t/test-lib.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 # if --tee was passed, write the output not only to the terminal, but
   7 # additionally to the file test-results/$BASENAME.out, too.
   8 case "$GIT_TEST_TEE_STARTED, $* " in
   9 done,*)
  10         # do not redirect again
  11         ;;
  12 *' --tee '*|*' --va'*)
  13         mkdir -p test-results
  14         BASE=test-results/$(basename "$0" .sh)
  15         (GIT_TEST_TEE_STARTED=done ${SHELL-sh} "$0" "$@" 2>&1;
  16          echo $? > $BASE.exit) | tee $BASE.out
  17         test "$(cat $BASE.exit)" = 0
  18         exit
  19         ;;
  20 esac
  21
  22 # Keep the original TERM for say_color
  23 ORIGINAL_TERM=$TERM
  24
  25 # For repeatability, reset the environment to known value.
  26 LANG=C
  27 LC_ALL=C
  28 PAGER=cat
  29 TZ=UTC
  30 TERM=dumb
  31 export LANG LC_ALL PAGER TERM TZ
  32 EDITOR=:
  33 VISUAL=:
  34 unset GIT_EDITOR
  35 unset AUTHOR_DATE
  36 unset AUTHOR_EMAIL
  37 unset AUTHOR_NAME
  38 unset COMMIT_AUTHOR_EMAIL
  39 unset COMMIT_AUTHOR_NAME
  40 unset EMAIL
  41 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  42 unset GIT_AUTHOR_DATE
  43 GIT_AUTHOR_EMAIL=author@example.com
  44 GIT_AUTHOR_NAME='A U Thor'
  45 unset GIT_COMMITTER_DATE
  46 GIT_COMMITTER_EMAIL=committer@example.com
  47 GIT_COMMITTER_NAME='C O Mitter'
  48 unset GIT_DIFF_OPTS
  49 unset GIT_DIR
  50 unset GIT_WORK_TREE
  51 unset GIT_EXTERNAL_DIFF
  52 unset GIT_INDEX_FILE
  53 unset GIT_OBJECT_DIRECTORY
  54 unset GIT_CEILING_DIRECTORIES
  55 unset SHA1_FILE_DIRECTORIES
  56 unset SHA1_FILE_DIRECTORY
  57 GIT_MERGE_VERBOSITY=5
  58 export GIT_MERGE_VERBOSITY
  59 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  60 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  61 export EDITOR VISUAL
  62 GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
  63
  64 # Protect ourselves from common misconfiguration to export
  65 # CDPATH into the environment
  66 unset CDPATH
  67
  68 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  69         1|2|true)
  70                 echo "* warning: Some tests will not work if GIT_TRACE" \
  71                         "is set as to trace on STDERR ! *"
  72                 echo "* warning: Please set GIT_TRACE to something" \
  73                         "other than 1, 2 or true ! *"
  74                 ;;
  75 esac
  76
  77 # Each test should start with something like this, after copyright notices:
  78 #
  79 # test_description='Description of this test...
  80 # This test checks if command xyzzy does the right thing...
  81 # '
  82 # . ./test-lib.sh
  83 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
  84                 TERM=$ORIGINAL_TERM &&
  85                 export TERM &&
  86                 [ -t 1 ] &&
  87                 tput bold >/dev/null 2>&1 &&
  88                 tput setaf 1 >/dev/null 2>&1 &&
  89                 tput sgr0 >/dev/null 2>&1
  90         ) &&
  91         color=t
  92
  93 while test "$#" -ne 0
  94 do
  95         case "$1" in
  96         -d|--d|--de|--deb|--debu|--debug)
  97                 debug=t; shift ;;
  98         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
  99                 immediate=t; shift ;;
 100         -l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
 101                 GIT_TEST_LONG=t; export GIT_TEST_LONG; shift ;;
 102         -h|--h|--he|--hel|--help)
 103                 help=t; shift ;;
 104         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 105                 verbose=t; shift ;;
 106         -q|--q|--qu|--qui|--quie|--quiet)
 107                 quiet=t; shift ;;
 108         --no-color)
 109                 color=; shift ;;
 110         --no-python)
 111                 # noop now...
