git.oblomov.eu Git - git/blob - 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 "$TEST_DIRECTORY"
  21 then
  22         # We allow tests to override this, in case they want to run tests
  23         # outside of t/, e.g. for running tests on the test library
  24         # itself.
  25         TEST_DIRECTORY=$(pwd)
  26 else
  27         # ensure that TEST_DIRECTORY is an absolute path so that it
  28         # is valid even if the current working directory is changed
  29         TEST_DIRECTORY=$(cd "$TEST_DIRECTORY" && pwd) || exit 1
  30 fi
  31 if test -z "$TEST_OUTPUT_DIRECTORY"
  32 then
  33         # Similarly, override this to store the test-results subdir
  34         # elsewhere
  35         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
  36 fi
  37 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
  38
  39 # If we were built with ASAN, it may complain about leaks
  40 # of program-lifetime variables. Disable it by default to lower
  41 # the noise level. This needs to happen at the start of the script,
  42 # before we even do our "did we build git yet" check (since we don't
  43 # want that one to complain to stderr).
  44 : ${ASAN_OPTIONS=detect_leaks=0:abort_on_error=1}
  45 export ASAN_OPTIONS
  46
  47 # If LSAN is in effect we _do_ want leak checking, but we still
  48 # want to abort so that we notice the problems.
  49 : ${LSAN_OPTIONS=abort_on_error=1}
  50 export LSAN_OPTIONS
  51
  52 if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  53 then
  54         echo >&2 'error: GIT-BUILD-OPTIONS missing (has Git been built?).'
  55         exit 1
  56 fi
  57 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  58 export PERL_PATH SHELL_PATH
  59
  60 # Disallow the use of abbreviated options in the test suite by default
  61 if test -z "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS}"
  62 then
  63         GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
  64         export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
  65 fi
  66
  67 ################################################################
  68 # It appears that people try to run tests without building...
  69 "${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
  70 if test $? != 1
  71 then
  72         if test -n "$GIT_TEST_INSTALLED"
  73         then
  74                 echo >&2 "error: there is no working Git at '$GIT_TEST_INSTALLED'"
  75         else
  76                 echo >&2 'error: you do not seem to have built git yet.'
  77         fi
  78         exit 1
  79 fi
  80
  81 # Parse options while taking care to leave $@ intact, so we will still
  82 # have all the original command line options when executing the test
  83 # script again for '--tee' and '--verbose-log' below.
  84 store_arg_to=
  85 prev_opt=
  86 for opt
  87 do
  88         if test -n "$store_arg_to"
  89         then
  90                 eval $store_arg_to=\$opt
  91                 store_arg_to=
  92                 prev_opt=
  93                 continue
  94         fi
  95
  96         case "$opt" in
  97         -d|--d|--de|--deb|--debu|--debug)
  98                 debug=t ;;
  99         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 100                 immediate=t ;;
 101         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 102                 GIT_TEST_LONG=t; export GIT_TEST_LONG ;;
 103         -r)
 104                 store_arg_to=run_list
 105                 ;;
 106         --run=*)
 107                 run_list=${opt#--*=} ;;
 108         -h|--h|--he|--hel|--help)
 109                 help=t ;;
 110         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 111                 verbose=t ;;
 112         --verbose-only=*)
 113                 verbose_only=${opt#--*=}
 114                 ;;
 115         -q|--q|--qu|--qui|--quie|--quiet)
 116                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 117                 # passed without the ok/not ok details is always an error.
 118                 test -z "$HARNESS_ACTIVE" && quiet=t ;;
 119         --with-dashes)
 120                 with_dashes=t ;;
 121         --no-bin-wrappers)
 122                 no_bin_wrappers=t ;;
 123         --no-color)
 124                 color= ;;
 125         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 126                 valgrind=memcheck
 127                 tee=t
 128                 ;;
 129         --valgrind=*)
 130                 valgrind=${opt#--*=}
 131                 tee=t
 132                 ;;
 133         --valgrind-only=*)
 134                 valgrind_only=${opt#--*=}
 135                 tee=t
 136                 ;;
 137         --tee)
 138                 tee=t ;;
 139         --root=*)
 140                 root=${opt#--*=} ;;
 141         --chain-lint)
 142                 GIT_TEST_CHAIN_LINT=1 ;;
 143         --no-chain-lint)
 144                 GIT_TEST_CHAIN_LINT=0 ;;
 145         -x)
 146                 trace=t ;;
 147         -V|--verbose-log)
 148                 verbose_log=t
 149                 tee=t
 150                 ;;
 151         --write-junit-xml)
 152                 write_junit_xml=t
 153                 ;;
 154         --stress)
 155                 stress=t ;;
 156         --stress=*)
 157                 echo "error: --stress does not accept an argument: '$opt'" >&2
 158                 echo "did you mean --stress-jobs=${opt#*=} or --stress-limit=${opt#*=}?" >&2
 159                 exit 1
 160                 ;;
 161         --stress-jobs=*)
 162                 stress=t;
 163                 stress=${opt#--*=}
 164                 case "$stress" in
 165                 *[!0-9]*|0*|"")
 166                         echo "error: --stress-jobs=<N> requires the number of jobs to run" >&2
 167                         exit 1
 168                         ;;
 169                 *)      # Good.
 170                         ;;
 171                 esac
 172                 ;;
 173         --stress-limit=*)
 174                 stress=t;
 175                 stress_limit=${opt#--*=}
 176                 case "$stress_limit" in
 177                 *[!0-9]*|0*|"")
 178                         echo "error: --stress-limit=<N> requires the number of repetitions" >&2
 179                         exit 1
 180                         ;;
 181                 *)      # Good.
 182                         ;;
 183                 esac
 184                 ;;
 185         *)
 186                 echo "error: unknown test option '$opt'" >&2; exit 1 ;;
 187         esac
 188
 189         prev_opt=$opt
 190 done
 191 if test -n "$store_arg_to"
 192 then
 193         echo "error: $prev_opt requires an argument" >&2
 194         exit 1
 195 fi
 196
 197 if test -n "$valgrind_only"
 198 then
 199         test -z "$valgrind" && valgrind=memcheck
 200         test -z "$verbose" && verbose_only="$valgrind_only"
 201 elif test -n "$valgrind"
 202 then
 203         test -z "$verbose_log" && verbose=t
 204 fi
 205
 206 if test -n "$stress"
 207 then
 208         verbose=t
 209         trace=t
 210         immediate=t
 211 fi
 212
 213 TEST_STRESS_JOB_SFX="${GIT_TEST_STRESS_JOB_NR:+.stress-$GIT_TEST_STRESS_JOB_NR}"
 214 TEST_NAME="$(basename "$0" .sh)"
 215 TEST_RESULTS_DIR="$TEST_OUTPUT_DIRECTORY/test-results"
 216 TEST_RESULTS_BASE="$TEST_RESULTS_DIR/$TEST_NAME$TEST_STRESS_JOB_SFX"
 217 TRASH_DIRECTORY="trash directory.$TEST_NAME$TEST_STRESS_JOB_SFX"
 218 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 219 case "$TRASH_DIRECTORY" in
 220 /*) ;; # absolute path is good
 221  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 222 esac
 223
 224 # If --stress was passed, run this test repeatedly in several parallel loops.
