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 : ${LSAN_OPTIONS=abort_on_error=1}
  50 export LSAN_OPTIONS
  51
  52 ################################################################
  53 # It appears that people try to run tests without building...
  54 "$GIT_BUILD_DIR/git" >/dev/null
  55 if test $? != 1
  56 then
  57         echo >&2 'error: you do not seem to have built git yet.'
  58         exit 1
  59 fi
  60
  61 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
  62 export PERL_PATH SHELL_PATH
  63
  64 # if --tee was passed, write the output not only to the terminal, but
  65 # additionally to the file test-results/$BASENAME.out, too.
  66 case "$GIT_TEST_TEE_STARTED, $* " in
  67 done,*)
  68         # do not redirect again
  69         ;;
  70 *' --tee '*|*' --va'*|*' --verbose-log '*)
  71         mkdir -p "$TEST_OUTPUT_DIRECTORY/test-results"
  72         BASE="$TEST_OUTPUT_DIRECTORY/test-results/$(basename "$0" .sh)"
  73
  74         # Make this filename available to the sub-process in case it is using
  75         # --verbose-log.
  76         GIT_TEST_TEE_OUTPUT_FILE=$BASE.out
  77         export GIT_TEST_TEE_OUTPUT_FILE
  78
  79         # Truncate before calling "tee -a" to get rid of the results
  80         # from any previous runs.
  81         >"$GIT_TEST_TEE_OUTPUT_FILE"
  82
  83         (GIT_TEST_TEE_STARTED=done ${TEST_SHELL_PATH} "$0" "$@" 2>&1;
  84          echo $? >"$BASE.exit") | tee -a "$GIT_TEST_TEE_OUTPUT_FILE"
  85         test "$(cat "$BASE.exit")" = 0
  86         exit
  87         ;;
  88 esac
  89
  90 # For repeatability, reset the environment to known value.
  91 # TERM is sanitized below, after saving color control sequences.
  92 LANG=C
  93 LC_ALL=C
  94 PAGER=cat
  95 TZ=UTC
  96 export LANG LC_ALL PAGER TZ
  97 EDITOR=:
  98 # A call to "unset" with no arguments causes at least Solaris 10
  99 # /usr/xpg4/bin/sh and /bin/ksh to bail out.  So keep the unsets
 100 # deriving from the command substitution clustered with the other
 101 # ones.
 102 unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
 103         my @env = keys %ENV;
 104         my $ok = join("|", qw(
 105                 TRACE
 106                 DEBUG
 107                 TEST
 108                 .*_TEST
 109                 PROVE
 110                 VALGRIND
 111                 UNZIP
 112                 PERF_
 113                 CURL_VERBOSE
 114                 TRACE_CURL
 115         ));
 116         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 117         print join("\n", @vars);
 118 ')
 119 unset XDG_CACHE_HOME
 120 unset XDG_CONFIG_HOME
 121 unset GITPERLLIB
 122 GIT_AUTHOR_EMAIL=author@example.com
 123 GIT_AUTHOR_NAME='A U Thor'
 124 GIT_COMMITTER_EMAIL=committer@example.com
 125 GIT_COMMITTER_NAME='C O Mitter'
 126 GIT_MERGE_VERBOSITY=5
 127 GIT_MERGE_AUTOEDIT=no
 128 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 129 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 130 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 131 export EDITOR
 132
 133 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 134 GIT_TRACE_BARE=1
 135 export GIT_TRACE_BARE
 136
 137 if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
 138 then
 139         GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
 140         export GIT_INDEX_VERSION
 141 fi
 142
 143 # Add libc MALLOC and MALLOC_PERTURB test
 144 # only if we are not executing the test with valgrind
 145 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 146    test -n "$TEST_NO_MALLOC_CHECK"
 147 then
 148         setup_malloc_check () {
 149                 : nothing
 150         }
 151         teardown_malloc_check () {
 152                 : nothing
 153         }
 154 else
 155         setup_malloc_check () {
 156                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 157                 export MALLOC_CHECK_ MALLOC_PERTURB_
 158         }
 159         teardown_malloc_check () {
 160                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 161         }
 162 fi
 163
 164 # Protect ourselves from common misconfiguration to export
 165 # CDPATH into the environment
 166 unset CDPATH
 167
 168 unset GREP_OPTIONS
 169 unset UNZIP
 170
 171 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 172 1|2|true)
 173         GIT_TRACE=4
 174         ;;
 175 esac
 176
 177 # Convenience
 178 #
 179 # A regexp to match 5, 35 and 40 hexdigits
 180 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 181 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 182 _x40="$_x35$_x05"
 183
 184 # Zero SHA-1
 185 _z40=0000000000000000000000000000000000000000
 186
 187 EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
 188 EMPTY_BLOB=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
 189
 190 # Line feed
 191 LF='
 192 '
 193
 194 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 195 # when case-folding filenames
 196 u200c=$(printf '\342\200\214')
 197
 198 export _x05 _x35 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB
 199
 200 # Each test should start with something like this, after copyright notices:
 201 #
 202 # test_description='Description of this test...
