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 $ok = join("|", qw(
 388                 TRACE
 389                 TR2_
 390                 DEBUG
 391                 TEST
 392                 .*_TEST
 393                 PROVE
 394                 VALGRIND
 395                 UNZIP
 396                 PERF_
 397                 CURL_VERBOSE
 398                 TRACE_CURL
 399         ));
 400         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 401         print join("\n", @vars);
 402 ')
 403 unset XDG_CACHE_HOME
 404 unset XDG_CONFIG_HOME
 405 unset GITPERLLIB
 406 GIT_AUTHOR_EMAIL=author@example.com
 407 GIT_AUTHOR_NAME='A U Thor'
 408 GIT_COMMITTER_EMAIL=committer@example.com
 409 GIT_COMMITTER_NAME='C O Mitter'
 410 GIT_MERGE_VERBOSITY=5
 411 GIT_MERGE_AUTOEDIT=no
 412 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 413 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 414 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 415 export EDITOR
 416
 417 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 418 GIT_TRACE_BARE=1
 419 export GIT_TRACE_BARE
 420
 421 check_var_migration () {
 422         # the warnings and hints given from this helper depends
 423         # on end-user settings, which will disrupt the self-test
 424         # done on the test framework itself.
 425         case "$GIT_TEST_FRAMEWORK_SELFTEST" in
 426         t)      return ;;
 427         esac
 428
 429         old_name=$1 new_name=$2
 430         eval "old_isset=\${${old_name}:+isset}"
 431         eval "new_isset=\${${new_name}:+isset}"
 432
 433         case "$old_isset,$new_isset" in
 434         isset,)
 435                 echo >&2 "warning: $old_name is now $new_name"
 436                 echo >&2 "hint: set $new_name too during the transition period"
 437                 eval "$new_name=\$$old_name"
 438                 ;;
 439         isset,isset)
 440                 # do this later
 441                 # echo >&2 "warning: $old_name is now $new_name"
 442                 # echo >&2 "hint: remove $old_name"
 443                 ;;
 444         esac
 445 }
 446
 447 check_var_migration GIT_FSMONITOR_TEST GIT_TEST_FSMONITOR
 448 check_var_migration TEST_GIT_INDEX_VERSION GIT_TEST_INDEX_VERSION
 449 check_var_migration GIT_FORCE_PRELOAD_TEST GIT_TEST_PRELOAD_INDEX
 450
 451 # Use specific version of the index file format
 452 if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
 453 then
 454         GIT_INDEX_VERSION="$GIT_TEST_INDEX_VERSION"
 455         export GIT_INDEX_VERSION
 456 fi
 457
 458 # Add libc MALLOC and MALLOC_PERTURB test
 459 # only if we are not executing the test with valgrind
 460 if test -n "$valgrind" ||
 461    test -n "$TEST_NO_MALLOC_CHECK"
 462 then
 463         setup_malloc_check () {
 464                 : nothing
 465         }
 466         teardown_malloc_check () {
 467                 : nothing
 468         }
 469 else
 470         setup_malloc_check () {
 471                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 472                 export MALLOC_CHECK_ MALLOC_PERTURB_
 473         }
 474         teardown_malloc_check () {
 475                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 476         }
 477 fi
 478
 479 # Protect ourselves from common misconfiguration to export
 480 # CDPATH into the environment
 481 unset CDPATH
 482
 483 unset GREP_OPTIONS
 484 unset UNZIP
 485
 486 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 487 1|2|true)
 488         GIT_TRACE=4
 489         ;;
 490 esac
 491
 492 # Convenience
 493 #
 494 # A regexp to match 5, 35 and 40 hexdigits
 495 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 496 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 497 _x40="$_x35$_x05"
 498
 499 # Zero SHA-1
 500 _z40=0000000000000000000000000000000000000000
 501
 502 OID_REGEX="$_x40"
 503 ZERO_OID=$_z40
 504 EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
 505 EMPTY_BLOB=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
 506
 507 # Line feed
 508 LF='
 509 '
 510
 511 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 512 # when case-folding filenames
 513 u200c=$(printf '\342\200\214')
 514
 515 export _x05 _x35 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB ZERO_OID OID_REGEX
 516
 517 # Each test should start with something like this, after copyright notices:
 518 #
 519 # test_description='Description of this test...
 520 # This test checks if command xyzzy does the right thing...
 521 # '
 522 # . ./test-lib.sh
 523 test "x$TERM" != "xdumb" && (
 524                 test -t 1 &&
 525                 tput bold >/dev/null 2>&1 &&
 526                 tput setaf 1 >/dev/null 2>&1 &&
 527                 tput sgr0 >/dev/null 2>&1
 528         ) &&
 529         color=t
 530
 531 if test -n "$color"
 532 then
 533         # Save the color control sequences now rather than run tput
 534         # each time say_color() is called.  This is done for two
 535         # reasons:
 536         #   * TERM will be changed to dumb
 537         #   * HOME will be changed to a temporary directory and tput
 538         #     might need to read ~/.terminfo from the original HOME
 539         #     directory to get the control sequences
 540         # Note:  This approach assumes the control sequences don't end
 541         # in a newline for any terminal of interest (command
 542         # substitutions strip trailing newlines).  Given that most
 543         # (all?) terminals in common use are related to ECMA-48, this
 544         # shouldn't be a problem.
