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 EMAIL
  47 unset LANGUAGE
  48 unset $(perl -e '
  49         my @env = keys %ENV;
  50         my $ok = join("|", qw(
  51                 TRACE
  52                 DEBUG
  53                 USE_LOOKUP
  54                 TEST
  55                 .*_TEST
  56                 PROVE
  57                 VALGRIND
  58                 PERF_AGGREGATING_LATER
  59         ));
  60         my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
  61         print join("\n", @vars);
  62 ')
  63 GIT_AUTHOR_EMAIL=author@example.com
  64 GIT_AUTHOR_NAME='A U Thor'
  65 GIT_COMMITTER_EMAIL=committer@example.com
  66 GIT_COMMITTER_NAME='C O Mitter'
  67 GIT_MERGE_VERBOSITY=5
  68 GIT_MERGE_AUTOEDIT=no
  69 export GIT_MERGE_VERBOSITY GIT_MERGE_AUTOEDIT
  70 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  71 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  72 export EDITOR
  73
  74 # Protect ourselves from common misconfiguration to export
  75 # CDPATH into the environment
  76 unset CDPATH
  77
  78 unset GREP_OPTIONS
  79
  80 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  81         1|2|true)
  82                 echo "* warning: Some tests will not work if GIT_TRACE" \
  83                         "is set as to trace on STDERR ! *"
  84                 echo "* warning: Please set GIT_TRACE to something" \
  85                         "other than 1, 2 or true ! *"
  86                 ;;
  87 esac
  88
  89 # Convenience
  90 #
  91 # A regexp to match 5 and 40 hexdigits
  92 _x05='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
  93 _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
  94
  95 # Zero SHA-1
  96 _z40=0000000000000000000000000000000000000000
  97
  98 # Line feed
  99 LF='
 100 '
 101
 102 export _x05 _x40 _z40 LF
 103
 104 # Each test should start with something like this, after copyright notices:
 105 #
 106 # test_description='Description of this test...
 107 # This test checks if command xyzzy does the right thing...
 108 # '
 109 # . ./test-lib.sh
 110 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
 111                 TERM=$ORIGINAL_TERM &&
 112                 export TERM &&
 113                 [ -t 1 ] &&
 114                 tput bold >/dev/null 2>&1 &&
 115                 tput setaf 1 >/dev/null 2>&1 &&
 116                 tput sgr0 >/dev/null 2>&1
 117         ) &&
 118         color=t
 119
 120 while test "$#" -ne 0
 121 do
 122         case "$1" in
 123         -d|--d|--de|--deb|--debu|--debug)
 124                 debug=t; shift ;;
 125         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
 126                 immediate=t; shift ;;
 127         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 128                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 129         -h|--h|--he|--hel|--help)
 130                 help=t; shift ;;
 131         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 132                 verbose=t; shift ;;
 133         -q|--q|--qu|--qui|--quie|--quiet)
 134                 # Ignore --quiet under a TAP::Harness. Saying how many tests
 135                 # passed without the ok/not ok details is always an error.
 136                 test -z "$HARNESS_ACTIVE" && quiet=t; shift ;;
 137         --with-dashes)
 138                 with_dashes=t; shift ;;
 139         --no-color)
 140                 color=; shift ;;
 141         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 142                 valgrind=t; verbose=t; shift ;;
 143         --tee)
 144                 shift ;; # was handled already
 145         --root=*)
 146                 root=$(expr "z$1" : 'z[^=]*=\(.*\)')
 147                 shift ;;
 148         *)
 149                 echo "error: unknown test option '$1'" >&2; exit 1 ;;
 150         esac
 151 done
 152
 153 if test -n "$color"; then
 154         say_color () {
 155                 (
 156                 TERM=$ORIGINAL_TERM
 157                 export TERM
 158                 case "$1" in
 159                         error) tput bold; tput setaf 1;; # bold red
 160                         skip)  tput bold; tput setaf 2;; # bold green
 161                         pass)  tput setaf 2;;            # green
 162                         info)  tput setaf 3;;            # brown
 163                         *) test -n "$quiet" && return;;
 164                 esac
 165                 shift
 166                 printf "%s" "$*"
 167                 tput sgr0
 168                 echo
 169                 )
 170         }
 171 else
 172         say_color() {
 173                 test -z "$1" && test -n "$quiet" && return
 174                 shift
 175                 echo "$*"
 176         }
 177 fi
 178
 179 error () {
 180         say_color error "error: $*"
 181         GIT_EXIT_OK=t
 182         exit 1
 183 }
 184
 185 say () {
 186         say_color info "$*"
 187 }
 188
 189 test "${test_description}" != "" ||
 190 error "Test script did not set test_description."