 112                 shift ;;
 113         --va|--val|--valg|--valgr|--valgri|--valgrin|--valgrind)
 114                 valgrind=t; verbose=t; shift ;;
 115         --tee)
 116                 shift ;; # was handled already
 117         *)
 118                 break ;;
 119         esac
 120 done
 121
 122 if test -n "$color"; then
 123         say_color () {
 124                 (
 125                 TERM=$ORIGINAL_TERM
 126                 export TERM
 127                 case "$1" in
 128                         error) tput bold; tput setaf 1;; # bold red
 129                         skip)  tput bold; tput setaf 2;; # bold green
 130                         pass)  tput setaf 2;;            # green
 131                         info)  tput setaf 3;;            # brown
 132                         *) test -n "$quiet" && return;;
 133                 esac
 134                 shift
 135                 printf "* %s" "$*"
 136                 tput sgr0
 137                 echo
 138                 )
 139         }
 140 else
 141         say_color() {
 142                 test -z "$1" && test -n "$quiet" && return
 143                 shift
 144                 echo "* $*"
 145         }
 146 fi
 147
 148 error () {
 149         say_color error "error: $*"
 150         trap - EXIT
 151         exit 1
 152 }
 153
 154 say () {
 155         say_color info "$*"
 156 }
 157
 158 test "${test_description}" != "" ||
 159 error "Test script did not set test_description."
 160
 161 if test "$help" = "t"
 162 then
 163         echo "$test_description"
 164         exit 0
 165 fi
 166
 167 exec 5>&1
 168 if test "$verbose" = "t"
 169 then
 170         exec 4>&2 3>&1
 171 else
 172         exec 4>/dev/null 3>/dev/null
 173 fi
 174
 175 test_failure=0
 176 test_count=0
 177 test_fixed=0
 178 test_broken=0
 179 test_success=0
 180
 181 die () {
 182         echo >&5 "FATAL: Unexpected exit with code $?"
 183         exit 1
 184 }
 185
 186 trap 'die' EXIT
 187
 188 # The semantics of the editor variables are that of invoking
 189 # sh -c "$EDITOR \"$@\"" files ...
 190 #
 191 # If our trash directory contains shell metacharacters, they will be
 192 # interpreted if we just set $EDITOR directly, so do a little dance with
 193 # environment variables to work around this.
 194 #
 195 # In particular, quoting isn't enough, as the path may contain the same quote
 196 # that we're using.
 197 test_set_editor () {
 198         FAKE_EDITOR="$1"
 199         export FAKE_EDITOR
 200         VISUAL='"$FAKE_EDITOR"'
 201         export VISUAL
 202 }
 203
 204 test_tick () {
 205         if test -z "${test_tick+set}"
 206         then
 207                 test_tick=1112911993
 208         else
 209                 test_tick=$(($test_tick + 60))
 210         fi
 211         GIT_COMMITTER_DATE="$test_tick -0700"
 212         GIT_AUTHOR_DATE="$test_tick -0700"
 213         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 214 }
 215
 216 # Call test_commit with the arguments "<message> [<file> [<contents>]]"
 217 #
 218 # This will commit a file with the given contents and the given commit
 219 # message.  It will also add a tag with <message> as name.
 220 #
 221 # Both <file> and <contents> default to <message>.
 222
 223 test_commit () {
 224         file=${2:-"$1.t"}
 225         echo "${3-$1}" > "$file" &&
 226         git add "$file" &&
 227         test_tick &&
 228         git commit -m "$1" &&
 229         git tag "$1"
 230 }
 231
 232 # Call test_merge with the arguments "<message> <commit>", where <commit>
 233 # can be a tag pointing to the commit-to-merge.
 234
 235 test_merge () {
 236         test_tick &&
 237         git merge -m "$1" "$2" &&
 238         git tag "$1"
 239 }
 240
 241 # You are not expected to call test_ok_ and test_failure_ directly, use
 242 # the text_expect_* functions instead.
 243
 244 test_ok_ () {
 245         test_count=$(expr "$test_count" + 1)
 246         test_success=$(expr "$test_success" + 1)
 247         say_color "" "  ok $test_count: $@"
 248 }
 249
 250 test_failure_ () {
 251         test_count=$(expr "$test_count" + 1)
 252         test_failure=$(expr "$test_failure" + 1);
 253         say_color error "FAIL $test_count: $1"
 254         shift
 255         echo "$@" | sed -e 's/^/        /'
 256         test "$immediate" = "" || { trap - EXIT; exit 1; }
 257 }
 258
 259 test_known_broken_ok_ () {
 260         test_count=$(expr "$test_count" + 1)
 261         test_fixed=$(($test_fixed+1))
 262         say_color "" "  FIXED $test_count: $@"
 263 }
 264
 265 test_known_broken_failure_ () {
 266         test_count=$(expr "$test_count" + 1)
 267         test_broken=$(($test_broken+1))
 268         say_color skip "  still broken $test_count: $@"
 269 }
 270
 271 test_debug () {
 272         test "$debug" = "" || eval "$1"
 273 }
 274
 275 test_run_ () {
 276         eval >&3 2>&4 "$1"
 277         eval_ret="$?"