 545         say_color_error=$(tput bold; tput setaf 1) # bold red
 546         say_color_skip=$(tput setaf 4) # blue
 547         say_color_warn=$(tput setaf 3) # brown/yellow
 548         say_color_pass=$(tput setaf 2) # green
 549         say_color_info=$(tput setaf 6) # cyan
 550         say_color_reset=$(tput sgr0)
 551         say_color_="" # no formatting for normal text
 552         say_color () {
 553                 test -z "$1" && test -n "$quiet" && return
 554                 eval "say_color_color=\$say_color_$1"
 555                 shift
 556                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 557         }
 558 else
 559         say_color() {
 560                 test -z "$1" && test -n "$quiet" && return
 561                 shift
 562                 printf "%s\n" "$*"
 563         }
 564 fi
 565
 566 TERM=dumb
 567 export TERM
 568
 569 error () {
 570         say_color error "error: $*"
 571         GIT_EXIT_OK=t
 572         exit 1
 573 }
 574
 575 BUG () {
 576         error >&7 "bug in the test script: $*"
 577 }
 578
 579 say () {
 580         say_color info "$*"
 581 }
 582
 583 if test -n "$HARNESS_ACTIVE"
 584 then
 585         if test "$verbose" = t || test -n "$verbose_only"
 586         then
 587                 printf 'Bail out! %s\n' \
 588                  'verbose mode forbidden under TAP harness; try --verbose-log'
 589                 exit 1
 590         fi
 591 fi
 592
 593 test "${test_description}" != "" ||
 594 error "Test script did not set test_description."
 595
 596 if test "$help" = "t"
 597 then
 598         printf '%s\n' "$test_description"
 599         exit 0
 600 fi
 601
 602 exec 5>&1
 603 exec 6<&0
 604 exec 7>&2
 605 if test "$verbose_log" = "t"
 606 then
 607         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 608 elif test "$verbose" = "t"
 609 then
 610         exec 4>&2 3>&1
 611 else
 612         exec 4>/dev/null 3>/dev/null
 613 fi
 614
 615 # Send any "-x" output directly to stderr to avoid polluting tests
 616 # which capture stderr. We can do this unconditionally since it
 617 # has no effect if tracing isn't turned on.
 618 #
 619 # Note that this sets up the trace fd as soon as we assign the variable, so it
 620 # must come after the creation of descriptor 4 above. Likewise, we must never
 621 # unset this, as it has the side effect of closing descriptor 4, which we
 622 # use to show verbose tests to the user.
 623 #
 624 # Note also that we don't need or want to export it. The tracing is local to
 625 # this shell, and we would not want to influence any shells we exec.
 626 BASH_XTRACEFD=4
 627
 628 test_failure=0
 629 test_count=0
 630 test_fixed=0
 631 test_broken=0
 632 test_success=0
 633
 634 test_external_has_tap=0
 635
 636 die () {
 637         code=$?
 638         # This is responsible for running the atexit commands even when a
 639         # test script run with '--immediate' fails, or when the user hits
 640         # ctrl-C, i.e. when 'test_done' is not invoked at all.
 641         test_atexit_handler || code=$?
 642         if test -n "$GIT_EXIT_OK"
 643         then
 644                 exit $code
 645         else
 646                 echo >&5 "FATAL: Unexpected exit with code $code"
 647                 exit 1
 648         fi
 649 }
 650
 651 GIT_EXIT_OK=
 652 trap 'die' EXIT
 653 # Disable '-x' tracing, because with some shells, notably dash, it
 654 # prevents running the cleanup commands when a test script run with
 655 # '--verbose-log -x' is interrupted.
 656 trap '{ code=$?; set +x; } 2>/dev/null; exit $code' INT TERM HUP
 657
 658 # The user-facing functions are loaded from a separate file so that
 659 # test_perf subshells can have them too
 660 . "$TEST_DIRECTORY/test-lib-functions.sh"
 661
 662 # You are not expected to call test_ok_ and test_failure_ directly, use
 663 # the test_expect_* functions instead.
