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="$TEST_DIRECTORY"/..
  38
  39 ################################################################
  40 # It appears that people try to run tests without building...
  41 "$GIT_BUILD_DIR/git" >/dev/null
  42 if test $? != 1
  43 then
  44         echo >&2 'error: you do not seem to have built git yet.'
  45         exit 1
  46 fi
  47
  48 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  49 export PERL_PATH SHELL_PATH
  50
  51 # if --tee was passed, write the output not only to the terminal, but
  52 # additionally to the file test-results/$BASENAME.out, too.
  53 case "$GIT_TEST_TEE_STARTED, $* " in
  54 done,*)
  55         # do not redirect again
  56         ;;
  57 *' --tee '*|*' --va'*|*' --verbose-log '*)
  58         mkdir -p "$TEST_OUTPUT_DIRECTORY/test-results"
  59         BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
  60
  61         # Make this filename available to the sub-process in case it is using
  62         # --verbose-log.
  63         GIT_TEST_TEE_OUTPUT_FILE=$BASE.out
  64         export GIT_TEST_TEE_OUTPUT_FILE
  65
  66         # Truncate before calling "tee -a" to get rid of the results
  67         # from any previous runs.
  68         >"$GIT_TEST_TEE_OUTPUT_FILE"
  69
  70         (GIT_TEST_TEE_STARTED=done ${SHELL_PATH} "$0" "$@" 2>&1;
  71          echo $? >"$BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
  72         test "$(cat "$BASE.exit")" = 0
  73         exit
  74         ;;
  75 esac
  76
  77 # For repeatability, reset the environment to known value.
  78 # TERM is sanitized below, after saving color control sequences.
  79 LANG=C
  80 LC_ALL=C
  81 PAGER=cat
  82 TZ=UTC
  83 export LANG LC_ALL PAGER TZ
  84 EDITOR=:
  85 # A call to "unset" with no arguments causes at least Solaris 10
  86 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
  87 # deriving from the command substitution clustered with the other
  88 # ones.
  89 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
  90         my @env = keys %ENV;
  91         my $ok = join("|", qw(
  92                 TRACE
  93                 DEBUG
  94                 USE_LOOKUP
  95                 TEST
  96                 .*_TEST
  97                 PROVE
  98                 VALGRIND
  99                 UNZIP
 100                 PERF_
 101                 CURL_VERBOSE
 102                 TRACE_CURL
 103         ));
 104         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 105         print join("\n", @vars);
 106 ')
 107 unset XDG_CONFIG_HOME
 108 unset GITPERLLIB
 109 GIT_AUTHOR_EMAIL=author@example.com
 110 GIT_AUTHOR_NAME='A U Thor'
 111 GIT_COMMITTER_EMAIL=committer@example.com
 112 GIT_COMMITTER_NAME='C O Mitter'
 113 GIT_MERGE_VERBOSITY=5
 114 GIT_MERGE_AUTOEDIT=no
 115 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 116 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 117 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 118 export EDITOR
 119
 120 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 121 GIT_TRACE_BARE=1
 122 export GIT_TRACE_BARE
 123
 124 if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
 125 then
 126         GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
 127         export GIT_INDEX_VERSION
 128 fi
 129
 130 # Add libc MALLOC and MALLOC_PERTURB test
 131 # only if we are not executing the test with valgrind
 132 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 133    test -n "$TEST_NO_MALLOC_CHECK"
 134 then
 135         setup_malloc_check () {
 136                 : nothing
 137         }
 138         teardown_malloc_check () {
 139                 : nothing
 140         }
 141 else
 142         setup_malloc_check () {
 143                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 144                 export MALLOC_CHECK_ MALLOC_PERTURB_
 145         }
 146         teardown_malloc_check () {
 147                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 148         }
 149 fi
 150
 151 : ${ASAN_OPTIONS=detect_leaks=0}
 152 export ASAN_OPTIONS
 153
 154 # Protect ourselves from common misconfiguration to export
 155 # CDPATH into the environment
 156 unset CDPATH
 157
 158 unset GREP_OPTIONS
 159 unset UNZIP
 160
 161 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 162 1|2|true)
 163         GIT_TRACE=4
 164         ;;
 165 esac
 166
 167 # Convenience
 168 #
 169 # A regexp to match 5 and 40 hexdigits
 170 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 171 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 172
 173 # Zero SHA-1
 174 _z40=0000000000000000000000000000000000000000
 175
 176 EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
 177 EMPTY_BLOB=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
 178
 179 # Line feed
 180 LF='
 181 '
 182
 183 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 184 # when case-folding filenames
 185 u200c=$(printf '\342\200\214')
 186
 187 export _x05 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB
 188
 189 # Each test should start with something like this, after copyright notices:
 190 #
 191 # test_description='Description of this test...
