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_CONFIG_HOME
 120 unset GITPERLLIB
 121 GIT_AUTHOR_EMAIL=author@example.com
 122 GIT_AUTHOR_NAME='A U Thor'
 123 GIT_COMMITTER_EMAIL=committer@example.com
 124 GIT_COMMITTER_NAME='C O Mitter'
 125 GIT_MERGE_VERBOSITY=5
 126 GIT_MERGE_AUTOEDIT=no
 127 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
 128 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
 129 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
 130 export EDITOR
 131
 132 # Tests using GIT_TRACE typically don't want <timestamp> <file>:<line> output
 133 GIT_TRACE_BARE=1
 134 export GIT_TRACE_BARE
 135
 136 if test -n "${TEST_GIT_INDEX_VERSION:+isset}"
 137 then
 138         GIT_INDEX_VERSION="$TEST_GIT_INDEX_VERSION"
 139         export GIT_INDEX_VERSION
 140 fi
 141
 142 # Add libc MALLOC and MALLOC_PERTURB test
 143 # only if we are not executing the test with valgrind
 144 if expr " $GIT_TEST_OPTS " : ".* --valgrind " >/dev/null ||
 145    test -n "$TEST_NO_MALLOC_CHECK"
 146 then
 147         setup_malloc_check () {
 148                 : nothing
 149         }
 150         teardown_malloc_check () {
 151                 : nothing
 152         }
 153 else
 154         setup_malloc_check () {
 155                 MALLOC_CHECK_=3 MALLOC_PERTURB_=165
 156                 export MALLOC_CHECK_ MALLOC_PERTURB_
 157         }
 158         teardown_malloc_check () {
 159                 unset MALLOC_CHECK_ MALLOC_PERTURB_
 160         }
 161 fi
 162
 163 # Protect ourselves from common misconfiguration to export
 164 # CDPATH into the environment
 165 unset CDPATH
 166
 167 unset GREP_OPTIONS
 168 unset UNZIP
 169
 170 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
 171 1|2|true)
 172         GIT_TRACE=4
 173         ;;
 174 esac
 175
 176 # Convenience
 177 #
 178 # A regexp to match 5, 35 and 40 hexdigits
 179 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 180 _x35="$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 181 _x40="$_x35$_x05"
 182
 183 # Zero SHA-1
 184 _z40=0000000000000000000000000000000000000000
 185
 186 EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
 187 EMPTY_BLOB=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
 188
 189 # Line feed
 190 LF='
 191 '
 192
 193 # UTF-8 ZERO WIDTH NON-JOINER, which HFS+ ignores
 194 # when case-folding filenames
 195 u200c=$(printf '\342\200\214')
 196
 197 export _x05 _x35 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB
 198
 199 # Each test should start with something like this, after copyright notices:
 200 #
 201 # test_description='Description of this test...
 202 # This test checks if command xyzzy does the right thing...
 203 # '
 204 # . ./test-lib.sh
 205 test "x$TERM" != "xdumb" && (
 206                 test -t 1 &&
 207                 tput bold >/dev/null 2>&1 &&
 208                 tput setaf 1 >/dev/null 2>&1 &&
 209                 tput sgr0 >/dev/null 2>&1
 210         ) &&
 211         color=t
 212
 213 while test "$#" -ne 0
 214 do
 215         case "$1" in
 216         -d|--d|--de|--deb|--debu|--debug)
 217                 debug=t; shift ;;
 218         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 219                 immediate=t; shift ;;
 220         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 221                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 222         -r)
 223                 shift; test "$#" -ne 0 || {
 224                         echo 'error: -r requires an argument' >&2;
 225                         exit 1;
 226                 }
 227                 run_list=$1; shift ;;
 228         --run=*)
 229                 run_list=${1#--*=}; shift ;;
 230         -h|--h|--he|--hel|--help)
 231                 help=t; shift ;;
 232         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 233                 verbose=t; shift ;;
 234         --verbose-only=*)
 235                 verbose_only=${1#--*=}
 236                 shift ;;
 237         -q|--q|--qu|--qui|--quie|--quiet)
 238                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 239                 # passed without the ok/not ok details is always an error.