 225 if test "$GIT_TEST_STRESS_STARTED" = "done"
 226 then
 227         : # Don't stress test again.
 228 elif test -n "$stress"
 229 then
 230         if test "$stress" != t
 231         then
 232                 job_count=$stress
 233         elif test -n "$GIT_TEST_STRESS_LOAD"
 234         then
 235                 job_count="$GIT_TEST_STRESS_LOAD"
 236         elif job_count=$(getconf _NPROCESSORS_ONLN 2>/dev/null) &&
 237              test -n "$job_count"
 238         then
 239                 job_count=$((2 * $job_count))
 240         else
 241                 job_count=8
 242         fi
 243
 244         mkdir -p "$TEST_RESULTS_DIR"
 245         stressfail="$TEST_RESULTS_BASE.stress-failed"
 246         rm -f "$stressfail"
 247
 248         stress_exit=0
 249         trap '
 250                 kill $job_pids 2>/dev/null
 251                 wait
 252                 stress_exit=1
 253         ' TERM INT HUP
 254
 255         job_pids=
 256         job_nr=0
 257         while test $job_nr -lt "$job_count"
 258         do
 259                 (
 260                         GIT_TEST_STRESS_STARTED=done
 261                         GIT_TEST_STRESS_JOB_NR=$job_nr
 262                         export GIT_TEST_STRESS_STARTED GIT_TEST_STRESS_JOB_NR
 263
 264                         trap '
 265                                 kill $test_pid 2>/dev/null
 266                                 wait
 267                                 exit 1
 268                         ' TERM INT
 269
 270                         cnt=1
 271                         while ! test -e "$stressfail" &&
 272                               { test -z "$stress_limit" ||
 273                                 test $cnt -le $stress_limit ; }
 274                         do
 275                                 $TEST_SHELL_PATH "$0" "$@" >"$TEST_RESULTS_BASE.stress-$job_nr.out" 2>&1 &
 276                                 test_pid=$!
 277
 278                                 if wait $test_pid
 279                                 then
 280                                         printf "OK   %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 281                                 else
 282                                         echo $GIT_TEST_STRESS_JOB_NR >>"$stressfail"
 283                                         printf "FAIL %2d.%d\n" $GIT_TEST_STRESS_JOB_NR $cnt
 284                                 fi
 285                                 cnt=$(($cnt + 1))
 286                         done
 287                 ) &
 288                 job_pids="$job_pids $!"
 289                 job_nr=$(($job_nr + 1))
 290         done
 291
 292         wait
 293
 294         if test -f "$stressfail"
 295         then
 296                 stress_exit=1
 297                 echo "Log(s) of failed test run(s):"
 298                 for failed_job_nr in $(sort -n "$stressfail")
 299                 do
 300                         echo "Contents of '$TEST_RESULTS_BASE.stress-$failed_job_nr.out':"
 301                         cat "$TEST_RESULTS_BASE.stress-$failed_job_nr.out"
 302                 done
 303                 rm -rf "$TRASH_DIRECTORY.stress-failed"
 304                 # Move the last one.
 305                 mv "$TRASH_DIRECTORY.stress-$failed_job_nr" "$TRASH_DIRECTORY.stress-failed"
 306         fi
 307
 308         exit $stress_exit
 309 fi
 310
 311 # if --tee was passed, write the output not only to the terminal, but
 312 # additionally to the file test-results/$BASENAME.out, too.
 313 if test "$GIT_TEST_TEE_STARTED" = "done"
 314 then
 315         : # do not redirect again
 316 elif test -n "$tee"
 317 then
 318         mkdir -p "$TEST_RESULTS_DIR"
 319
 320         # Make this filename available to the sub-process in case it is using
 321         # --verbose-log.
 322         GIT_TEST_TEE_OUTPUT_FILE=$TEST_RESULTS_BASE.out
 323         export GIT_TEST_TEE_OUTPUT_FILE
 324
 325         # Truncate before calling "tee -a" to get rid of the results
 326         # from any previous runs.
 327         >"$GIT_TEST_TEE_OUTPUT_FILE"
 328
 329         (GIT_TEST_TEE_STARTED=done ${TEST_SHELL_PATH} "$0" "$@" 2>&1;
 330          echo $? >"$TEST_RESULTS_BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
 331         test "$(cat "$TEST_RESULTS_BASE.exit")" = 0
 332         exit
 333 fi
 334
 335 if test -n "$trace" && test -n "$test_untraceable"
 336 then
 337         # '-x' tracing requested, but this test script can't be reliably
 338         # traced, unless it is run with a Bash version supporting
 339         # BASH_XTRACEFD (introduced in Bash v4.1).
 340         #
 341         # Perform this version check _after_ the test script was
 342         # potentially re-executed with $TEST_SHELL_PATH for '--tee' or
 343         # '--verbose-log', so the right shell is checked and the
 344         # warning is issued only once.
 345         if test -n "$BASH_VERSION" && eval '
 346              test ${BASH_VERSINFO[0]} -gt 4 || {
 347                test ${BASH_VERSINFO[0]} -eq 4 &&
 348                test ${BASH_VERSINFO[1]} -ge 1
 349              }
 350            '
 351         then
 352                 : Executed by a Bash version supporting BASH_XTRACEFD.  Good.
 353         else
 354                 echo >&2 "warning: ignoring -x; '$0' is untraceable without BASH_XTRACEFD"
 355                 trace=
 356         fi
 357 fi
 358 if test -n "$trace" && test -z "$verbose_log"
 359 then
 360         verbose=t
 361 fi
 362
 363 # For repeatability, reset the environment to known value.
 364 # TERM is sanitized below, after saving color control sequences.
 365 LANG=C
 366 LC_ALL=C
 367 PAGER=cat
 368 TZ=UTC
 369 export LANG LC_ALL PAGER TZ
 370 EDITOR=:
 371
 372 # GIT_TEST_GETTEXT_POISON should not influence git commands executed
 373 # during initialization of test-lib and the test repo. Back it up,
 374 # unset and then restore after initialization is finished.