 191
 192 if test "$help" = "t"
 193 then
 194         echo "$test_description"
 195         exit 0
 196 fi
 197
 198 exec 5>&1
 199 exec 6<&0
 200 if test "$verbose" = "t"
 201 then
 202         exec 4>&2 3>&1
 203 else
 204         exec 4>/dev/null 3>/dev/null
 205 fi
 206
 207 test_failure=0
 208 test_count=0
 209 test_fixed=0
 210 test_broken=0
 211 test_success=0
 212
 213 test_external_has_tap=0
 214
 215 die () {
 216         code=$?
 217         if test -n "$GIT_EXIT_OK"
 218         then
 219                 exit $code
 220         else
 221                 echo >&5 "FATAL: Unexpected exit with code $code"
 222                 exit 1
 223         fi
 224 }
 225
 226 GIT_EXIT_OK=
 227 trap 'die' EXIT
 228
 229 # The user-facing functions are loaded from a separate file so that
 230 # test_perf subshells can have them too
 231 . "${TEST_DIRECTORY:-.}"/test-lib-functions.sh
 232
 233 # You are not expected to call test_ok_ and test_failure_ directly, use
 234 # the text_expect_* functions instead.
 235
 236 test_ok_ () {
 237         test_success=$(($test_success + 1))
 238         say_color "" "ok $test_count - $@"
 239 }
 240
 241 test_failure_ () {
 242         test_failure=$(($test_failure + 1))
 243         say_color error "not ok - $test_count $1"
 244         shift
 245         echo "$@" | sed -e 's/^/#       /'
 246         test "$immediate" = "" || { GIT_EXIT_OK=t; exit 1; }
 247 }
 248
 249 test_known_broken_ok_ () {
 250         test_fixed=$(($test_fixed+1))
 251         say_color "" "ok $test_count - $@ # TODO known breakage"
 252 }
 253
 254 test_known_broken_failure_ () {
 255         test_broken=$(($test_broken+1))
 256         say_color skip "not ok $test_count - $@ # TODO known breakage"
 257 }
 258
 259 test_debug () {
 260         test "$debug" = "" || eval "$1"
 261 }
 262
 263 test_eval_ () {
 264         # This is a separate function because some tests use
 265         # "return" to end a test_expect_success block early.
 266         eval </dev/null >&3 2>&4 "$*"
 267 }
 268
 269 test_run_ () {
 270         test_cleanup=:
 271         expecting_failure=$2
 272         test_eval_ "$1"
 273         eval_ret=$?
 274
 275         if test -z "$immediate" || test $eval_ret = 0 || test -n "$expecting_failure"
 276         then
 277                 test_eval_ "$test_cleanup"
 278         fi
 279         if test "$verbose" = "t" && test -n "$HARNESS_ACTIVE"; then
 280                 echo ""
 281         fi
 282         return "$eval_ret"
 283 }
 284
 285 test_skip () {
 286         test_count=$(($test_count+1))
 287         to_skip=
 288         for skp in $GIT_SKIP_TESTS
 289         do
 290                 case $this_test.$test_count in
 291                 $skp)
 292                         to_skip=t
 293                         break
 294                 esac
 295         done
 296         if test -z "$to_skip" && test -n "$test_prereq" &&
 297            ! test_have_prereq "$test_prereq"
 298         then
 299                 to_skip=t
 300         fi
 301         case "$to_skip" in
 302         t)
 303                 of_prereq=
 304                 if test "$missing_prereq" != "$test_prereq"
 305                 then
 306                         of_prereq=" of $test_prereq"
 307                 fi
 308
 309                 say_color skip >&3 "skipping test: $@"
 310                 say_color skip "ok $test_count # skip $1 (missing $missing_prereq${of_prereq})"
 311                 : true
 312                 ;;
 313         *)
 314                 false
 315                 ;;
 316         esac
 317 }
 318
 319 # stub; perf-lib overrides it
 320 test_at_end_hook_ () {
 321         :
 322 }
 323
 324 test_done () {
 325         GIT_EXIT_OK=t
 326
 327         if test -z "$HARNESS_ACTIVE"; then
 328                 test_results_dir="$TEST_OUTPUT_DIRECTORY/test-results"
 329                 mkdir -p "$test_results_dir"
 330                 test_results_path="$test_results_dir/${0%.sh}-$$.counts"
 331
 332                 cat >>"$test_results_path" <<-EOF
 333                 total $test_count
 334                 success $test_success
 335                 fixed $test_fixed
 336                 broken $test_broken
 337                 failed $test_failure
