t/test-lib.sh

   1 #!/bin/sh
   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 # if --tee was passed, write the output not only to the terminal, but
  19 # additionally to the file test-results/$BASENAME.out, too.
  20 case "$GIT_TEST_TEE_STARTED, $* " in
  21 done,*)
  22         # do not redirect again
  23         ;;
  24 *' --tee '*|*' --va'*)
  25         mkdir -p test-results
  26         BASE=test-results/$(basename "$0" .sh)
  27         (GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
  28          echo $? > $BASE.exit) | tee $BASE.out
  29         test "$(cat $BASE.exit)" = 0
  30         exit
  31         ;;
  32 esac
  33
  34 # Keep the original TERM for say_color
  35 ORIGINAL_TERM=$TERM
  36
  37 # For repeatability, reset the environment to known value.
  38 LANG=C
  39 LC_ALL=C
  40 PAGER=cat
  41 TZ=UTC
  42 TERM=dumb
  43 export LANG LC_ALL PAGER TERM TZ
  44 EDITOR=:
  45 unset VISUAL
  46 unset GIT_EDITOR
  47 unset AUTHOR_DATE
  48 unset AUTHOR_EMAIL
  49 unset AUTHOR_NAME
  50 unset COMMIT_AUTHOR_EMAIL
  51 unset COMMIT_AUTHOR_NAME
  52 unset EMAIL
  53 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  54 unset GIT_AUTHOR_DATE
  55 GIT_AUTHOR_EMAIL=author@example.com
  56 GIT_AUTHOR_NAME='A U Thor'
  57 unset GIT_COMMITTER_DATE
  58 GIT_COMMITTER_EMAIL=committer@example.com
  59 GIT_COMMITTER_NAME='C O Mitter'
  60 unset GIT_DIFF_OPTS
  61 unset GIT_DIR
  62 unset GIT_WORK_TREE
  63 unset GIT_EXTERNAL_DIFF
  64 unset GIT_INDEX_FILE
  65 unset GIT_OBJECT_DIRECTORY
  66 unset GIT_CEILING_DIRECTORIES
  67 unset SHA1_FILE_DIRECTORIES
  68 unset SHA1_FILE_DIRECTORY
  69 unset GIT_NOTES_REF
  70 unset GIT_NOTES_DISPLAY_REF
  71 unset GIT_NOTES_REWRITE_REF
  72 unset GIT_NOTES_REWRITE_MODE
  73 unset GIT_REFLOG_ACTION
  74 unset GIT_CHERRY_PICK_HELP
  75 unset GIT_QUIET
  76 GIT_MERGE_VERBOSITY=5
  77 export GIT_MERGE_VERBOSITY
  78 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  79 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  80 export EDITOR
  81
  82 # Protect ourselves from common misconfiguration to export
  83 # CDPATH into the environment
  84 unset CDPATH
  85
  86 unset GREP_OPTIONS
  87
  88 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  89         1|2|true)
  90                 echo "* warning: Some tests will not work if GIT_TRACE" \
  91                         "is set as to trace on STDERR ! *"
  92                 echo "* warning: Please set GIT_TRACE to something" \
  93                         "other than 1, 2 or true ! *"
  94                 ;;
  95 esac
  96
  97 # Convenience
  98 #
  99 # A regexp to match 5 and 40 hexdigits
 100 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 101 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
 102
 103 # Each test should start with something like this, after copyright notices:
 104 #
 105 # test_description='Description of this test...
 106 # This test checks if command xyzzy does the right thing...
 107 # '
 108 # . ./test-lib.sh
 109 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 110                 TERM=$ORIGINAL_TERM &&
 111                 export TERM &&
 112                 [ -t 1 ] &&
 113                 tput bold >/dev/null 2>&1 &&
 114                 tput setaf 1 >/dev/null 2>&1 &&
 115                 tput sgr0 >/dev/null 2>&1
 116         ) &&
 117         color=t
 118
 119 while test "$#" -ne 0
 120 do
 121         case "$1" in
 122         -d|--d|--de|--deb|--debu|--debug)
 123                 debug=t; shift ;;
 124         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 125                 immediate=t; shift ;;
 126         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 127                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 128         -h|--h|--he|--hel|--help)
 129                 help=t; shift ;;
 130         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 131                 verbose=t; shift ;;
 132         -q|--q|--qu|--qui|--quie|--quiet)
 133                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 134                 # passed without the ok/not ok details is always an error.