 203 # This test checks if command xyzzy does the right thing...
 204 # '
 205 # . ./test-lib.sh
 206 test "x$TERM" != "xdumb" && (
 207                 test -t 1 &&
 208                 tput bold >/dev/null 2>&1 &&
 209                 tput setaf 1 >/dev/null 2>&1 &&
 210                 tput sgr0 >/dev/null 2>&1
 211         ) &&
 212         color=t
 213
 214 while test "$#" -ne 0
 215 do
 216         case "$1" in
 217         -d|--d|--de|--deb|--debu|--debug)
 218                 debug=t; shift ;;
 219         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 220                 immediate=t; shift ;;
 221         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 222                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 223         -r)
 224                 shift; test "$#" -ne 0 || {
 225                         echo 'error: -r requires an argument' >&2;
 226                         exit 1;
 227                 }
 228                 run_list=$1; shift ;;
 229         --run=*)
 230                 run_list=${1#--*=}; shift ;;
 231         -h|--h|--he|--hel|--help)
 232                 help=t; shift ;;
 233         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 234                 verbose=t; shift ;;
 235         --verbose-only=*)
 236                 verbose_only=${1#--*=}
 237                 shift ;;
 238         -q|--q|--qu|--qui|--quie|--quiet)
 239                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 240                 # passed without the ok/not ok details is always an error.
 241                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 242         --with-dashes)
 243                 with_dashes=t; shift ;;
 244         --no-color)
 245                 color=; shift ;;
 246         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 247                 valgrind=memcheck
 248                 shift ;;
 249         --valgrind=*)
 250                 valgrind=${1#--*=}
 251                 shift ;;
 252         --valgrind-only=*)
 253                 valgrind_only=${1#--*=}
 254                 shift ;;
 255         --tee)
 256                 shift ;; # was handled already
 257         --root=*)
 258                 root=${1#--*=}
 259                 shift ;;
 260         --chain-lint)
 261                 GIT_TEST_CHAIN_LINT=1
 262                 shift ;;
 263         --no-chain-lint)
 264                 GIT_TEST_CHAIN_LINT=0
 265                 shift ;;
 266         -x)
 267                 # Some test scripts can't be reliably traced  with '-x',
 268                 # unless the test is run with a Bash version supporting
 269                 # BASH_XTRACEFD (introduced in Bash v4.1).  Check whether
 270                 # this test is marked as such, and ignore '-x' if it
 271                 # isn't executed with a suitable Bash version.
 272                 if test -z "$test_untraceable" || {
 273                      test -n "$BASH_VERSION" && {
 274                        test ${BASH_VERSINFO[0]} -gt 4 || {
 275                          test ${BASH_VERSINFO[0]} -eq 4 &&
 276                          test ${BASH_VERSINFO[1]} -ge 1
 277                        }
 278                      }
 279                    }
 280                 then
 281                         trace=t
 282                 else
 283                         echo >&2 "warning: ignoring -x; '$0' is untraceable without BASH_XTRACEFD"
 284                 fi
 285                 shift ;;
 286         --verbose-log)
 287                 verbose_log=t
 288                 shift ;;
 289         *)
 290                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 291         esac
 292 done
 293
 294 if test -n "$valgrind_only"
 295 then
 296         test -z "$valgrind" && valgrind=memcheck
 297         test -z "$verbose" && verbose_only="$valgrind_only"
 298 elif test -n "$valgrind"
 299 then
 300         test -z "$verbose_log" && verbose=t
 301 fi
 302
 303 if test -n "$trace" && test -z "$verbose_log"
 304 then
 305         verbose=t
 306 fi
 307
 308 if test -n "$color"
 309 then
 310         # Save the color control sequences now rather than run tput
 311         # each time say_color() is called.  This is done for two
 312         # reasons:
 313         #   * TERM will be changed to dumb
 314         #   * HOME will be changed to a temporary directory and tput
 315         #     might need to read ~/.terminfo from the original HOME
 316         #     directory to get the control sequences
 317         # Note:  This approach assumes the control sequences don't end
 318         # in a newline for any terminal of interest (command
 319         # substitutions strip trailing newlines).  Given that most
 320         # (all?) terminals in common use are related to ECMA-48, this
 321         # shouldn't be a problem.