 240                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 241         --with-dashes)
 242                 with_dashes=t; shift ;;
 243         --no-color)
 244                 color=; shift ;;
 245         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 246                 valgrind=memcheck
 247                 shift ;;
 248         --valgrind=*)
 249                 valgrind=${1#--*=}
 250                 shift ;;
 251         --valgrind-only=*)
 252                 valgrind_only=${1#--*=}
 253                 shift ;;
 254         --tee)
 255                 shift ;; # was handled already
 256         --root=*)
 257                 root=${1#--*=}
 258                 shift ;;
 259         --chain-lint)
 260                 GIT_TEST_CHAIN_LINT=1
 261                 shift ;;
 262         --no-chain-lint)
 263                 GIT_TEST_CHAIN_LINT=0
 264                 shift ;;
 265         -x)
 266                 trace=t
 267                 shift ;;
 268         --verbose-log)
 269                 verbose_log=t
 270                 shift ;;
 271         *)
 272                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 273         esac
 274 done
 275
 276 if test -n "$valgrind_only"
 277 then
 278         test -z "$valgrind" && valgrind=memcheck
 279         test -z "$verbose" && verbose_only="$valgrind_only"
 280 elif test -n "$valgrind"
 281 then
 282         test -z "$verbose_log" && verbose=t
 283 fi
 284
 285 if test -n "$trace" && test -z "$verbose_log"
 286 then
 287         verbose=t
 288 fi
 289
 290 if test -n "$color"
 291 then
 292         # Save the color control sequences now rather than run tput
 293         # each time say_color() is called.  This is done for two
 294         # reasons:
 295         #   * TERM will be changed to dumb
 296         #   * HOME will be changed to a temporary directory and tput
 297         #     might need to read ~/.terminfo from the original HOME
 298         #     directory to get the control sequences
 299         # Note:  This approach assumes the control sequences don't end
 300         # in a newline for any terminal of interest (command
 301         # substitutions strip trailing newlines).  Given that most
 302         # (all?) terminals in common use are related to ECMA-48, this
 303         # shouldn't be a problem.
 304         say_color_error=$(tput bold; tput setaf 1) # bold red
 305         say_color_skip=$(tput setaf 4) # blue
 306         say_color_warn=$(tput setaf 3) # brown/yellow
 307         say_color_pass=$(tput setaf 2) # green
 308         say_color_info=$(tput setaf 6) # cyan
 309         say_color_reset=$(tput sgr0)
 310         say_color_="" # no formatting for normal text
 311         say_color () {
 312                 test -z "$1" && test -n "$quiet" && return
 313                 eval "say_color_color=\$say_color_$1"
 314                 shift
 315                 printf "%s\\n" "$say_color_color$*$say_color_reset"
 316         }
 317 else
 318         say_color() {
 319                 test -z "$1" && test -n "$quiet" && return
 320                 shift
 321                 printf "%s\n" "$*"
 322         }
 323 fi
 324
 325 TERM=dumb
 326 export TERM
 327
 328 error () {
 329         say_color error "error: $*"
 330         GIT_EXIT_OK=t
 331         exit 1
 332 }
 333
 334 say () {
 335         say_color info "$*"
 336 }
 337
 338 if test -n "$HARNESS_ACTIVE"
 339 then
 340         if test "$verbose" = t || test -n "$verbose_only"
 341         then
 342                 printf 'Bail out! %s\n' \
 343                  'verbose mode forbidden under TAP harness; try --verbose-log'
 344                 exit 1
 345         fi
 346 fi
 347
 348 test "${test_description}" != "" ||
 349 error "Test script did not set test_description."
 350
 351 if test "$help" = "t"
 352 then
 353         printf '%s\n' "$test_description"
 354         exit 0
 355 fi
 356
 357 exec 5>&1
 358 exec 6<&0
 359 exec 7>&2
 360 if test "$verbose_log" = "t"
 361 then
 362         exec 3>>"$GIT_TEST_TEE_OUTPUT_FILE" 4>&3
 363 elif test "$verbose" = "t"
 364 then
 365         exec 4>&2 3>&1
 366 else
 367         exec 4>/dev/null 3>/dev/null
 368 fi
 369
 370 # Send any "-x" output directly to stderr to avoid polluting tests
 371 # which capture stderr. We can do this unconditionally since it
 372 # has no effect if tracing isn't turned on.
 373 #
 374 # Note that this sets up the trace fd as soon as we assign the variable, so it
 375 # must come after the creation of descriptor 4 above. Likewise, we must never
 376 # unset this, as it has the side effect of closing descriptor 4, which we
 377 # use to show verbose tests to the user.
 378 #
 379 # Note also that we don't need or want to export it. The tracing is local to
 380 # this shell, and we would not want to influence any shells we exec.
 381 BASH_XTRACEFD=4
 382
 383 test_failure=0
 384 test_count=0
 385 test_fixed=0
 386 test_broken=0
 387 test_success=0
 388
 389 test_external_has_tap=0
 390
 391 die () {
 392         code=$?
