NAME$TEST_STRESS_JOB_SFX"
 327 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 328 case "$TRASH_DIRECTORY" in
 329 /*) ;; # absolute path is good
 330  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 331 esac
 332
 333 # Utility functions using $TEST_RESULTS_* variables
 334 nr_san_dir_leaks_ () {
 335         # stderr piped to /dev/null because the directory may have
 336         # been "rmdir"'d already.
 337         find "$TEST_RESULTS_SAN_DIR" \
 338                 -type f \
 339                 -name "$TEST_RESULTS_SAN_FILE_PFX.*" 2>/dev/null |
 340         xargs grep -lv "Unable to get registers from thread" |
 341         wc -l
 342 }
 343
 344 # If --stress was passed, run this test repeatedly in several parallel loops.
 345 if test "$GIT_TEST_STRESS_STARTED" = "done"
 346 then
 347         : # Don't stress test again.
 348 elif test -n "$stress"
 349 then
 350         if test -n "$stress_jobs"
 351         then
 352                 job_count=$stress_jobs
 353         elif test -n "$GIT_TEST_STRESS_LOAD"
 354         then
 355                 job_count="$GIT_TEST_STRESS_LOAD"
 356         elif job_count=$(getconf _NPROCESSORS_ONLN 2>/dev/null) &&
 357              test -n "$job_count"
 358         then
 359                 job_count=$((2 * $job_count))
 360         else
 361                 job_count=8
 362         fi
 363
 364         mkdir -p "$TEST_RESULTS_DIR"
 365         stressfail="$TEST_RESULTS_BASE.stress-failed"
 366         rm -f "$stressfail"
 367
 368         stress_exit=0
 369         trap '
 370                 kill $job_pids 2>/dev/null
 371                 wait
 372                 stress_exit=1
 373         ' TERM INT HUP
 374
 375         job_pids=
 376         job_nr=0
 377         while test $job_nr -lt "$job_count"
 378         do
 379                 (
 380                         GIT_TEST_STRESS_STARTED=done
 381                         GIT_TEST_STRESS_JOB_NR=$job_nr
 382                         export GIT_TEST_STRESS_STARTED GIT_TEST_STRESS_JOB_NR
 383
 384                         trap '
 385                                 kill $test_pid 2>/dev/null
 386                                 wait
 387                                 exit 1
 388                         ' TERM INT
 389
 390                         cnt=1
 391                         while ! test -e "$stressfail" &&
 392                               { test -z "$stress_limit" ||
 393                                 test $cnt -le $stress_limit ; }
 394                         do
 395                                 $TEST_SHELL_PATH "$0" "$@" >"$TEST_RESULTS_BASE.stress-$job_nr.out" 2>&1 &
 396                                 test_pid=$!
 397
 398                                 if wait $test_pid
 399                                 then
 400                                         printf "OK   %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 401                                 else
 402                                         echo $GIT_TEST_STRESS_JOB_NR >>"$stressfail"
 403                                         printf "FAIL %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 404                                 fi
 405                                 cnt=$(($cnt + 1))
 406                         done
 407                 ) &
 408                 job_pids="$job_pids $!"
 409                 job_nr=$(($job_nr + 1))
 410         done
 411
 412         wait
 413
 414         if test -f "$stressfail"
 415         then
 416                 stress_exit=1
 417                 echo "Log(s) of failed test run(s):"
 418                 for failed_job_nr in $(sort -n "$stressfail")
 419                 do
 420                         echo "Contents of '$TEST_RESULTS_BASE.stress-$failed_job_nr.out':"
 421                         cat "$TEST_RESULTS_BASE.stress-$failed_job_nr.out"
 422                 done
 423                 rm -rf "$TRASH_DIRECTORY.stress-failed"
 424                 # Move the last one.
 425                 mv "$TRASH_DIRECTORY.stress-$failed_job_nr" "$TRASH_DIRECTORY.stress-failed"
 426         fi
 427
 428         exit $stress_exit
 429 fi
 430
 431 # if --tee was passed, write the output not only to the terminal, but
 432 # additionally to the file test-results/$BASENAME.out, too.
 433 if test "$GIT_TEST_TEE_STARTED" = "done"
 434 then
 435         : # do not redirect again
 436 elif test -n "$tee"
 437 then
 438         mkdir -p "$TEST_RESULTS_DIR"
 439
 440         # Make this filename available to the sub-process in case it is using
 441         # --verbose-log.
 442         GIT_TEST_TEE_OUTPUT_FILE=$TEST_RESULTS_BASE.out
 443         export GIT_TEST_TEE_OUTPUT_FILE
 444
 445         # Truncate before calling "tee -a" to get rid of the results
 446         # from any previous runs.
 447         >"$GIT_TEST_TEE_OUTPUT_FILE"
 448
 449         (GIT_TEST_TEE_STARTED=done ${TEST_SHELL_PATH} "$0" "$@" 2>&1;
 450          echo $? >"$TEST_RESULTS_BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
 451         test "$(cat "$TEST_RESULTS_BASE.exit")" = 0
 452         exit
 453 fi
 454
 455 if test -n "$trace" && test -n "$test_untraceable"
 456 then
 457         # '-x' tracing requested, but this test script can't be reliably
 458         # traced, unless it is run with a Bash version supporting
 459         # BASH_XTRACEFD (introduced in Bash v4.1).