 322         say_color_error=$(tput bold; tput setaf 1) # bold red
 323         say_color_skip=$(tput setaf 4) # blue
 324         say_color_warn=$(tput setaf 3) # brown/yellow
 325         say_color_pass=$(tput setaf 2) # green
 326         say_color_info=$(tput setaf 6) # cyan
 327         say_color_reset=$(tput sgr0)
 328         say_color_="" # no formatting for normal text
 329         say_color () {
 330                 test -z "$1" && test -n "$quiet" && return
 331                 eval "say_color_color=\$say_color_$1"
 332                 shift
 333                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 334         }
 335 else
 336         say_color() {
 337                 test -z "$1" && test -n "$quiet" && return
 338                 shift
 339                 printf "%s\n" "$*"
 340         }
 341 fi
 342
 343 TERM=dumb
 344 export TERM
 345
 346 error () {
 347         say_color error "error: $*"
 348         GIT_EXIT_OK=t
 349         exit 1
 350 }
 351
 352 say () {
 353         say_color info "$*"
 354 }
 355
 356 if test -n "$HARNESS_ACTIVE"
 357 then
 358         if test "$verbose" = t || test -n "$verbose_only"
 359         then
 360                 printf 'Bail out! %s\n' \
 361                  'verbose mode forbidden under TAP harness; try --verbose-log'
 362                 exit 1
 363         fi
 364 fi
 365
 366 test "${test_description}" != "" ||
 367 error "Test script did not set test_description."
 368
 369 if test "$help" = "t"
 370 then
 371         printf '%s\n' "$test_description"
 372         exit 0
 373 fi
 374
 375 exec 5>&1
 376 exec 6<&0
 377 exec 7>&2
 378 if test "$verbose_log" = "t"
 379 then
 380         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 381 elif test "$verbose" = "t"
 382 then
 383         exec 4>&2 3>&1
 384 else
 385         exec 4>/dev/null 3>/dev/null
 386 fi
 387
 388 # Send any "-x" output directly to stderr to avoid polluting tests
 389 # which capture stderr. We can do this unconditionally since it
 390 # has no effect if tracing isn't turned on.
 391 #
 392 # Note that this sets up the trace fd as soon as we assign the variable, so it
 393 # must come after the creation of descriptor 4 above. Likewise, we must never
 394 # unset this, as it has the side effect of closing descriptor 4, which we
 395 # use to show verbose tests to the user.
 396 #
 397 # Note also that we don't need or want to export it. The tracing is local to
 398 # this shell, and we would not want to influence any shells we exec.
 399 BASH_XTRACEFD=4
 400
 401 test_failure=0
 402 test_count=0
 403 test_fixed=0
 404 test_broken=0
 405 test_success=0
 406
 407 test_external_has_tap=0
 408
 409 die () {
 410         code=$?
 411         if test -n "$GIT_EXIT_OK"
 412         then
 413                 exit $code
 414         else
 415                 echo >&5 "FATAL: Unexpected exit with code $code"
 416                 exit 1
 417         fi
 418 }
 419
 420 GIT_EXIT_OK=
 421 trap 'die' EXIT
 422 trap 'exit $?' INT
 423
 424 # The user-facing functions are loaded from a separate file so that
 425 # test_perf subshells can have them too
 426 . "$TEST_DIRECTORY/test-lib-functions.sh"
 427
 428 # You are not expected to call test_ok_ and test_failure_ directly, use
 429 # the test_expect_* functions instead.
 430
 431 test_ok_ () {
 432         test_success=$(($test_success + 1))
 433         say_color "" "ok $test_count - $@"
 434 }
 435
 436 test_failure_ () {
 437         test_failure=$(($test_failure + 1))
 438         say_color error "not ok $test_count - $1"
 439         shift
 440         printf '%s\n' "$*" | sed -e 's/^/#      /'
 441         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 442 }
 443
 444 test_known_broken_ok_ () {
 445         test_fixed=$(($test_fixed+1))
 446         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 447 }
 448
 449 test_known_broken_failure_ () {
 450         test_broken=$(($test_broken+1))
 451         say_color warn "not ok $test_count - $@ # TODO known breakage"
 452 }
 453
 454 test_debug () {
 455         test "$debug" = "" || eval "$1"
 456 }
 457
 458 match_pattern_list () {
 459         arg="$1"
 460         shift
 461         test -z "$*" && return 1
 462         for pattern_
 463         do
 464                 case "$arg" in
 465                 $pattern_)
 466                         return 0
 467                 esac
 468         done
 469         return 1
 470 }
 471
 472 match_test_selector_list () {
 473         title="$1"
 474         shift
 475         arg="$1"
 476         shift
 477         test -z "$1" && return 0
 478
 479         # Both commas and whitespace are accepted as separators.