 393         if test -n "$GIT_EXIT_OK"
 394         then
 395                 exit $code
 396         else
 397                 echo >&5 "FATAL: Unexpected exit with code $code"
 398                 exit 1
 399         fi
 400 }
 401
 402 GIT_EXIT_OK=
 403 trap 'die' EXIT
 404 trap 'exit $?' INT
 405
 406 # The user-facing functions are loaded from a separate file so that
 407 # test_perf subshells can have them too
 408 . "$TEST_DIRECTORY/test-lib-functions.sh"
 409
 410 # You are not expected to call test_ok_ and test_failure_ directly, use
 411 # the test_expect_* functions instead.
 412
 413 test_ok_ () {
 414         test_success=$(($test_success + 1))
 415         say_color "" "ok $test_count - $@"
 416 }
 417
 418 test_failure_ () {
 419         test_failure=$(($test_failure + 1))
 420         say_color error "not ok $test_count - $1"
 421         shift
 422         printf '%s\n' "$*" | sed -e 's/^/#      /'
 423         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 424 }
 425
 426 test_known_broken_ok_ () {
 427         test_fixed=$(($test_fixed+1))
 428         say_color error "ok $test_count - $@ # TODO known breakage vanished"
 429 }
 430
 431 test_known_broken_failure_ () {
 432         test_broken=$(($test_broken+1))
 433         say_color warn "not ok $test_count - $@ # TODO known breakage"
 434 }
 435
 436 test_debug () {
 437         test "$debug" = "" || eval "$1"
 438 }
 439
 440 match_pattern_list () {
 441         arg="$1"
 442         shift
 443         test -z "$*" && return 1
 444         for pattern_
 445         do
 446                 case "$arg" in
 447                 $pattern_)
 448                         return 0
 449                 esac
 450         done
 451         return 1
 452 }
 453
 454 match_test_selector_list () {
 455         title="$1"
 456         shift
 457         arg="$1"
 458         shift
 459         test -z "$1" && return 0
 460
 461         # Both commas and whitespace are accepted as separators.
 462         OLDIFS=$IFS
 463         IFS='   ,'
 464         set -- $1
 465         IFS=$OLDIFS
 466
 467         # If the first selector is negative we include by default.
 468         include=
 469         case "$1" in
 470                 !*) include=t ;;
 471         esac
 472
 473         for selector
 474         do
 475                 orig_selector=$selector
 476
 477                 positive=t
 478                 case "$selector" in
 479                         !*)
 480                                 positive=
 481                                 selector=${selector##?}
 482                                 ;;
 483                 esac
 484
 485                 test -z "$selector" && continue
 486
 487                 case "$selector" in
 488                         *-*)
 489                                 if expr "z${selector%%-*}" : "z[0-9]*[^0-9]" >/dev/null
 490                                 then
 491                                         echo "error: $title: invalid non-numeric in range" \
 492                                                 "start: '$orig_selector'" >&2
 493                                         exit 1
 494                                 fi
 495                                 if expr "z${selector#*-}" : "z[0-9]*[^0-9]" >/dev/null
 496                                 then
 497                                         echo "error: $title: invalid non-numeric in range" \
 498                                                 "end: '$orig_selector'" >&2
 499                                         exit 1
 500                                 fi
 501                                 ;;
 502                         *)
 503                                 if expr "z$selector" : "z[0-9]*[^0-9]" >/dev/null
 504                                 then
 505                                         echo "error: $title: invalid non-numeric in test" \
 506                                                 "selector: '$orig_selector'" >&2
 507                                         exit 1
 508                                 fi
 509                 esac
 510
 511                 # Short cut for "obvious" cases
 512                 test -z "$include" && test -z "$positive" && continue
 513                 test -n "$include" && test -n "$positive" && continue
 514
 515                 case "$selector" in
 516                         -*)
 517                                 if test $arg -le ${selector#-}
 518                                 then
 519                                         include=$positive
 520                                 fi
 521                                 ;;
 522                         *-)
 523                                 if test $arg -ge ${selector%-}
 524                                 then
 525                                         include=$positive
 526                                 fi
 527                                 ;;
 528                         *-*)
 529                                 if test ${selector%%-*} -le $arg \
 530                                         && test $arg -le ${selector#*-}
 531                                 then
 532                                         include=$positive
 533                                 fi
 534                                 ;;
 535                         *)
 536                                 if test $arg -eq $selector
 537                                 then
 538                                         include=$positive
 539                                 fi
 540                                 ;;
 541                 esac
 542         done
 543
 544         test -n "$include"
 545 }
 546
 547 maybe_teardown_verbose () {
 548         test -z "$verbose_only" && return
 549         exec 4>/dev/null 3>/dev/null
 550         verbose=
 551 }
 552
 553 last_verbose=t
 554 maybe_setup_verbose () {
 555         test -z "$verbose_only" && return
 556         if match_pattern_list $test_count $verbose_only
 557         then
 558                 exec 4>&2 3>&1
 559                 # Emit a delimiting blank line when going from
 560                 # non-verbose to verbose.  Within verbose mode the
 561                 # delimiter is printed by test_expect_*.  The choice
 562                 # of the initial $last_verbose is such that before
 563                 # test 1, we do not print it.