 135                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 136         --with-dashes)
 137                 with_dashes=t; shift ;;
 138         --no-color)
 139                 color=; shift ;;
 140         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 141                 valgrind=t; verbose=t; shift ;;
 142         --tee)
 143                 shift ;; # was handled already
 144         --root=*)
 145                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 146                 shift ;;
 147         *)
 148                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 149         esac
 150 done
 151
 152 if test -n "$color"; then
 153         say_color () {
 154                 (
 155                 TERM=$ORIGINAL_TERM
 156                 export TERM
 157                 case "$1" in
 158                         error) tput bold; tput setaf 1;; # bold red
 159                         skip)  tput bold; tput setaf 2;; # bold green
 160                         pass)  tput setaf 2;;            # green
 161                         info)  tput setaf 3;;            # brown
 162                         *) test -n "$quiet" && return;;
 163                 esac
 164                 shift
 165                 printf "%s" "$*"
 166                 tput sgr0
 167                 echo
 168                 )
 169         }
 170 else
 171         say_color() {
 172                 test -z "$1" && test -n "$quiet" && return
 173                 shift
 174                 echo "$*"
 175         }
 176 fi
 177
 178 error () {
 179         say_color error "error: $*"
 180         GIT_EXIT_OK=t
 181         exit 1
 182 }
 183
 184 say () {
 185         say_color info "$*"
 186 }
 187
 188 test "${test_description}" != "" ||
 189 error "Test script did not set test_description."
 190
 191 if test "$help" = "t"
 192 then
 193         echo "$test_description"
 194         exit 0
 195 fi
 196
 197 exec 5>&1
 198 if test "$verbose" = "t"
 199 then
 200         exec 4>&2 3>&1
 201 else
 202         exec 4>/dev/null 3>/dev/null
 203 fi
 204
 205 test_failure=0
 206 test_count=0
 207 test_fixed=0
 208 test_broken=0
 209 test_success=0
 210
 211 test_external_has_tap=0
 212
 213 die () {
 214         code=$?
 215         if test -n "$GIT_EXIT_OK"
 216         then
 217                 exit $code
 218         else
 219                 echo >&5 "FATAL: Unexpected exit with code $code"
 220                 exit 1
 221         fi
 222 }
 223
 224 GIT_EXIT_OK=
 225 trap 'die' EXIT
 226
 227 # The semantics of the editor variables are that of invoking
 228 # sh -c "$EDITOR \"$@\"" files ...
 229 #
 230 # If our trash directory contains shell metacharacters, they will be
 231 # interpreted if we just set $EDITOR directly, so do a little dance with
 232 # environment variables to work around this.
 233 #
 234 # In particular, quoting isn't enough, as the path may contain the same quote
 235 # that we're using.
 236 test_set_editor () {
 237         FAKE_EDITOR="$1"
 238         export FAKE_EDITOR
 239         EDITOR='"$FAKE_EDITOR"'
 240         export EDITOR
 241 }
 242
 243 test_decode_color () {
 244         awk '
 245                 function name(n) {
 246                         if (n == 0) return "RESET";
 247                         if (n == 1) return "BOLD";
 248                         if (n == 30) return "BLACK";
 249                         if (n == 31) return "RED";
 250                         if (n == 32) return "GREEN";
 251                         if (n == 33) return "YELLOW";
 252                         if (n == 34) return "BLUE";
 253                         if (n == 35) return "MAGENTA";
 254                         if (n == 36) return "CYAN";
 255                         if (n == 37) return "WHITE";
 256                         if (n == 40) return "BLACK";
 257                         if (n == 41) return "BRED";
 258                         if (n == 42) return "BGREEN";
 259                         if (n == 43) return "BYELLOW";
 260                         if (n == 44) return "BBLUE";
 261                         if (n == 45) return "BMAGENTA";
 262                         if (n == 46) return "BCYAN";
 263                         if (n == 47) return "BWHITE";
 264                 }
 265                 {
 266                         while (match($0, /\033\[[0-9;]*m/) != 0) {
 267                                 printf "%s<", substr($0, 1, RSTART-1);
 268                                 codes = substr($0, RSTART+2, RLENGTH-3);
 269                                 if (length(codes) == 0)
 270                                         printf "%s", name(0)
 271                                 else {
 272                                         n = split(codes, ary, ";");
 273                                         sep = "";
 274                                         for (i = 1; i <= n; i++) {
 275                                                 printf "%s%s", sep, name(ary[i]);
 276                                                 sep = ";"
 277                                         }
 278                                 }
 279                                 printf ">";
 280                                 $0 = substr($0, RSTART + RLENGTH, length($0) - RSTART - RLENGTH + 1);
 281                         }
 282                         print
 283                 }
 284         '
 285 }
 286
 287 nul_to_q () {
 288         perl -pe 'y/\000/Q/'
 289 }
 290
 291 q_to_nul () {
 292         perl -pe 'y/Q/\000/'
 293 }
 294
 295 q_to_cr () {
 296         tr Q '\015'
 297 }
 298
 299 q_to_tab () {
 300         tr Q '\011'
 301 }
 302
 303 append_cr () {
 304         sed -e 's/$/Q/' | tr Q '\015'
 305 }
 306
 307 remove_cr () {
 308         tr '\015' Q | sed -e 's/Q$//'
 309 }
 310
 311 # In some bourne shell implementations, the "unset" builtin returns
 312 # nonzero status when a variable to be unset was not set in the first
 313 # place.