 480         OLDIFS=$IFS
 481         IFS='   ,'
 482         set -- $1
 483         IFS=$OLDIFS
 484
 485         # If the first selector is negative we include by default.
 486         include=
 487         case "$1" in
 488                 !*) include=t ;;
 489         esac
 490
 491         for selector
 492         do
 493                 orig_selector=$selector
 494
 495                 positive=t
 496                 case "$selector" in
 497                         !*)
 498                                 positive=
 499                                 selector=${selector##?}
 500                                 ;;
 501                 esac
 502
 503                 test -z "$selector" && continue
 504
 505                 case "$selector" in
 506                         *-*)
 507                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 508                                 then
 509                                         echo "error: $title: invalid non-numeric in range" \
 510                                                 "start: '$orig_selector'" >&2
 511                                         exit 1
 512                                 fi
 513                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 514                                 then
 515                                         echo "error: $title: invalid non-numeric in range" \
 516                                                 "end: '$orig_selector'" >&2
 517                                         exit 1
 518                                 fi
 519                                 ;;
 520                         *)
 521                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 522                                 then
 523                                         echo "error: $title: invalid non-numeric in test" \
 524                                                 "selector: '$orig_selector'" >&2
 525                                         exit 1
 526                                 fi
 527                 esac
 528
 529                 # Short cut for "obvious" cases
 530                 test -z "$include" && test -z "$positive" && continue
 531                 test -n "$include" && test -n "$positive" && continue
 532
 533                 case "$selector" in
 534                         -*)
 535                                 if test $arg -le ${selector#-}
 536                                 then
 537                                         include=$positive
 538                                 fi
 539                                 ;;
 540                         *-)
 541                                 if test $arg -ge ${selector%-}
 542                                 then
 543                                         include=$positive
 544                                 fi
 545                                 ;;
 546                         *-*)
 547                                 if test ${selector%%-*} -le $arg \
 548                                         && test $arg -le ${selector#*-}
 549                                 then
 550                                         include=$positive
 551                                 fi
 552                                 ;;
 553                         *)
 554                                 if test $arg -eq $selector
 555                                 then
 556                                         include=$positive
 557                                 fi
 558                                 ;;
 559                 esac
 560         done
 561
 562         test -n "$include"
 563 }
 564
 565 maybe_teardown_verbose () {
 566         test -z "$verbose_only" && return
 567         exec 4>/dev/null 3>/dev/null
 568         verbose=
 569 }
 570
 571 last_verbose=t
 572 maybe_setup_verbose () {
 573         test -z "$verbose_only" && return
 574         if match_pattern_list $test_count $verbose_only
 575         then
 576                 exec 4>&2 3>&1
 577                 # Emit a delimiting blank line when going from
 578                 # non-verbose to verbose.  Within verbose mode the
 579                 # delimiter is printed by test_expect_*.  The choice
 580                 # of the initial $last_verbose is such that before
 581                 # test 1, we do not print it.
 582                 test -z "$last_verbose" && echo >&3 ""
 583                 verbose=t
 584         else
 585                 exec 4>/dev/null 3>/dev/null
 586                 verbose=
 587         fi
 588         last_verbose=$verbose
 589 }
 590
 591 maybe_teardown_valgrind () {
 592         test -z "$GIT_VALGRIND" && return
 593         GIT_VALGRIND_ENABLED=
 594 }
 595
 596 maybe_setup_valgrind () {
 597         test -z "$GIT_VALGRIND" && return
 598         if test -z "$valgrind_only"
 599         then
 600                 GIT_VALGRIND_ENABLED=t
 601                 return
 602         fi
 603         GIT_VALGRIND_ENABLED=
 604         if match_pattern_list $test_count $valgrind_only
 605         then
 606                 GIT_VALGRIND_ENABLED=t
 607         fi
 608 }
 609
 610 want_trace () {
 611         test "$trace" = t && {
 612                 test "$verbose" = t || test "$verbose_log" = t
 613         }
 614 }
 615
 616 # This is a separate function because some tests use
 617 # "return" to end a test_expect_success block early
 618 # (and we want to make sure we run any cleanup like
 619 # "set +x").
 620 test_eval_inner_ () {
 621         # Do not add anything extra (including LF) after '$*'
 622         eval "
 623                 want_trace && set -x
 624                 $*"
 625 }
 626
 627 test_eval_ () {
 628         # If "-x" tracing is in effect, then we want to avoid polluting stderr
 629         # with non-test commands. But once in "set -x" mode, we cannot prevent
 630         # the shell from printing the "set +x" to turn it off (nor the saving
 631         # of $? before that). But we can make sure that the output goes to
 632         # /dev/null.