 564                 test -z "$last_verbose" && echo >&3 ""
 565                 verbose=t
 566         else
 567                 exec 4>/dev/null 3>/dev/null
 568                 verbose=
 569         fi
 570         last_verbose=$verbose
 571 }
 572
 573 maybe_teardown_valgrind () {
 574         test -z "$GIT_VALGRIND" && return
 575         GIT_VALGRIND_ENABLED=
 576 }
 577
 578 maybe_setup_valgrind () {
 579         test -z "$GIT_VALGRIND" && return
 580         if test -z "$valgrind_only"
 581         then
 582                 GIT_VALGRIND_ENABLED=t
 583                 return
 584         fi
 585         GIT_VALGRIND_ENABLED=
 586         if match_pattern_list $test_count $valgrind_only
 587         then
 588                 GIT_VALGRIND_ENABLED=t
 589         fi
 590 }
 591
 592 want_trace () {
 593         test "$trace" = t && {
 594                 test "$verbose" = t || test "$verbose_log" = t
 595         }
 596 }
 597
 598 # This is a separate function because some tests use
 599 # "return" to end a test_expect_success block early
 600 # (and we want to make sure we run any cleanup like
 601 # "set +x").
 602 test_eval_inner_ () {
 603         # Do not add anything extra (including LF) after '$*'
 604         eval "
 605                 want_trace && set -x
 606                 $*"
 607 }
 608
 609 test_eval_ () {
 610         # If "-x" tracing is in effect, then we want to avoid polluting stderr
 611         # with non-test commands. But once in "set -x" mode, we cannot prevent
 612         # the shell from printing the "set +x" to turn it off (nor the saving
 613         # of $? before that). But we can make sure that the output goes to
 614         # /dev/null.
 615         #
 616         # There are a few subtleties here:
 617         #
 618         #   - we have to redirect descriptor 4 in addition to 2, to cover
 619         #     BASH_XTRACEFD
 620         #
 621         #   - the actual eval has to come before the redirection block (since
 622         #     it needs to see descriptor 4 to set up its stderr)
 623         #
 624         #   - likewise, any error message we print must be outside the block to
 625         #     access descriptor 4
 626         #
 627         #   - checking $? has to come immediately after the eval, but it must
 628         #     be _inside_ the block to avoid polluting the "set -x" output
 629         #
 630
 631         test_eval_inner_ "$@" </dev/null >&3 2>&4
 632         {
 633                 test_eval_ret_=$?
 634                 if want_trace
 635                 then
 636                         set +x
 637                 fi
 638         } 2>/dev/null 4>&2
 639
 640         if test "$test_eval_ret_" != 0 && want_trace
 641         then
 642                 say_color error >&4 "error: last command exited with \$?=$test_eval_ret_"
 643         fi
 644         return $test_eval_ret_
 645 }
 646
 647 test_run_ () {
 648         test_cleanup=:
 649         expecting_failure=$2
 650
 651         if test "${GIT_TEST_CHAIN_LINT:-1}" != 0; then
 652                 # turn off tracing for this test-eval, as it simply creates
 653                 # confusing noise in the "-x" output
 654                 trace_tmp=$trace
 655                 trace=
 656                 # 117 is magic because it is unlikely to match the exit
 657                 # code of other programs
 658                 if test "OK-117" != "$(test_eval_ "(exit 117) && $1${LF}${LF}echo OK-\$?" 3>&1)"
 659                 then
 660                         error "bug in the test script: broken &&-chain or run-away HERE-DOC: $1"
 661                 fi
 662                 trace=$trace_tmp
 663         fi
 664
 665         setup_malloc_check
 666         test_eval_ "$1"
 667         eval_ret=$?