 375 if test -n "$GIT_TEST_GETTEXT_POISON"
 376 then
 377         GIT_TEST_GETTEXT_POISON_ORIG=$GIT_TEST_GETTEXT_POISON
 378         unset GIT_TEST_GETTEXT_POISON
 379 fi
 380
 381 # A call to "unset" with no arguments causes at least Solaris 10
 382 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
 383 # deriving from the command substitution clustered with the other
 384 # ones.
 385 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
 386         my @env = keys %ENV;
 387         my $ok = join("|", qw(
 388                 TRACE
 389                 DEBUG
 390                 TEST
 391                 .*_TEST
 392                 PROVE
 393                 VALGRIND
 394                 UNZIP
 395                 PERF_
 396                 CURL_VERBOSE
 397                 TRACE_CURL
 398         ));
 399         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 400         print join("\n", @vars);
 401 ')
 402 unset XDG_CACHE_HOME
 403 unset XDG_CONFIG_HOME
 404 unset GITPERLLIB
 405 GIT_AUTHOR_EMAIL=author@example.com
 406 GIT_AUTHOR_NAME='A U Thor'
 407 GIT_COMMITTER_EMAIL=committer@example.com
 408 GIT_COMMITTER_NAME='C O Mitter'
 409 GIT_MERGE_VERBOSITY=5
 410 GIT_MERGE_AUTOEDIT=no
 411 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 412 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 413 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 414 export EDITOR
 415
 416 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 417 GIT_TRACE_BARE=1
 418 export GIT_TRACE_BARE
 419
 420 check_var_migration () {
 421         # the warnings and hints given from this helper depends
 422         # on end-user settings, which will disrupt the self-test
 423         # done on the test framework itself.
 424         case "$GIT_TEST_FRAMEWORK_SELFTEST" in
 425         t)      return ;;
 426         esac
 427
 428         old_name=$1 new_name=$2
 429         eval "old_isset=\${${old_name}:+isset}"
 430         eval "new_isset=\${${new_name}:+isset}"
 431
 432         case "$old_isset,$new_isset" in
 433         isset,)
 434                 echo >&2 "warning: $old_name is now $new_name"
 435                 echo >&2 "hint: set $new_name too during the transition period"
 436                 eval "$new_name=\$$old_name"
 437                 ;;
 438         isset,isset)
 439                 # do this later
 440                 # echo >&2 "warning: $old_name is now $new_name"
 441                 # echo >&2 "hint: remove $old_name"
 442                 ;;
 443         esac
 444 }
 445
 446 check_var_migration GIT_FSMONITOR_TEST GIT_TEST_FSMONITOR
 447 check_var_migration TEST_GIT_INDEX_VERSION GIT_TEST_INDEX_VERSION
 448 check_var_migration GIT_FORCE_PRELOAD_TEST GIT_TEST_PRELOAD_INDEX
 449
 450 # Use specific version of the index file format
 451 if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
 452 then
 453         GIT_INDEX_VERSION="$GIT_TEST_INDEX_VERSION"
 454         export GIT_INDEX_VERSION
 455 fi
 456
 457 # Add libc MALLOC and MALLOC_PERTURB test
 458 # only if we are not executing the test with valgrind
 459 if test -n "$valgrind" ||
 460    test -n "$TEST_NO_MALLOC_CHECK"
 461 then
 462         setup_malloc_check () {
 463                 : nothing
 464         }
 465         teardown_malloc_check () {
 466                 : nothing
 467         }
 468 else
 469         setup_malloc_check () {
 470                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 471                 export MALLOC_CHECK_ MALLOC_PERTURB_
 472         }
 473         teardown_malloc_check () {
 474                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 475         }
 476 fi
 477
 478 # Protect ourselves from common misconfiguration to export
 479 # CDPATH into the environment
 480 unset CDPATH
 481
 482 unset GREP_OPTIONS
 483 unset UNZIP
 484
 485 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 486 1|2|true)
 487         GIT_TRACE=4
 488         ;;
 489 esac
 490
 491 # Convenience
 492 #
 493 # A regexp to match 5, 35 and 40 hexdigits
 494 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 495 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 496 _x40="$_x35$_x05"
 497
 498 # Zero SHA-1
 499 _z40=0000000000000000000000000000000000000000
 500
 501 OID_REGEX="$_x40"
 502 ZERO_OID=$_z40
 503 EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
 504 EMPTY_BLOB=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
 505
 506 # Line feed
 507 LF='
 508 '
 509
 510 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 511 # when case-folding filenames
 512 u200c=$(printf '\342\200\214')
 513
 514 export _x05 _x35 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB ZERO_OID OID_REGEX
 515
 516 # Each test should start with something like this, after copyright notices:
 517 #
 518 # test_description='Description of this test...
 519 # This test checks if command xyzzy does the right thing...
 520 # '
 521 # . ./test-lib.sh
 522 test "x$TERM" != "xdumb" && (
 523                 test -t 1 &&
 524                 tput bold >/dev/null 2>&1 &&
 525                 tput setaf 1 >/dev/null 2>&1 &&
 526                 tput sgr0 >/dev/null 2>&1
 527         ) &&
 528         color=t
 529
 530 if test -n "$color"
 531 then
 532         # Save the color control sequences now rather than run tput
 533         # each time say_color() is called.  This is done for two
 534         # reasons:
 535         #   * TERM will be changed to dumb
 536         #   * HOME will be changed to a temporary directory and tput
 537         #     might need to read ~/.terminfo from the original HOME
 538         #     directory to get the control sequences
 539         # Note:  This approach assumes the control sequences don't end
 540         # in a newline for any terminal of interest (command
 541         # substitutions strip trailing newlines).  Given that most
 542         # (all?) terminals in common use are related to ECMA-48, this
 543         # shouldn't be a problem.
 544         say_color_error=$(tput bold; tput setaf 1) # bold red
 545         say_color_skip=$(tput setaf 4) # blue
 546         say_color_warn=$(tput setaf 3) # brown/yellow
 547         say_color_pass=$(tput setaf 2) # green
 548         say_color_info=$(tput setaf 6) # cyan
 549         say_color_reset=$(tput sgr0)
 550         say_color_="" # no formatting for normal text
 551         say_color () {
 552                 test -z "$1" && test -n "$quiet" && return
 553                 eval "say_color_color=\$say_color_$1"
 554                 shift
 555                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 556         }
 557 else
 558         say_color() {
 559                 test -z "$1" && test -n "$quiet" && return
 560                 shift
 561                 printf "%s\n" "$*"
 562         }
 563 fi
 564
 565 TERM=dumb
 566 export TERM
 567
 568 error () {
 569         say_color error "error: $*"
 570         GIT_EXIT_OK=t
 571         exit 1
 572 }
 573
 574 BUG () {
 575         error >&7 "bug in the test script: $*"
 576 }
 577
 578 say () {
 579         say_color info "$*"
 580 }
 581
 582 if test -n "$HARNESS_ACTIVE"
 583 then
 584         if test "$verbose" = t || test -n "$verbose_only"
 585         then
 586                 printf 'Bail out! %s\n' \
 587                  'verbose mode forbidden under TAP harness; try --verbose-log'
 588                 exit 1
 589         fi
 590 fi
 591
 592 test "${test_description}" != "" ||
 593 error "Test script did not set test_description."