 460         #
 461         # Perform this version check _after_ the test script was
 462         # potentially re-executed with $TEST_SHELL_PATH for '--tee' or
 463         # '--verbose-log', so the right shell is checked and the
 464         # warning is issued only once.
 465         if test -n "$BASH_VERSION" && eval '
 466              test ${BASH_VERSINFO[0]} -gt 4 || {
 467                test ${BASH_VERSINFO[0]} -eq 4 &&
 468                test ${BASH_VERSINFO[1]} -ge 1
 469              }
 470            '
 471         then
 472                 : Executed by a Bash version supporting BASH_XTRACEFD.  Good.
 473         else
 474                 echo >&2 "warning: ignoring -x; '$0' is untraceable without BASH_XTRACEFD"
 475                 trace=
 476         fi
 477 fi
 478 if test -n "$trace" && test -z "$verbose_log"
 479 then
 480         verbose=t
 481 fi
 482
 483 # Since bash 5.0, checkwinsize is enabled by default which does
 484 # update the COLUMNS variable every time a non-builtin command
 485 # completes, even for non-interactive shells.
 486 # Disable that since we are aiming for repeatability.
 487 test -n "$BASH_VERSION" && shopt -u checkwinsize 2>/dev/null
 488
 489 # For repeatability, reset the environment to known value.
 490 # TERM is sanitized below, after saving color control sequences.
 491 LANG=C
 492 LC_ALL=C
 493 PAGER=cat
 494 TZ=UTC
 495 COLUMNS=80
 496 export LANG LC_ALL PAGER TZ COLUMNS
 497 EDITOR=:
 498
 499 # A call to "unset" with no arguments causes at least Solaris 10
 500 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
 501 # deriving from the command substitution clustered with the other
 502 # ones.
 503 unset VISUAL EMAIL LANGUAGE $("$PERL_PATH" -e '
 504         my @env = keys %ENV;
 505         my $ok = join("|", qw(
 506                 TRACE
 507                 DEBUG
 508                 TEST
 509                 .*_TEST
 510                 PROVE
 511                 VALGRIND
 512                 UNZIP
 513                 PERF_
 514                 CURL_VERBOSE
 515                 TRACE_CURL
 516         ));
 517         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 518         print join("\n", @vars);
 519 ')
 520 unset XDG_CACHE_HOME
 521 unset XDG_CONFIG_HOME
 522 unset GITPERLLIB
 523 unset GIT_TRACE2_PARENT_NAME
 524 unset GIT_TRACE2_PARENT_SID
 525 TEST_AUTHOR_LOCALNAME=author
 526 TEST_AUTHOR_DOMAIN=example.com
 527 GIT_AUTHOR_EMAIL=${TEST_AUTHOR_LOCALNAME}@${TEST_AUTHOR_DOMAIN}
 528 GIT_AUTHOR_NAME='A U Thor'
 529 GIT_AUTHOR_DATE='1112354055 +0200'
 530 TEST_COMMITTER_LOCALNAME=committer
 531 TEST_COMMITTER_DOMAIN=example.com
 532 GIT_COMMITTER_EMAIL=${TEST_COMMITTER_LOCALNAME}@${TEST_COMMITTER_DOMAIN}
 533 GIT_COMMITTER_NAME='C O Mitter'
 534 GIT_COMMITTER_DATE='1112354055 +0200'
 535 GIT_MERGE_VERBOSITY=5
 536 GIT_MERGE_AUTOEDIT=no
 537 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 538 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 539 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 540 export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 541 export EDITOR
 542
 543 GIT_DEFAULT_HASH="${GIT_TEST_DEFAULT_HASH:-sha1}"
 544 export GIT_DEFAULT_HASH
 545 GIT_DEFAULT_REF_FORMAT="${GIT_TEST_DEFAULT_REF_FORMAT:-files}"
 546 export GIT_DEFAULT_REF_FORMAT
 547 GIT_TEST_MERGE_ALGORITHM="${GIT_TEST_MERGE_ALGORITHM:-ort}"
 548 export GIT_TEST_MERGE_ALGORITHM
 549
 550 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 551 GIT_TRACE_BARE=1
 552 export GIT_TRACE_BARE
 553
 554 # Some tests scan the GIT_TRACE2_EVENT feed for events, but the
 555 # default depth is 2, which frequently causes issues when the
 556 # events are wrapped in new regions. Set it to a sufficiently
 557 # large depth to avoid custom changes in the test suite.