 668         teardown_malloc_check
 669
 670         if test -z "$immediate" || test $eval_ret = 0 ||
 671            test -n "$expecting_failure" && test "$test_cleanup" != ":"
 672         then
 673                 setup_malloc_check
 674                 test_eval_ "$test_cleanup"
 675                 teardown_malloc_check
 676         fi
 677         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"
 678         then
 679                 echo ""
 680         fi
 681         return "$eval_ret"
 682 }
 683
 684 test_start_ () {
 685         test_count=$(($test_count+1))
 686         maybe_setup_verbose
 687         maybe_setup_valgrind
 688 }
 689
 690 test_finish_ () {
 691         echo >&3 ""
 692         maybe_teardown_valgrind
 693         maybe_teardown_verbose
 694 }
 695
 696 test_skip () {
 697         to_skip=
 698         skipped_reason=
 699         if match_pattern_list $this_test.$test_count $GIT_SKIP_TESTS
 700         then
 701                 to_skip=t
 702                 skipped_reason="GIT_SKIP_TESTS"
 703         fi
 704         if test -z "$to_skip" && test -n "$test_prereq" &&
 705            ! test_have_prereq "$test_prereq"
 706         then
 707                 to_skip=t
 708
 709                 of_prereq=
 710                 if test "$missing_prereq" != "$test_prereq"
 711                 then
 712                         of_prereq=" of $test_prereq"
 713                 fi
 714                 skipped_reason="missing $missing_prereq${of_prereq}"
 715         fi
 716         if test -z "$to_skip" && test -n "$run_list" &&
 717                 ! match_test_selector_list '--run' $test_count "$run_list"
 718         then
 719                 to_skip=t
 720                 skipped_reason="--run"
 721         fi
 722
 723         case "$to_skip" in
 724         t)
 725                 say_color skip >&3 "skipping test: $@"
 726                 say_color skip "ok $test_count # skip $1 ($skipped_reason)"
 727                 : true
 728                 ;;
 729         *)
 730                 false
 731                 ;;
 732         esac
 733 }
 734
 735 # stub; perf-lib overrides it
 736 test_at_end_hook_ () {
 737         :
 738 }
 739
 740 test_done () {
 741         GIT_EXIT_OK=t
 742
 743         if test -z "$HARNESS_ACTIVE"
 744         then
 745                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 746                 mkdir -p "$test_results_dir"
 747                 base=${0##*/}
 748                 test_results_path="$test_results_dir/${base%.sh}.counts"
 749
 750                 cat >"$test_results_path" <<-EOF
 751                 total $test_count
 752                 success $test_success
 753                 fixed $test_fixed
 754                 broken $test_broken
 755                 failed $test_failure
 756
 757                 EOF
 758         fi
 759
 760         if test "$test_fixed" != 0
 761         then
 762                 say_color error "# $test_fixed known breakage(s) vanished; please update test(s)"
 763         fi
 764         if test "$test_broken" != 0
 765         then
 766                 say_color warn "# still have $test_broken known breakage(s)"
 767         fi
 768         if test "$test_broken" != 0 || test "$test_fixed" != 0
 769         then
 770                 test_remaining=$(( $test_count - $test_broken - $test_fixed ))
 771                 msg="remaining $test_remaining test(s)"
 772         else
 773                 test_remaining=$test_count
 774                 msg="$test_count test(s)"
 775         fi
 776         case "$test_failure" in
 777         0)
 778                 if test $test_external_has_tap -eq 0
 779                 then
 780                         if test $test_remaining -gt 0
 781                         then
 782                                 say_color pass "# passed all $msg"
 783                         fi
 784
 785                         # Maybe print SKIP message
 786                         test -z "$skip_all" || skip_all="# SKIP $skip_all"
 787                         case "$test_count" in
 788                         0)
 789                                 say "1..$test_count${skip_all:+ $skip_all}"
 790                                 ;;
 791                         *)
 792                                 test -z "$skip_all" ||
 793                                 say_color warn "$skip_all"
 794                                 say "1..$test_count"
 795                                 ;;
 796                         esac
 797                 fi
 798
 799                 if test -z "$debug"
 800                 then
 801                         test -d "$TRASH_DIRECTORY" ||
 802                         error "Tests passed but trash directory already removed before test cleanup; aborting"
 803
 804                         cd "$TRASH_DIRECTORY/.." &&
 805                         rm -fr "$TRASH_DIRECTORY" ||
 806                         error "Tests passed but test cleanup failed; aborting"
 807                 fi
 808                 test_at_end_hook_
 809
 810                 exit 0 ;;
 811
 812         *)
 813                 if test $test_external_has_tap -eq 0
 814                 then
 815                         say_color error "# failed $test_failure among $msg"
 816                         say "1..$test_count"
 817                 fi
 818
 819                 exit 1 ;;
 820
 821         esac
 822 }
 823
 824 if test -n "$valgrind"
 825 then
 826         make_symlink () {
 827                 test -h "$2" &&
 828                 test "$1" = "$(readlink "$2")" || {
 829                         # be super paranoid
 830                         if mkdir "$2".lock
 831                         then
 832                                 rm -f "$2" &&
 833                                 ln -s "$1" "$2" &&
 834                                 rm -r "$2".lock
 835                         else
 836                                 while test -d "$2".lock
 837                                 do
 838                                         say "Waiting for lock on $2."