 594
 595 if test "$help" = "t"
 596 then
 597         printf '%s\n' "$test_description"
 598         exit 0
 599 fi
 600
 601 exec 5>&1
 602 exec 6<&0
 603 exec 7>&2
 604 if test "$verbose_log" = "t"
 605 then
 606         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 607 elif test "$verbose" = "t"
 608 then
 609         exec 4>&2 3>&1
 610 else
 611         exec 4>/dev/null 3>/dev/null
 612 fi
 613
 614 # Send any "-x" output directly to stderr to avoid polluting tests
 615 # which capture stderr. We can do this unconditionally since it
 616 # has no effect if tracing isn't turned on.
 617 #
 618 # Note that this sets up the trace fd as soon as we assign the variable, so it
 619 # must come after the creation of descriptor 4 above. Likewise, we must never
 620 # unset this, as it has the side effect of closing descriptor 4, which we
 621 # use to show verbose tests to the user.
 622 #
 623 # Note also that we don't need or want to export it. The tracing is local to
 624 # this shell, and we would not want to influence any shells we exec.
 625 BASH_XTRACEFD=4
 626
 627 test_failure=0
 628 test_count=0
 629 test_fixed=0
 630 test_broken=0
 631 test_success=0
 632
 633 test_external_has_tap=0
 634
 635 die () {
 636         code=$?
 637         if test -n "$GIT_EXIT_OK"
 638         then
 639                 exit $code
 640         else
 641                 echo >&5 "FATAL: Unexpected exit with code $code"
 642                 exit 1
 643         fi
 644 }
 645
 646 GIT_EXIT_OK=
 647 trap 'die' EXIT
 648 trap 'exit $?' INT TERM HUP
 649
 650 # The user-facing functions are loaded from a separate file so that
 651 # test_perf subshells can have them too
 652 . "$TEST_DIRECTORY/test-lib-functions.sh"
 653
 654 # You are not expected to call test_ok_ and test_failure_ directly, use
 655 # the test_expect_* functions instead.
 656
 657 test_ok_ () {
 658         if test -n "$write_junit_xml"
 659         then
 660                 write_junit_xml_testcase "$*"
 661         fi
 662         test_success=$(($test_success + 1))
 663         say_color "" "ok $test_count - $@"
 664 }
 665
 666 test_failure_ () {
 667         if test -n "$write_junit_xml"
 668         then
 669                 junit_insert="<failure message=\"not ok $test_count -"
 670                 junit_insert="$junit_insert $(xml_attr_encode "$1")\">"
 671                 junit_insert="$junit_insert $(xml_attr_encode \
 672                         "$(if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
 673                            then
 674                                 test-tool path-utils skip-n-bytes \
 675                                         "$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET
 676                            else
 677                                 printf '%s\n' "$@" | sed 1d
 678                            fi)")"
 679                 junit_insert="$junit_insert</failure>"
 680                 if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
 681                 then
 682                         junit_insert="$junit_insert<system-err>$(xml_attr_encode \
 683                                 "$(cat "$GIT_TEST_TEE_OUTPUT_FILE")")</system-err>"
 684                 fi
 685                 write_junit_xml_testcase "$1" "      $junit_insert"
 686         fi
 687         test_failure=$(($test_failure + 1))
 688         say_color error "not ok $test_count - $1"
 689         shift
 690         printf '%s\n' "$*" | sed -e 's/^/#      /'
 691         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 692 }
 693
 694 test_known_broken_ok_ () {
 695         if test -n "$write_junit_xml"
 696         then
 697                 write_junit_xml_testcase "$* (breakage fixed)"
 698         fi
 699         test_fixed=$(($test_fixed+1))
 700         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 701 }
 702
 703 test_known_broken_failure_ () {
 704         if test -n "$write_junit_xml"
 705         then
 706                 write_junit_xml_testcase "$* (known breakage)"
 707         fi
 708         test_broken=$(($test_broken+1))
 709         say_color warn "not ok $test_count - $@ # TODO known breakage"
 710 }
 711
 712 test_debug () {
 713         test "$debug" = "" || eval "$1"
 714 }
 715
 716 match_pattern_list () {
 717         arg="$1"
 718         shift
 719         test -z "$*" && return 1
 720         for pattern_
 721         do
 722                 case "$arg" in
 723                 $pattern_)
 724                         return 0
 725                 esac
 726         done
 727         return 1
 728 }
 729
 730 match_test_selector_list () {
 731         title="$1"
 732         shift
 733         arg="$1"
 734         shift
 735         test -z "$1" && return 0
 736
 737         # Both commas and whitespace are accepted as separators.
 738         OLDIFS=$IFS
 739         IFS='   ,'
 740         set -- $1
 741         IFS=$OLDIFS
 742
 743         # If the first selector is negative we include by default.
 744         include=
 745         case "$1" in
 746                 !*) include=t ;;
 747         esac
 748
 749         for selector
 750         do
 751                 orig_selector=$selector
 752
 753                 positive=t
 754                 case "$selector" in
 755                         !*)
 756                                 positive=
 757                                 selector=${selector##?}
 758                                 ;;
 759                 esac
 760
 761                 test -z "$selector" && continue
 762
 763                 case "$selector" in
 764                         *-*)
 765                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 766                                 then
 767                                         echo "error: $title: invalid non-numeric in range" \
 768                                                 "start: '$orig_selector'" >&2
 769                                         exit 1
 770                                 fi
 771                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 772                                 then
 773                                         echo "error: $title: invalid non-numeric in range" \
 774                                                 "end: '$orig_selector'" >&2
 775                                         exit 1
 776                                 fi
 777                                 ;;
 778                         *)
 779                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 780                                 then
 781                                         echo "error: $title: invalid non-numeric in test" \
 782                                                 "selector: '$orig_selector'" >&2
 783                                         exit 1
 784                                 fi
 785                 esac
 786
 787                 # Short cut for "obvious" cases
 788                 test -z "$include" && test -z "$positive" && continue
 789                 test -n "$include" && test -n "$positive" && continue
 790
 791                 case "$selector" in
 792                         -*)
 793                                 if test $arg -le ${selector#-}
 794                                 then
 795                                         include=$positive
 796                                 fi
 797                                 ;;
 798                         *-)
 799                                 if test $arg -ge ${selector%-}
 800                                 then
 801                                         include=$positive
 802                                 fi
 803                                 ;;
 804                         *-*)
 805                                 if test ${selector%%-*} -le $arg \
 806                                         && test $arg -le ${selector#*-}
 807                                 then
 808                                         include=$positive
 809                                 fi
 810                                 ;;
 811                         *)
 812                                 if test $arg -eq $selector
 813                                 then
 814                                         include=$positive
 815                                 fi
 816                                 ;;
 817                 esac
 818         done
 819
 820         test -n "$include"
 821 }
 822
 823 maybe_teardown_verbose () {
 824         test -z "$verbose_only" && return
 825         exec 4>/dev/null 3>/dev/null
 826         verbose=
 827 }
 828
 829 last_verbose=t
 830 maybe_setup_verbose () {
 831         test -z "$verbose_only" && return
 832         if match_pattern_list $test_count $verbose_only
 833         then
 834                 exec 4>&2 3>&1
 835                 # Emit a delimiting blank line when going from
 836                 # non-verbose to verbose.  Within verbose mode the
 837                 # delimiter is printed by test_expect_*.  The choice
 838                 # of the initial $last_verbose is such that before
 839                 # test 1, we do not print it.
