t/test-lib.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 # Keep the original TERM for say_color
   7 ORIGINAL_TERM=$TERM
   8
   9 # For repeatability, reset the environment to known value.
  10 LANG=C
  11 LC_ALL=C
  12 PAGER=cat
  13 TZ=UTC
  14 TERM=dumb
  15 export LANG LC_ALL PAGER TERM TZ
  16 EDITOR=:
  17 VISUAL=:
  18 unset GIT_EDITOR
  19 unset AUTHOR_DATE
  20 unset AUTHOR_EMAIL
  21 unset AUTHOR_NAME
  22 unset COMMIT_AUTHOR_EMAIL
  23 unset COMMIT_AUTHOR_NAME
  24 unset EMAIL
  25 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
  26 unset GIT_AUTHOR_DATE
  27 GIT_AUTHOR_EMAIL=author@example.com
  28 GIT_AUTHOR_NAME='A U Thor'
  29 unset GIT_COMMITTER_DATE
  30 GIT_COMMITTER_EMAIL=committer@example.com
  31 GIT_COMMITTER_NAME='C O Mitter'
  32 unset GIT_DIFF_OPTS
  33 unset GIT_DIR
  34 unset GIT_WORK_TREE
  35 unset GIT_EXTERNAL_DIFF
  36 unset GIT_INDEX_FILE
  37 unset GIT_OBJECT_DIRECTORY
  38 unset SHA1_FILE_DIRECTORIES
  39 unset SHA1_FILE_DIRECTORY
  40 GIT_MERGE_VERBOSITY=5
  41 export GIT_MERGE_VERBOSITY
  42 export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
  43 export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
  44 export EDITOR VISUAL
  45 GIT_TEST_CMP=${GIT_TEST_CMP:-diff -u}
  46
  47 # Protect ourselves from common misconfiguration to export
  48 # CDPATH into the environment
  49 unset CDPATH
  50
  51 case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
  52         1|2|true)
  53                 echo "* warning: Some tests will not work if GIT_TRACE" \
  54                         "is set as to trace on STDERR ! *"
  55                 echo "* warning: Please set GIT_TRACE to something" \
  56                         "other than 1, 2 or true ! *"
  57                 ;;
  58 esac
  59
  60 # Each test should start with something like this, after copyright notices:
  61 #
  62 # test_description='Description of this test...
  63 # This test checks if command xyzzy does the right thing...
  64 # '
  65 # . ./test-lib.sh
  66 [ "x$ORIGINAL_TERM" != "xdumb" ] && (
  67                 TERM=$ORIGINAL_TERM &&
  68                 export TERM &&
  69                 [ -t 1 ] &&
  70                 tput bold >/dev/null 2>&1 &&
  71                 tput setaf 1 >/dev/null 2>&1 &&
  72                 tput sgr0 >/dev/null 2>&1
  73         ) &&
  74         color=t
  75
  76 while test "$#" -ne 0
  77 do
  78         case "$1" in
  79         -d|--d|--de|--deb|--debu|--debug)
  80                 debug=t; shift ;;
  81         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
  82                 immediate=t; shift ;;
  83         -h|--h|--he|--hel|--help)
  84                 help=t; shift ;;
  85         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
  86                 verbose=t; shift ;;
  87         -q|--q|--qu|--qui|--quie|--quiet)
  88                 quiet=t; shift ;;
  89         --no-color)
  90                 color=; shift ;;
  91         --no-python)
  92                 # noop now...
  93                 shift ;;
  94         *)
  95                 break ;;
  96         esac
  97 done
  98
  99 if test -n "$color"; then
 100         say_color () {
 101                 (
 102                 TERM=$ORIGINAL_TERM
 103                 export TERM
 104                 case "$1" in
 105                         error) tput bold; tput setaf 1;; # bold red
 106                         skip)  tput bold; tput setaf 2;; # bold green
 107                         pass)  tput setaf 2;;            # green
 108                         info)  tput setaf 3;;            # brown
 109                         *) test -n "$quiet" && return;;
 110                 esac
 111                 shift
 112                 echo "* $*"
 113                 tput sgr0
 114                 )
 115         }
 116 else
 117         say_color() {
 118                 test -z "$1" && test -n "$quiet" && return
 119                 shift
 120                 echo "* $*"
 121         }
 122 fi
 123
 124 error () {
 125         say_color error "error: $*"
 126         trap - exit
 127         exit 1
 128 }
 129
 130 say () {
 131         say_color info "$*"
 132 }
 133
 134 test "${test_description}" != "" ||
 135 error "Test script did not set test_description."
 136
 137 if test "$help" = "t"
 138 then
 139         echo "$test_description"
 140         exit 0
 141 fi
 142
 143 exec 5>&1
 144 if test "$verbose" = "t"
 145 then
 146         exec 4>&2 3>&1
 147 else
 148         exec 4>/dev/null 3>/dev/null
 149 fi
 150
 151 test_failure=0
 152 test_count=0
 153 test_fixed=0
 154 test_broken=0
 155
 156 die () {
 157         echo >&5 "FATAL: Unexpected exit with code $?"