 558 GIT_TRACE2_EVENT_NESTING=100
 559 export GIT_TRACE2_EVENT_NESTING
 560
 561 # Use specific version of the index file format
 562 if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
 563 then
 564         GIT_INDEX_VERSION="$GIT_TEST_INDEX_VERSION"
 565         export GIT_INDEX_VERSION
 566 fi
 567
 568 if test -n "$GIT_TEST_PERL_FATAL_WARNINGS"
 569 then
 570         GIT_PERL_FATAL_WARNINGS=1
 571         export GIT_PERL_FATAL_WARNINGS
 572 fi
 573
 574 case $GIT_TEST_FSYNC in
 575 '')
 576         GIT_TEST_FSYNC=0
 577         export GIT_TEST_FSYNC
 578         ;;
 579 esac
 580
 581 # Add libc MALLOC and MALLOC_PERTURB test only if we are not executing
 582 # the test with valgrind and have not compiled with conflict SANITIZE
 583 # options.
 584 if test -n "$valgrind" ||
 585    test -n "$SANITIZE_ADDRESS" ||
 586    test -n "$SANITIZE_LEAK" ||
 587    test -n "$TEST_NO_MALLOC_CHECK"
 588 then
 589         setup_malloc_check () {
 590                 : nothing
 591         }
 592         teardown_malloc_check () {
 593                 : nothing
 594         }
 595 else
 596         _USE_GLIBC_TUNABLES=
 597         if _GLIBC_VERSION=$(getconf GNU_LIBC_VERSION 2>/dev/null) &&
 598            _GLIBC_VERSION=${_GLIBC_VERSION#"glibc "} &&
 599            expr 2.34 \<= "$_GLIBC_VERSION" >/dev/null
 600         then
 601                 _USE_GLIBC_TUNABLES=YesPlease
 602         fi
 603         setup_malloc_check () {
 604                 local g
 605                 local t
 606                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 607                 export MALLOC_CHECK_ MALLOC_PERTURB_
 608                 if test -n "$_USE_GLIBC_TUNABLES"
 609                 then
 610                         g=
 611                         LD_PRELOAD="libc_malloc_debug.so.0"
 612                         for t in \
 613                                 glibc.malloc.check=1 \
 614                                 glibc.malloc.perturb=165
 615                         do
 616                                 g="${g#:}:$t"
 617                         done
 618                         GLIBC_TUNABLES=$g
 619                         export LD_PRELOAD GLIBC_TUNABLES
 620                 fi
 621         }
 622         teardown_malloc_check () {
 623                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 624                 unset LD_PRELOAD GLIBC_TUNABLES
 625         }
 626 fi
 627
 628 # Protect ourselves from common misconfiguration to export
 629 # CDPATH into the environment
 630 unset CDPATH
 631
 632 unset GREP_OPTIONS
 633 unset UNZIP
 634
 635 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 636 1|2|true)
 637         GIT_TRACE=4
 638         ;;
 639 esac
 640
 641 # Line feed
 642 LF='
 643 '
 644
 645 # Single quote
 646 SQ=\'
 647
 648 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 649 # when case-folding filenames
 650 u200c=$(printf '\342\200\214')
 651
 652 export _x05 _x35 LF u200c EMPTY_TREE EMPTY_BLOB ZERO_OID OID_REGEX
 653
 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 "$verbose_log" = t
1042         }
1043 }
1044
1045 # This is a separate function because some tests use
1046 # "return" to end a test_expect_success block early
1047 # (and we want to make sure we run any cleanup like
1048 # "set +x").
1049 test_eval_inner_ () {
1050         eval "$*"
1051 }
1052
1053 test_eval_ () {
1054         # If "-x" tracing is in effect, then we want to avoid polluting stderr
1055         # with non-test commands. But once in "set -x" mode, we cannot prevent
1056         # the shell from printing the "set +x" to turn it off (nor the saving
1057         # of $? before that). But we can make sure that the output goes to
1058         # /dev/null.
1059         #
1060         # There are a few subtleties here:
1061         #
1062         #   - we have to redirect descriptor 4 in addition to 2, to cover
1063         #     BASH_XTRACEFD
1064         #
1065         #   - the actual eval has to come before the redirection block (since
1066         #     it needs to see descriptor 4 to set up its stderr)
1067         #
1068         #   - likewise, any error message we print must be outside the block to
1069         #     access descriptor 4
1070         #
1071         #   - checking $? has to come immediately after the eval, but it must
1072         #     be _inside_ the block to avoid polluting the "set -x" output
1073         #
1074
1075         # Do not add anything extra (including LF) after '$*'
1076         test_eval_inner_ </dev/null >&3 2>&4 "
1077                 want_trace && trace_level_=$(($trace_level_+1)) && set -x
1078                 $*"
1079         {
1080                 test_eval_ret_=$?