 840                 test -z "$last_verbose" && echo >&3 ""
 841                 verbose=t
 842         else
 843                 exec 4>/dev/null 3>/dev/null
 844                 verbose=
 845         fi
 846         last_verbose=$verbose
 847 }
 848
 849 maybe_teardown_valgrind () {
 850         test -z "$GIT_VALGRIND" && return
 851         GIT_VALGRIND_ENABLED=
 852 }
 853
 854 maybe_setup_valgrind () {
 855         test -z "$GIT_VALGRIND" && return
 856         if test -z "$valgrind_only"
 857         then
 858                 GIT_VALGRIND_ENABLED=t
 859                 return
 860         fi
 861         GIT_VALGRIND_ENABLED=
 862         if match_pattern_list $test_count $valgrind_only
 863         then
 864                 GIT_VALGRIND_ENABLED=t
 865         fi
 866 }
 867
 868 want_trace () {
 869         test "$trace" = t && {
 870                 test "$verbose" = t || test "$verbose_log" = t
 871         }
 872 }
 873
 874 # This is a separate function because some tests use
 875 # "return" to end a test_expect_success block early
 876 # (and we want to make sure we run any cleanup like
 877 # "set +x").
 878 test_eval_inner_ () {
 879         # Do not add anything extra (including LF) after '$*'
 880         eval "
 881                 want_trace && set -x
 882                 $*"
 883 }
 884
 885 test_eval_ () {
 886         # If "-x" tracing is in effect, then we want to avoid polluting stderr
 887         # with non-test commands. But once in "set -x" mode, we cannot prevent
 888         # the shell from printing the "set +x" to turn it off (nor the saving
 889         # of $? before that). But we can make sure that the output goes to
 890         # /dev/null.
 891         #
 892         # There are a few subtleties here:
 893         #
 894         #   - we have to redirect descriptor 4 in addition to 2, to cover
 895         #     BASH_XTRACEFD
 896         #
 897         #   - the actual eval has to come before the redirection block (since
 898         #     it needs to see descriptor 4 to set up its stderr)
 899         #
 900         #   - likewise, any error message we print must be outside the block to
 901         #     access descriptor 4
 902         #
 903         #   - checking $? has to come immediately after the eval, but it must
 904         #     be _inside_ the block to avoid polluting the "set -x" output
 905         #
 906
 907         test_eval_inner_ "$@" </dev/null >&3 2>&4
 908         {
 909                 test_eval_ret_=$?
 910                 if want_trace
 911                 then
 912                         set +x
 913                 fi
 914         } 2>/dev/null 4>&2
 915
 916         if test "$test_eval_ret_" != 0 && want_trace
 917         then
 918                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 919         fi
 920         return $test_eval_ret_
 921 }
 922
 923 test_run_ () {
 924         test_cleanup=:
 925         expecting_failure=$2
 926
 927         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
 928                 # turn off tracing for this test-eval, as it simply creates
 929                 # confusing noise in the "-x" output
 930                 trace_tmp=$trace
 931                 trace=
 932                 # 117 is magic because it is unlikely to match the exit
 933                 # code of other programs
 934                 if $(printf '%s\n' "$1" | sed -f "$GIT_BUILD_DIR/t/chainlint.sed" | grep -q '?![A-Z][A-Z]*?!') ||
 935                         test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
 936                 then
 937                         BUG "broken &&-chain or run-away HERE-DOC: $1"
 938                 fi
 939                 trace=$trace_tmp
 940         fi
 941
 942         setup_malloc_check
 943         test_eval_ "$1"
 944         eval_ret=$?