 314 #
 315 # Use sane_unset when that should not be considered an error.
 316
 317 sane_unset () {
 318         unset "$@"
 319         return 0
 320 }
 321
 322 test_tick () {
 323         if test -z "${test_tick+set}"
 324         then
 325                 test_tick=1112911993
 326         else
 327                 test_tick=$(($test_tick + 60))
 328         fi
 329         GIT_COMMITTER_DATE="$test_tick -0700"
 330         GIT_AUTHOR_DATE="$test_tick -0700"
 331         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 332 }
 333
 334 # Call test_commit with the arguments "<message> [<file> [<contents>]]"
 335 #
 336 # This will commit a file with the given contents and the given commit
 337 # message.  It will also add a tag with <message> as name.
 338 #
 339 # Both <file> and <contents> default to <message>.
 340
 341 test_commit () {
 342         file=${2:-"$1.t"}
 343         echo "${3-$1}" > "$file" &&
 344         git add "$file" &&
 345         test_tick &&
 346         git commit -m "$1" &&
 347         git tag "$1"
 348 }
 349
 350 # Call test_merge with the arguments "<message> <commit>", where <commit>
 351 # can be a tag pointing to the commit-to-merge.
 352
 353 test_merge () {
 354         test_tick &&
 355         git merge -m "$1" "$2" &&
 356         git tag "$1"
 357 }
 358
 359 # This function helps systems where core.filemode=false is set.
 360 # Use it instead of plain 'chmod +x' to set or unset the executable bit
 361 # of a file in the working directory and add it to the index.
 362
 363 test_chmod () {
 364         chmod "$@" &&
 365         git update-index --add "--chmod=$@"
 366 }
 367
 368 # Use test_set_prereq to tell that a particular prerequisite is available.
 369 # The prerequisite can later be checked for in two ways:
 370 #
 371 # - Explicitly using test_have_prereq.
 372 #
 373 # - Implicitly by specifying the prerequisite tag in the calls to
 374 #   test_expect_{success,failure,code}.
 375 #
 376 # The single parameter is the prerequisite tag (a simple word, in all
 377 # capital letters by convention).
 378
 379 test_set_prereq () {
 380         satisfied="$satisfied$1 "
 381 }
 382 satisfied=" "
 383
 384 test_have_prereq () {
 385         # prerequisites can be concatenated with ','
 386         save_IFS=$IFS
 387         IFS=,
 388         set -- $*
 389         IFS=$save_IFS
 390
 391         total_prereq=0
 392         ok_prereq=0
 393         missing_prereq=
 394
 395         for prerequisite
 396         do
 397                 total_prereq=$(($total_prereq + 1))
 398                 case $satisfied in
 399                 *" $prerequisite "*)
 400                         ok_prereq=$(($ok_prereq + 1))
 401                         ;;
 402                 *)
 403                         # Keep a list of missing prerequisites
 404                         if test -z "$missing_prereq"
 405                         then
 406                                 missing_prereq=$prerequisite
 407                         else
 408                                 missing_prereq="$prerequisite,$missing_prereq"
 409                         fi
 410                 esac
 411         done
 412
 413         test $total_prereq = $ok_prereq
 414 }
 415
 416 test_declared_prereq () {
 417         case ",$test_prereq," in
 418         *,$1,*)
 419                 return 0
 420                 ;;
 421         esac
 422         return 1
 423 }
 424
 425 # You are not expected to call test_ok_ and test_failure_ directly, use
 426 # the text_expect_* functions instead.