 158         exit 1
 159 }
 160
 161 trap 'die' exit
 162
 163 # The semantics of the editor variables are that of invoking
 164 # sh -c "$EDITOR \"$@\"" files ...
 165 #
 166 # If our trash directory contains shell metacharacters, they will be
 167 # interpreted if we just set $EDITOR directly, so do a little dance with
 168 # environment variables to work around this.
 169 #
 170 # In particular, quoting isn't enough, as the path may contain the same quote
 171 # that we're using.
 172 test_set_editor () {
 173         FAKE_EDITOR="$1"
 174         export FAKE_EDITOR
 175         VISUAL='"$FAKE_EDITOR"'
 176         export VISUAL
 177 }
 178
 179 test_tick () {
 180         if test -z "${test_tick+set}"
 181         then
 182                 test_tick=1112911993
 183         else
 184                 test_tick=$(($test_tick + 60))
 185         fi
 186         GIT_COMMITTER_DATE="$test_tick -0700"
 187         GIT_AUTHOR_DATE="$test_tick -0700"
 188         export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
 189 }
 190
 191 # You are not expected to call test_ok_ and test_failure_ directly, use
 192 # the text_expect_* functions instead.
 193
 194 test_ok_ () {
 195         test_count=$(expr "$test_count" + 1)
 196         say_color "" "  ok $test_count: $@"
 197 }
 198
 199 test_failure_ () {
 200         test_count=$(expr "$test_count" + 1)
 201         test_failure=$(expr "$test_failure" + 1);
 202         say_color error "FAIL $test_count: $1"
 203         shift
 204         echo "$@" | sed -e 's/^/        /'
 205         test "$immediate" = "" || { trap - exit; exit 1; }
 206 }
 207
 208 test_known_broken_ok_ () {
 209         test_count=$(expr "$test_count" + 1)
 210         test_fixed=$(($test_fixed+1))
 211         say_color "" "  FIXED $test_count: $@"
 212 }
 213
 214 test_known_broken_failure_ () {
 215         test_count=$(expr "$test_count" + 1)
 216         test_broken=$(($test_broken+1))
 217         say_color skip "  still broken $test_count: $@"
 218 }
 219
 220 test_debug () {
 221         test "$debug" = "" || eval "$1"
 222 }
 223
 224 test_run_ () {
 225         eval >&3 2>&4 "$1"
 226         eval_ret="$?"
 227         return 0
 228 }
 229
 230 test_skip () {
 231         this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
 232         this_test="$this_test.$(expr "$test_count" + 1)"
 233         to_skip=
 234         for skp in $GIT_SKIP_TESTS
 235         do
 236                 case "$this_test" in
 237                 $skp)
 238                         to_skip=t
 239                 esac
 240         done
 241         case "$to_skip" in
 242         t)
 243                 say_color skip >&3 "skipping test: $@"
 244                 test_count=$(expr "$test_count" + 1)
 245                 say_color skip "skip $test_count: $1"
 246                 : true
 247                 ;;
 248         *)
 249                 false
 250                 ;;
 251         esac
 252 }
 253
 254 test_expect_failure () {
 255         test "$#" = 2 ||
 256         error "bug in the test script: not 2 parameters to test-expect-failure"
 257         if ! test_skip "$@"
 258         then
 259                 say >&3 "checking known breakage: $2"
 260                 test_run_ "$2"
 261                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 262                 then
 263                         test_known_broken_ok_ "$1"
 264                 else
 265                     test_known_broken_failure_ "$1"
 266                 fi
 267         fi
 268         echo >&3 ""
 269 }
 270
 271 test_expect_success () {
 272         test "$#" = 2 ||
 273         error "bug in the test script: not 2 parameters to test-expect-success"
 274         if ! test_skip "$@"
 275         then
 276                 say >&3 "expecting success: $2"
 277                 test_run_ "$2"
 278                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 279                 then
 280                         test_ok_ "$1"
 281                 else
 282                         test_failure_ "$@"
 283                 fi
 284         fi
 285         echo >&3 ""
 286 }
 287
 288 test_expect_code () {
 289         test "$#" = 3 ||
 290         error "bug in the test script: not 3 parameters to test-expect-code"
 291         if ! test_skip "$@"
 292         then
 293                 say >&3 "expecting exit code $1: $3"
 294                 test_run_ "$3"
 295                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 296                 then
 297                         test_ok_ "$2"
 298                 else
 299                         test_failure_ "$@"
 300                 fi
 301         fi
 302         echo >&3 ""
 303 }
 304
 305 # This is not among top-level (test_expect_success | test_expect_failure)
 306 # but is a prefix that can be used in the test script, like:
 307 #
 308 #       test_expect_success 'complain and die' '
 309 #           do something &&
 310 #           do something else &&
 311 #           test_must_fail git checkout ../outerspace
 312 #       '
 313 #
 314 # Writing this as "! git checkout ../outerspace" is wrong, because
 315 # the failure could be due to a segv.  We want a controlled failure.