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 fail_117 () {
1096         return 117
1097 }
1098
1099 test_run_ () {
1100         test_cleanup=:
1101         expecting_failure=$2
1102
1103         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
1104                 # 117 is magic because it is unlikely to match the exit
1105                 # code of other programs
1106                 test_eval_inner_ "fail_117 && $1" </dev/null >&3 2>&4
1107                 if test $? != 117
1108                 then
1109                         BUG "broken &&-chain: $1"
1110                 fi
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 $test_missing_prereq
1296
1297                 EOF
1298         fi
1299
1300         if test -z "$passes_sanitize_leak" && test_bool_env TEST_PASSES_SANITIZE_LEAK false
1301         then
1302                 BAIL_OUT "Please, set TEST_PASSES_SANITIZE_LEAK before sourcing test-lib.sh"
1303         fi
1304
1305         if test "$test_fixed" != 0
1306         then
1307                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
1308         fi
1309         if test "$test_broken" != 0
1310         then
1311                 say_color warn "# still have $test_broken known breakage(s)"
1312         fi
1313         if test "$test_broken" != 0 || test "$test_fixed" != 0
1314         then
1315                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
1316                 msg="remaining $test_remaining test(s)"
1317         else
1318                 test_remaining=$test_count
1319                 msg="$test_count test(s)"
1320         fi
1321         case "$test_failure" in
1322         0)
1323                 if test $test_remaining -gt 0
1324                 then
1325                         say_color pass "# passed all $msg"
1326                 fi
1327
1328                 # Maybe print SKIP message
1329                 test -z "$skip_all" || skip_all="# SKIP $skip_all"
1330                 case "$test_count" in
1331                 0)
1332                         say "1..$test_count${skip_all:+ $skip_all}"
1333                         ;;
1334                 *)
1335                         test -z "$skip_all" ||
1336                         say_color warn "$skip_all"
1337                         say "1..$test_count"
1338                         ;;
1339                 esac
1340
1341                 if test -n "$stress" && test -n "$invert_exit_code"
1342                 then
1343                         # We're about to move our "$TRASH_DIRECTORY"
1344                         # to "$TRASH_DIRECTORY.stress-failed" if
1345                         # --stress is combined with
1346                         # --invert-exit-code.
1347                         say "with --stress and --invert-exit-code we're not removing '$TRASH_DIRECTORY'"
1348                 elif test -z "$debug" && test -n "$remove_trash"
1349                 then
1350                         test -d "$TRASH_DIRECTORY" ||
1351                         error "Tests passed but trash directory already removed before test cleanup; aborting"
1352
1353                         cd "$TRASH_DIRECTORY/.." &&
1354                         rm -fr "$TRASH_DIRECTORY" || {
1355                                 # try again in a bit
1356                                 sleep 5;
1357                                 rm -fr "$TRASH_DIRECTORY"
1358                         } ||
1359                         error "Tests passed but test cleanup failed; aborting"
1360                 fi
1361
1362                 check_test_results_san_file_ "$test_failure"
1363
1364                 if test -z "$skip_all" && test -n "$invert_exit_code"
1365                 then
1366                         say_color warn "# faking up non-zero exit with --invert-exit-code"
1367                         GIT_EXIT_OK=t
1368                         exit 1
1369                 fi
1370
1371                 test_at_end_hook_
1372
1373                 GIT_EXIT_OK=t
1374                 exit 0 ;;
1375
1376         *)
1377                 say_color error "# failed $test_failure among $msg"
1378                 say "1..$test_count"
1379
1380                 check_test_results_san_file_ "$test_failure"
1381
1382                 if test -n "$invert_exit_code"
1383                 then
1384                         _invert_exit_code_failure_end_blurb
1385                         GIT_EXIT_OK=t
1386                         exit 0
1387                 fi
1388
1389                 GIT_EXIT_OK=t
1390                 exit 1 ;;
1391
1392         esac
1393 }
1394
1395 if test -n "$valgrind"
1396 then
1397         make_symlink () {
1398                 test -h "$2" &&
1399                 test "$1" = "$(readlink "$2")" || {
1400                         # be super paranoid
1401                         if mkdir "$2".lock
1402                         then
1403                                 rm -f "$2" &&
1404                                 ln -s "$1" "$2" &&
1405                                 rm -r "$2".lock
1406                         else
1407                                 while test -d "$2".lock
1408                                 do
1409                                         say "Waiting for lock on $2."
1410                                         sleep 1
1411                                 done
1412                         fi
1413                 }
1414         }
1415
1416         make_valgrind_symlink () {
1417                 # handle only executables, unless they are shell libraries that
1418                 # need to be in the exec-path.
1419                 test -x "$1" ||
1420                 test "# " = "$(test_copy_bytes 2 <"$1")" ||
1421                 return;
1422
1423                 base=$(basename "$1")
1424                 case "$base" in
1425                 test-*)
1426                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
1427                         ;;
1428                 *)
1429                         symlink_target="$GIT_BUILD_DIR/$base"
1430                         ;;
1431                 esac
1432                 # do not override scripts
1433                 if test -x "$symlink_target" &&
1434                     test ! -d "$symlink_target" &&
1435                     test "#!" != "$(test_copy_bytes 2 <"$symlink_target")"
1436                 then
1437                         symlink_target=../valgrind.sh
1438                 fi
1439                 case "$base" in
1440                 *.sh|*.perl)
1441                         symlink_target=../unprocessed-script
1442                 esac
1443                 # create the link, or replace it if it is out of date
1444                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
1445         }
1446
1447         # override all git executables in TEST_DIRECTORY/..