 633         #
 634         # There are a few subtleties here:
 635         #
 636         #   - we have to redirect descriptor 4 in addition to 2, to cover
 637         #     BASH_XTRACEFD
 638         #
 639         #   - the actual eval has to come before the redirection block (since
 640         #     it needs to see descriptor 4 to set up its stderr)
 641         #
 642         #   - likewise, any error message we print must be outside the block to
 643         #     access descriptor 4
 644         #
 645         #   - checking $? has to come immediately after the eval, but it must
 646         #     be _inside_ the block to avoid polluting the "set -x" output
 647         #
 648
 649         test_eval_inner_ "$@" </dev/null >&3 2>&4
 650         {
 651                 test_eval_ret_=$?
 652                 if want_trace
 653                 then
 654                         set +x
 655                 fi
 656         } 2>/dev/null 4>&2
 657
 658         if test "$test_eval_ret_" != 0 && want_trace
 659         then
 660                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 661         fi
 662         return $test_eval_ret_
 663 }
 664
 665 test_run_ () {
 666         test_cleanup=:
 667         expecting_failure=$2
 668
 669         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
 670                 # turn off tracing for this test-eval, as it simply creates
 671                 # confusing noise in the "-x" output
 672                 trace_tmp=$trace
 673                 trace=
 674                 # 117 is magic because it is unlikely to match the exit
 675                 # code of other programs
 676                 if test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
 677                 then
 678                         error "bug in the test script: broken &&-chain or run-away HERE-DOC: $1"
 679                 fi
 680                 trace=$trace_tmp
 681         fi
 682
 683         setup_malloc_check
 684         test_eval_ "$1"
 685         eval_ret=$?
 686         teardown_malloc_check
 687
 688         if test -z "$immediate" || test $eval_ret = 0 ||
 689            test -n "$expecting_failure" && test "$test_cleanup" != ":"
 690         then
 691                 setup_malloc_check
 692                 test_eval_ "$test_cleanup"
 693                 teardown_malloc_check
 694         fi
 695         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 696         then
 697                 echo ""
 698         fi
 699         return "$eval_ret"
 700 }
 701
 702 test_start_ () {
 703         test_count=$(($test_count+1))
 704         maybe_setup_verbose
 705         maybe_setup_valgrind
 706 }
 707
 708 test_finish_ () {
 709         echo >&3 ""
 710         maybe_teardown_valgrind
 711         maybe_teardown_verbose
 712 }
 713
 714 test_skip () {
 715         to_skip=
 716         skipped_reason=
 717         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 718         then
 719                 to_skip=t
 720                 skipped_reason="GIT_SKIP_TESTS"
 721         fi
 722         if test -z "$to_skip" && test -n "$test_prereq" &&
 723            ! test_have_prereq "$test_prereq"
 724         then
 725                 to_skip=t
 726
 727                 of_prereq=
 728                 if test "$missing_prereq" != "$test_prereq"
 729                 then
 730                         of_prereq=" of $test_prereq"
 731                 fi
 732                 skipped_reason="missing $missing_prereq${of_prereq}"
 733         fi
 734         if test -z "$to_skip" && test -n "$run_list" &&
 735                 ! match_test_selector_list '--run' $test_count "$run_list"
 736         then
 737                 to_skip=t
 738                 skipped_reason="--run"
 739         fi
 740
 741         case "$to_skip" in
 742         t)
 743                 say_color skip >&3 "skipping test: $@"
 744                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 745                 : true
 746                 ;;
 747         *)
 748                 false
 749                 ;;
 750         esac
 751 }
 752
 753 # stub; perf-lib overrides it
 754 test_at_end_hook_ () {
 755         :
 756 }
 757
 758 test_done () {
 759         GIT_EXIT_OK=t
 760
 761         if test -z "$HARNESS_ACTIVE"
 762         then
 763                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 764                 mkdir -p "$test_results_dir"
 765                 base=${0##*/}
 766                 test_results_path="$test_results_dir/${base%.sh}.counts"
 767
 768                 cat >"$test_results_path" <<-EOF
 769                 total $test_count
 770                 success $test_success
 771                 fixed $test_fixed
 772                 broken $test_broken
 773                 failed $test_failure
 774
 775                 EOF
 776         fi
 777
 778         if test "$test_fixed" != 0
 779         then
 780                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 781         fi
 782         if test "$test_broken" != 0
 783         then
 784                 say_color warn "# still have $test_broken known breakage(s)"
 785         fi
 786         if test "$test_broken" != 0 || test "$test_fixed" != 0
 787         then
 788                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 789                 msg="remaining $test_remaining test(s)"
 790         else