 192 # This test checks if command xyzzy does the right thing...
 193 # '
 194 # . ./test-lib.sh
 195 test "x$TERM" != "xdumb" && (
 196                 test -t 1 &&
 197                 tput bold >/dev/null 2>&1 &&
 198                 tput setaf 1 >/dev/null 2>&1 &&
 199                 tput sgr0 >/dev/null 2>&1
 200         ) &&
 201         color=t
 202
 203 while test "$#" -ne 0
 204 do
 205         case "$1" in
 206         -d|--d|--de|--deb|--debu|--debug)
 207                 debug=t; shift ;;
 208         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 209                 immediate=t; shift ;;
 210         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 211                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 212         -r)
 213                 shift; test "$#" -ne 0 || {
 214                         echo 'error: -r requires an argument' >&2;
 215                         exit 1;
 216                 }
 217                 run_list=$1; shift ;;
 218         --run=*)
 219                 run_list=${1#--*=}; shift ;;
 220         -h|--h|--he|--hel|--help)
 221                 help=t; shift ;;
 222         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 223                 verbose=t; shift ;;
 224         --verbose-only=*)
 225                 verbose_only=${1#--*=}
 226                 shift ;;
 227         -q|--q|--qu|--qui|--quie|--quiet)
 228                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 229                 # passed without the ok/not ok details is always an error.
 230                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 231         --with-dashes)
 232                 with_dashes=t; shift ;;
 233         --no-color)
 234                 color=; shift ;;
 235         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 236                 valgrind=memcheck
 237                 shift ;;
 238         --valgrind=*)
 239                 valgrind=${1#--*=}
 240                 shift ;;
 241         --valgrind-only=*)
 242                 valgrind_only=${1#--*=}
 243                 shift ;;
 244         --tee)
 245                 shift ;; # was handled already
 246         --root=*)
 247                 root=${1#--*=}
 248                 shift ;;
 249         --chain-lint)
 250                 GIT_TEST_CHAIN_LINT=1
 251                 shift ;;
 252         --no-chain-lint)
 253                 GIT_TEST_CHAIN_LINT=0
 254                 shift ;;
 255         -x)
 256                 trace=t
 257                 verbose=t
 258                 shift ;;
 259         --verbose-log)
 260                 verbose_log=t
 261                 shift ;;
 262         *)
 263                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 264         esac
 265 done
 266
 267 if test -n "$valgrind_only"
 268 then
 269         test -z "$valgrind" && valgrind=memcheck
 270         test -z "$verbose" && verbose_only="$valgrind_only"
 271 elif test -n "$valgrind"
 272 then
 273         verbose=t
 274 fi
 275
 276 if test -n "$color"
 277 then
 278         # Save the color control sequences now rather than run tput
 279         # each time say_color() is called.  This is done for two
 280         # reasons:
 281         #   * TERM will be changed to dumb
 282         #   * HOME will be changed to a temporary directory and tput
 283         #     might need to read ~/.terminfo from the original HOME
 284         #     directory to get the control sequences
 285         # Note:  This approach assumes the control sequences don't end
 286         # in a newline for any terminal of interest (command
 287         # substitutions strip trailing newlines).  Given that most
 288         # (all?) terminals in common use are related to ECMA-48, this
 289         # shouldn't be a problem.
 290         say_color_error=$(tput bold; tput setaf 1) # bold red
 291         say_color_skip=$(tput setaf 4) # blue
 292         say_color_warn=$(tput setaf 3) # brown/yellow
 293         say_color_pass=$(tput setaf 2) # green
 294         say_color_info=$(tput setaf 6) # cyan
 295         say_color_reset=$(tput sgr0)
 296         say_color_="" # no formatting for normal text
 297         say_color () {
 298                 test -z "$1" && test -n "$quiet" && return
 299                 eval "say_color_color=\$say_color_$1"
 300                 shift
 301                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 302         }
 303 else
 304         say_color() {
 305                 test -z "$1" && test -n "$quiet" && return
 306                 shift
 307                 printf "%s\n" "$*"
 308         }
 309 fi
 310
 311 TERM=dumb
 312 export TERM
 313
 314 error () {
 315         say_color error "error: $*"
 316         GIT_EXIT_OK=t
 317         exit 1
 318 }
 319
 320 say () {
 321         say_color info "$*"
 322 }
 323
 324 if test -n "$HARNESS_ACTIVE"
 325 then
 326         if test "$verbose" = t || test -n "$verbose_only"
 327         then
 328                 printf 'Bail out! %s\n' \
 329                  'verbose mode forbidden under TAP harness; try --verbose-log'
 330                 exit 1
 331         fi
 332 fi
 333
 334 test "${test_description}" != "" ||
 335 error "Test script did not set test_description."