 427
 428 test_ok_ () {
 429         test_success=$(($test_success + 1))
 430         say_color "" "ok $test_count - $@"
 431 }
 432
 433 test_failure_ () {
 434         test_failure=$(($test_failure + 1))
 435         say_color error "not ok - $test_count $1"
 436         shift
 437         echo "$@" | sed -e 's/^/#       /'
 438         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 439 }
 440
 441 test_known_broken_ok_ () {
 442         test_fixed=$(($test_fixed+1))
 443         say_color "" "ok $test_count - $@ # TODO known breakage"
 444 }
 445
 446 test_known_broken_failure_ () {
 447         test_broken=$(($test_broken+1))
 448         say_color skip "not ok $test_count - $@ # TODO known breakage"
 449 }
 450
 451 test_debug () {
 452         test "$debug" = "" || eval "$1"
 453 }
 454
 455 test_run_ () {
 456         test_cleanup=:
 457         eval >&3 2>&4 "$1"
 458         eval_ret=$?
 459         eval >&3 2>&4 "$test_cleanup"
 460         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"; then
 461                 echo ""
 462         fi
 463         return 0
 464 }
 465
 466 test_skip () {
 467         test_count=$(($test_count+1))
 468         to_skip=
 469         for skp in $GIT_SKIP_TESTS
 470         do
 471                 case $this_test.$test_count in
 472                 $skp)
 473                         to_skip=t
 474                         break
 475                 esac
 476         done
 477         if test -z "$to_skip" && test -n "$test_prereq" &&
 478            ! test_have_prereq "$test_prereq"
 479         then
 480                 to_skip=t
 481         fi
 482         case "$to_skip" in
 483         t)
 484                 of_prereq=
 485                 if test "$missing_prereq" != "$test_prereq"
 486                 then
 487                         of_prereq=" of $test_prereq"
 488                 fi
 489
 490                 say_color skip >&3 "skipping test: $@"
 491                 say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 492                 : true
 493                 ;;
 494         *)
 495                 false
 496                 ;;
 497         esac
 498 }
 499
 500 test_expect_failure () {
 501         test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
 502         test "$#" = 2 ||
 503         error "bug in the test script: not 2 or 3 parameters to test-expect-failure"
 504         export test_prereq
 505         if ! test_skip "$@"
 506         then
 507                 say >&3 "checking known breakage: $2"
 508                 test_run_ "$2"
 509                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 510                 then
 511                         test_known_broken_ok_ "$1"
 512                 else
 513                         test_known_broken_failure_ "$1"
 514                 fi
 515         fi
 516         echo >&3 ""
 517 }
 518
 519 test_expect_success () {
 520         test "$#" = 3 && { test_prereq=$1; shift; } || test_prereq=
 521         test "$#" = 2 ||
 522         error "bug in the test script: not 2 or 3 parameters to test-expect-success"
 523         export test_prereq
 524         if ! test_skip "$@"
 525         then
 526                 say >&3 "expecting success: $2"
 527                 test_run_ "$2"
 528                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 529                 then
 530                         test_ok_ "$1"
 531                 else
 532                         test_failure_ "$@"
 533                 fi
 534         fi
 535         echo >&3 ""
 536 }
 537
 538 # test_external runs external test scripts that provide continuous
 539 # test output about their progress, and succeeds/fails on
 540 # zero/non-zero exit code.  It outputs the test output on stdout even
 541 # in non-verbose mode, and announces the external script with "# run
 542 # <n>: ..." before running it.  When providing relative paths, keep in
 543 # mind that all scripts run in "trash directory".
 544 # Usage: test_external description command arguments...
 545 # Example: test_external 'Perl API' perl ../path/to/test.pl
 546 test_external () {
 547         test "$#" = 4 && { test_prereq=$1; shift; } || test_prereq=
 548         test "$#" = 3 ||
 549         error >&5 "bug in the test script: not 3 or 4 parameters to test_external"
 550         descr="$1"
 551         shift
 552         export test_prereq
 553         if ! test_skip "$descr" "$@"
 554         then
 555                 # Announce the script to reduce confusion about the
 556                 # test output that follows.