 945         teardown_malloc_check
 946
 947         if test -z "$immediate" || test $eval_ret = 0 ||
 948            test -n "$expecting_failure" && test "$test_cleanup" != ":"
 949         then
 950                 setup_malloc_check
 951                 test_eval_ "$test_cleanup"
 952                 teardown_malloc_check
 953         fi
 954         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 955         then
 956                 echo ""
 957         fi
 958         return "$eval_ret"
 959 }
 960
 961 test_start_ () {
 962         test_count=$(($test_count+1))
 963         maybe_setup_verbose
 964         maybe_setup_valgrind
 965         if test -n "$write_junit_xml"
 966         then
 967                 junit_start=$(test-tool date getnanos)
 968         fi
 969 }
 970
 971 test_finish_ () {
 972         echo >&3 ""
 973         maybe_teardown_valgrind
 974         maybe_teardown_verbose
 975         if test -n "$GIT_TEST_TEE_OFFSET"
 976         then
 977                 GIT_TEST_TEE_OFFSET=$(test-tool path-utils file-size \
 978                         "$GIT_TEST_TEE_OUTPUT_FILE")
 979         fi
 980 }
 981
 982 test_skip () {
 983         to_skip=
 984         skipped_reason=
 985         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 986         then
 987                 to_skip=t
 988                 skipped_reason="GIT_SKIP_TESTS"
 989         fi
 990         if test -z "$to_skip" && test -n "$test_prereq" &&
 991            ! test_have_prereq "$test_prereq"
 992         then
 993                 to_skip=t
 994
 995                 of_prereq=
 996                 if test "$missing_prereq" != "$test_prereq"
 997                 then
 998                         of_prereq=" of $test_prereq"
 999                 fi
1000                 skipped_reason="missing $missing_prereq${of_prereq}"
1001         fi
1002         if test -z "$to_skip" && test -n "$run_list" &&
1003                 ! match_test_selector_list '--run' $test_count "$run_list"
1004         then
1005                 to_skip=t
1006                 skipped_reason="--run"
1007         fi
1008
1009         case "$to_skip" in
1010         t)
1011                 if test -n "$write_junit_xml"
1012                 then
1013                         message="$(xml_attr_encode "$skipped_reason")"
1014                         write_junit_xml_testcase "$1" \
1015                                 "      <skipped message=\"$message\" />"
1016                 fi
1017
1018                 say_color skip >&3 "skipping test: $@"
1019                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
1020                 : true
1021                 ;;
1022         *)
1023                 false
1024                 ;;
1025         esac
1026 }
1027
1028 # stub; perf-lib overrides it
1029 test_at_end_hook_ () {
1030         :
1031 }
1032
1033 write_junit_xml () {
1034         case "$1" in
1035         --truncate)
1036                 >"$junit_xml_path"
1037                 junit_have_testcase=
1038                 shift
1039                 ;;
1040         esac
1041         printf '%s\n' "$@" >>"$junit_xml_path"
1042 }
1043
1044 xml_attr_encode () {
1045         printf '%s\n' "$@" | test-tool xml-encode
1046 }
1047
1048 write_junit_xml_testcase () {
1049         junit_attrs="name=\"$(xml_attr_encode "$this_test.$test_count $1")\""
1050         shift
1051         junit_attrs="$junit_attrs classname=\"$this_test\""
1052         junit_attrs="$junit_attrs time=\"$(test-tool \
1053                 date getnanos $junit_start)\""
1054         write_junit_xml "$(printf '%s\n' \
1055                 "    <testcase $junit_attrs>" "$@" "    </testcase>")"
1056         junit_have_testcase=t
1057 }
1058
1059 test_done () {
1060         GIT_EXIT_OK=t
1061
1062         if test -n "$write_junit_xml" && test -n "$junit_xml_path"
1063         then
1064                 test -n "$junit_have_testcase" || {
1065                         junit_start=$(test-tool date getnanos)
1066                         write_junit_xml_testcase "all tests skipped"
1067                 }
1068
1069                 # adjust the overall time
1070                 junit_time=$(test-tool date getnanos $junit_suite_start)
1071                 sed "s/<testsuite [^>]*/& time=\"$junit_time\"/" \
1072                         <"$junit_xml_path" >"$junit_xml_path.new"
1073                 mv "$junit_xml_path.new" "$junit_xml_path"
1074
1075                 write_junit_xml "  </testsuite>" "</testsuites>"
1076         fi
1077
1078         if test -z "$HARNESS_ACTIVE"
1079         then
1080                 mkdir -p "$TEST_RESULTS_DIR"
1081
1082                 cat >"$TEST_RESULTS_BASE.counts" <<-EOF
1083                 total $test_count
1084                 success $test_success
1085                 fixed $test_fixed
1086                 broken $test_broken
1087                 failed $test_failure
1088
1089                 EOF
1090         fi
1091
1092         if test "$test_fixed" != 0
1093         then
1094                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
1095         fi
1096         if test "$test_broken" != 0
1097         then
1098                 say_color warn "# still have $test_broken known breakage(s)"
1099         fi
1100         if test "$test_broken" != 0 || test "$test_fixed" != 0
1101         then
1102                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
1103                 msg="remaining $test_remaining test(s)"
1104         else
1105                 test_remaining=$test_count
1106                 msg="$test_count test(s)"
1107         fi
1108         case "$test_failure" in
1109         0)
1110                 if test $test_external_has_tap -eq 0
1111                 then
1112                         if test $test_remaining -gt 0
1113                         then
1114                                 say_color pass "# passed all $msg"
1115                         fi
1116
1117                         # Maybe print SKIP message
1118                         test -z "$skip_all" || skip_all="# SKIP $skip_all"
1119                         case "$test_count" in
1120                         0)
1121                                 say "1..$test_count${skip_all:+ $skip_all}"
1122                                 ;;
1123                         *)
1124                                 test -z "$skip_all" ||
1125                                 say_color warn "$skip_all"
1126                                 say "1..$test_count"
1127                                 ;;
1128                         esac
1129                 fi
1130
1131                 if test -z "$debug"
1132                 then
1133                         test -d "$TRASH_DIRECTORY" ||
1134                         error "Tests passed but trash directory already removed before test cleanup; aborting"
1135
1136                         cd "$TRASH_DIRECTORY/.." &&
1137                         rm -fr "$TRASH_DIRECTORY" || {
1138                                 # try again in a bit
1139                                 sleep 5;
1140                                 rm -fr "$TRASH_DIRECTORY"
1141                         } ||
1142                         error "Tests passed but test cleanup failed; aborting"
1143                 fi
1144                 test_at_end_hook_
1145
1146                 exit 0 ;;
1147
1148         *)
1149                 if test $test_external_has_tap -eq 0
1150                 then
1151                         say_color error "# failed $test_failure among $msg"
1152                         say "1..$test_count"
1153                 fi
1154
1155                 exit 1 ;;
1156
1157         esac
1158 }
1159
1160 if test -n "$valgrind"
1161 then
1162         make_symlink () {
1163                 test -h "$2" &&
1164                 test "$1" = "$(readlink "$2")" || {
1165                         # be super paranoid
1166                         if mkdir "$2".lock
1167                         then
1168                                 rm -f "$2" &&
1169                                 ln -s "$1" "$2" &&
1170                                 rm -r "$2".lock
1171                         else
1172                                 while test -d "$2".lock
1173                                 do
1174                                         say "Waiting for lock on $2."
1175                                         sleep 1
1176                                 done
1177                         fi
1178                 }
1179         }
1180
1181         make_valgrind_symlink () {
1182                 # handle only executables, unless they are shell libraries that
1183                 # need to be in the exec-path.
1184                 test -x "$1" ||
1185                 test "# " = "$(test_copy_bytes 2 <"$1")" ||
1186                 return;
1187
1188                 base=$(basename "$1")
1189                 case "$base" in
1190                 test-*)
1191                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
1192                         ;;
1193                 *)
1194                         symlink_target="$GIT_BUILD_DIR/$base"
1195                         ;;
1196                 esac
1197                 # do not override scripts
1198                 if test -x "$symlink_target" &&
1199                     test ! -d "$symlink_target" &&
1200                     test "#!" != "$(test_copy_bytes 2 <"$symlink_target")"
1201                 then
1202                         symlink_target=../valgrind.sh
1203                 fi
1204                 case "$base" in
1205                 *.sh|*.perl)
1206                         symlink_target=../unprocessed-script
1207                 esac
1208                 # create the link, or replace it if it is out of date
1209                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
1210         }
1211
1212         # override all git executables in TEST_DIRECTORY/..