 336
 337 if test "$help" = "t"
 338 then
 339         printf '%s\n' "$test_description"
 340         exit 0
 341 fi
 342
 343 exec 5>&1
 344 exec 6<&0
 345 if test "$verbose_log" = "t"
 346 then
 347         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 348 elif test "$verbose" = "t"
 349 then
 350         exec 4>&2 3>&1
 351 else
 352         exec 4>/dev/null 3>/dev/null
 353 fi
 354
 355 # Send any "-x" output directly to stderr to avoid polluting tests
 356 # which capture stderr. We can do this unconditionally since it
 357 # has no effect if tracing isn't turned on.
 358 #
 359 # Note that this sets up the trace fd as soon as we assign the variable, so it
 360 # must come after the creation of descriptor 4 above. Likewise, we must never
 361 # unset this, as it has the side effect of closing descriptor 4, which we
 362 # use to show verbose tests to the user.
 363 #
 364 # Note also that we don't need or want to export it. The tracing is local to
 365 # this shell, and we would not want to influence any shells we exec.
 366 BASH_XTRACEFD=4
 367
 368 test_failure=0
 369 test_count=0
 370 test_fixed=0
 371 test_broken=0
 372 test_success=0
 373
 374 test_external_has_tap=0
 375
 376 die () {
 377         code=$?
 378         if test -n "$GIT_EXIT_OK"
 379         then
 380                 exit $code
 381         else
 382                 echo >&5 "FATAL: Unexpected exit with code $code"
 383                 exit 1
 384         fi
 385 }
 386
 387 GIT_EXIT_OK=
 388 trap 'die' EXIT
 389 trap 'exit $?' INT
 390
 391 # The user-facing functions are loaded from a separate file so that
 392 # test_perf subshells can have them too
 393 . "$TEST_DIRECTORY/test-lib-functions.sh"
 394
 395 # You are not expected to call test_ok_ and test_failure_ directly, use
 396 # the test_expect_* functions instead.
 397
 398 test_ok_ () {
 399         test_success=$(($test_success + 1))
 400         say_color "" "ok $test_count - $@"
 401 }
 402
 403 test_failure_ () {
 404         test_failure=$(($test_failure + 1))
 405         say_color error "not ok $test_count - $1"
 406         shift
 407         printf '%s\n' "$*" | sed -e 's/^/#      /'
 408         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 409 }
 410
 411 test_known_broken_ok_ () {
 412         test_fixed=$(($test_fixed+1))
 413         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 414 }
 415
 416 test_known_broken_failure_ () {
 417         test_broken=$(($test_broken+1))
 418         say_color warn "not ok $test_count - $@ # TODO known breakage"
 419 }
 420
 421 test_debug () {
 422         test "$debug" = "" || eval "$1"
 423 }
 424
 425 match_pattern_list () {
 426         arg="$1"
 427         shift
 428         test -z "$*" && return 1
 429         for pattern_
 430         do
 431                 case "$arg" in
 432                 $pattern_)
 433                         return 0
 434                 esac
 435         done
 436         return 1
 437 }
 438
 439 match_test_selector_list () {
 440         title="$1"
 441         shift
 442         arg="$1"
 443         shift
 444         test -z "$1" && return 0
 445
 446         # Both commas and whitespace are accepted as separators.
 447         OLDIFS=$IFS
 448         IFS='   ,'
 449         set -- $1
 450         IFS=$OLDIFS
 451
 452         # If the first selector is negative we include by default.