 557                 say_color "" "# run $test_count: $descr ($*)"
 558                 # Export TEST_DIRECTORY, TRASH_DIRECTORY and GIT_TEST_LONG
 559                 # to be able to use them in script
 560                 export TEST_DIRECTORY TRASH_DIRECTORY GIT_TEST_LONG
 561                 # Run command; redirect its stderr to &4 as in
 562                 # test_run_, but keep its stdout on our stdout even in
 563                 # non-verbose mode.
 564                 "$@" 2>&4
 565                 if [ "$?" = 0 ]
 566                 then
 567                         if test $test_external_has_tap -eq 0; then
 568                                 test_ok_ "$descr"
 569                         else
 570                                 say_color "" "# test_external test $descr was ok"
 571                                 test_success=$(($test_success + 1))
 572                         fi
 573                 else
 574                         if test $test_external_has_tap -eq 0; then
 575                                 test_failure_ "$descr" "$@"
 576                         else
 577                                 say_color error "# test_external test $descr failed: $@"
 578                                 test_failure=$(($test_failure + 1))
 579                         fi
 580                 fi
 581         fi
 582 }
 583
 584 # Like test_external, but in addition tests that the command generated
 585 # no output on stderr.
 586 test_external_without_stderr () {
 587         # The temporary file has no (and must have no) security
 588         # implications.
 589         tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 590         stderr="$tmp/git-external-stderr.$$.tmp"
 591         test_external "$@" 4> "$stderr"
 592         [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 593         descr="no stderr: $1"
 594         shift
 595         say >&3 "# expecting no stderr from previous command"
 596         if [ ! -s "$stderr" ]; then
 597                 rm "$stderr"
 598
 599                 if test $test_external_has_tap -eq 0; then
 600                         test_ok_ "$descr"
 601                 else
 602                         say_color "" "# test_external_without_stderr test $descr was ok"
 603                         test_success=$(($test_success + 1))
 604                 fi
 605         else
 606                 if [ "$verbose" = t ]; then
 607                         output=`echo; echo "# Stderr is:"; cat "$stderr"`
 608                 else
 609                         output=
 610                 fi
 611                 # rm first in case test_failure exits.
 612                 rm "$stderr"
 613                 if test $test_external_has_tap -eq 0; then
 614                         test_failure_ "$descr" "$@" "$output"
 615                 else
 616                         say_color error "# test_external_without_stderr test $descr failed: $@: $output"
 617                         test_failure=$(($test_failure + 1))
 618                 fi
 619         fi
 620 }
 621
 622 # debugging-friendly alternatives to "test [-f|-d|-e]"
 623 # The commands test the existence or non-existence of $1. $2 can be
 624 # given to provide a more precise diagnosis.
 625 test_path_is_file () {
 626         if ! [ -f "$1" ]
 627         then
 628                 echo "File $1 doesn't exist. $*"
 629                 false
 630         fi
 631 }
 632
 633 test_path_is_dir () {
 634         if ! [ -d "$1" ]
 635         then
 636                 echo "Directory $1 doesn't exist. $*"
 637                 false
 638         fi
 639 }
 640
 641 test_path_is_missing () {
 642         if [ -e "$1" ]
 643         then
 644                 echo "Path exists:"
 645                 ls -ld "$1"
 646                 if [ $# -ge 1 ]; then
 647                         echo "$*"
 648                 fi
 649                 false
 650         fi
 651 }
 652
 653 # test_line_count checks that a file has the number of lines it
 654 # ought to. For example:
 655 #
 656 #       test_expect_success 'produce exactly one line of output' '
 657 #               do something >output &&
 658 #               test_line_count = 1 output
 659 #       '
 660 #
 661 # is like "test $(wc -l <output) = 1" except that it passes the
 662 # output through when the number of lines is wrong.
 663
 664 test_line_count () {
 665         if test $# != 3
 666         then
 667                 error "bug in the test script: not 3 parameters to test_line_count"
 668         elif ! test $(wc -l <"$3") "$1" "$2"
 669         then
 670                 echo "test_line_count: line count for $3 !$1 $2"
 671                 cat "$3"
 672                 return 1
 673         fi
 674 }
 675
 676 # This is not among top-level (test_expect_success | test_expect_failure)
 677 # but is a prefix that can be used in the test script, like:
 678 #
 679 #       test_expect_success 'complain and die' '
 680 #           do something &&
 681 #           do something else &&
 682 #           test_must_fail git checkout ../outerspace
 683 #       '
 684 #
 685 # Writing this as "! git checkout ../outerspace" is wrong, because
 686 # the failure could be due to a segv.  We want a controlled failure.