1213         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
1214         mkdir -p "$GIT_VALGRIND"/bin
1215         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
1216         do
1217                 make_valgrind_symlink $file
1218         done
1219         # special-case the mergetools loadables
1220         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
1221         OLDIFS=$IFS
1222         IFS=:
1223         for path in $PATH
1224         do
1225                 ls "$path"/git-* 2> /dev/null |
1226                 while read file
1227                 do
1228                         make_valgrind_symlink "$file"
1229                 done
1230         done
1231         IFS=$OLDIFS
1232         PATH=$GIT_VALGRIND/bin:$PATH
1233         GIT_EXEC_PATH=$GIT_VALGRIND/bin
1234         export GIT_VALGRIND
1235         GIT_VALGRIND_MODE="$valgrind"
1236         export GIT_VALGRIND_MODE
1237         GIT_VALGRIND_ENABLED=t
1238         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
1239         export GIT_VALGRIND_ENABLED
1240 elif test -n "$GIT_TEST_INSTALLED"
1241 then
1242         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
1243         error "Cannot run git from $GIT_TEST_INSTALLED."
1244         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$PATH
1245         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
1246 else # normal case, use ../bin-wrappers only unless $with_dashes:
1247         if test -n "$no_bin_wrappers"
1248         then
1249                 with_dashes=t
1250         else
1251                 git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
1252                 if ! test -x "$git_bin_dir/git"
1253                 then
1254                         if test -z "$with_dashes"
1255                         then
1256                                 say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
1257                         fi
1258                         with_dashes=t
1259                 fi
1260                 PATH="$git_bin_dir:$PATH"
1261         fi
1262         GIT_EXEC_PATH=$GIT_BUILD_DIR
1263         if test -n "$with_dashes"
1264         then
1265                 PATH="$GIT_BUILD_DIR:$GIT_BUILD_DIR/t/helper:$PATH"
1266         fi
1267 fi
1268 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
1269 GIT_CONFIG_NOSYSTEM=1
1270 GIT_ATTR_NOSYSTEM=1
1271 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
1272
1273 if test -z "$GIT_TEST_CMP"
1274 then
1275         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
1276         then
1277                 GIT_TEST_CMP="$DIFF -c"
1278         else
1279                 GIT_TEST_CMP="$DIFF -u"
1280         fi
1281 fi
1282
1283 GITPERLLIB="$GIT_BUILD_DIR"/perl/build/lib
1284 export GITPERLLIB
1285 test -d "$GIT_BUILD_DIR"/templates/blt || {
1286         error "You haven't built things yet, have you?"
1287 }
1288
1289 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
1290 then
1291         echo >&2 'You need to build test-tool:'
1292         echo >&2 'Run "make t/helper/test-tool" in the source (toplevel) directory'
1293         exit 1
1294 fi
1295
1296 # Test repository
1297 rm -fr "$TRASH_DIRECTORY" || {
1298         GIT_EXIT_OK=t
1299         echo >&5 "FATAL: Cannot prepare test area"
1300         exit 1
1301 }
1302
1303 HOME="$TRASH_DIRECTORY"
1304 GNUPGHOME="$HOME/gnupg-home-not-used"
1305 export HOME GNUPGHOME
1306
1307 if test -z "$TEST_NO_CREATE_REPO"
1308 then
1309         test_create_repo "$TRASH_DIRECTORY"
1310 else
1311         mkdir -p "$TRASH_DIRECTORY"
1312 fi
1313
1314 # Use -P to resolve symlinks in our working directory so that the cwd
1315 # in subprocesses like git equals our $PWD (for pathname comparisons).
1316 cd -P "$TRASH_DIRECTORY" || exit 1
1317
1318 this_test=${0##*/}
1319 this_test=${this_test%%-*}
1320 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
1321 then
1322         say_color info >&3 "skipping test $this_test altogether"
1323         skip_all="skip all tests in $this_test"
1324         test_done
1325 fi
1326
1327 if test -n "$write_junit_xml"
1328 then
1329         junit_xml_dir="$TEST_OUTPUT_DIRECTORY/out"
1330         mkdir -p "$junit_xml_dir"
1331         junit_xml_base=${0##*/}
1332         junit_xml_path="$junit_xml_dir/TEST-${junit_xml_base%.sh}.xml"
1333         junit_attrs="name=\"${junit_xml_base%.sh}\""
1334         junit_attrs="$junit_attrs timestamp=\"$(TZ=UTC \
1335                 date +%Y-%m-%dT%H:%M:%S)\""
1336         write_junit_xml --truncate "<testsuites>" "  <testsuite $junit_attrs>"
1337         junit_suite_start=$(test-tool date getnanos)
1338         if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
1339         then
1340                 GIT_TEST_TEE_OFFSET=0
1341         fi
1342 fi
1343
1344 # Provide an implementation of the 'yes' utility; the upper bound
1345 # limit is there to help Windows that cannot stop this loop from
1346 # wasting cycles when the downstream stops reading, so do not be
1347 # tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
1348 # limit the output of the yes utility", 2016-02-02)
1349 yes () {
1350         if test $# = 0
1351         then
1352                 y=y
1353         else
1354                 y="$*"
1355         fi
1356
1357         i=0
1358         while test $i -lt 99
1359         do
1360                 echo "$y"
1361                 i=$(($i+1))
1362         done
1363 }
1364
1365 # Fix some commands on Windows
1366 uname_s=$(uname -s)
1367 case $uname_s in
1368 *MINGW*)
1369         # Windows has its own (incompatible) sort and find
1370         sort () {
1371                 /usr/bin/sort "$@"
1372         }
1373         find () {
1374                 /usr/bin/find "$@"
1375         }
1376         # git sees Windows-style pwd
1377         pwd () {
1378                 builtin pwd -W
1379         }
1380         # no POSIX permissions
1381         # backslashes in pathspec are converted to '/'
1382         # exec does not inherit the PID
1383         test_set_prereq MINGW
1384         test_set_prereq NATIVE_CRLF
1385         test_set_prereq SED_STRIPS_CR
1386         test_set_prereq GREP_STRIPS_CR
1387         GIT_TEST_CMP=mingw_test_cmp
1388         ;;
1389 *CYGWIN*)
1390         test_set_prereq POSIXPERM
1391         test_set_prereq EXECKEEPSPID
1392         test_set_prereq CYGWIN
1393         test_set_prereq SED_STRIPS_CR
1394         test_set_prereq GREP_STRIPS_CR
1395         ;;
1396 *)
1397         test_set_prereq POSIXPERM
1398         test_set_prereq BSLASHPSPEC
1399         test_set_prereq EXECKEEPSPID
1400         ;;
1401 esac
1402
1403 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1404 test -z "$NO_PERL" && test_set_prereq PERL
1405 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1406 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1407 test -n "$USE_LIBPCRE1$USE_LIBPCRE2" && test_set_prereq PCRE
1408 test -n "$USE_LIBPCRE1" && test_set_prereq LIBPCRE1
1409 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1410 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1411
1412 if test -n "$GIT_TEST_GETTEXT_POISON_ORIG"
1413 then
1414         GIT_TEST_GETTEXT_POISON=$GIT_TEST_GETTEXT_POISON_ORIG
1415         unset GIT_TEST_GETTEXT_POISON_ORIG
1416 fi
1417
1418 # Can we rely on git's output in the C locale?