 839                                         sleep 1
 840                                 done
 841                         fi
 842                 }
 843         }
 844
 845         make_valgrind_symlink () {
 846                 # handle only executables, unless they are shell libraries that
 847                 # need to be in the exec-path.
 848                 test -x "$1" ||
 849                 test "# " = "$(head -c 2 <"$1")" ||
 850                 return;
 851
 852                 base=$(basename "$1")
 853                 case "$base" in
 854                 test-*)
 855                         symlink_target="$GIT_BUILD_DIR/t/helper/$base"
 856                         ;;
 857                 *)
 858                         symlink_target="$GIT_BUILD_DIR/$base"
 859                         ;;
 860                 esac
 861                 # do not override scripts
 862                 if test -x "$symlink_target" &&
 863                     test ! -d "$symlink_target" &&
 864                     test "#!" != "$(head -c 2 < "$symlink_target")"
 865                 then
 866                         symlink_target=../valgrind.sh
 867                 fi
 868                 case "$base" in
 869                 *.sh|*.perl)
 870                         symlink_target=../unprocessed-script
 871                 esac
 872                 # create the link, or replace it if it is out of date
 873                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 874         }
 875
 876         # override all git executables in TEST_DIRECTORY/..
 877         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 878         mkdir -p "$GIT_VALGRIND"/bin
 879         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/t/helper/test-*
 880         do
 881                 make_valgrind_symlink $file
 882         done
 883         # special-case the mergetools loadables
 884         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 885         OLDIFS=$IFS
 886         IFS=:
 887         for path in $PATH
 888         do
 889                 ls "$path"/git-* 2> /dev/null |
 890                 while read file
 891                 do
 892                         make_valgrind_symlink "$file"
 893                 done
 894         done
 895         IFS=$OLDIFS
 896         PATH=$GIT_VALGRIND/bin:$PATH
 897         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 898         export GIT_VALGRIND
 899         GIT_VALGRIND_MODE="$valgrind"
 900         export GIT_VALGRIND_MODE
 901         GIT_VALGRIND_ENABLED=t
 902         test -n "$valgrind_only" && GIT_VALGRIND_ENABLED=
 903         export GIT_VALGRIND_ENABLED
 904 elif test -n "$GIT_TEST_INSTALLED"
 905 then
 906         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 907         error "Cannot run git from $GIT_TEST_INSTALLED."
 908         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 909         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 910 else # normal case, use ../bin-wrappers only unless $with_dashes:
 911         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 912         if ! test -x "$git_bin_dir/git"
 913         then
 914                 if test -z "$with_dashes"
 915                 then
 916                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 917                 fi
 918                 with_dashes=t
 919         fi
 920         PATH="$git_bin_dir:$PATH"
 921         GIT_EXEC_PATH=$GIT_BUILD_DIR
 922         if test -n "$with_dashes"
 923         then
 924                 PATH="$GIT_BUILD_DIR:$PATH"
 925         fi
 926 fi
 927 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 928 GIT_CONFIG_NOSYSTEM=1
 929 GIT_ATTR_NOSYSTEM=1
 930 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 931
 932 if test -z "$GIT_TEST_CMP"
 933 then
 934         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 935         then
 936                 GIT_TEST_CMP="$DIFF -c"
 937         else
 938                 GIT_TEST_CMP="$DIFF -u"
 939         fi
 940 fi
 941
 942 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 943 export GITPERLLIB
 944 test -d "$GIT_BUILD_DIR"/templates/blt || {
 945         error "You haven't built things yet, have you?"
 946 }
 947
 948 if ! test -x "$GIT_BUILD_DIR"/t/helper/test-chmtime
 949 then
 950         echo >&2 'You need to build test-chmtime:'
 951         echo >&2 'Run "make t/helper/test-chmtime" in the source (toplevel) directory'
 952         exit 1
 953 fi
 954
 955 # Test repository
 956 TRASH_DIRECTORY="trash directory.$(basename "$0" .sh)"
 957 test -n "$root" && TRASH_DIRECTORY="$root/$TRASH_DIRECTORY"
 958 case "$TRASH_DIRECTORY" in
 959 /*) ;; # absolute path is good
 960  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$TRASH_DIRECTORY" ;;
 961 esac
 962 rm -fr "$TRASH_DIRECTORY" || {
 963         GIT_EXIT_OK=t
 964         echo >&5 "FATAL: Cannot prepare test area"
 965         exit 1
 966 }
 967
 968 HOME="$TRASH_DIRECTORY"
 969 GNUPGHOME="$HOME/gnupg-home-not-used"
 970 export HOME GNUPGHOME
 971
 972 if test -z "$TEST_NO_CREATE_REPO"
 973 then
 974         test_create_repo "$TRASH_DIRECTORY"
 975 else
 976         mkdir -p "$TRASH_DIRECTORY"
 977 fi
 978 # Use -P to resolve symlinks in our working directory so that the cwd
 979 # in subprocesses like git equals our $PWD (for pathname comparisons).