 687
 688 test_must_fail () {
 689         "$@"
 690         exit_code=$?
 691         if test $exit_code = 0; then
 692                 echo >&2 "test_must_fail: command succeeded: $*"
 693                 return 1
 694         elif test $exit_code -gt 129 -a $exit_code -le 192; then
 695                 echo >&2 "test_must_fail: died by signal: $*"
 696                 return 1
 697         elif test $exit_code = 127; then
 698                 echo >&2 "test_must_fail: command not found: $*"
 699                 return 1
 700         fi
 701         return 0
 702 }
 703
 704 # Similar to test_must_fail, but tolerates success, too.  This is
 705 # meant to be used in contexts like:
 706 #
 707 #       test_expect_success 'some command works without configuration' '
 708 #               test_might_fail git config --unset all.configuration &&
 709 #               do something
 710 #       '
 711 #
 712 # Writing "git config --unset all.configuration || :" would be wrong,
 713 # because we want to notice if it fails due to segv.
 714
 715 test_might_fail () {
 716         "$@"
 717         exit_code=$?
 718         if test $exit_code -gt 129 -a $exit_code -le 192; then
 719                 echo >&2 "test_might_fail: died by signal: $*"
 720                 return 1
 721         elif test $exit_code = 127; then
 722                 echo >&2 "test_might_fail: command not found: $*"
 723                 return 1
 724         fi
 725         return 0
 726 }
 727
 728 # Similar to test_must_fail and test_might_fail, but check that a
 729 # given command exited with a given exit code. Meant to be used as:
 730 #
 731 #       test_expect_success 'Merge with d/f conflicts' '
 732 #               test_expect_code 1 git merge "merge msg" B master
 733 #       '
 734
 735 test_expect_code () {
 736         want_code=$1
 737         shift
 738         "$@"
 739         exit_code=$?
 740         if test $exit_code = $want_code
 741         then
 742                 echo >&2 "test_expect_code: command exited with $exit_code: $*"
 743                 return 0
 744         else
 745                 echo >&2 "test_expect_code: command exited with $exit_code, we wanted $want_code $*"
 746                 return 1
 747         fi
 748 }
 749
 750 # test_cmp is a helper function to compare actual and expected output.
 751 # You can use it like:
 752 #
 753 #       test_expect_success 'foo works' '
 754 #               echo expected >expected &&
 755 #               foo >actual &&
 756 #               test_cmp expected actual
 757 #       '
 758 #
 759 # This could be written as either "cmp" or "diff -u", but:
 760 # - cmp's output is not nearly as easy to read as diff -u
 761 # - not all diff versions understand "-u"
 762
 763 test_cmp() {
 764         $GIT_TEST_CMP "$@"
 765 }
 766
 767 # This function can be used to schedule some commands to be run
 768 # unconditionally at the end of the test to restore sanity:
 769 #
 770 #       test_expect_success 'test core.capslock' '
 771 #               git config core.capslock true &&
 772 #               test_when_finished "git config --unset core.capslock" &&
 773 #               hello world
 774 #       '
 775 #
 776 # That would be roughly equivalent to
 777 #
 778 #       test_expect_success 'test core.capslock' '
 779 #               git config core.capslock true &&
 780 #               hello world
 781 #               git config --unset core.capslock
 782 #       '
 783 #
 784 # except that the greeting and config --unset must both succeed for
 785 # the test to pass.
 786
 787 test_when_finished () {
 788         test_cleanup="{ $*
 789                 } && (exit \"\$eval_ret\"); eval_ret=\$?; $test_cleanup"
 790 }
 791
 792 # Most tests can use the created repository, but some may need to create more.
 793 # Usage: test_create_repo <directory>
 794 test_create_repo () {
 795         test "$#" = 1 ||
 796         error "bug in the test script: not 1 parameter to test-create-repo"
 797         repo="$1"
 798         mkdir -p "$repo"
 799         (
 800                 cd "$repo" || error "Cannot setup test environment"
 801                 "$GIT_EXEC_PATH/git-init" "--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 ||
 802                 error "cannot run git init -- have you built things yet?"