 664
 665 test_ok_ () {
 666         if test -n "$write_junit_xml"
 667         then
 668                 write_junit_xml_testcase "$*"
 669         fi
 670         test_success=$(($test_success + 1))
 671         say_color "" "ok $test_count - $@"
 672 }
 673
 674 test_failure_ () {
 675         if test -n "$write_junit_xml"
 676         then
 677                 junit_insert="<failure message=\"not ok $test_count -"
 678                 junit_insert="$junit_insert $(xml_attr_encode "$1")\">"
 679                 junit_insert="$junit_insert $(xml_attr_encode \
 680                         "$(if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
 681                            then
 682                                 test-tool path-utils skip-n-bytes \
 683                                         "$GIT_TEST_TEE_OUTPUT_FILE" $GIT_TEST_TEE_OFFSET
 684                            else
 685                                 printf '%s\n' "$@" | sed 1d
 686                            fi)")"
 687                 junit_insert="$junit_insert</failure>"
 688                 if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
 689                 then
 690                         junit_insert="$junit_insert<system-err>$(xml_attr_encode \
 691                                 "$(cat "$GIT_TEST_TEE_OUTPUT_FILE")")</system-err>"
 692                 fi
 693                 write_junit_xml_testcase "$1" "      $junit_insert"
 694         fi
 695         test_failure=$(($test_failure + 1))
 696         say_color error "not ok $test_count - $1"
 697         shift
 698         printf '%s\n' "$*" | sed -e 's/^/#      /'
 699         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 700 }
 701
 702 test_known_broken_ok_ () {
 703         if test -n "$write_junit_xml"
 704         then
 705                 write_junit_xml_testcase "$* (breakage fixed)"
 706         fi
 707         test_fixed=$(($test_fixed+1))
 708         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 709 }
 710
 711 test_known_broken_failure_ () {
 712         if test -n "$write_junit_xml"
 713         then
 714                 write_junit_xml_testcase "$* (known breakage)"
 715         fi
 716         test_broken=$(($test_broken+1))
 717         say_color warn "not ok $test_count - $@ # TODO known breakage"
 718 }
 719
 720 test_debug () {
 721         test "$debug" = "" || eval "$1"
 722 }
 723
 724 match_pattern_list () {
 725         arg="$1"
 726         shift
 727         test -z "$*" && return 1
 728         for pattern_
 729         do
 730                 case "$arg" in
 731                 $pattern_)
 732                         return 0
 733                 esac
 734         done
 735         return 1
 736 }
 737
 738 match_test_selector_list () {
 739         title="$1"
 740         shift
 741         arg="$1"
 742         shift
 743         test -z "$1" && return 0
 744
 745         # Both commas and whitespace are accepted as separators.
 746         OLDIFS=$IFS
 747         IFS='   ,'
 748         set -- $1
 749         IFS=$OLDIFS
 750
 751         # If the first selector is negative we include by default.
 752         include=
 753         case "$1" in
 754                 !*) include=t ;;
 755         esac
 756
 757         for selector
 758         do
 759                 orig_selector=$selector
 760
 761                 positive=t
 762                 case "$selector" in
 763                         !*)
 764                                 positive=
 765                                 selector=${selector##?}
 766                                 ;;
 767                 esac
 768
 769                 test -z "$selector" && continue
 770
 771                 case "$selector" in
 772                         *-*)
 773                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 774                                 then
 775                                         echo "error: $title: invalid non-numeric in range" \
 776                                                 "start: '$orig_selector'" >&2
 777                                         exit 1
 778                                 fi
 779                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 780                                 then
 781                                         echo "error: $title: invalid non-numeric in range" \
 782                                                 "end: '$orig_selector'" >&2
 783                                         exit 1
 784                                 fi
 785                                 ;;
 786                         *)
 787                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 788                                 then
 789                                         echo "error: $title: invalid non-numeric in test" \
 790                                                 "selector: '$orig_selector'" >&2
 791                                         exit 1
 792                                 fi
 793                 esac
 794
 795                 # Short cut for "obvious" cases
 796                 test -z "$include" && test -z "$positive" && continue
 797                 test -n "$include" && test -n "$positive" && continue
 798
 799                 case "$selector" in
 800                         -*)
 801                                 if test $arg -le ${selector#-}
 802                                 then
 803                                         include=$positive
 804                                 fi
 805                                 ;;
 806                         *-)
 807                                 if test $arg -ge ${selector%-}
 808                                 then
 809                                         include=$positive
 810                                 fi
 811                                 ;;
 812                         *-*)
 813                                 if test ${selector%%-*} -le $arg \
 814                                         && test $arg -le ${selector#*-}
 815                                 then
 816                                         include=$positive
 817                                 fi
 818                                 ;;
 819                         *)
 820                                 if test $arg -eq $selector
 821                                 then
 822                                         include=$positive
 823                                 fi
 824                                 ;;
 825                 esac
 826         done
 827
 828         test -n "$include"
 829 }
 830
 831 maybe_teardown_verbose () {
 832         test -z "$verbose_only" && return
 833         exec 4>/dev/null 3>/dev/null
 834         verbose=
 835 }
 836
 837 last_verbose=t
 838 maybe_setup_verbose () {
 839         test -z "$verbose_only" && return
 840         if match_pattern_list $test_count $verbose_only
 841         then
 842                 exec 4>&2 3>&1
 843                 # Emit a delimiting blank line when going from
 844                 # non-verbose to verbose.  Within verbose mode the
 845                 # delimiter is printed by test_expect_*.  The choice
 846                 # of the initial $last_verbose is such that before
 847                 # test 1, we do not print it.
 848                 test -z "$last_verbose" && echo >&3 ""
 849                 verbose=t
 850         else
 851                 exec 4>/dev/null 3>/dev/null
 852                 verbose=
 853         fi
 854         last_verbose=$verbose
 855 }
 856
 857 maybe_teardown_valgrind () {
 858         test -z "$GIT_VALGRIND" && return
 859         GIT_VALGRIND_ENABLED=
 860 }
 861
 862 maybe_setup_valgrind () {
 863         test -z "$GIT_VALGRIND" && return
 864         if test -z "$valgrind_only"
 865         then
 866                 GIT_VALGRIND_ENABLED=t
 867                 return
 868         fi
 869         GIT_VALGRIND_ENABLED=
 870         if match_pattern_list $test_count $valgrind_only
 871         then
 872                 GIT_VALGRIND_ENABLED=t
 873         fi
 874 }
 875
 876 want_trace () {
 877         test "$trace" = t && {
 878                 test "$verbose" = t || test "$verbose_log" = t
 879         }
 880 }
 881
 882 # This is a separate function because some tests use
 883 # "return" to end a test_expect_success block early
 884 # (and we want to make sure we run any cleanup like
 885 # "set +x").