 980 cd -P "$TRASH_DIRECTORY" || exit 1
 981
 982 this_test=${0##*/}
 983 this_test=${this_test%%-*}
 984 if match_pattern_list "$this_test" $GIT_SKIP_TESTS
 985 then
 986         say_color info >&3 "skipping test $this_test altogether"
 987         skip_all="skip all tests in $this_test"
 988         test_done
 989 fi
 990
 991 # Provide an implementation of the 'yes' utility
 992 yes () {
 993         if test $# = 0
 994         then
 995                 y=y
 996         else
 997                 y="$*"
 998         fi
 999
1000         i=0
1001         while test $i -lt 99
1002         do
1003                 echo "$y"
1004                 i=$(($i+1))
1005         done
1006 }
1007
1008 # Fix some commands on Windows
1009 uname_s=$(uname -s)
1010 case $uname_s in
1011 *MINGW*)
1012         # Windows has its own (incompatible) sort and find
1013         sort () {
1014                 /usr/bin/sort "$@"
1015         }
1016         find () {
1017                 /usr/bin/find "$@"
1018         }
1019         # git sees Windows-style pwd
1020         pwd () {
1021                 builtin pwd -W
1022         }
1023         # no POSIX permissions
1024         # backslashes in pathspec are converted to '/'
1025         # exec does not inherit the PID
1026         test_set_prereq MINGW
1027         test_set_prereq NATIVE_CRLF
1028         test_set_prereq SED_STRIPS_CR
1029         test_set_prereq GREP_STRIPS_CR
1030         GIT_TEST_CMP=mingw_test_cmp
1031         ;;
1032 *CYGWIN*)
1033         test_set_prereq POSIXPERM
1034         test_set_prereq EXECKEEPSPID
1035         test_set_prereq CYGWIN
1036         test_set_prereq SED_STRIPS_CR
1037         test_set_prereq GREP_STRIPS_CR
1038         ;;
1039 *)
1040         test_set_prereq POSIXPERM
1041         test_set_prereq BSLASHPSPEC
1042         test_set_prereq EXECKEEPSPID
1043         ;;
1044 esac
1045
1046 ( COLUMNS=1 && test $COLUMNS = 1 ) && test_set_prereq COLUMNS_CAN_BE_1
1047 test -z "$NO_PERL" && test_set_prereq PERL
1048 test -z "$NO_PTHREADS" && test_set_prereq PTHREADS
1049 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1050 test -n "$USE_LIBPCRE1$USE_LIBPCRE2" && test_set_prereq PCRE
1051 test -n "$USE_LIBPCRE1" && test_set_prereq LIBPCRE1
1052 test -n "$USE_LIBPCRE2" && test_set_prereq LIBPCRE2
1053 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
1054
1055 # Can we rely on git's output in the C locale?
1056 if test -n "$GETTEXT_POISON"
1057 then
1058         GIT_GETTEXT_POISON=YesPlease
1059         export GIT_GETTEXT_POISON
1060         test_set_prereq GETTEXT_POISON
1061 else
1062         test_set_prereq C_LOCALE_OUTPUT
1063 fi
1064
1065 # Use this instead of test_cmp to compare files that contain expected and
1066 # actual output from git commands that can be translated.  When running
1067 # under GETTEXT_POISON this pretends that the command produced expected
1068 # results.
1069 test_i18ncmp () {
1070         test -n "$GETTEXT_POISON" || test_cmp "$@"
1071 }
1072
1073 # Use this instead of "grep expected-string actual" to see if the
1074 # output from a git command that can be translated either contains an
1075 # expected string, or does not contain an unwanted one.  When running
1076 # under GETTEXT_POISON this pretends that the command produced expected
1077 # results.