 803                 mv .git/hooks .git/hooks-disabled
 804         ) || exit
 805 }
 806
 807 test_done () {
 808         GIT_EXIT_OK=t
 809
 810         if test -z "$HARNESS_ACTIVE"; then
 811                 test_results_dir="$TEST_DIRECTORY/test-results"
 812                 mkdir -p "$test_results_dir"
 813                 test_results_path="$test_results_dir/${0%.sh}-$$.counts"
 814
 815                 echo "total $test_count" >> $test_results_path
 816                 echo "success $test_success" >> $test_results_path
 817                 echo "fixed $test_fixed" >> $test_results_path
 818                 echo "broken $test_broken" >> $test_results_path
 819                 echo "failed $test_failure" >> $test_results_path
 820                 echo "" >> $test_results_path
 821         fi
 822
 823         if test "$test_fixed" != 0
 824         then
 825                 say_color pass "# fixed $test_fixed known breakage(s)"
 826         fi
 827         if test "$test_broken" != 0
 828         then
 829                 say_color error "# still have $test_broken known breakage(s)"
 830                 msg="remaining $(($test_count-$test_broken)) test(s)"
 831         else
 832                 msg="$test_count test(s)"
 833         fi
 834         case "$test_failure" in
 835         0)
 836                 # Maybe print SKIP message
 837                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 838
 839                 if test $test_external_has_tap -eq 0; then
 840                         say_color pass "# passed all $msg"
 841                         say "1..$test_count$skip_all"
 842                 fi
 843
 844                 test -d "$remove_trash" &&
 845                 cd "$(dirname "$remove_trash")" &&
 846                 rm -rf "$(basename "$remove_trash")"
 847
 848                 exit 0 ;;
 849
 850         *)
 851                 if test $test_external_has_tap -eq 0; then
 852                         say_color error "# failed $test_failure among $msg"
 853                         say "1..$test_count"
 854                 fi
 855
 856                 exit 1 ;;
 857
 858         esac
 859 }
 860
 861 # Test the binaries we have just built.  The tests are kept in
 862 # t/ subdirectory and are run in 'trash directory' subdirectory.
 863 if test -z "$TEST_DIRECTORY"
 864 then
 865         # We allow tests to override this, in case they want to run tests
 866         # outside of t/, e.g. for running tests on the test library
 867         # itself.
 868         TEST_DIRECTORY=$(pwd)
 869 fi
 870 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
 871
 872 if test -n "$valgrind"
 873 then
 874         make_symlink () {
 875                 test -h "$2" &&
 876                 test "$1" = "$(readlink "$2")" || {
 877                         # be super paranoid
 878                         if mkdir "$2".lock
 879                         then
 880                                 rm -f "$2" &&
 881                                 ln -s "$1" "$2" &&
 882                                 rm -r "$2".lock
 883                         else
 884                                 while test -d "$2".lock
 885                                 do
 886                                         say "Waiting for lock on $2."
 887                                         sleep 1
 888                                 done
 889                         fi
 890                 }
 891         }
 892
 893         make_valgrind_symlink () {
 894                 # handle only executables
 895                 test -x "$1" || return
 896
 897                 base=$(basename "$1")
 898                 symlink_target=$GIT_BUILD_DIR/$base
 899                 # do not override scripts
 900                 if test -x "$symlink_target" &&
 901                     test ! -d "$symlink_target" &&
 902                     test "#!" != "$(head -c 2 < "$symlink_target")"
 903                 then
 904                         symlink_target=../valgrind.sh
 905                 fi
 906                 case "$base" in
 907                 *.sh|*.perl)
 908                         symlink_target=../unprocessed-script
 909                 esac
 910                 # create the link, or replace it if it is out of date
 911                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 912         }
 913
 914         # override all git executables in TEST_DIRECTORY/..
 915         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 916         mkdir -p "$GIT_VALGRIND"/bin
 917         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 918         do
 919                 make_valgrind_symlink $file
 920         done
 921         OLDIFS=$IFS
 922         IFS=:
 923         for path in $PATH
 924         do
 925                 ls "$path"/git-* 2> /dev/null |
 926                 while read file
 927                 do
 928                         make_valgrind_symlink "$file"
 929                 done
 930         done
 931         IFS=$OLDIFS
 932         PATH=$GIT_VALGRIND/bin:$PATH
 933         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 934         export GIT_VALGRIND
 935 elif test -n "$GIT_TEST_INSTALLED" ; then
 936         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 937         error "Cannot run git from $GIT_TEST_INSTALLED."