 338
 339                 EOF
 340         fi
 341
 342         if test "$test_fixed" != 0
 343         then
 344                 say_color pass "# fixed $test_fixed known breakage(s)"
 345         fi
 346         if test "$test_broken" != 0
 347         then
 348                 say_color error "# still have $test_broken known breakage(s)"
 349                 msg="remaining $(($test_count-$test_broken)) test(s)"
 350         else
 351                 msg="$test_count test(s)"
 352         fi
 353         case "$test_failure" in
 354         0)
 355                 # Maybe print SKIP message
 356                 [ -z "$skip_all" ] || skip_all=" # SKIP $skip_all"
 357
 358                 if test $test_external_has_tap -eq 0; then
 359                         say_color pass "# passed all $msg"
 360                         say "1..$test_count$skip_all"
 361                 fi
 362
 363                 test -d "$remove_trash" &&
 364                 cd "$(dirname "$remove_trash")" &&
 365                 rm -rf "$(basename "$remove_trash")"
 366
 367                 test_at_end_hook_
 368
 369                 exit 0 ;;
 370
 371         *)
 372                 if test $test_external_has_tap -eq 0; then
 373                         say_color error "# failed $test_failure among $msg"
 374                         say "1..$test_count"
 375                 fi
 376
 377                 exit 1 ;;
 378
 379         esac
 380 }
 381
 382 # Test the binaries we have just built.  The tests are kept in
 383 # t/ subdirectory and are run in 'trash directory' subdirectory.
 384 if test -z "$TEST_DIRECTORY"
 385 then
 386         # We allow tests to override this, in case they want to run tests
 387         # outside of t/, e.g. for running tests on the test library
 388         # itself.
 389         TEST_DIRECTORY=$(pwd)
 390 fi
 391 if test -z "$TEST_OUTPUT_DIRECTORY"
 392 then
 393         # Similarly, override this to store the test-results subdir
 394         # elsewhere
 395         TEST_OUTPUT_DIRECTORY=$TEST_DIRECTORY
 396 fi
 397 GIT_BUILD_DIR="$TEST_DIRECTORY"/..
 398
 399 if test -n "$valgrind"
 400 then
 401         make_symlink () {
 402                 test -h "$2" &&
 403                 test "$1" = "$(readlink "$2")" || {
 404                         # be super paranoid
 405                         if mkdir "$2".lock
 406                         then
 407                                 rm -f "$2" &&
 408                                 ln -s "$1" "$2" &&
 409                                 rm -r "$2".lock
 410                         else
 411                                 while test -d "$2".lock
 412                                 do
 413                                         say "Waiting for lock on $2."
 414                                         sleep 1
 415                                 done
 416                         fi
 417                 }
 418         }
 419
 420         make_valgrind_symlink () {
 421                 # handle only executables, unless they are shell libraries that
 422                 # need to be in the exec-path.  We will just use "#!" as a
 423                 # guess for a shell-script, since we have no idea what the user
 424                 # may have configured as the shell path.
 425                 test -x "$1" ||
 426                 test "#!" = "$(head -c 2 <"$1")" ||
 427                 return;
 428
 429                 base=$(basename "$1")
 430                 symlink_target=$GIT_BUILD_DIR/$base
 431                 # do not override scripts
 432                 if test -x "$symlink_target" &&
 433                     test ! -d "$symlink_target" &&
 434                     test "#!" != "$(head -c 2 < "$symlink_target")"
 435                 then
 436                         symlink_target=../valgrind.sh
 437                 fi
 438                 case "$base" in
 439                 *.sh|*.perl)
 440                         symlink_target=../unprocessed-script
 441                 esac
 442                 # create the link, or replace it if it is out of date
 443                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 444         }
 445
 446         # override all git executables in TEST_DIRECTORY/..