 791                 test_remaining=$test_count
 792                 msg="$test_count test(s)"
 793         fi
 794         case "$test_failure" in
 795         0)
 796                 if test $test_external_has_tap -eq 0
 797                 then
 798                         if test $test_remaining -gt 0
 799                         then
 800                                 say_color pass "# passed all $msg"
 801                         fi
 802
 803                         # Maybe print SKIP message
 804                         test -z "$skip_all" || skip_all="# SKIP $skip_all"
 805                         case "$test_count" in
 806                         0)
 807                                 say "1..$test_count${skip_all:+ $skip_all}"
 808                                 ;;
 809                         *)
 810                                 test -z "$skip_all" ||
 811                                 say_color warn "$skip_all"
 812                                 say "1..$test_count"
 813                                 ;;
 814                         esac
 815                 fi
 816
 817                 if test -z "$debug"
 818                 then
 819                         test -d "$TRASH_DIRECTORY" ||
 820                         error "Tests passed but trash directory already removed before test cleanup; aborting"
 821
 822                         cd "$TRASH_DIRECTORY/.." &&
 823                         rm -fr "$TRASH_DIRECTORY" ||
 824                         error "Tests passed but test cleanup failed; aborting"
 825                 fi
 826                 test_at_end_hook_
 827
 828                 exit 0 ;;
 829
 830         *)
 831                 if test $test_external_has_tap -eq 0
 832                 then
 833                         say_color error "# failed $test_failure among $msg"
 834                         say "1..$test_count"
 835                 fi
 836
 837                 exit 1 ;;
 838
 839         esac
 840 }
 841
 842 if test -n "$valgrind"
 843 then
 844         make_symlink () {
 845                 test -h "$2" &&
 846                 test "$1" = "$(readlink "$2")" || {
 847                         # be super paranoid
 848                         if mkdir "$2".lock
 849                         then
 850                                 rm -f "$2" &&
 851                                 ln -s "$1" "$2" &&
 852                                 rm -r "$2".lock
 853                         else
 854                                 while test -d "$2".lock
 855                                 do
 856                                         say "Waiting for lock on $2."
 857                                         sleep 1
 858                                 done
 859                         fi
 860                 }
 861         }
 862
 863         make_valgrind_symlink () {
 864                 # handle only executables, unless they are shell libraries that
 865                 # need to be in the exec-path.
 866                 test -x "$1" ||
 867                 test "# " = "$(head -c 2 <"$1")" ||
 868                 return;
 869
 870                 base=$(basename "$1")
 871                 case "$base" in
 872                 test-*)
 873                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
 874                         ;;
 875                 *)
 876                         symlink_target="$GIT_BUILD_DIR/$base"
 877                         ;;
 878                 esac
 879                 # do not override scripts
 880                 if test -x "$symlink_target" &&
 881                     test ! -d "$symlink_target" &&
 882                     test "#!" != "$(head -c 2 < "$symlink_target")"
 883                 then
 884                         symlink_target=../valgrind.sh
 885                 fi
 886                 case "$base" in
 887                 *.sh|*.perl)
 888                         symlink_target=../unprocessed-script
 889                 esac
 890                 # create the link, or replace it if it is out of date
 891                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 892         }
 893
 894         # override all git executables in TEST_DIRECTORY/..
 895         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 896         mkdir -p "$GIT_VALGRIND"/bin
 897         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
 898         do
 899                 make_valgrind_symlink $file
 900         done
 901         # special-case the mergetools loadables
 902         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 903         OLDIFS=$IFS
 904         IFS=:
 905         for path in $PATH
 906         do
 907                 ls "$path"/git-* 2> /dev/null |
 908                 while read file
 909                 do
 910                         make_valgrind_symlink "$file"
 911                 done
 912         done
 913         IFS=$OLDIFS
 914         PATH=$GIT_VALGRIND/bin:$PATH
 915         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 916         export GIT_VALGRIND
 917         GIT_VALGRIND_MODE="$valgrind"
 918         export GIT_VALGRIND_MODE
 919         GIT_VALGRIND_ENABLED=t
 920         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 921         export GIT_VALGRIND_ENABLED
 922 elif test -n "$GIT_TEST_INSTALLED"
 923 then
 924         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 925         error "Cannot run git from $GIT_TEST_INSTALLED."