 886 test_eval_inner_ () {
 887         # Do not add anything extra (including LF) after '$*'
 888         eval "
 889                 want_trace && set -x
 890                 $*"
 891 }
 892
 893 test_eval_ () {
 894         # If "-x" tracing is in effect, then we want to avoid polluting stderr
 895         # with non-test commands. But once in "set -x" mode, we cannot prevent
 896         # the shell from printing the "set +x" to turn it off (nor the saving
 897         # of $? before that). But we can make sure that the output goes to
 898         # /dev/null.
 899         #
 900         # There are a few subtleties here:
 901         #
 902         #   - we have to redirect descriptor 4 in addition to 2, to cover
 903         #     BASH_XTRACEFD
 904         #
 905         #   - the actual eval has to come before the redirection block (since
 906         #     it needs to see descriptor 4 to set up its stderr)
 907         #
 908         #   - likewise, any error message we print must be outside the block to
 909         #     access descriptor 4
 910         #
 911         #   - checking $? has to come immediately after the eval, but it must
 912         #     be _inside_ the block to avoid polluting the "set -x" output
 913         #
 914
 915         test_eval_inner_ "$@" </dev/null >&3 2>&4
 916         {
 917                 test_eval_ret_=$?
 918                 if want_trace
 919                 then
 920                         set +x
 921                 fi
 922         } 2>/dev/null 4>&2
 923
 924         if test "$test_eval_ret_" != 0 && want_trace
 925         then
 926                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 927         fi
 928         return $test_eval_ret_
 929 }
 930
 931 test_run_ () {
 932         test_cleanup=:
 933         expecting_failure=$2
 934
 935         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
 936                 # turn off tracing for this test-eval, as it simply creates
 937                 # confusing noise in the "-x" output
 938                 trace_tmp=$trace
 939                 trace=
 940                 # 117 is magic because it is unlikely to match the exit
 941                 # code of other programs
 942                 if $(printf '%s\n' "$1" | sed -f "$GIT_BUILD_DIR/t/chainlint.sed" | grep -q '?![A-Z][A-Z]*?!') ||
 943                         test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
 944                 then
 945                         BUG "broken &&-chain or run-away HERE-DOC: $1"
 946                 fi
 947                 trace=$trace_tmp
 948         fi
 949
 950         setup_malloc_check
 951         test_eval_ "$1"
 952         eval_ret=$?
 953         teardown_malloc_check
 954
 955         if test -z "$immediate" || test $eval_ret = 0 ||
 956            test -n "$expecting_failure" && test "$test_cleanup" != ":"
 957         then
 958                 setup_malloc_check
 959                 test_eval_ "$test_cleanup"
 960                 teardown_malloc_check
 961         fi
 962         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 963         then
 964                 echo ""
 965         fi
 966         return "$eval_ret"
 967 }
 968
 969 test_start_ () {
 970         test_count=$(($test_count+1))
 971         maybe_setup_verbose
 972         maybe_setup_valgrind
 973         if test -n "$write_junit_xml"
 974         then
 975                 junit_start=$(test-tool date getnanos)
 976         fi
 977 }
 978
 979 test_finish_ () {
 980         echo >&3 ""
 981         maybe_teardown_valgrind
 982         maybe_teardown_verbose
 983         if test -n "$GIT_TEST_TEE_OFFSET"
 984         then
 985                 GIT_TEST_TEE_OFFSET=$(test-tool path-utils file-size \
 986                         "$GIT_TEST_TEE_OUTPUT_FILE")
 987         fi
 988 }
 989
 990 test_skip () {
 991         to_skip=
 992         skipped_reason=
 993         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 994         then
 995                 to_skip=t
 996                 skipped_reason="GIT_SKIP_TESTS"
 997         fi
 998         if test -z "$to_skip" && test -n "$test_prereq" &&
 999            ! test_have_prereq "$test_prereq"
1000         then
1001                 to_skip=t
1002
1003                 of_prereq=
1004                 if test "$missing_prereq" != "$test_prereq"
1005                 then
1006                         of_prereq=" of $test_prereq"
1007                 fi
1008                 skipped_reason="missing $missing_prereq${of_prereq}"
1009         fi
1010         if test -z "$to_skip" && test -n "$run_list" &&
1011                 ! match_test_selector_list '--run' $test_count "$run_list"
1012         then
1013                 to_skip=t
1014                 skipped_reason="--run"
1015         fi
1016
1017         case "$to_skip" in
1018         t)
1019                 if test -n "$write_junit_xml"
1020                 then
1021                         message="$(xml_attr_encode "$skipped_reason")"
1022                         write_junit_xml_testcase "$1" \
1023                                 "      <skipped message=\"$message\" />"
1024                 fi
1025
1026                 say_color skip >&3 "skipping test: $@"
1027                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
1028                 : true
1029                 ;;
1030         *)
1031                 false
1032                 ;;
1033         esac
1034 }
1035
1036 # stub; perf-lib overrides it
1037 test_at_end_hook_ () {
1038         :
1039 }
1040
1041 write_junit_xml () {
1042         case "$1" in
1043         --truncate)
1044                 >"$junit_xml_path"
1045                 junit_have_testcase=
1046                 shift
1047                 ;;
1048         esac
1049         printf '%s\n' "$@" >>"$junit_xml_path"
1050 }
1051
1052 xml_attr_encode () {
1053         printf '%s\n' "$@" | test-tool xml-encode
1054 }
1055
1056 write_junit_xml_testcase () {
1057         junit_attrs="name=\"$(xml_attr_encode "$this_test.$test_count $1")\""
1058         shift
1059         junit_attrs="$junit_attrs classname=\"$this_test\""
1060         junit_attrs="$junit_attrs time=\"$(test-tool \
1061                 date getnanos $junit_start)\""
1062         write_junit_xml "$(printf '%s\n' \
1063                 "    <testcase $junit_attrs>" "$@" "    </testcase>")"
1064         junit_have_testcase=t
1065 }
1066
1067 test_atexit_cleanup=:
1068 test_atexit_handler () {
1069         # In a succeeding test script 'test_atexit_handler' is invoked
1070         # twice: first from 'test_done', then from 'die' in the trap on
1071         # EXIT.