 278         return 0
 279 }
 280
 281 test_skip () {
 282         this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
 283         this_test="$this_test.$(expr "$test_count" + 1)"
 284         to_skip=
 285         for skp in $GIT_SKIP_TESTS
 286         do
 287                 case "$this_test" in
 288                 $skp)
 289                         to_skip=t
 290                 esac
 291         done
 292         case "$to_skip" in
 293         t)
 294                 say_color skip >&3 "skipping test: $@"
 295                 test_count=$(expr "$test_count" + 1)
 296                 say_color skip "skip $test_count: $1"
 297                 : true
 298                 ;;
 299         *)
 300                 false
 301                 ;;
 302         esac
 303 }
 304
 305 test_expect_failure () {
 306         test "$#" = 2 ||
 307         error "bug in the test script: not 2 parameters to test-expect-failure"
 308         if ! test_skip "$@"
 309         then
 310                 say >&3 "checking known breakage: $2"
 311                 test_run_ "$2"
 312                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 313                 then
 314                         test_known_broken_ok_ "$1"
 315                 else
 316                     test_known_broken_failure_ "$1"
 317                 fi
 318         fi
 319         echo >&3 ""
 320 }
 321
 322 test_expect_success () {
 323         test "$#" = 2 ||
 324         error "bug in the test script: not 2 parameters to test-expect-success"
 325         if ! test_skip "$@"
 326         then
 327                 say >&3 "expecting success: $2"
 328                 test_run_ "$2"
 329                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 330                 then
 331                         test_ok_ "$1"
 332                 else
 333                         test_failure_ "$@"
 334                 fi
 335         fi
 336         echo >&3 ""
 337 }
 338
 339 test_expect_code () {
 340         test "$#" = 3 ||
 341         error "bug in the test script: not 3 parameters to test-expect-code"
 342         if ! test_skip "$@"
 343         then
 344                 say >&3 "expecting exit code $1: $3"
 345                 test_run_ "$3"
 346                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 347                 then
 348                         test_ok_ "$2"
 349                 else
 350                         test_failure_ "$@"
 351                 fi
 352         fi
 353         echo >&3 ""
 354 }
 355
 356 # test_external runs external test scripts that provide continuous
 357 # test output about their progress, and succeeds/fails on
 358 # zero/non-zero exit code.  It outputs the test output on stdout even
 359 # in non-verbose mode, and announces the external script with "* run
 360 # <n>: ..." before running it.  When providing relative paths, keep in
 361 # mind that all scripts run in "trash directory".
 362 # Usage: test_external description command arguments...
 363 # Example: test_external 'Perl API' perl ../path/to/test.pl
 364 test_external () {
 365         test "$#" -eq 3 ||
 366         error >&5 "bug in the test script: not 3 parameters to test_external"
 367         descr="$1"
 368         shift
 369         if ! test_skip "$descr" "$@"
 370         then
 371                 # Announce the script to reduce confusion about the
 372                 # test output that follows.
 373                 say_color "" " run $(expr "$test_count" + 1): $descr ($*)"
 374                 # Run command; redirect its stderr to &4 as in
 375                 # test_run_, but keep its stdout on our stdout even in
 376                 # non-verbose mode.
 377                 "$@" 2>&4
 378                 if [ "$?" = 0 ]
 379                 then
 380                         test_ok_ "$descr"
 381                 else
 382                         test_failure_ "$descr" "$@"
 383                 fi
 384         fi
 385 }
 386
 387 # Like test_external, but in addition tests that the command generated
 388 # no output on stderr.
 389 test_external_without_stderr () {
 390         # The temporary file has no (and must have no) security
 391         # implications.