 453         include=
 454         case "$1" in
 455                 !*) include=t ;;
 456         esac
 457
 458         for selector
 459         do
 460                 orig_selector=$selector
 461
 462                 positive=t
 463                 case "$selector" in
 464                         !*)
 465                                 positive=
 466                                 selector=${selector##?}
 467                                 ;;
 468                 esac
 469
 470                 test -z "$selector" && continue
 471
 472                 case "$selector" in
 473                         *-*)
 474                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 475                                 then
 476                                         echo "error: $title: invalid non-numeric in range" \
 477                                                 "start: '$orig_selector'" >&2
 478                                         exit 1
 479                                 fi
 480                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 481                                 then
 482                                         echo "error: $title: invalid non-numeric in range" \
 483                                                 "end: '$orig_selector'" >&2
 484                                         exit 1
 485                                 fi
 486                                 ;;
 487                         *)
 488                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 489                                 then
 490                                         echo "error: $title: invalid non-numeric in test" \
 491                                                 "selector: '$orig_selector'" >&2
 492                                         exit 1
 493                                 fi
 494                 esac
 495
 496                 # Short cut for "obvious" cases
 497                 test -z "$include" && test -z "$positive" && continue
 498                 test -n "$include" && test -n "$positive" && continue
 499
 500                 case "$selector" in
 501                         -*)
 502                                 if test $arg -le ${selector#-}
 503                                 then
 504                                         include=$positive
 505                                 fi
 506                                 ;;
 507                         *-)
 508                                 if test $arg -ge ${selector%-}
 509                                 then
 510                                         include=$positive
 511                                 fi
 512                                 ;;
 513                         *-*)
 514                                 if test ${selector%%-*} -le $arg \
 515                                         && test $arg -le ${selector#*-}
 516                                 then
 517                                         include=$positive
 518                                 fi
 519                                 ;;
 520                         *)
 521                                 if test $arg -eq $selector
 522                                 then
 523                                         include=$positive
 524                                 fi
 525                                 ;;
 526                 esac
 527         done
 528
 529         test -n "$include"
 530 }
 531
 532 maybe_teardown_verbose () {
 533         test -z "$verbose_only" && return
 534         exec 4>/dev/null 3>/dev/null
 535         verbose=
 536 }
 537
 538 last_verbose=t
 539 maybe_setup_verbose () {
 540         test -z "$verbose_only" && return
 541         if match_pattern_list $test_count $verbose_only
 542         then
 543                 exec 4>&2 3>&1
 544                 # Emit a delimiting blank line when going from
 545                 # non-verbose to verbose.  Within verbose mode the
 546                 # delimiter is printed by test_expect_*.  The choice
 547                 # of the initial $last_verbose is such that before
 548                 # test 1, we do not print it.
 549                 test -z "$last_verbose" && echo >&3 ""
 550                 verbose=t
 551         else
 552                 exec 4>/dev/null 3>/dev/null
 553                 verbose=
 554         fi
 555         last_verbose=$verbose
 556 }
 557
 558 maybe_teardown_valgrind () {
 559         test -z "$GIT_VALGRIND" && return
 560         GIT_VALGRIND_ENABLED=
 561 }
 562
 563 maybe_setup_valgrind () {
 564         test -z "$GIT_VALGRIND" && return
 565         if test -z "$valgrind_only"
 566         then
 567                 GIT_VALGRIND_ENABLED=t
 568                 return
 569         fi
 570         GIT_VALGRIND_ENABLED=
 571         if match_pattern_list $test_count $valgrind_only
 572         then
 573                 GIT_VALGRIND_ENABLED=t
 574         fi
 575 }
 576
 577 want_trace () {
 578         test "$trace" = t && test "$verbose" = t
 579 }
 580
 581 # This is a separate function because some tests use
 582 # "return" to end a test_expect_success block early
 583 # (and we want to make sure we run any cleanup like
 584 # "set +x").
 585 test_eval_inner_ () {
 586         # Do not add anything extra (including LF) after '$*'
 587         eval "
 588                 want_trace && set -x
 589                 $*"
 590 }
 591
 592 test_eval_ () {
 593         # We run this block with stderr redirected to avoid extra cruft
 594         # during a "-x" trace. Once in "set -x" mode, we cannot prevent
 595         # the shell from printing the "set +x" to turn it off (nor the saving
 596         # of $? before that). But we can make sure that the output goes to
 597         # /dev/null.
 598         #
 599         # The test itself is run with stderr put back to &4 (so either to
 600         # /dev/null, or to the original stderr if --verbose was used).
 601         {
 602                 test_eval_inner_ "$@" </dev/null >&3 2>&4
 603                 test_eval_ret_=$?