1072         # This condition and resetting 'test_atexit_cleanup' below makes
1073         # sure that the registered cleanup commands are run only once.
1074         test : != "$test_atexit_cleanup" || return 0
1075
1076         setup_malloc_check
1077         test_eval_ "$test_atexit_cleanup"
1078         test_atexit_cleanup=:
1079         teardown_malloc_check
1080 }
1081
1082 test_done () {
1083         GIT_EXIT_OK=t
1084
1085         # Run the atexit commands _before_ the trash directory is
1086         # removed, so the commands can access pidfiles and socket files.
1087         test_atexit_handler
1088
1089         if test -n "$write_junit_xml" && test -n "$junit_xml_path"
1090         then
1091                 test -n "$junit_have_testcase" || {
1092                         junit_start=$(test-tool date getnanos)
1093                         write_junit_xml_testcase "all tests skipped"
1094                 }
1095
1096                 # adjust the overall time
1097                 junit_time=$(test-tool date getnanos $junit_suite_start)
1098                 sed "s/<testsuite [^>]*/& time=\"$junit_time\"/" \
1099                         <"$junit_xml_path" >"$junit_xml_path.new"
1100                 mv "$junit_xml_path.new" "$junit_xml_path"
1101
1102                 write_junit_xml "  </testsuite>" "</testsuites>"
1103         fi
1104
1105         if test -z "$HARNESS_ACTIVE"
1106         then
1107                 mkdir -p "$TEST_RESULTS_DIR"
1108
1109                 cat >"$TEST_RESULTS_BASE.counts" <<-EOF
1110                 total $test_count
1111                 success $test_success
1112                 fixed $test_fixed
1113                 broken $test_broken
1114                 failed $test_failure
1115
1116                 EOF
1117         fi
1118
1119         if test "$test_fixed" != 0
1120         then
1121                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
1122         fi
1123         if test "$test_broken" != 0
1124         then
1125                 say_color warn "# still have $test_broken known breakage(s)"
1126         fi
1127         if test "$test_broken" != 0 || test "$test_fixed" != 0
1128         then
1129                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
1130                 msg="remaining $test_remaining test(s)"
1131         else
1132                 test_remaining=$test_count
1133                 msg="$test_count test(s)"
1134         fi
1135         case "$test_failure" in
1136         0)
1137                 if test $test_external_has_tap -eq 0
1138                 then
1139                         if test $test_remaining -gt 0
1140                         then
1141                                 say_color pass "# passed all $msg"
1142                         fi
1143
1144                         # Maybe print SKIP message
1145                         test -z "$skip_all" || skip_all="# SKIP $skip_all"
1146                         case "$test_count" in
1147                         0)
1148                                 say "1..$test_count${skip_all:+ $skip_all}"
1149                                 ;;
1150                         *)
1151                                 test -z "$skip_all" ||
1152                                 say_color warn "$skip_all"
1153                                 say "1..$test_count"
1154                                 ;;
1155                         esac
1156                 fi
1157
1158                 if test -z "$debug"
1159                 then
1160                         test -d "$TRASH_DIRECTORY" ||
1161                         error "Tests passed but trash directory already removed before test cleanup; aborting"
1162
1163                         cd "$TRASH_DIRECTORY/.." &&
1164                         rm -fr "$TRASH_DIRECTORY" || {
1165                                 # try again in a bit
1166                                 sleep 5;
1167                                 rm -fr "$TRASH_DIRECTORY"
1168                         } ||
1169                         error "Tests passed but test cleanup failed; aborting"
1170                 fi
1171                 test_at_end_hook_
1172
1173                 exit 0 ;;
1174
1175         *)
1176                 if test $test_external_has_tap -eq 0
1177                 then
1178                         say_color error "# failed $test_failure among $msg"
1179                         say "1..$test_count"
1180                 fi
1181
1182                 exit 1 ;;
1183
1184         esac
1185 }
1186
1187 if test -n "$valgrind"
1188 then
1189         make_symlink () {
1190                 test -h "$2" &&
1191                 test "$1" = "$(readlink "$2")" || {
1192                         # be super paranoid
1193                         if mkdir "$2".lock
1194                         then
1195                                 rm -f "$2" &&
1196                                 ln -s "$1" "$2" &&
1197                                 rm -r "$2".lock
1198                         else
1199                                 while test -d "$2".lock
1200                                 do
1201                                         say "Waiting for lock on $2."