 316
 317 test_must_fail () {
 318         "$@"
 319         test $? -gt 0 -a $? -le 129
 320 }
 321
 322 # test_cmp is a helper function to compare actual and expected output.
 323 # You can use it like:
 324 #
 325 #       test_expect_success 'foo works' '
 326 #               echo expected >expected &&
 327 #               foo >actual &&
 328 #               test_cmp expected actual
 329 #       '
 330 #
 331 # This could be written as either "cmp" or "diff -u", but:
 332 # - cmp's output is not nearly as easy to read as diff -u
 333 # - not all diff versions understand "-u"
 334
 335 test_cmp() {
 336         $GIT_TEST_CMP "$@"
 337 }
 338
 339 # Most tests can use the created repository, but some may need to create more.
 340 # Usage: test_create_repo <directory>
 341 test_create_repo () {
 342         test "$#" = 1 ||
 343         error "bug in the test script: not 1 parameter to test-create-repo"
 344         owd=`pwd`
 345         repo="$1"
 346         mkdir "$repo"
 347         cd "$repo" || error "Cannot setup test environment"
 348         "$GIT_EXEC_PATH/git" init "--template=$GIT_EXEC_PATH/templates/blt/" >/dev/null 2>&1 ||
 349         error "cannot run git init -- have you built things yet?"
 350         mv .git/hooks .git/hooks-disabled
 351         cd "$owd"
 352 }
 353
 354 test_done () {
 355         trap - exit
 356
 357         if test "$test_fixed" != 0
 358         then
 359                 say_color pass "fixed $test_fixed known breakage(s)"
 360         fi
 361         if test "$test_broken" != 0
 362         then
 363                 say_color error "still have $test_broken known breakage(s)"
 364                 msg="remaining $(($test_count-$test_broken)) test(s)"
 365         else
 366                 msg="$test_count test(s)"
 367         fi
 368         case "$test_failure" in
 369         0)
 370                 # We could:
 371                 # cd .. && rm -fr 'trash directory'
 372                 # but that means we forbid any tests that use their own
 373                 # subdirectory from calling test_done without coming back
 374                 # to where they started from.
 375                 # The Makefile provided will clean this test area so
 376                 # we will leave things as they are.
 377
 378                 say_color pass "passed all $msg"
 379                 exit 0 ;;
 380
 381         *)
 382                 say_color error "failed $test_failure among $msg"
 383                 exit 1 ;;
 384
 385         esac
 386 }
 387
 388 # Test the binaries we have just built.  The tests are kept in
 389 # t/ subdirectory and are run in 'trash directory' subdirectory.
 390 PATH=$(pwd)/..:$PATH
 391 GIT_EXEC_PATH=$(pwd)/..
 392 GIT_TEMPLATE_DIR=$(pwd)/../templates/blt
 393 unset GIT_CONFIG
 394 unset GIT_CONFIG_LOCAL
 395 GIT_CONFIG_NOSYSTEM=1
 396 GIT_CONFIG_NOGLOBAL=1
 397 export PATH GIT_EXEC_PATH GIT_TEMPLATE_DIR GIT_CONFIG_NOSYSTEM GIT_CONFIG_NOGLOBAL
 398
 399 GITPERLLIB=$(pwd)/../perl/blib/lib:$(pwd)/../perl/blib/arch/auto/Git
 400 export GITPERLLIB
 401 test -d ../templates/blt || {
 402         error "You haven't built things yet, have you?"
 403 }
 404
 405 if ! test -x ../test-chmtime; then
 406         echo >&2 'You need to build test-chmtime:'
 407         echo >&2 'Run "make test-chmtime" in the source (toplevel) directory'
 408         exit 1
 409 fi
 410
 411 . ../GIT-BUILD-OPTIONS
 412
 413 # Test repository
 414 test="trash directory"
 415 rm -fr "$test" || {
 416         trap - exit
 417         echo >&5 "FATAL: Cannot prepare test area"
 418         exit 1
 419 }
 420
 421 test_create_repo "$test"
 422 # Use -P to resolve symlinks in our working directory so that the cwd
 423 # in subprocesses like git equals our $PWD (for pathname comparisons).
 424 cd -P "$test" || exit 1
 425
 426 this_test=$(expr "./$0" : '.*/\(t[0-9]*\)-[^/]*$')
 427 for skp in $GIT_SKIP_TESTS
 428 do
 429         to_skip=
 430         for skp in $GIT_SKIP_TESTS
 431         do
 432                 case "$this_test" in
 433                 $skp)
 434                         to_skip=t
 435                 esac
 436         done
 437         case "$to_skip" in
 438         t)
 439                 say_color skip >&3 "skipping test $this_test altogether"
 440                 say_color skip "skip all tests in $this_test"
 441                 test_done
 442         esac
 443 done