external/gpl2/lvm2/dist/test/test-lib.sh

   1 #!/bin/sh
   2 # Derived from git's t/test-lib.sh, which is Copyright (c) 2005 Junio C Hamano
   3 #
   4 # This copyrighted material is made available to anyone wishing to use,
   5 # modify, copy, or redistribute it subject to the terms and conditions
   6 # of the GNU General Public License v.2.
   7 #
   8 # You should have received a copy of the GNU General Public License
   9 # along with this program; if not, write to the Free Software Foundation,
  10 # Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  11
  12 # For repeatability, reset the environment to known value.
  13 LANG=C
  14 LC_ALL=C
  15 TZ=UTC
  16 export LANG LC_ALL TZ
  17
  18 . ./init.sh || { echo >&2 you must run make first; exit 1; }
  19
  20 # Protect ourselves from common misconfiguration to export
  21 # CDPATH into the environment
  22 unset CDPATH
  23
  24 # Each test should start with something like this, after copyright notices:
  25 #
  26 # test_description='Description of this test...
  27 # This test checks if command xyzzy does the right thing...
  28 # '
  29 # . ./test-lib.sh
  30
  31 error () {
  32         echo "* error: $*"
  33         exit 1
  34 }
  35
  36 say () {
  37         echo "* $*"
  38 }
  39
  40 this_test_() { expr "./$0" : '.*/t-\([^/]*\)\.sh$'; }
  41
  42 test "${test_description}" != "" ||
  43 error "Test script did not set test_description."
  44
  45 verboselevel=0
  46 while test "$#" -ne 0
  47 do
  48         case "$1" in
  49         -d|--d|--de|--deb|--debu|--debug)
  50                 debug=t ;;
  51         -i|--i|--im|--imm|--imme|--immed|--immedi|--immedia|--immediat|--immediate)
  52                 immediate=t ;;
  53         -h|--h|--he|--hel|--help)
  54                 echo "$test_description"
  55                 exit 0 ;;
  56         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
  57                 verbose=t ;;
  58         -vv|-vvv|-vvvv)
  59                 verboselevel=${#1}
  60                 verboselevel=$(($verboselevel - 1))
  61                 verbose=t ;;
  62         *)
  63                 echo "$0: unsupported option $1"
  64                 exit 0 ;;
  65         esac
  66         shift
  67 done
  68
  69 exec 5>&1
  70 if test "$verbose" = "t"
  71 then
  72         exec 4>&2 3>&1
  73 else
  74         exec 4>/dev/null 3>/dev/null
  75 fi
  76
  77 test_failure=0
  78 test_count=0
  79
  80 trap 'echo >&5 "FATAL: Unexpected exit with code $?"; exit 1' exit
  81
  82 # You are not expected to call test_ok_ and test_failure_ directly, use
  83 # the text_expect_* functions instead.
  84
  85 test_ok_ () {
  86         test_count=$(expr "$test_count" + 1)
  87         say "  ok $test_count: $@"
  88 }
  89
  90 test_failure_ () {
  91         test_count=$(expr "$test_count" + 1)
  92         test_failure=$(expr "$test_failure" + 1);
  93         say "FAIL $test_count: $1"
  94         shift
  95         echo "$@" | sed -e 's/^/        /'
  96         test "$immediate" = "" || exit 1
  97 }
  98
  99 test_debug () {
 100         test "$debug" = "" || eval "$1"
 101 }
 102
 103 test_run_ () {
 104         eval >&3 2>&4 "$1"
 105         eval_ret="$?"