1202                                         sleep 1
1203                                 done
1204                         fi
1205                 }
1206         }
1207
1208         make_valgrind_symlink () {
1209                 # handle only executables, unless they are shell libraries that
1210                 # need to be in the exec-path.
1211                 test -x "$1" ||
1212                 test "# " = "$(test_copy_bytes 2 <"$1")" ||
1213                 return;
1214
1215                 base=$(basename "$1")
1216                 case "$base" in
1217                 test-*)
1218                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
1219                         ;;
1220                 *)
1221                         symlink_target="$GIT_BUILD_DIR/$base"
1222                         ;;
1223                 esac
1224                 # do not override scripts
1225                 if test -x "$symlink_target" &&
1226                     test ! -d "$symlink_target" &&
1227                     test "#!" != "$(test_copy_bytes 2 <"$symlink_target")"
1228                 then
1229                         symlink_target=../valgrind.sh
1230                 fi
1231                 case "$base" in
1232                 *.sh|*.perl)
1233                         symlink_target=../unprocessed-script
1234                 esac
1235                 # create the link, or replace it if it is out of date
1236                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
1237         }
1238
1239         # override all git executables in TEST_DIRECTORY/..
1240         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
1241         mkdir -p "$GIT_VALGRIND"/bin
1242         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
1243         do
1244                 make_valgrind_symlink $file
1245         done
1246         # special-case the mergetools loadables
1247         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
1248         OLDIFS=$IFS
1249         IFS=:
1250         for path in $PATH
1251         do
1252                 ls "$path"/git-* 2> /dev/null |
1253                 while read file
1254                 do
1255                         make_valgrind_symlink "$file"
1256                 done
1257         done
1258         IFS=$OLDIFS
1259         PATH=$GIT_VALGRIND/bin:$PATH
1260         GIT_EXEC_PATH=$GIT_VALGRIND/bin
1261         export GIT_VALGRIND
1262         GIT_VALGRIND_MODE="$valgrind"
1263         export GIT_VALGRIND_MODE
1264         GIT_VALGRIND_ENABLED=t
1265         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
1266         export GIT_VALGRIND_ENABLED
1267 elif test -n "$GIT_TEST_INSTALLED"
1268 then
1269         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
1270         error "Cannot run git from $GIT_TEST_INSTALLED."
1271         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR/t/helper:$PATH
1272         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
1273 else # normal case, use ../bin-wrappers only unless $with_dashes:
1274         if test -n "$no_bin_wrappers"
1275         then
1276                 with_dashes=t
1277         else
1278                 git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
1279                 if ! test -x "$git_bin_dir/git"
1280                 then
1281                         if test -z "$with_dashes"
1282                         then
1283                                 say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
1284                         fi
1285                         with_dashes=t
1286                 fi
1287                 PATH="$git_bin_dir:$PATH"
1288         fi
1289         GIT_EXEC_PATH=$GIT_BUILD_DIR
1290         if test -n "$with_dashes"
1291         then
1292                 PATH="$GIT_BUILD_DIR:$GIT_BUILD_DIR/t/helper:$PATH"
1293         fi
1294 fi
1295 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
1296 GIT_CONFIG_NOSYSTEM=1
1297 GIT_ATTR_NOSYSTEM=1
1298 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
1299
1300 if test -z "$GIT_TEST_CMP"
1301 then
1302         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
1303         then
1304                 GIT_TEST_CMP="$DIFF -c"
1305         else
1306                 GIT_TEST_CMP="$DIFF -u"
1307         fi
1308 fi
1309
1310 GITPERLLIB="$GIT_BUILD_DIR"/perl/build/lib
1311 export GITPERLLIB
1312 test -d "$GIT_BUILD_DIR"/templates/blt || {
1313         error "You haven't built things yet, have you?"
1314 }
1315
1316 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool$X
1317 then
1318         echo >&2 'You need to build test-tool:'
1319         echo >&2 'Run "make t/helper/test-tool" in the source (toplevel) directory'
1320         exit 1
1321 fi
1322
1323 # Test repository
1324 rm -fr "$TRASH_DIRECTORY" || {
1325         GIT_EXIT_OK=t
1326         echo >&5 "FATAL: Cannot prepare test area"
1327         exit 1
1328 }
1329
1330 HOME="$TRASH_DIRECTORY"
1331 GNUPGHOME="$HOME/gnupg-home-not-used"
1332 export HOME GNUPGHOME
1333
1334 if test -z "$TEST_NO_CREATE_REPO"
1335 then
1336         test_create_repo "$TRASH_DIRECTORY"
1337 else
1338         mkdir -p "$TRASH_DIRECTORY"
1339 fi
1340
1341 # Use -P to resolve symlinks in our working directory so that the cwd
1342 # in subprocesses like git equals our $PWD (for pathname comparisons).