1448         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
1449         mkdir -p "$GIT_VALGRIND"/bin
1450         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
1451         do
1452                 make_valgrind_symlink $file
1453         done
1454         # special-case the mergetools loadables
1455         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
1456         OLDIFS=$IFS
1457         IFS=:
1458         for path in $PATH
1459         do
1460                 ls "$path"/git-* 2> /dev/null |
1461                 while read file
1462                 do
1463                         make_valgrind_symlink "$file"
1464                 done
1465         done
1466         IFS=$OLDIFS
1467         PATH=$GIT_VALGRIND/bin:$PATH
1468         GIT_EXEC_PATH=$GIT_VALGRIND/bin
1469         export GIT_VALGRIND
1470         GIT_VALGRIND_MODE="$valgrind"
1471         export GIT_VALGRIND_MODE
1472         GIT_VALGRIND_ENABLED=t
1473         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
1474         export GIT_VALGRIND_ENABLED
1475 elif test -n "$GIT_TEST_INSTALLED"
1476 then
1477         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
1478         error "Cannot run git from $GIT_TEST_INSTALLED."
1479         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$PATH
1480         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
1481 else # normal case, use ../bin-wrappers only unless $with_dashes:
1482         if test -n "$no_bin_wrappers"
1483         then
1484                 with_dashes=t
1485         else
1486                 git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
1487                 if ! test -x "$git_bin_dir/git"
1488                 then
1489                         if test -z "$with_dashes"
1490                         then
1491                                 say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
1492                         fi
1493                         with_dashes=t
1494                 fi
1495                 PATH="$git_bin_dir:$PATH"
1496         fi
1497         GIT_EXEC_PATH=$GIT_BUILD_DIR
1498         if test -n "$with_dashes"
1499         then
1500                 PATH="$GIT_BUILD_DIR:$GIT_BUILD_DIR/t/helper:$PATH"
1501         fi
1502 fi
1503 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
1504 GIT_CONFIG_NOSYSTEM=1
1505 GIT_ATTR_NOSYSTEM=1
1506 GIT_CEILING_DIRECTORIES="$TRASH_DIRECTORY/.."
1507 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM GIT_CEILING_DIRECTORIES
1508
1509 if test -z "$GIT_TEST_CMP"
1510 then
1511         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
1512         then
1513                 GIT_TEST_CMP="$DIFF -c"
1514         else
1515                 GIT_TEST_CMP="$DIFF -u"
1516         fi
1517 fi
1518
1519 GITPERLLIB="$GIT_BUILD_DIR"/perl/build/lib
1520 export GITPERLLIB
1521 test -d "$GIT_BUILD_DIR"/templates/blt || {
1522         BAIL_OUT "You haven't built things yet, have you?"
1523 }
1524
1525 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
1526 then
1527         BAIL_OUT 'You need to build test-tool; Run "make t/helper/test-tool" in the source (toplevel) directory'
1528 fi
1529
1530 # Are we running this test at all?
1531 remove_trash=
1532 this_test=${0##*/}
1533 this_test=${this_test%%-*}
1534 if match_pattern_list "$this_test" "$GIT_SKIP_TESTS"
1535 then
1536         say_color info >&3 "skipping test $this_test altogether"
1537         skip_all="skip all tests in $this_test"
1538         test_done
1539 fi
1540
1541 BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK () {
1542         BAIL_OUT "$1 has no effect except when compiled with SANITIZE=leak"
1543 }
1544
1545 if test -n "$SANITIZE_LEAK"
1546 then
1547         # Normalize with test_bool_env
1548         passes_sanitize_leak=
1549
1550         # We need to see TEST_PASSES_SANITIZE_LEAK in "test-tool
1551         # env-helper" (via test_bool_env)
1552         export TEST_PASSES_SANITIZE_LEAK
1553         if test_bool_env TEST_PASSES_SANITIZE_LEAK false
1554         then
1555                 passes_sanitize_leak=t
1556         fi
1557
1558         if test "$GIT_TEST_PASSING_SANITIZE_LEAK" = "check"
1559         then
1560                 sanitize_leak_check=t
1561                 if test -n "$invert_exit_code"
1562                 then
1563                         BAIL_OUT "cannot use --invert-exit-code under GIT_TEST_PASSING_SANITIZE_LEAK=check"
1564                 fi
1565
1566                 if test -z "$passes_sanitize_leak"
1567                 then
1568                         say "in GIT_TEST_PASSING_SANITIZE_LEAK=check mode, setting --invert-exit-code for TEST_PASSES_SANITIZE_LEAK != true"
1569                         invert_exit_code=t
1570                 fi
1571         elif test -z "$passes_sanitize_leak" &&
1572              test_bool_env GIT_TEST_PASSING_SANITIZE_LEAK false
1573         then
1574                 skip_all="skipping $this_test under GIT_TEST_PASSING_SANITIZE_LEAK=true"
1575                 test_done
1576         fi
1577
1578         if test_bool_env GIT_TEST_SANITIZE_LEAK_LOG false
1579         then
1580                 if ! mkdir -p "$TEST_RESULTS_SAN_DIR"
1581                 then
1582                         BAIL_OUT "cannot create $TEST_RESULTS_SAN_DIR"
1583                 fi &&
1584                 TEST_RESULTS_SAN_FILE="$TEST_RESULTS_SAN_DIR/$TEST_RESULTS_SAN_FILE_PFX"
1585
1586                 # In case "test-results" is left over from a previous
1587                 # run: Only report if new leaks show up.