 447         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 448         mkdir -p "$GIT_VALGRIND"/bin
 449         for file in $GIT_BUILD_DIR/git* $GIT_BUILD_DIR/test-*
 450         do
 451                 make_valgrind_symlink $file
 452         done
 453         # special-case the mergetools loadables
 454         make_symlink "$GIT_BUILD_DIR"/mergetools "$GIT_VALGRIND/bin/mergetools"
 455         OLDIFS=$IFS
 456         IFS=:
 457         for path in $PATH
 458         do
 459                 ls "$path"/git-* 2> /dev/null |
 460                 while read file
 461                 do
 462                         make_valgrind_symlink "$file"
 463                 done
 464         done
 465         IFS=$OLDIFS
 466         PATH=$GIT_VALGRIND/bin:$PATH
 467         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 468         export GIT_VALGRIND
 469 elif test -n "$GIT_TEST_INSTALLED" ; then
 470         GIT_EXEC_PATH=$($GIT_TEST_INSTALLED/git --exec-path)  ||
 471         error "Cannot run git from $GIT_TEST_INSTALLED."
 472         PATH=$GIT_TEST_INSTALLED:$GIT_BUILD_DIR:$PATH
 473         GIT_EXEC_PATH=${GIT_TEST_EXEC_PATH:-$GIT_EXEC_PATH}
 474 else # normal case, use ../bin-wrappers only unless $with_dashes:
 475         git_bin_dir="$GIT_BUILD_DIR/bin-wrappers"
 476         if ! test -x "$git_bin_dir/git" ; then
 477                 if test -z "$with_dashes" ; then
 478                         say "$git_bin_dir/git is not executable; using GIT_EXEC_PATH"
 479                 fi
 480                 with_dashes=t
 481         fi
 482         PATH="$git_bin_dir:$PATH"
 483         GIT_EXEC_PATH=$GIT_BUILD_DIR
 484         if test -n "$with_dashes" ; then
 485                 PATH="$GIT_BUILD_DIR:$PATH"
 486         fi
 487 fi
 488 GIT_TEMPLATE_DIR="$GIT_BUILD_DIR"/templates/blt
 489 unset GIT_CONFIG
 490 GIT_CONFIG_NOSYSTEM=1
 491 GIT_ATTR_NOSYSTEM=1
 492 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_ATTR_NOSYSTEM
 493
 494 . "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
 495
 496 if test -z "$GIT_TEST_CMP"
 497 then
 498         if test -n "$GIT_TEST_CMP_USE_COPIED_CONTEXT"
 499         then
 500                 GIT_TEST_CMP="$DIFF -c"
 501         else
 502                 GIT_TEST_CMP="$DIFF -u"
 503         fi
 504 fi
 505
 506 GITPERLLIB="$GIT_BUILD_DIR"/perl/blib/lib:"$GIT_BUILD_DIR"/perl/blib/arch/auto/Git
 507 export GITPERLLIB
 508 test -d "$GIT_BUILD_DIR"/templates/blt || {
 509         error "You haven't built things yet, have you?"
 510 }
 511
 512 if test -z "$GIT_TEST_INSTALLED" && test -z "$NO_PYTHON"
 513 then
 514         GITPYTHONLIB="$GIT_BUILD_DIR/git_remote_helpers/build/lib"
 515         export GITPYTHONLIB
 516         test -d "$GIT_BUILD_DIR"/git_remote_helpers/build || {
 517                 error "You haven't built git_remote_helpers yet, have you?"
 518         }
 519 fi
 520
 521 if ! test -x "$GIT_BUILD_DIR"/test-chmtime; then
 522         echo >&2 'You need to build test-chmtime:'
 523         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 524         exit 1
 525 fi
 526
 527 # Test repository
 528 test="trash directory.$(basename "$0" .sh)"
 529 test -n "$root" && test="$root/$test"
 530 case "$test" in
 531 /*) TRASH_DIRECTORY="$test" ;;
 532  *) TRASH_DIRECTORY="$TEST_OUTPUT_DIRECTORY/$test" ;;
 533 esac
 534 test ! -z "$debug" || remove_trash=$TRASH_DIRECTORY
 535 rm -fr "$test" || {
 536         GIT_EXIT_OK=t
 537         echo >&5 "FATAL: Cannot prepare test area"
 538         exit 1
 539 }
 540
 541 HOME="$TRASH_DIRECTORY"
 542 export HOME
 543
 544 if test -z "$TEST_NO_CREATE_REPO"; then
 545         test_create_repo "$test"
 546 else
 547         mkdir -p "$test"
 548 fi
 549 # Use -P to resolve symlinks in our working directory so that the cwd
 550 # in subprocesses like git equals our $PWD (for pathname comparisons).