1419 if test -z "$GIT_TEST_GETTEXT_POISON"
1420 then
1421         test_set_prereq C_LOCALE_OUTPUT
1422 fi
1423
1424 if test -z "$GIT_TEST_CHECK_CACHE_TREE"
1425 then
1426         GIT_TEST_CHECK_CACHE_TREE=true
1427         export GIT_TEST_CHECK_CACHE_TREE
1428 fi
1429
1430 test_lazy_prereq PIPE '
1431         # test whether the filesystem supports FIFOs
1432         test_have_prereq !MINGW,!CYGWIN &&
1433         rm -f testfifo && mkfifo testfifo
1434 '
1435
1436 test_lazy_prereq SYMLINKS '
1437         # test whether the filesystem supports symbolic links
1438         ln -s x y && test -h y
1439 '
1440
1441 test_lazy_prereq FILEMODE '
1442         test "$(git config --bool core.filemode)" = true
1443 '
1444
1445 test_lazy_prereq CASE_INSENSITIVE_FS '
1446         echo good >CamelCase &&
1447         echo bad >camelcase &&
1448         test "$(cat CamelCase)" != good
1449 '
1450
1451 test_lazy_prereq FUNNYNAMES '
1452         test_have_prereq !MINGW &&
1453         touch -- \
1454                 "FUNNYNAMES tab embedded" \
1455                 "FUNNYNAMES \"quote embedded\"" \
1456                 "FUNNYNAMES newline
1457 embedded" 2>/dev/null &&
1458         rm -- \
1459                 "FUNNYNAMES tab embedded" \
1460                 "FUNNYNAMES \"quote embedded\"" \
1461                 "FUNNYNAMES newline
1462 embedded" 2>/dev/null
1463 '
1464
1465 test_lazy_prereq UTF8_NFD_TO_NFC '
1466         # check whether FS converts nfd unicode to nfc
1467         auml=$(printf "\303\244")
1468         aumlcdiar=$(printf "\141\314\210")
1469         >"$auml" &&
1470         test -f "$aumlcdiar"
1471 '
1472
1473 test_lazy_prereq AUTOIDENT '
1474         sane_unset GIT_AUTHOR_NAME &&
1475         sane_unset GIT_AUTHOR_EMAIL &&
1476         git var GIT_AUTHOR_IDENT
1477 '
1478
1479 test_lazy_prereq EXPENSIVE '
1480         test -n "$GIT_TEST_LONG"
1481 '
1482
1483 test_lazy_prereq EXPENSIVE_ON_WINDOWS '
1484         test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
1485 '
1486
1487 test_lazy_prereq USR_BIN_TIME '
1488         test -x /usr/bin/time
1489 '
1490
1491 test_lazy_prereq NOT_ROOT '
1492         uid=$(id -u) &&
1493         test "$uid" != 0
1494 '
1495
1496 test_lazy_prereq JGIT '
1497         type jgit
1498 '
1499
1500 # SANITY is about "can you correctly predict what the filesystem would
1501 # do by only looking at the permission bits of the files and
1502 # directories?"  A typical example of !SANITY is running the test
1503 # suite as root, where a test may expect "chmod -r file && cat file"
1504 # to fail because file is supposed to be unreadable after a successful
1505 # chmod.  In an environment (i.e. combination of what filesystem is
1506 # being used and who is running the tests) that lacks SANITY, you may
1507 # be able to delete or create a file when the containing directory
1508 # doesn't have write permissions, or access a file even if the
1509 # containing directory doesn't have read or execute permissions.
1510
1511 test_lazy_prereq SANITY '
1512         mkdir SANETESTD.1 SANETESTD.2 &&
1513
1514         chmod +w SANETESTD.1 SANETESTD.2 &&
1515         >SANETESTD.1/x 2>SANETESTD.2/x &&
1516         chmod -w SANETESTD.1 &&
1517         chmod -r SANETESTD.1/x &&
1518         chmod -rx SANETESTD.2 ||
1519         BUG "cannot prepare SANETESTD"
1520
1521         ! test -r SANETESTD.1/x &&
1522         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1523         status=$?
1524
1525         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1526         rm -rf SANETESTD.1 SANETESTD.2 ||
1527         BUG "cannot clean SANETESTD"
1528         return $status
1529 '
1530
1531 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1532 GIT_UNZIP=${GIT_UNZIP:-unzip}
1533 test_lazy_prereq UNZIP '
1534         "$GIT_UNZIP" -v
1535         test $? -ne 127
1536 '
1537
1538 run_with_limited_cmdline () {
1539         (ulimit -s 128 && "$@")
1540 }
1541
1542 test_lazy_prereq CMDLINE_LIMIT '
1543         test_have_prereq !MINGW,!CYGWIN &&
1544         run_with_limited_cmdline true
1545 '
1546
1547 run_with_limited_stack () {
1548         (ulimit -s 128 && "$@")
1549 }
1550
1551 test_lazy_prereq ULIMIT_STACK_SIZE '
1552         test_have_prereq !MINGW,!CYGWIN &&
1553         run_with_limited_stack true
1554 '
1555
1556 build_option () {
1557         git version --build-options |
1558         sed -ne "s/^$1: //p"
1559 }
1560
1561 test_lazy_prereq LONG_IS_64BIT '
1562         test 8 -le "$(build_option sizeof-long)"
1563 '
1564
1565 test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
1566 test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
1567
1568 test_lazy_prereq CURL '
1569         curl --version
1570 '
1571
1572 # SHA1 is a test if the hash algorithm in use is SHA-1.  This is both for tests
1573 # which will not work with other hash algorithms and tests that work but don't
1574 # test anything meaningful (e.g. special values which cause short collisions).
1575 test_lazy_prereq SHA1 '
1576         test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
1577 '
1578
1579 test_lazy_prereq REBASE_P '
1580         test -z "$GIT_TEST_SKIP_REBASE_P"
1581 '