 392         tmp="$TMPDIR"; if [ -z "$tmp" ]; then tmp=/tmp; fi
 393         stderr="$tmp/git-external-stderr.$$.tmp"
 394         test_external "$@" 4> "$stderr"
 395         [ -f "$stderr" ] || error "Internal error: $stderr disappeared."
 396         descr="no stderr: $1"
 397         shift
 398         say >&3 "expecting no stderr from previous command"
 399         if [ ! -s "$stderr" ]; then
 400                 rm "$stderr"
 401                 test_ok_ "$descr"
 402         else
 403                 if [ "$verbose" = t ]; then
 404                         output=`echo; echo Stderr is:; cat "$stderr"`
 405                 else
 406                         output=
 407                 fi
 408                 # rm first in case test_failure exits.
 409                 rm "$stderr"
 410                 test_failure_ "$descr" "$@" "$output"
 411         fi
 412 }
 413
 414 # This is not among top-level (test_expect_success | test_expect_failure)
 415 # but is a prefix that can be used in the test script, like:
 416 #
 417 #       test_expect_success 'complain and die' '
 418 #           do something &&
 419 #           do something else &&
 420 #           test_must_fail git checkout ../outerspace
 421 #       '
 422 #
 423 # Writing this as "! git checkout ../outerspace" is wrong, because
 424 # the failure could be due to a segv.  We want a controlled failure.
 425
 426 test_must_fail () {
 427         "$@"
 428         test $? -gt 0 -a $? -le 129 -o $? -gt 192
 429 }
 430
 431 # test_cmp is a helper function to compare actual and expected output.
 432 # You can use it like:
 433 #
 434 #       test_expect_success 'foo works' '
 435 #               echo expected >expected &&
 436 #               foo >actual &&
 437 #               test_cmp expected actual
 438 #       '
 439 #
 440 # This could be written as either "cmp" or "diff -u", but:
 441 # - cmp's output is not nearly as easy to read as diff -u
 442 # - not all diff versions understand "-u"
 443
 444 test_cmp() {
 445         $GIT_TEST_CMP "$@"
 446 }
 447
 448 # Most tests can use the created repository, but some may need to create more.
 449 # Usage: test_create_repo <directory>
 450 test_create_repo () {
 451         test "$#" = 1 ||
 452         error "bug in the test script: not 1 parameter to test-create-repo"
 453         owd=`pwd`
 454         repo="$1"
 455         mkdir -p "$repo"
 456         cd "$repo" || error "Cannot setup test environment"
 457         "$GIT_EXEC_PATH/git" init "--template=$owd/../templates/blt/" >&3 2>&4 ||
 458         error "cannot run git init -- have you built things yet?"
 459         mv .git/hooks .git/hooks-disabled
 460         cd "$owd"
 461 }
 462
 463 test_done () {
 464         trap - EXIT
 465         test_results_dir="$TEST_DIRECTORY/test-results"
 466         mkdir -p "$test_results_dir"
 467         test_results_path="$test_results_dir/${0%.sh}-$$"
 468
 469         echo "total $test_count" >> $test_results_path
 470         echo "success $test_success" >> $test_results_path
 471         echo "fixed $test_fixed" >> $test_results_path
 472         echo "broken $test_broken" >> $test_results_path
 473         echo "failed $test_failure" >> $test_results_path
 474         echo "" >> $test_results_path
 475
 476         if test "$test_fixed" != 0
 477         then
 478                 say_color pass "fixed $test_fixed known breakage(s)"
 479         fi
 480         if test "$test_broken" != 0
 481         then
 482                 say_color error "still have $test_broken known breakage(s)"
 483                 msg="remaining $(($test_count-$test_broken)) test(s)"
 484         else
 485                 msg="$test_count test(s)"
 486         fi
 487         case "$test_failure" in
 488         0)
 489                 # We could:
 490                 # cd .. && rm -fr 'trash directory'
 491                 # but that means we forbid any tests that use their own
 492                 # subdirectory from calling test_done without coming back
 493                 # to where they started from.
 494                 # The Makefile provided will clean this test area so
 495                 # we will leave things as they are.
 496
 497                 say_color pass "passed all $msg"
 498
 499                 test -d "$remove_trash" &&
 500                 cd "$(dirname "$remove_trash")" &&
 501                 rm -rf "$(basename "$remove_trash")"
 502
 503                 exit 0 ;;
 504
 505         *)
 506                 say_color error "failed $test_failure among $msg"
 507                 exit 1 ;;
 508
 509         esac
 510 }
 511
 512 # Test the binaries we have just built.  The tests are kept in
 513 # t/ subdirectory and are run in 'trash directory' subdirectory.