 551 cd -P "$test" || exit 1
 552
 553 this_test=${0##*/}
 554 this_test=${this_test%%-*}
 555 for skp in $GIT_SKIP_TESTS
 556 do
 557         case "$this_test" in
 558         $skp)
 559                 say_color skip >&3 "skipping test $this_test altogether"
 560                 skip_all="skip all tests in $this_test"
 561                 test_done
 562         esac
 563 done
 564
 565 # Provide an implementation of the 'yes' utility
 566 yes () {
 567         if test $# = 0
 568         then
 569                 y=y
 570         else
 571                 y="$*"
 572         fi
 573
 574         while echo "$y"
 575         do
 576                 :
 577         done
 578 }
 579
 580 # Fix some commands on Windows
 581 case $(uname -s) in
 582 *MINGW*)
 583         # Windows has its own (incompatible) sort and find
 584         sort () {
 585                 /usr/bin/sort "$@"
 586         }
 587         find () {
 588                 /usr/bin/find "$@"
 589         }
 590         sum () {
 591                 md5sum "$@"
 592         }
 593         # git sees Windows-style pwd
 594         pwd () {
 595                 builtin pwd -W
 596         }
 597         # no POSIX permissions
 598         # backslashes in pathspec are converted to '/'
 599         # exec does not inherit the PID
 600         test_set_prereq MINGW
 601         test_set_prereq SED_STRIPS_CR
 602         ;;
 603 *CYGWIN*)
 604         test_set_prereq POSIXPERM
 605         test_set_prereq EXECKEEPSPID
 606         test_set_prereq NOT_MINGW
 607         test_set_prereq SED_STRIPS_CR
 608         ;;
 609 *)
 610         test_set_prereq POSIXPERM
 611         test_set_prereq BSLASHPSPEC
 612         test_set_prereq EXECKEEPSPID
 613         test_set_prereq NOT_MINGW
 614         ;;
 615 esac
 616
 617 test -z "$NO_PERL" && test_set_prereq PERL
 618 test -z "$NO_PYTHON" && test_set_prereq PYTHON
 619 test -n "$USE_LIBPCRE" && test_set_prereq LIBPCRE
 620 test -z "$NO_GETTEXT" && test_set_prereq GETTEXT
 621
 622 # Can we rely on git's output in the C locale?
 623 if test -n "$GETTEXT_POISON"
 624 then
 625         GIT_GETTEXT_POISON=YesPlease
 626         export GIT_GETTEXT_POISON
 627         test_set_prereq GETTEXT_POISON
 628 else
 629         test_set_prereq C_LOCALE_OUTPUT
 630 fi
 631
 632 # Use this instead of test_cmp to compare files that contain expected and
 633 # actual output from git commands that can be translated.  When running
 634 # under GETTEXT_POISON this pretends that the command produced expected
 635 # results.
 636 test_i18ncmp () {
 637         test -n "$GETTEXT_POISON" || test_cmp "$@"
 638 }
 639
 640 # Use this instead of "grep expected-string actual" to see if the
 641 # output from a git command that can be translated either contains an
 642 # expected string, or does not contain an unwanted one.  When running
 643 # under GETTEXT_POISON this pretends that the command produced expected
 644 # results.
 645 test_i18ngrep () {
 646         if test -n "$GETTEXT_POISON"
 647         then
 648             : # pretend success
 649         elif test "x!" = "x$1"
 650         then
 651                 shift
 652                 ! grep "$@"
 653         else
 654                 grep "$@"
 655         fi
 656 }
 657
 658 # test whether the filesystem supports symbolic links
 659 ln -s x y 2>/dev/null && test -h y 2>/dev/null && test_set_prereq SYMLINKS
 660 rm -f y
 661
 662 # When the tests are run as root, permission tests will report that
 663 # things are writable when they shouldn't be.
 664 test -w / || test_set_prereq SANITY