1588                 TEST_RESULTS_SAN_DIR_NR_LEAKS_STARTUP=$(nr_san_dir_leaks_)
1589
1590                 # Don't litter *.leak dirs if there was nothing to report
1591                 test_atexit "rmdir \"$TEST_RESULTS_SAN_DIR\" 2>/dev/null || :"
1592
1593                 prepend_var LSAN_OPTIONS : dedup_token_length=9999
1594                 prepend_var LSAN_OPTIONS : log_exe_name=1
1595                 prepend_var LSAN_OPTIONS : log_path=\"$TEST_RESULTS_SAN_FILE\"
1596                 export LSAN_OPTIONS
1597         fi
1598 elif test "$GIT_TEST_PASSING_SANITIZE_LEAK" = "check" ||
1599      test_bool_env GIT_TEST_PASSING_SANITIZE_LEAK false
1600 then
1601         BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK "GIT_TEST_PASSING_SANITIZE_LEAK=true"
1602 elif test_bool_env GIT_TEST_SANITIZE_LEAK_LOG false
1603 then
1604         BAIL_OUT_ENV_NEEDS_SANITIZE_LEAK "GIT_TEST_SANITIZE_LEAK_LOG=true"
1605 fi
1606
1607 if test "${GIT_TEST_CHAIN_LINT:-1}" != 0 &&
1608    test "${GIT_TEST_EXT_CHAIN_LINT:-1}" != 0
1609 then
1610         "$PERL_PATH" "$TEST_DIRECTORY/chainlint.pl" "$0" ||
1611                 BUG "lint error (see '?!...!? annotations above)"
1612 fi
1613
1614 # Last-minute variable setup
1615 USER_HOME="$HOME"
1616 HOME="$TRASH_DIRECTORY"
1617 GNUPGHOME="$HOME/gnupg-home-not-used"
1618 export HOME GNUPGHOME USER_HOME
1619
1620 # "rm -rf" existing trash directory, even if a previous run left it
1621 # with bad permissions.
1622 remove_trash_directory () {
1623         dir="$1"
1624         if ! rm -rf "$dir" 2>/dev/null
1625         then
1626                 chmod -R u+rwx "$dir"
1627                 rm -rf "$dir"
1628         fi
1629         ! test -d "$dir"
1630 }
1631
1632 # Test repository
1633 remove_trash_directory "$TRASH_DIRECTORY" || {
1634         BAIL_OUT 'cannot prepare test area'
1635 }
1636
1637 remove_trash=t
1638 if test -z "$TEST_NO_CREATE_REPO"
1639 then
1640         git init \
1641             ${TEST_CREATE_REPO_NO_TEMPLATE:+--template=} \
1642             "$TRASH_DIRECTORY" >&3 2>&4 ||
1643         error "cannot run git init"
1644 else
1645         mkdir -p "$TRASH_DIRECTORY"
1646 fi
1647
1648 # Use -P to resolve symlinks in our working directory so that the cwd
1649 # in subprocesses like git equals our $PWD (for pathname comparisons).
1650 cd -P "$TRASH_DIRECTORY" || BAIL_OUT "cannot cd -P to \"$TRASH_DIRECTORY\""
1651
1652 start_test_output "$0"
1653
1654 # Convenience
1655 # A regexp to match 5 and 35 hexdigits
1656 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
1657 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
1658
1659 test_oid_init
1660
1661 ZERO_OID=$(test_oid zero)
1662 OID_REGEX=$(echo $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
1663 OIDPATH_REGEX=$(test_oid_to_path $ZERO_OID | sed -e 's/0/[0-9a-f]/g')
1664 EMPTY_TREE=$(test_oid empty_tree)
1665 EMPTY_BLOB=$(test_oid empty_blob)
1666
1667 # Provide an implementation of the 'yes' utility; the upper bound
1668 # limit is there to help Windows that cannot stop this loop from
1669 # wasting cycles when the downstream stops reading, so do not be
1670 # tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
1671 # limit the output of the yes utility", 2016-02-02)
1672 yes () {
1673         if test $# = 0
1674         then
1675                 y=y
1676         else
1677                 y="$*"
1678         fi
1679
1680         i=0
1681         while test $i -lt 99
1682         do
1683                 echo "$y"
1684                 i=$(($i+1))
1685         done
1686 }
1687
1688 # The GIT_TEST_FAIL_PREREQS code hooks into test_set_prereq(), and
1689 # thus needs to be set up really early, and set an internal variable
1690 # for convenience so the hot test_set_prereq() codepath doesn't need
1691 # to call "test-tool env-helper" (via test_bool_env). Only do that work
1692 # if needed by seeing if GIT_TEST_FAIL_PREREQS is set at all.