 604                 if want_trace
 605                 then
 606                         set +x
 607                         if test "$test_eval_ret_" != 0
 608                         then
 609                                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 610                         fi
 611                 fi
 612         } 2>/dev/null
 613         return $test_eval_ret_
 614 }
 615
 616 test_run_ () {
 617         test_cleanup=:
 618         expecting_failure=$2
 619
 620         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
 621                 # turn off tracing for this test-eval, as it simply creates
 622                 # confusing noise in the "-x" output
 623                 trace_tmp=$trace
 624                 trace=
 625                 # 117 is magic because it is unlikely to match the exit
 626                 # code of other programs
 627                 test_eval_ "(exit 117) && $1"
 628                 if test "$?" != 117; then
 629                         error "bug in the test script: broken &&-chain: $1"
 630                 fi
 631                 trace=$trace_tmp
 632         fi
 633
 634         setup_malloc_check
 635         test_eval_ "$1"
 636         eval_ret=$?
 637         teardown_malloc_check
 638
 639         if test -z "$immediate" || test $eval_ret = 0 ||
 640            test -n "$expecting_failure" && test "$test_cleanup" != ":"
 641         then
 642                 setup_malloc_check
 643                 test_eval_ "$test_cleanup"
 644                 teardown_malloc_check
 645         fi
 646         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 647         then
 648                 echo ""
 649         fi
 650         return "$eval_ret"
 651 }
 652
 653 test_start_ () {
 654         test_count=$(($test_count+1))
 655         maybe_setup_verbose
 656         maybe_setup_valgrind
 657 }
 658
 659 test_finish_ () {
 660         echo >&3 ""
 661         maybe_teardown_valgrind
 662         maybe_teardown_verbose
 663 }
 664
 665 test_skip () {
 666         to_skip=
 667         skipped_reason=
 668         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 669         then
 670                 to_skip=t
 671                 skipped_reason="GIT_SKIP_TESTS"
 672         fi
 673         if test -z "$to_skip" && test -n "$test_prereq" &&
 674            ! test_have_prereq "$test_prereq"
 675         then
 676                 to_skip=t
 677
 678                 of_prereq=
 679                 if test "$missing_prereq" != "$test_prereq"
 680                 then
 681                         of_prereq=" of $test_prereq"
 682                 fi
 683                 skipped_reason="missing $missing_prereq${of_prereq}"
 684         fi
 685         if test -z "$to_skip" && test -n "$run_list" &&
 686                 ! match_test_selector_list '--run' $test_count "$run_list"
 687         then
 688                 to_skip=t
 689                 skipped_reason="--run"
 690         fi
 691
 692         case "$to_skip" in
 693         t)
 694                 say_color skip >&3 "skipping test: $@"
 695                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 696                 : true
 697                 ;;
 698         *)
 699                 false
 700                 ;;
 701         esac
 702 }
 703
 704 # stub; perf-lib overrides it
 705 test_at_end_hook_ () {
 706         :
 707 }
 708
 709 test_done () {
 710         GIT_EXIT_OK=t
 711
 712         if test -z "$HARNESS_ACTIVE"
 713         then
 714                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 715                 mkdir -p "$test_results_dir"
 716                 base=${0##*/}
 717                 test_results_path="$test_results_dir/${base%.sh}.counts"
 718
 719                 cat >"$test_results_path" <<-EOF
 720                 total $test_count
 721                 success $test_success
 722                 fixed $test_fixed
 723                 broken $test_broken
 724                 failed $test_failure
 725
 726                 EOF
 727         fi
 728
 729         if test "$test_fixed" != 0
 730         then
 731                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 732         fi
 733         if test "$test_broken" != 0
 734         then
 735                 say_color warn "# still have $test_broken known breakage(s)"
 736         fi
 737         if test "$test_broken" != 0 || test "$test_fixed" != 0
 738         then
 739                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 740                 msg="remaining $test_remaining test(s)"
 741         else
 742                 test_remaining=$test_count
 743                 msg="$test_count test(s)"
 744         fi
 745         case "$test_failure" in
 746         0)
 747                 # Maybe print SKIP message
 748                 if test -n "$skip_all" && test $test_count -gt 0
 749                 then
 750                         error "Can't use skip_all after running some tests"
 751                 fi
 752                 test -z "$skip_all" || skip_all=" # SKIP $skip_all"
 753
 754                 if test $test_external_has_tap -eq 0
 755                 then
 756                         if test $test_remaining -gt 0
 757                         then
 758                                 say_color pass "# passed all $msg"
 759                         fi
 760                         say "1..$test_count$skip_all"
 761                 fi
 762
 763                 test -d "$remove_trash" &&
 764                 cd "$(dirname "$remove_trash")" &&
 765                 rm -rf "$(basename "$remove_trash")"
 766
 767                 test_at_end_hook_
 768
 769                 exit 0 ;;
 770
 771         *)
 772                 if test $test_external_has_tap -eq 0
 773                 then
 774                         say_color error "# failed $test_failure among $msg"
 775                         say "1..$test_count"
 776                 fi
 777
 778                 exit 1 ;;
 779
 780         esac
 781 }
 782
 783 if test -n "$valgrind"
 784 then
 785         make_symlink () {
 786                 test -h "$2" &&
 787                 test "$1" = "$(readlink "$2")" || {
 788                         # be super paranoid
 789                         if mkdir "$2".lock
 790                         then
 791                                 rm -f "$2" &&
 792                                 ln -s "$1" "$2" &&
 793                                 rm -r "$2".lock
 794                         else
 795                                 while test -d "$2".lock
 796                                 do
 797                                         say "Waiting for lock on $2."