1343 cd -P "$TRASH_DIRECTORY" || exit 1
1344
1345 this_test=${0##*/}
1346 this_test=${this_test%%-*}
1347 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
1348 then
1349         say_color info >&3 "skipping test $this_test altogether"
1350         skip_all="skip all tests in $this_test"
1351         test_done
1352 fi
1353
1354 if test -n "$write_junit_xml"
1355 then
1356         junit_xml_dir="$TEST_OUTPUT_DIRECTORY/out"
1357         mkdir -p "$junit_xml_dir"
1358         junit_xml_base=${0##*/}
1359         junit_xml_path="$junit_xml_dir/TEST-${junit_xml_base%.sh}.xml"
1360         junit_attrs="name=\"${junit_xml_base%.sh}\""
1361         junit_attrs="$junit_attrs timestamp=\"$(TZ=UTC \
1362                 date +%Y-%m-%dT%H:%M:%S)\""
1363         write_junit_xml --truncate "<testsuites>" "  <testsuite $junit_attrs>"
1364         junit_suite_start=$(test-tool date getnanos)
1365         if test -n "$GIT_TEST_TEE_OUTPUT_FILE"
1366         then
1367                 GIT_TEST_TEE_OFFSET=0
1368         fi
1369 fi
1370
1371 # Provide an implementation of the 'yes' utility; the upper bound
1372 # limit is there to help Windows that cannot stop this loop from
1373 # wasting cycles when the downstream stops reading, so do not be
1374 # tempted to turn it into an infinite loop. cf. 6129c930 ("test-lib:
1375 # limit the output of the yes utility", 2016-02-02)
1376 yes () {
1377         if test $# = 0
1378         then
1379                 y=y
1380         else
1381                 y="$*"
1382         fi
1383
1384         i=0
1385         while test $i -lt 99
1386         do
1387                 echo "$y"
1388                 i=$(($i+1))
1389         done
1390 }
1391
1392 # Fix some commands on Windows
1393 uname_s=$(uname -s)
1394 case $uname_s in
1395 *MINGW*)
1396         # Windows has its own (incompatible) sort and find
1397         sort () {
1398                 /usr/bin/sort "$@"
1399         }
1400         find () {
1401                 /usr/bin/find "$@"
1402         }
1403         # git sees Windows-style pwd
1404         pwd () {
1405                 builtin pwd -W
1406         }
1407         # no POSIX permissions
1408         # backslashes in pathspec are converted to '/'
1409         # exec does not inherit the PID
1410         test_set_prereq MINGW
1411         test_set_prereq NATIVE_CRLF
1412         test_set_prereq SED_STRIPS_CR
1413         test_set_prereq GREP_STRIPS_CR
1414         GIT_TEST_CMP=mingw_test_cmp
1415         ;;
1416 *CYGWIN*)
1417         test_set_prereq POSIXPERM
1418         test_set_prereq EXECKEEPSPID
1419         test_set_prereq CYGWIN
1420         test_set_prereq SED_STRIPS_CR
1421         test_set_prereq GREP_STRIPS_CR
1422         ;;
1423 *)
1424         test_set_prereq POSIXPERM
1425         test_set_prereq BSLASHPSPEC
1426         test_set_prereq EXECKEEPSPID
1427         ;;
1428 esac
1429
1430 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1431 test -z "$NO_PERL" && test_set_prereq PERL
1432 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1433 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1434 test -n "$USE_LIBPCRE1$USE_LIBPCRE2" && test_set_prereq PCRE
1435 test -n "$USE_LIBPCRE1" && test_set_prereq LIBPCRE1
1436 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1437 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1438
1439 if test -n "$GIT_TEST_GETTEXT_POISON_ORIG"
1440 then
1441         GIT_TEST_GETTEXT_POISON=$GIT_TEST_GETTEXT_POISON_ORIG
1442         export GIT_TEST_GETTEXT_POISON
1443         unset GIT_TEST_GETTEXT_POISON_ORIG
1444 fi
1445
1446 # Can we rely on git's output in the C locale?