1693 GIT_TEST_FAIL_PREREQS_INTERNAL=
1694 if test -n "$GIT_TEST_FAIL_PREREQS"
1695 then
1696         if test_bool_env GIT_TEST_FAIL_PREREQS false
1697         then
1698                 GIT_TEST_FAIL_PREREQS_INTERNAL=true
1699                 test_set_prereq FAIL_PREREQS
1700         fi
1701 else
1702         test_lazy_prereq FAIL_PREREQS '
1703                 test_bool_env GIT_TEST_FAIL_PREREQS false
1704         '
1705 fi
1706
1707 # Fix some commands on Windows, and other OS-specific things
1708 uname_s=$(uname -s)
1709 case $uname_s in
1710 *MINGW*)
1711         # Windows has its own (incompatible) sort and find
1712         sort () {
1713                 /usr/bin/sort "$@"
1714         }
1715         find () {
1716                 /usr/bin/find "$@"
1717         }
1718         # git sees Windows-style pwd
1719         pwd () {
1720                 builtin pwd -W
1721         }
1722         # no POSIX permissions
1723         # backslashes in pathspec are converted to '/'
1724         # exec does not inherit the PID
1725         test_set_prereq MINGW
1726         test_set_prereq NATIVE_CRLF
1727         test_set_prereq SED_STRIPS_CR
1728         test_set_prereq GREP_STRIPS_CR
1729         test_set_prereq WINDOWS
1730         GIT_TEST_CMP="GIT_DIR=/dev/null git diff --no-index --ignore-cr-at-eol --"
1731         ;;
1732 *CYGWIN*)
1733         test_set_prereq POSIXPERM
1734         test_set_prereq EXECKEEPSPID
1735         test_set_prereq CYGWIN
1736         test_set_prereq SED_STRIPS_CR
1737         test_set_prereq GREP_STRIPS_CR
1738         test_set_prereq WINDOWS
1739         ;;
1740 *)
1741         test_set_prereq POSIXPERM
1742         test_set_prereq BSLASHPSPEC
1743         test_set_prereq EXECKEEPSPID
1744         ;;
1745 esac
1746
1747 # Detect arches where a few things don't work
1748 uname_m=$(uname -m)
1749 case $uname_m in
1750 parisc* | hppa*)
1751         test_set_prereq HPPA
1752         ;;
1753 esac
1754
1755 case "$GIT_DEFAULT_REF_FORMAT" in
1756 files)
1757         test_set_prereq REFFILES;;
1758 reftable)
1759         test_set_prereq REFTABLE;;
1760 *)
1761         echo 2>&1 "error: unknown ref format $GIT_DEFAULT_REF_FORMAT"
1762         exit 1
1763         ;;
1764 esac
1765
1766 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1767 test -z "$NO_CURL" && test_set_prereq LIBCURL
1768 test -z "$NO_PERL" && test_set_prereq PERL
1769 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1770 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1771 test -n "$USE_LIBPCRE2" && test_set_prereq PCRE
1772 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1773 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1774 test -n "$SANITIZE_LEAK" && test_set_prereq SANITIZE_LEAK
1775 test -n "$GIT_VALGRIND_ENABLED" && test_set_prereq VALGRIND
1776
1777 if test -z "$GIT_TEST_CHECK_CACHE_TREE"
1778 then
1779         GIT_TEST_CHECK_CACHE_TREE=true
1780         export GIT_TEST_CHECK_CACHE_TREE
1781 fi
1782
1783 test_lazy_prereq PIPE '
1784         # test whether the filesystem supports FIFOs
1785         test_have_prereq !MINGW,!CYGWIN &&
1786         rm -f testfifo && mkfifo testfifo
1787 '
1788
1789 test_lazy_prereq SYMLINKS '
1790         # test whether the filesystem supports symbolic links
1791         ln -s x y && test -h y
1792 '
1793
1794 test_lazy_prereq SYMLINKS_WINDOWS '
1795         # test whether symbolic links are enabled on Windows
1796         test_have_prereq MINGW &&
1797         cmd //c "mklink y x" &> /dev/null && test -h y
1798 '
1799
1800 test_lazy_prereq FILEMODE '
1801         test "$(git config --bool core.filemode)" = true
1802 '
1803
1804 test_lazy_prereq CASE_INSENSITIVE_FS '
1805         echo good >CamelCase &&
1806         echo bad >camelcase &&
1807         test "$(cat CamelCase)" != good
1808 '
1809
1810 test_lazy_prereq FUNNYNAMES '
1811         test_have_prereq !MINGW &&
1812         touch -- \
1813                 "FUNNYNAMES tab embedded" \
1814                 "FUNNYNAMES \"quote embedded\"" \
1815                 "FUNNYNAMES newline
1816 embedded" 2>/dev/null &&
1817         rm -- \
1818                 "FUNNYNAMES tab embedded" \
1819                 "FUNNYNAMES \"quote embedded\"" \
1820                 "FUNNYNAMES newline
1821 embedded" 2>/dev/null
1822 '
1823
1824 test_lazy_prereq UTF8_NFD_TO_NFC '
1825         # check whether FS converts nfd unicode to nfc
1826         auml=$(printf "\303\244")
1827         aumlcdiar=$(printf "\141\314\210")
1828         >"$auml" &&
1829         test -f "$aumlcdiar"
1830 '
1831
1832 test_lazy_prereq AUTOIDENT '
1833         sane_unset GIT_AUTHOR_NAME &&
1834         sane_unset GIT_AUTHOR_EMAIL &&
1835         git var GIT_AUTHOR_IDENT
1836 '
1837
1838 test_lazy_prereq EXPENSIVE '
1839         test -n "$GIT_TEST_LONG"
1840 '
1841
1842 test_lazy_prereq EXPENSIVE_ON_WINDOWS '
1843         test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
1844 '
1845
1846 test_lazy_prereq USR_BIN_TIME '
1847         test -x /usr/bin/time
1848 '
1849
1850 test_lazy_prereq NOT_ROOT '
1851         uid=$(id -u) &&
1852         test "$uid" != 0
1853 '
1854
1855 test_lazy_prereq JGIT '
1856         jgit --version
1857 '
1858
1859 # SANITY is about "can you correctly predict what the filesystem would
1860 # do by only looking at the permission bits of the files and
1861 # directories?"  A typical example of !SANITY is running the test
1862 # suite as root, where a test may expect "chmod -r file && cat file"
1863 # to fail because file is supposed to be unreadable after a successful
1864 # chmod.  In an environment (i.e. combination of what filesystem is
1865 # being used and who is running the tests) that lacks SANITY, you may
1866 # be able to delete or create a file when the containing directory
1867 # doesn't have write permissions, or access a file even if the
1868 # containing directory doesn't have read or execute permissions.