1078 test_i18ngrep () {
1079         if test -n "$GETTEXT_POISON"
1080         then
1081             : # pretend success
1082         elif test "x!" = "x$1"
1083         then
1084                 shift
1085                 ! grep "$@"
1086         else
1087                 grep "$@"
1088         fi
1089 }
1090
1091 test_lazy_prereq PIPE '
1092         # test whether the filesystem supports FIFOs
1093         test_have_prereq !MINGW,!CYGWIN &&
1094         rm -f testfifo && mkfifo testfifo
1095 '
1096
1097 test_lazy_prereq SYMLINKS '
1098         # test whether the filesystem supports symbolic links
1099         ln -s x y && test -h y
1100 '
1101
1102 test_lazy_prereq FILEMODE '
1103         test "$(git config --bool core.filemode)" = true
1104 '
1105
1106 test_lazy_prereq CASE_INSENSITIVE_FS '
1107         echo good >CamelCase &&
1108         echo bad >camelcase &&
1109         test "$(cat CamelCase)" != good
1110 '
1111
1112 test_lazy_prereq UTF8_NFD_TO_NFC '
1113         # check whether FS converts nfd unicode to nfc
1114         auml=$(printf "\303\244")
1115         aumlcdiar=$(printf "\141\314\210")
1116         >"$auml" &&
1117         case "$(echo *)" in
1118         "$aumlcdiar")
1119                 true ;;
1120         *)
1121                 false ;;
1122         esac
1123 '
1124
1125 test_lazy_prereq AUTOIDENT '
1126         sane_unset GIT_AUTHOR_NAME &&
1127         sane_unset GIT_AUTHOR_EMAIL &&
1128         git var GIT_AUTHOR_IDENT
1129 '
1130
1131 test_lazy_prereq EXPENSIVE '
1132         test -n "$GIT_TEST_LONG"
1133 '
1134
1135 test_lazy_prereq USR_BIN_TIME '
1136         test -x /usr/bin/time
1137 '
1138
1139 test_lazy_prereq NOT_ROOT '
1140         uid=$(id -u) &&
1141         test "$uid" != 0
1142 '
1143
1144 test_lazy_prereq JGIT '
1145         type jgit
1146 '
1147
1148 # SANITY is about "can you correctly predict what the filesystem would
1149 # do by only looking at the permission bits of the files and
1150 # directories?"  A typical example of !SANITY is running the test
1151 # suite as root, where a test may expect "chmod -r file && cat file"
1152 # to fail because file is supposed to be unreadable after a successful
1153 # chmod.  In an environment (i.e. combination of what filesystem is
1154 # being used and who is running the tests) that lacks SANITY, you may
1155 # be able to delete or create a file when the containing directory
1156 # doesn't have write permissions, or access a file even if the
1157 # containing directory doesn't have read or execute permissions.
1158
1159 test_lazy_prereq SANITY '
1160         mkdir SANETESTD.1 SANETESTD.2 &&
1161
1162         chmod +w SANETESTD.1 SANETESTD.2 &&
1163         >SANETESTD.1/x 2>SANETESTD.2/x &&
1164         chmod -w SANETESTD.1 &&
1165         chmod -r SANETESTD.1/x &&
1166         chmod -rx SANETESTD.2 ||
1167         error "bug in test sript: cannot prepare SANETESTD"
1168
1169         ! test -r SANETESTD.1/x &&
1170         ! rm SANETESTD.1/x && ! test -f SANETESTD.2/x
1171         status=$?
1172
1173         chmod +rwx SANETESTD.1 SANETESTD.2 &&
1174         rm -rf SANETESTD.1 SANETESTD.2 ||
1175         error "bug in test sript: cannot clean SANETESTD"
1176         return $status
1177 '
1178
1179 test FreeBSD != $uname_s || GIT_UNZIP=${GIT_UNZIP:-/usr/local/bin/unzip}
1180 GIT_UNZIP=${GIT_UNZIP:-unzip}
1181 test_lazy_prereq UNZIP '
1182         "$GIT_UNZIP" -v
1183         test $? -ne 127
1184 '
1185
1186 run_with_limited_cmdline () {
1187         (ulimit -s 128 && "$@")
1188 }
1189
1190 test_lazy_prereq CMDLINE_LIMIT '
1191         test_have_prereq !MINGW,!CYGWIN &&
1192         run_with_limited_cmdline true
1193 '
1194
1195 run_with_limited_stack () {
1196         (ulimit -s 128 && "$@")
1197 }
1198
1199 test_lazy_prereq ULIMIT_STACK_SIZE '
1200         test_have_prereq !MINGW,!CYGWIN &&
1201         run_with_limited_stack true
1202 '
1203
1204 build_option () {
1205         git version --build-options |
1206         sed -ne "s/^$1: //p"
1207 }
1208
1209 test_lazy_prereq LONG_IS_64BIT '
1210         test 8 -le "$(build_option sizeof-long)"
1211 '
1212
1213 test_lazy_prereq TIME_IS_64BIT 'test-date is64bit'
1214 test_lazy_prereq TIME_T_IS_64BIT 'test-date time_t-is64bit'