1447 if test -z "$GIT_TEST_GETTEXT_POISON"
1448 then
1449         test_set_prereq C_LOCALE_OUTPUT
1450 fi
1451
1452 if test -z "$GIT_TEST_CHECK_CACHE_TREE"
1453 then
1454         GIT_TEST_CHECK_CACHE_TREE=true
1455         export GIT_TEST_CHECK_CACHE_TREE
1456 fi
1457
1458 test_lazy_prereq PIPE '
1459         # test whether the filesystem supports FIFOs
1460         test_have_prereq !MINGW,!CYGWIN &&
1461         rm -f testfifo && mkfifo testfifo
1462 '
1463
1464 test_lazy_prereq SYMLINKS '
1465         # test whether the filesystem supports symbolic links
1466         ln -s x y && test -h y
1467 '
1468
1469 test_lazy_prereq FILEMODE '
1470         test "$(git config --bool core.filemode)" = true
1471 '
1472
1473 test_lazy_prereq CASE_INSENSITIVE_FS '
1474         echo good >CamelCase &&
1475         echo bad >camelcase &&
1476         test "$(cat CamelCase)" != good
1477 '
1478
1479 test_lazy_prereq FUNNYNAMES '
1480         test_have_prereq !MINGW &&
1481         touch -- \
1482                 "FUNNYNAMES tab embedded" \
1483                 "FUNNYNAMES \"quote embedded\"" \
1484                 "FUNNYNAMES newline
1485 embedded" 2>/dev/null &&
1486         rm -- \
1487                 "FUNNYNAMES tab embedded" \
1488                 "FUNNYNAMES \"quote embedded\"" \
1489                 "FUNNYNAMES newline
1490 embedded" 2>/dev/null
1491 '
1492
1493 test_lazy_prereq UTF8_NFD_TO_NFC '
1494         # check whether FS converts nfd unicode to nfc
1495         auml=$(printf "\303\244")
1496         aumlcdiar=$(printf "\141\314\210")
1497         >"$auml" &&
1498         test -f "$aumlcdiar"
1499 '
1500
1501 test_lazy_prereq AUTOIDENT '
1502         sane_unset GIT_AUTHOR_NAME &&
1503         sane_unset GIT_AUTHOR_EMAIL &&
1504         git var GIT_AUTHOR_IDENT
1505 '
1506
1507 test_lazy_prereq EXPENSIVE '
1508         test -n "$GIT_TEST_LONG"
1509 '
1510
1511 test_lazy_prereq EXPENSIVE_ON_WINDOWS '
1512         test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
1513 '
1514
1515 test_lazy_prereq USR_BIN_TIME '
1516         test -x /usr/bin/time
1517 '
1518
1519 test_lazy_prereq NOT_ROOT '
1520         uid=$(id -u) &&
1521         test "$uid" != 0
1522 '
1523
1524 test_lazy_prereq JGIT '
1525         jgit --version
1526 '
1527
1528 # SANITY is about "can you correctly predict what the filesystem would
1529 # do by only looking at the permission bits of the files and
1530 # directories?"  A typical example of !SANITY is running the test
1531 # suite as root, where a test may expect "chmod -r file && cat file"
1532 # to fail because file is supposed to be unreadable after a successful
1533 # chmod.  In an environment (i.e. combination of what filesystem is
1534 # being used and who is running the tests) that lacks SANITY, you may
1535 # be able to delete or create a file when the containing directory
1536 # doesn't have write permissions, or access a file even if the
1537 # containing directory doesn't have read or execute permissions.
1538
1539 test_lazy_prereq SANITY '
1540         mkdir SANETESTD.1 SANETESTD.2 &&
1541
1542         chmod +w SANETESTD.1 SANETESTD.2 &&
1543         >SANETESTD.1/x 2>SANETESTD.2/x &&
1544         chmod -w SANETESTD.1 &&
1545         chmod -r SANETESTD.1/x &&
1546         chmod -rx SANETESTD.2 ||
1547         BUG "cannot prepare SANETESTD"
1548
1549         ! test -r SANETESTD.1/x &&
1550         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1551         status=$?
1552
1553         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1554         rm -rf SANETESTD.1 SANETESTD.2 ||
1555         BUG "cannot clean SANETESTD"
1556         return $status
1557 '
1558
1559 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1560 GIT_UNZIP=${GIT_UNZIP:-unzip}
1561 test_lazy_prereq UNZIP '
1562         "$GIT_UNZIP" -v
1563         test $? -ne 127
1564 '
1565
1566 run_with_limited_cmdline () {
1567         (ulimit -s 128 && "$@")
1568 }
1569
1570 test_lazy_prereq CMDLINE_LIMIT '
1571         test_have_prereq !MINGW,!CYGWIN &&
1572         run_with_limited_cmdline true
1573 '
1574
1575 run_with_limited_stack () {
1576         (ulimit -s 128 && "$@")
1577 }
1578
1579 test_lazy_prereq ULIMIT_STACK_SIZE '
1580         test_have_prereq !MINGW,!CYGWIN &&
1581         run_with_limited_stack true
1582 '
1583
1584 build_option () {
1585         git version --build-options |
1586         sed -ne "s/^$1: //p"
1587 }
1588
1589 test_lazy_prereq LONG_IS_64BIT '
1590         test 8 -le "$(build_option sizeof-long)"
1591 '
1592
1593 test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
1594 test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
1595
1596 test_lazy_prereq CURL '
1597         curl --version
1598 '
1599
1600 # SHA1 is a test if the hash algorithm in use is SHA-1.  This is both for tests
1601 # which will not work with other hash algorithms and tests that work but don't
1602 # test anything meaningful (e.g. special values which cause short collisions).
1603 test_lazy_prereq SHA1 '
1604         test $(git hash-object /dev/null) = e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
1605 '
1606
1607 test_lazy_prereq REBASE_P '
1608         test -z "$GIT_TEST_SKIP_REBASE_P"
1609 '
1610
1611 test_lazy_prereq FAIL_PREREQS '
1612         test -n "$GIT_TEST_FAIL_PREREQS"
1613 '