 926         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 927         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 928 else # normal case, use ../bin-wrappers only unless $with_dashes:
 929         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 930         if ! test -x "$git_bin_dir/git"
 931         then
 932                 if test -z "$with_dashes"
 933                 then
 934                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 935                 fi
 936                 with_dashes=t
 937         fi
 938         PATH="$git_bin_dir:$PATH"
 939         GIT_EXEC_PATH=$GIT_BUILD_DIR
 940         if test -n "$with_dashes"
 941         then
 942                 PATH="$GIT_BUILD_DIR:$PATH"
 943         fi
 944 fi
 945 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 946 GIT_CONFIG_NOSYSTEM=1
 947 GIT_ATTR_NOSYSTEM=1
 948 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 949
 950 if test -z "$GIT_TEST_CMP"
 951 then
 952         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 953         then
 954                 GIT_TEST_CMP="$DIFF -c"
 955         else
 956                 GIT_TEST_CMP="$DIFF -u"
 957         fi
 958 fi
 959
 960 GITPERLLIB="$GIT_BUILD_DIR"/perl/build/lib
 961 export GITPERLLIB
 962 test -d "$GIT_BUILD_DIR"/templates/blt || {
 963         error "You haven't built things yet, have you?"
 964 }
 965
 966 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-tool
 967 then
 968         echo >&2 'You need to build test-tool:'
 969         echo >&2 'Run "make t/helper/test-tool" in the source (toplevel) directory'
 970         exit 1
 971 fi
 972
 973 # Test repository
 974 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 975 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 976 case "$TRASH_DIRECTORY" in
 977 /*) ;; # absolute path is good
 978  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 979 esac
 980 rm -fr "$TRASH_DIRECTORY" || {
 981         GIT_EXIT_OK=t
 982         echo >&5 "FATAL: Cannot prepare test area"
 983         exit 1
 984 }
 985
 986 HOME="$TRASH_DIRECTORY"
 987 GNUPGHOME="$HOME/gnupg-home-not-used"
 988 export HOME GNUPGHOME
 989
 990 if test -z "$TEST_NO_CREATE_REPO"
 991 then
 992         test_create_repo "$TRASH_DIRECTORY"
 993 else
 994         mkdir -p "$TRASH_DIRECTORY"
 995 fi
 996 # Use -P to resolve symlinks in our working directory so that the cwd
 997 # in subprocesses like git equals our $PWD (for pathname comparisons).
 998 cd -P "$TRASH_DIRECTORY" || exit 1
 999
1000 this_test=${0##*/}
1001 this_test=${this_test%%-*}
1002 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
1003 then
1004         say_color info >&3 "skipping test $this_test altogether"
1005         skip_all="skip all tests in $this_test"
1006         test_done
1007 fi
1008
1009 # Provide an implementation of the 'yes' utility
1010 yes () {
1011         if test $# = 0
1012         then
1013                 y=y
1014         else
1015                 y="$*"
1016         fi
1017
1018         i=0
1019         while test $i -lt 99
1020         do
1021                 echo "$y"
1022                 i=$(($i+1))
1023         done
1024 }
1025
1026 # Fix some commands on Windows
1027 uname_s=$(uname -s)
1028 case $uname_s in
1029 *MINGW*)
1030         # Windows has its own (incompatible) sort and find
1031         sort () {
1032                 /usr/bin/sort "$@"
1033         }
1034         find () {
1035                 /usr/bin/find "$@"
1036         }
1037         # git sees Windows-style pwd
1038         pwd () {
1039                 builtin pwd -W
1040         }
1041         # no POSIX permissions
1042         # backslashes in pathspec are converted to '/'
1043         # exec does not inherit the PID
1044         test_set_prereq MINGW
1045         test_set_prereq NATIVE_CRLF
1046         test_set_prereq SED_STRIPS_CR
1047         test_set_prereq GREP_STRIPS_CR
1048         GIT_TEST_CMP=mingw_test_cmp
1049         ;;
1050 *CYGWIN*)
1051         test_set_prereq POSIXPERM
1052         test_set_prereq EXECKEEPSPID
1053         test_set_prereq CYGWIN
1054         test_set_prereq SED_STRIPS_CR
1055         test_set_prereq GREP_STRIPS_CR
1056         ;;
1057 *)
1058         test_set_prereq POSIXPERM
1059         test_set_prereq BSLASHPSPEC
1060         test_set_prereq EXECKEEPSPID
1061         ;;
1062 esac
1063
1064 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1065 test -z "$NO_PERL" && test_set_prereq PERL
1066 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1067 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1068 test -n "$USE_LIBPCRE1$USE_LIBPCRE2" && test_set_prereq PCRE
1069 test -n "$USE_LIBPCRE1" && test_set_prereq LIBPCRE1
1070 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1071 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1072
1073 # Can we rely on git's output in the C locale?