1869
1870 test_lazy_prereq SANITY '
1871         mkdir SANETESTD.1 SANETESTD.2 &&
1872
1873         chmod +w SANETESTD.1 SANETESTD.2 &&
1874         >SANETESTD.1/x 2>SANETESTD.2/x &&
1875         chmod -w SANETESTD.1 &&
1876         chmod -r SANETESTD.1/x &&
1877         chmod -rx SANETESTD.2 ||
1878         BUG "cannot prepare SANETESTD"
1879
1880         ! test -r SANETESTD.1/x &&
1881         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1882         status=$?
1883
1884         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1885         rm -rf SANETESTD.1 SANETESTD.2 ||
1886         BUG "cannot clean SANETESTD"
1887         return $status
1888 '
1889
1890 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1891 GIT_UNZIP=${GIT_UNZIP:-unzip}
1892 test_lazy_prereq UNZIP '
1893         "$GIT_UNZIP" -v
1894         test $? -ne 127
1895 '
1896
1897 run_with_limited_cmdline () {
1898         (ulimit -s 128 && "$@")
1899 }
1900
1901 test_lazy_prereq CMDLINE_LIMIT '
1902         test_have_prereq !HPPA,!MINGW,!CYGWIN &&
1903         run_with_limited_cmdline true
1904 '
1905
1906 run_with_limited_stack () {
1907         (ulimit -s 128 && "$@")
1908 }
1909
1910 test_lazy_prereq ULIMIT_STACK_SIZE '
1911         test_have_prereq !HPPA,!MINGW,!CYGWIN &&
1912         run_with_limited_stack true
1913 '
1914
1915 run_with_limited_open_files () {
1916         (ulimit -n 32 && "$@")
1917 }
1918
1919 test_lazy_prereq ULIMIT_FILE_DESCRIPTORS '
1920         test_have_prereq !MINGW,!CYGWIN &&
1921         run_with_limited_open_files true
1922 '
1923
1924 build_option () {
1925         git version --build-options |
1926         sed -ne "s/^$1: //p"
1927 }
1928
1929 test_lazy_prereq SIZE_T_IS_64BIT '
1930         test 8 -eq "$(build_option sizeof-size_t)"
1931 '
1932
1933 test_lazy_prereq LONG_IS_64BIT '
1934         test 8 -le "$(build_option sizeof-long)"
1935 '
1936
1937 test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
1938 test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
1939
1940 test_lazy_prereq CURL '
1941         curl --version
1942 '
1943
1944 # SHA1 is a test if the hash algorithm in use is SHA-1.  This is both for tests
1945 # which will not work with other hash algorithms and tests that work but don't
1946 # test anything meaningful (e.g. special values which cause short collisions).
1947 test_lazy_prereq SHA1 '
1948         case "$GIT_DEFAULT_HASH" in
1949         sha1) true ;;
1950         "") test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 ;;
1951         *) false ;;
1952         esac
1953 '
1954
1955 test_lazy_prereq DEFAULT_REPO_FORMAT '
1956         test_have_prereq SHA1,REFFILES
1957 '
1958
1959 # Ensure that no test accidentally triggers a Git command
1960 # that runs the actual maintenance scheduler, affecting a user's
1961 # system permanently.
1962 # Tests that verify the scheduler integration must set this locally
1963 # to avoid errors.
1964 GIT_TEST_MAINT_SCHEDULER="none:exit 1"
1965
1966 # Does this platform support `git fsmonitor--daemon`
1967 #
1968 test_lazy_prereq FSMONITOR_DAEMON '
1969         git version --build-options >output &&
1970         grep "feature: fsmonitor--daemon" output
1971 '