 938         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 939         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 940 else # normal case, use ../bin-wrappers only unless $with_dashes:
 941         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 942         if ! test -x "$git_bin_dir/git" ; then
 943                 if test -z "$with_dashes" ; then
 944                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 945                 fi
 946                 with_dashes=t
 947         fi
 948         PATH="$git_bin_dir:$PATH"
 949         GIT_EXEC_PATH=$GIT_BUILD_DIR
 950         if test -n "$with_dashes" ; then
 951                 PATH="$GIT_BUILD_DIR:$PATH"
 952         fi
 953 fi
 954 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 955 unset GIT_CONFIG
 956 GIT_CONFIG_NOSYSTEM=1
 957 GIT_CONFIG_NOGLOBAL=1
 958 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 959
 960 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
 961
 962 if test -z "$GIT_TEST_CMP"
 963 then
 964         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 965         then
 966                 GIT_TEST_CMP="$DIFF -c"
 967         else
 968                 GIT_TEST_CMP="$DIFF -u"
 969         fi
 970 fi
 971
 972 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 973 export GITPERLLIB
 974 test -d "$GIT_BUILD_DIR"/templates/blt || {
 975         error "You haven't built things yet, have you?"
 976 }
 977
 978 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 979 then
 980         GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
 981         export GITPYTHONLIB
 982         test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
 983                 error "You haven't built git_remote_helpers yet, have you?"
 984         }
 985 fi
 986
 987 if ! test -x "$GIT_BUILD_DIR"/test-chmtime; then
 988         echo >&2 'You need to build test-chmtime:'
 989         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 990         exit 1
 991 fi
 992
 993 # Test repository
 994 test="trash directory.$(basename "$0" .sh)"
 995 test -n "$root" && test="$root/$test"
 996 case "$test" in
 997 /*) TRASH_DIRECTORY="$test" ;;
 998  *) TRASH_DIRECTORY="$TEST_DIRECTORY/$test" ;;
 999 esac
1000 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
1001 rm -fr "$test" || {
1002         GIT_EXIT_OK=t
1003         echo >&5 "FATAL: Cannot prepare test area"
1004         exit 1
1005 }
1006
1007 test_create_repo "$test"
1008 # Use -P to resolve symlinks in our working directory so that the cwd
1009 # in subprocesses like git equals our $PWD (for pathname comparisons).
1010 cd -P "$test" || exit 1
1011
1012 HOME=$(pwd)
1013 export HOME
1014
1015 this_test=${0##*/}
1016 this_test=${this_test%%-*}
1017 for skp in $GIT_SKIP_TESTS
1018 do
1019         case "$this_test" in
1020         $skp)
1021                 say_color skip >&3 "skipping test $this_test altogether"
1022                 skip_all="skip all tests in $this_test"
1023                 test_done
1024         esac
1025 done
1026
1027 # Provide an implementation of the 'yes' utility
1028 yes () {
1029         if test $# = 0
1030         then
1031                 y=y
1032         else
1033                 y="$*"
1034         fi
1035
1036         while echo "$y"
1037         do
1038                 :
1039         done
1040 }
1041
1042 # Fix some commands on Windows
1043 case $(uname -s) in
1044 *MINGW*)
1045         # Windows has its own (incompatible) sort and find
1046         sort () {
1047                 /usr/bin/sort "$@"
1048         }
1049         find () {
1050                 /usr/bin/find "$@"
1051         }
1052         sum () {
1053                 md5sum "$@"
1054         }
1055         # git sees Windows-style pwd
1056         pwd () {
1057                 builtin pwd -W
1058         }
1059         # no POSIX permissions
1060         # backslashes in pathspec are converted to '/'
1061         # exec does not inherit the PID
1062         test_set_prereq MINGW
1063         test_set_prereq SED_STRIPS_CR
1064         ;;
1065 *CYGWIN*)
1066         test_set_prereq POSIXPERM
1067         test_set_prereq EXECKEEPSPID
1068         test_set_prereq NOT_MINGW
1069         test_set_prereq SED_STRIPS_CR
1070         ;;
1071 *)
1072         test_set_prereq POSIXPERM
1073         test_set_prereq BSLASHPSPEC
1074         test_set_prereq EXECKEEPSPID
1075         test_set_prereq NOT_MINGW
1076         ;;
1077 esac
1078
1079 test -z "$NO_PERL" && test_set_prereq PERL
1080 test -z "$NO_PYTHON" && test_set_prereq PYTHON
1081
1082 # test whether the filesystem supports symbolic links
1083 ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
1084 rm -f y
1085
1086 # When the tests are run as root, permission tests will report that
1087 # things are writable when they shouldn't be.
1088 test -w / || test_set_prereq SANITY