 798                                         sleep 1
 799                                 done
 800                         fi
 801                 }
 802         }
 803
 804         make_valgrind_symlink () {
 805                 # handle only executables, unless they are shell libraries that
 806                 # need to be in the exec-path.
 807                 test -x "$1" ||
 808                 test "# " = "$(head -c 2 <"$1")" ||
 809                 return;
 810
 811                 base=$(basename "$1")
 812                 case "$base" in
 813                 test-*)
 814                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
 815                         ;;
 816                 *)
 817                         symlink_target="$GIT_BUILD_DIR/$base"
 818                         ;;
 819                 esac
 820                 # do not override scripts
 821                 if test -x "$symlink_target" &&
 822                     test ! -d "$symlink_target" &&
 823                     test "#!" != "$(head -c 2 < "$symlink_target")"
 824                 then
 825                         symlink_target=../valgrind.sh
 826                 fi
 827                 case "$base" in
 828                 *.sh|*.perl)
 829                         symlink_target=../unprocessed-script
 830                 esac
 831                 # create the link, or replace it if it is out of date
 832                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 833         }
 834
 835         # override all git executables in TEST_DIRECTORY/..
 836         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 837         mkdir -p "$GIT_VALGRIND"/bin
 838         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
 839         do
 840                 make_valgrind_symlink $file
 841         done
 842         # special-case the mergetools loadables
 843         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 844         OLDIFS=$IFS
 845         IFS=:
 846         for path in $PATH
 847         do
 848                 ls "$path"/git-* 2> /dev/null |
 849                 while read file
 850                 do
 851                         make_valgrind_symlink "$file"
 852                 done
 853         done
 854         IFS=$OLDIFS
 855         PATH=$GIT_VALGRIND/bin:$PATH
 856         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 857         export GIT_VALGRIND
 858         GIT_VALGRIND_MODE="$valgrind"
 859         export GIT_VALGRIND_MODE
 860         GIT_VALGRIND_ENABLED=t
 861         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 862         export GIT_VALGRIND_ENABLED
 863 elif test -n "$GIT_TEST_INSTALLED"
 864 then
 865         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 866         error "Cannot run git from $GIT_TEST_INSTALLED."
 867         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 868         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 869 else # normal case, use ../bin-wrappers only unless $with_dashes:
 870         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 871         if ! test -x "$git_bin_dir/git"
 872         then
 873                 if test -z "$with_dashes"
 874                 then
 875                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 876                 fi
 877                 with_dashes=t
 878         fi
 879         PATH="$git_bin_dir:$PATH"
 880         GIT_EXEC_PATH=$GIT_BUILD_DIR
 881         if test -n "$with_dashes"
 882         then
 883                 PATH="$GIT_BUILD_DIR:$PATH"
 884         fi
 885 fi
 886 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 887 GIT_CONFIG_NOSYSTEM=1
 888 GIT_ATTR_NOSYSTEM=1
 889 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 890
 891 if test -z "$GIT_TEST_CMP"
 892 then
 893         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 894         then
 895                 GIT_TEST_CMP="$DIFF -c"
 896         else
 897                 GIT_TEST_CMP="$DIFF -u"
 898         fi
 899 fi
 900
 901 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 902 export GITPERLLIB
 903 test -d "$GIT_BUILD_DIR"/templates/blt || {
 904         error "You haven't built things yet, have you?"
