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