 106         return 0
 107 }
 108
 109 test_skip () {
 110         this_test=$(this_test_)
 111         this_test="$this_test.$(expr "$test_count" + 1)"
 112         to_skip=
 113         for skp in $SKIP_TESTS
 114         do
 115                 case "$this_test" in
 116                 $skp)
 117                         to_skip=t
 118                 esac
 119         done
 120         case "$to_skip" in
 121         t)
 122                 say >&3 "skipping test: $@"
 123                 test_count=$(expr "$test_count" + 1)
 124                 say "skip $test_count: $1"
 125                 : true
 126                 ;;
 127         *)
 128                 false
 129                 ;;
 130         esac
 131 }
 132
 133 test_expect_failure () {
 134         test "$#" = 2 ||
 135         error "bug in the test script: not 2 parameters to test-expect-failure"
 136         if ! test_skip "$@"
 137         then
 138                 say >&3 "expecting failure: $2"
 139                 test_run_ "$2"
 140                 if [ "$?" = 0 -a "$eval_ret" != 0 -a "$eval_ret" -lt 129 ]
 141                 then
 142                         test_ok_ "$1"
 143                 else
 144                         test_failure_ "$@"
 145                 fi
 146         fi
 147         echo >&3 ""
 148 }
 149
 150 test_expect_success () {
 151         test "$#" = 2 ||
 152         error "bug in the test script: not 2 parameters to test-expect-success"
 153         if ! test_skip "$@"
 154         then
 155                 say >&3 "expecting success: $2"
 156                 test_run_ "$2"
 157                 if [ "$?" = 0 -a "$eval_ret" = 0 ]
 158                 then
 159                         test_ok_ "$1"
 160                 else
 161                         test_failure_ "$@"
 162                 fi
 163         fi
 164         echo >&3 ""
 165 }
 166
 167 test_expect_code () {
 168         test "$#" = 3 ||
 169         error "bug in the test script: not 3 parameters to test-expect-code"
 170         if ! test_skip "$@"
 171         then
 172                 say >&3 "expecting exit code $1: $3"
 173                 test_run_ "$3"
 174                 if [ "$?" = 0 -a "$eval_ret" = "$1" ]
 175                 then
 176                         test_ok_ "$2"
 177                 else
 178                         test_failure_ "$@"
 179                 fi
 180         fi
 181         echo >&3 ""
 182 }
 183
 184 test_done () {
 185         case "$test_failure" in
 186         0)
 187                 # We could:
 188                 # cd .. && rm -fr trash
 189                 # but that means we forbid any tests that use their own
 190                 # subdirectory from calling test_done without coming back
 191                 # to where they started from.
 192                 # The Makefile provided will clean this test area so
 193                 # we will leave things as they are.
 194
 195                 say "passed all $test_count test(s)"
 196                 exit 0 ;;
 197
 198         *)
 199                 say "failed $test_failure among $test_count test(s)"
 200                 exit 1 ;;
 201
 202         esac
 203 }
 204
 205 this_test=$(this_test_)
 206
 207 skip_=0
 208 # If $privileges_required_ is nonempty, non-root skips this test.
 209 if test "$privileges_required_" != ''; then
 210     uid=`id -u` || error 'failed to run "id -u"'
 211     if test "$uid" != 0; then
 212         SKIP_TESTS="$SKIP_TESTS $this_test"
 213         say "you have insufficient privileges for test $this_test"
 214         skip_=1
 215     fi
 216 fi
 217
 218 pwd_=`pwd`
 219
 220 test_dir_=${LVM_TEST_DIR-.}
 221 test "$test_dir_" = . && test_dir_=$pwd_
 222
 223 # This is a stub function that is run upon trap (upon regular exit and
 224 # interrupt).  Override it with a per-test function, e.g., to unmount
 225 # a partition, or to undo any other global state changes.
 226 cleanup_() { :; }
 227
 228 for skp in $SKIP_TESTS
 229 do
 230         to_skip=
 231         for skp in $SKIP_TESTS
 232         do
 233                 case "$this_test" in
 234                 $skp)
 235                         to_skip=t
 236                 esac
 237         done
 238         case "$to_skip" in
 239         t)
 240                 say >&3 "skipping test $this_test altogether"
 241                 say "skip all tests in $this_test"
 242                 trap - exit
 243                 test_done
 244         esac
 245 done
 246
 247 test_dir_rand_=$($abs_srcdir/mkdtemp $test_dir_ lvm-$this_test.XXXXXXXXXX) \
 248     || error "failed to create temporary directory in $test_dir_"
 249
 250 testlib_cleanup_() {
 251     d="$test_dir_rand_";
 252     cd "$test_dir_" && chmod -R u+rwx "$d" && rm -rf "$d"
 253 }
 254
 255 # Run each test from within a temporary sub-directory named after the
 256 # test itself, and arrange to remove it upon exception or normal exit.
 257 trap 'st=$?; cleanup_; testlib_cleanup_; exit $st' 0
 258 trap '(exit $?); exit $?' 1 2 13 15
 259
 260 cd $test_dir_rand_ || error "failed to cd to $test_dir_rand_"
 261
 262 if test $skip_ = 0; then
 263   . $abs_srcdir/lvm-utils.sh || exit 1
 264 fi
 265
 266 if ( diff --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
 267   compare='diff -u'
 268 elif ( cmp --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
 269   compare='cmp -s'
 270 else
 271   compare=cmp
 272 fi