1074 if test -n "$GETTEXT_POISON"
1075 then
1076         GIT_GETTEXT_POISON=YesPlease
1077         export GIT_GETTEXT_POISON
1078         test_set_prereq GETTEXT_POISON
1079 else
1080         test_set_prereq C_LOCALE_OUTPUT
1081 fi
1082
1083 test_lazy_prereq PIPE '
1084         # test whether the filesystem supports FIFOs
1085         test_have_prereq !MINGW,!CYGWIN &&
1086         rm -f testfifo && mkfifo testfifo
1087 '
1088
1089 test_lazy_prereq SYMLINKS '
1090         # test whether the filesystem supports symbolic links
1091         ln -s x y && test -h y
1092 '
1093
1094 test_lazy_prereq FILEMODE '
1095         test "$(git config --bool core.filemode)" = true
1096 '
1097
1098 test_lazy_prereq CASE_INSENSITIVE_FS '
1099         echo good >CamelCase &&
1100         echo bad >camelcase &&
1101         test "$(cat CamelCase)" != good
1102 '
1103
1104 test_lazy_prereq UTF8_NFD_TO_NFC '
1105         # check whether FS converts nfd unicode to nfc
1106         auml=$(printf "\303\244")
1107         aumlcdiar=$(printf "\141\314\210")
1108         >"$auml" &&
1109         case "$(echo *)" in
1110         "$aumlcdiar")
1111                 true ;;
1112         *)
1113                 false ;;
1114         esac
1115 '
1116
1117 test_lazy_prereq AUTOIDENT '
1118         sane_unset GIT_AUTHOR_NAME &&
1119         sane_unset GIT_AUTHOR_EMAIL &&
1120         git var GIT_AUTHOR_IDENT
1121 '
1122
1123 test_lazy_prereq EXPENSIVE '
1124         test -n "$GIT_TEST_LONG"
1125 '
1126
1127 test_lazy_prereq EXPENSIVE_ON_WINDOWS '
1128         test_have_prereq EXPENSIVE || test_have_prereq !MINGW,!CYGWIN
1129 '
1130
1131 test_lazy_prereq USR_BIN_TIME '
1132         test -x /usr/bin/time
1133 '
1134
1135 test_lazy_prereq NOT_ROOT '
1136         uid=$(id -u) &&
1137         test "$uid" != 0
1138 '
1139
1140 test_lazy_prereq JGIT '
1141         type jgit
1142 '
1143
1144 # SANITY is about "can you correctly predict what the filesystem would
1145 # do by only looking at the permission bits of the files and
1146 # directories?"  A typical example of !SANITY is running the test
1147 # suite as root, where a test may expect "chmod -r file && cat file"
1148 # to fail because file is supposed to be unreadable after a successful
1149 # chmod.  In an environment (i.e. combination of what filesystem is
1150 # being used and who is running the tests) that lacks SANITY, you may
1151 # be able to delete or create a file when the containing directory
1152 # doesn't have write permissions, or access a file even if the
1153 # containing directory doesn't have read or execute permissions.
1154
1155 test_lazy_prereq SANITY '
1156         mkdir SANETESTD.1 SANETESTD.2 &&
1157
1158         chmod +w SANETESTD.1 SANETESTD.2 &&
1159         >SANETESTD.1/x 2>SANETESTD.2/x &&
1160         chmod -w SANETESTD.1 &&
1161         chmod -r SANETESTD.1/x &&
1162         chmod -rx SANETESTD.2 ||
1163         error "bug in test sript: cannot prepare SANETESTD"
1164
1165         ! test -r SANETESTD.1/x &&
1166         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1167         status=$?
1168
1169         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1170         rm -rf SANETESTD.1 SANETESTD.2 ||
1171         error "bug in test sript: cannot clean SANETESTD"
1172         return $status
1173 '
1174
1175 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1176 GIT_UNZIP=${GIT_UNZIP:-unzip}
1177 test_lazy_prereq UNZIP '
1178         "$GIT_UNZIP" -v
1179         test $? -ne 127
1180 '
1181
1182 run_with_limited_cmdline () {
1183         (ulimit -s 128 && "$@")
1184 }
1185
1186 test_lazy_prereq CMDLINE_LIMIT '
1187         test_have_prereq !MINGW,!CYGWIN &&
1188         run_with_limited_cmdline true
1189 '
1190
1191 run_with_limited_stack () {
1192         (ulimit -s 128 && "$@")
1193 }
1194
1195 test_lazy_prereq ULIMIT_STACK_SIZE '
1196         test_have_prereq !MINGW,!CYGWIN &&
1197         run_with_limited_stack true
1198 '
1199
1200 build_option () {
1201         git version --build-options |
1202         sed -ne "s/^$1: //p"
1203 }
1204
1205 test_lazy_prereq LONG_IS_64BIT '
1206         test 8 -le "$(build_option sizeof-long)"
1207 '
1208
1209 test_lazy_prereq TIME_IS_64BIT 'test-tool date is64bit'
1210 test_lazy_prereq TIME_T_IS_64BIT 'test-tool date time_t-is64bit'
1211
1212 test_lazy_prereq CURL '
1213         curl --version
1214 '