test/make/autoconf/test.m4

#
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###############################################################################
#
# Unit tests for the configure script
#
###############################################################################

AC_DEFUN([TEST_STRING_OPS],
[
  FEW="ninja banan pepparkaka"
  MANY="banan antarktis pepparkaka ninjamask bana"

  EXPECTED_NON_MATCHING="antarktis ninjamask bana"
  UTIL_GET_NON_MATCHING_VALUES(ACTUAL, $MANY, $FEW)
  UTIL_ASSERT_STRING_EQUALS($ACTUAL, $EXPECTED_NON_MATCHING, \
      [UTIL_GET_NON_MATCHING_VALUES failed])

  EXPECTED_MATCHING="banan pepparkaka"
  UTIL_GET_MATCHING_VALUES(ACTUAL, $FEW, $MANY)
  UTIL_ASSERT_STRING_EQUALS($ACTUAL, $EXPECTED_MATCHING, \
      [UTIL_GET_MATCHING_VALUES failed])
])

AC_DEFUN([TEST_ARG_ENABLE],
[
  # fake '--enable-default-false=yes' on the command line
  enable_default_false=yes
  UTIL_ARG_ENABLE(NAME: default-false, DEFAULT: false, RESULT: TEST_RESULT)
  UTIL_ASSERT_TRUE($TEST_RESULT)

  # assume '--enable-default-true-but-unavailable=yes' not set
  UTIL_ARG_ENABLE(NAME: default-true-but-unavailable, DEFAULT: auto, RESULT: TEST_RESULT, AVAILABLE: false)
  UTIL_ASSERT_NOT_TRUE($TEST_RESULT)

  enable_test_given_yes=yes
  given=false
  enabled=false
  disabled=false
  UTIL_ARG_ENABLE(NAME: test-given-yes, DEFAULT: false,
      IF_GIVEN: [ given=true ], IF_ENABLED: [ enabled=true ],
      IF_DISABLED: [ disabled=true ])
  UTIL_ASSERT_TRUE($given)
  UTIL_ASSERT_TRUE($enabled)
  UTIL_ASSERT_NOT_TRUE($disabled)

  enable_test_given_default=no
  given=false
  enabled=false
  disabled=false
  UTIL_ARG_ENABLE(NAME: test-given-default, DEFAULT: true,
      IF_GIVEN: [ given=true ], IF_ENABLED: [ enabled=true ],
      IF_DISABLED: [ disabled=true ])
  UTIL_ASSERT_TRUE($given)
  UTIL_ASSERT_NOT_TRUE($enabled)
  UTIL_ASSERT_TRUE($disabled)

  # assume '--enable-test-given-no' not set
  given=false
  enabled=false
  disabled=false
  UTIL_ARG_ENABLE(NAME: test-given-no, DEFAULT: true,
      IF_GIVEN: [ given=true ], IF_ENABLED: [ enabled=true ],
      IF_DISABLED: [ disabled=true ])
  UTIL_ASSERT_NOT_TRUE($given)
  UTIL_ASSERT_TRUE($enabled)
  UTIL_ASSERT_NOT_TRUE($disabled)
])

# Use the CUSTOM_EARLY_HOOK to inject our test after basic init is done.
AC_DEFUN_ONCE([CUSTOM_EARLY_HOOK],
[
  $PRINTF "\nStarting configure tests\n"
  $PRINTF "==============================\n"

  TEST_STRING_OPS
  TEST_ARG_ENABLE

  # If no assertions failed, report success
  $PRINTF "==============================\n"
  $PRINTF "Configure tests finished successfully\n\n"
  exit 0
])