 514 TEST_DIRECTORY=$(pwd)
 515 if test -z "$valgrind"
 516 then
 517         PATH=$TEST_DIRECTORY/..:$PATH
 518         GIT_EXEC_PATH=$TEST_DIRECTORY/..
 519 else
 520         make_symlink () {
 521                 test -h "$2" &&
 522                 test "$1" = "$(readlink "$2")" || {
 523                         # be super paranoid
 524                         if mkdir "$2".lock
 525                         then
 526                                 rm -f "$2" &&
 527                                 ln -s "$1" "$2" &&
 528                                 rm -r "$2".lock
 529                         else
 530                                 while test -d "$2".lock
 531                                 do
 532                                         say "Waiting for lock on $2."
 533                                         sleep 1
 534                                 done
 535                         fi
 536                 }
 537         }
 538
 539         make_valgrind_symlink () {
 540                 # handle only executables
 541                 test -x "$1" || return
 542
 543                 base=$(basename "$1")
 544                 symlink_target=$TEST_DIRECTORY/../$base
 545                 # do not override scripts
 546                 if test -x "$symlink_target" &&
 547                     test ! -d "$symlink_target" &&
 548                     test "#!" != "$(head -c 2 < "$symlink_target")"
 549                 then
 550                         symlink_target=../valgrind.sh
 551                 fi
 552                 case "$base" in
 553                 *.sh|*.perl)
 554                         symlink_target=../unprocessed-script
 555                 esac
 556                 # create the link, or replace it if it is out of date
 557                 make_symlink "$symlink_target" "$GIT_VALGRIND/bin/$base" || exit
 558         }
 559
 560         # override all git executables in TEST_DIRECTORY/..
 561         GIT_VALGRIND=$TEST_DIRECTORY/valgrind
 562         mkdir -p "$GIT_VALGRIND"/bin
 563         for file in $TEST_DIRECTORY/../git* $TEST_DIRECTORY/../test-*
 564         do
 565                 make_valgrind_symlink $file
 566         done
 567         OLDIFS=$IFS
 568         IFS=:
 569         for path in $PATH
 570         do
 571                 ls "$path"/git-* 2> /dev/null |
 572                 while read file
 573                 do
 574                         make_valgrind_symlink "$file"
 575                 done
 576         done
 577         IFS=$OLDIFS
 578         PATH=$GIT_VALGRIND/bin:$PATH
 579         GIT_EXEC_PATH=$GIT_VALGRIND/bin
 580         export GIT_VALGRIND
 581 fi
 582 GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 583 unset GIT_CONFIG
 584 GIT_CONFIG_NOSYSTEM=1
 585 GIT_CONFIG_NOGLOBAL=1
 586 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 587
 588 GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 589 export GITPERLLIB
 590 test -d ../templates/blt || {
 591         error "You haven't built things yet, have you?"
 592 }
 593
 594 if ! test -x ../test-chmtime; then
 595         echo >&2 'You need to build test-chmtime:'
 596         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 597         exit 1
 598 fi
 599
 600 . ../GIT-BUILD-OPTIONS
 601
 602 # Test repository
 603 test="trash directory.$(basename "$0" .sh)"
 604 test ! -z "$debug" || remove_trash="$TEST_DIRECTORY/$test"
 605 rm -fr "$test" || {
 606         trap - EXIT
 607         echo >&5 "FATAL: Cannot prepare test area"
 608         exit 1
 609 }
 610
 611 test_create_repo "$test"
 612 # Use -P to resolve symlinks in our working directory so that the cwd
 613 # in subprocesses like git equals our $PWD (for pathname comparisons).
 614 cd -P "$test" || exit 1
 615
 616 this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
 617 for skp in $GIT_SKIP_TESTS
 618 do
 619         to_skip=
 620         for skp in $GIT_SKIP_TESTS
 621         do
 622                 case "$this_test" in
 623                 $skp)
 624                         to_skip=t
 625                 esac
 626         done
 627         case "$to_skip" in
 628         t)
 629                 say_color skip >&3 "skipping test $this_test altogether"
 630                 say_color skip "skip all tests in $this_test"
 631                 test_done
 632         esac
 633 done