 905 }
 906
 907 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-chmtime
 908 then
 909         echo >&2 'You need to build test-chmtime:'
 910         echo >&2 'Run "make t/helper/test-chmtime" in the source (toplevel) directory'
 911         exit 1
 912 fi
 913
 914 # Test repository
 915 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 916 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 917 case "$TRASH_DIRECTORY" in
 918 /*) ;; # absolute path is good
 919  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 920 esac
 921 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 922 rm -fr "$TRASH_DIRECTORY" || {
 923         GIT_EXIT_OK=t
 924         echo >&5 "FATAL: Cannot prepare test area"
 925         exit 1
 926 }
 927
 928 HOME="$TRASH_DIRECTORY"
 929 GNUPGHOME="$HOME/gnupg-home-not-used"
 930 export HOME GNUPGHOME
 931
 932 if test -z "$TEST_NO_CREATE_REPO"
 933 then
 934         test_create_repo "$TRASH_DIRECTORY"
 935 else
 936         mkdir -p "$TRASH_DIRECTORY"
 937 fi
 938 # Use -P to resolve symlinks in our working directory so that the cwd
 939 # in subprocesses like git equals our $PWD (for pathname comparisons).
 940 cd -P "$TRASH_DIRECTORY" || exit 1
 941
 942 this_test=${0##*/}
 943 this_test=${this_test%%-*}
 944 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 945 then
 946         say_color info >&3 "skipping test $this_test altogether"
 947         skip_all="skip all tests in $this_test"
 948         test_done
 949 fi
 950
 951 # Provide an implementation of the 'yes' utility
 952 yes () {
 953         if test $# = 0
 954         then
 955                 y=y
 956         else
 957                 y="$*"
 958         fi
 959
 960         i=0
 961         while test $i -lt 99
 962         do
 963                 echo "$y"
 964                 i=$(($i+1))
 965         done
 966 }
 967
 968 # Fix some commands on Windows
 969 uname_s=$(uname -s)
 970 case $uname_s in
 971 *MINGW*)
 972         # Windows has its own (incompatible) sort and find
 973         sort () {
 974                 /usr/bin/sort "$@"
 975         }
 976         find () {
 977                 /usr/bin/find "$@"
 978         }
 979         sum () {
 980                 md5sum "$@"
 981         }
 982         # git sees Windows-style pwd
 983         pwd () {
 984                 builtin pwd -W
 985         }
 986         # no POSIX permissions
 987         # backslashes in pathspec are converted to '/'
 988         # exec does not inherit the PID
 989         test_set_prereq MINGW
 990         test_set_prereq NATIVE_CRLF
 991         test_set_prereq SED_STRIPS_CR
 992         test_set_prereq GREP_STRIPS_CR
 993         GIT_TEST_CMP=mingw_test_cmp
 994         ;;
 995 *CYGWIN*)
 996         test_set_prereq POSIXPERM
 997         test_set_prereq EXECKEEPSPID
 998         test_set_prereq CYGWIN
 999         test_set_prereq SED_STRIPS_CR
1000         test_set_prereq GREP_STRIPS_CR
1001         ;;
1002 *)
1003         test_set_prereq POSIXPERM
1004         test_set_prereq BSLASHPSPEC
1005         test_set_prereq EXECKEEPSPID
1006         ;;
1007 esac
1008
1009 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1010 test -z "$NO_PERL" && test_set_prereq PERL
1011 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1012 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
1013 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1014
1015 # Can we rely on git's output in the C locale?
1016 if test -n "$GETTEXT_POISON"
1017 then
1018         GIT_GETTEXT_POISON=YesPlease
1019         export GIT_GETTEXT_POISON
1020         test_set_prereq GETTEXT_POISON
1021 else
1022         test_set_prereq C_LOCALE_OUTPUT
1023 fi
1024
1025 # Use this instead of test_cmp to compare files that contain expected and
1026 # actual output from git commands that can be translated.  When running
1027 # under GETTEXT_POISON this pretends that the command produced expected
1028 # results.
1029 test_i18ncmp () {
1030         test -n "$GETTEXT_POISON" || test_cmp "$@"
1031 }
1032
1033 # Use this instead of "grep expected-string actual" to see if the
1034 # output from a git command that can be translated either contains an
1035 # expected string, or does not contain an unwanted one.  When running
1036 # under GETTEXT_POISON this pretends that the command produced expected
1037 # results.
1038 test_i18ngrep () {
1039         if test -n "$GETTEXT_POISON"
1040         then
1041             : # pretend success
1042         elif test "x!" = "x$1"
1043         then
1044                 shift
1045                 ! grep "$@"
1046         else
1047                 grep "$@"
1048         fi
1049 }
1050
1051 test_lazy_prereq PIPE '
1052         # test whether the filesystem supports FIFOs
1053         case $(uname -s) in
1054         CYGWIN*|MINGW*)
1055                 false
1056                 ;;
1057         *)
1058                 rm -f testfifo && mkfifo testfifo
1059                 ;;
1060         esac
1061 '
1062
1063 test_lazy_prereq SYMLINKS '
1064         # test whether the filesystem supports symbolic links
1065         ln -s x y && test -h y
1066 '
1067
1068 test_lazy_prereq FILEMODE '
1069         test "$(git config --bool core.filemode)" = true
1070 '
1071
1072 test_lazy_prereq CASE_INSENSITIVE_FS '
1073         echo good >CamelCase &&
1074         echo bad >camelcase &&
1075         test "$(cat CamelCase)" != good
1076 '
1077
1078 test_lazy_prereq UTF8_NFD_TO_NFC '
1079         # check whether FS converts nfd unicode to nfc
1080         auml=$(printf "\303\244")
1081         aumlcdiar=$(printf "\141\314\210")
1082         >"$auml" &&
1083         case "$(echo *)" in
1084         "$aumlcdiar")
1085                 true ;;
1086         *)
1087                 false ;;
1088         esac
1089 '
1090
1091 test_lazy_prereq AUTOIDENT '
1092         sane_unset GIT_AUTHOR_NAME &&
1093         sane_unset GIT_AUTHOR_EMAIL &&
1094         git var GIT_AUTHOR_IDENT
1095 '
1096
1097 test_lazy_prereq EXPENSIVE '
1098         test -n "$GIT_TEST_LONG"
1099 '
1100
1101 test_lazy_prereq USR_BIN_TIME '
1102         test -x /usr/bin/time
1103 '
1104
1105 test_lazy_prereq NOT_ROOT '
1106         uid=$(id -u) &&
1107         test "$uid" != 0
1108 '
1109
1110 test_lazy_prereq JGIT '
1111         type jgit
1112 '
1113
1114 # SANITY is about "can you correctly predict what the filesystem would
1115 # do by only looking at the permission bits of the files and
1116 # directories?"  A typical example of !SANITY is running the test
1117 # suite as root, where a test may expect "chmod -r file && cat file"
1118 # to fail because file is supposed to be unreadable after a successful
1119 # chmod.  In an environment (i.e. combination of what filesystem is
1120 # being used and who is running the tests) that lacks SANITY, you may
1121 # be able to delete or create a file when the containing directory
1122 # doesn't have write permissions, or access a file even if the
1123 # containing directory doesn't have read or execute permissions.
1124
1125 test_lazy_prereq SANITY '
1126         mkdir SANETESTD.1 SANETESTD.2 &&
1127
1128         chmod +w SANETESTD.1 SANETESTD.2 &&
1129         >SANETESTD.1/x 2>SANETESTD.2/x &&
1130         chmod -w SANETESTD.1 &&
1131         chmod -r SANETESTD.1/x &&
1132         chmod -rx SANETESTD.2 ||
1133         error "bug in test sript: cannot prepare SANETESTD"
1134
1135         ! test -r SANETESTD.1/x &&
1136         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1137         status=$?
1138
1139         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1140         rm -rf SANETESTD.1 SANETESTD.2 ||
1141         error "bug in test sript: cannot clean SANETESTD"
1142         return $status
1143 '
1144
1145 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1146 GIT_UNZIP=${GIT_UNZIP:-unzip}
1147 test_lazy_prereq UNZIP '
1148         "$GIT_UNZIP" -v
1149         test $? -ne 127
1150 '
1151
1152 run_with_limited_cmdline () {
1153         (ulimit -s 128 && "$@")
1154 }
1155
1156 test_lazy_prereq CMDLINE_LIMIT 'run_with_limited_cmdline true'
1157
1158 build_option () {
1159         git version --build-options |
1160         sed -ne "s/^$1: //p"
1161 }
1162
1163 test_lazy_prereq LONG_IS_64BIT '
1164         test 8 -le "$(build_option sizeof-long)"
1165 '