import unittest import __future__ GOOD_SERIALS = ("alpha", "beta", "candidate", "final") features = __future__.all_feature_names class FutureTest(unittest.TestCase): def test_names(self): # Verify that all_feature_names appears correct. given_feature_names = features[:] for name in dir(__future__): obj = getattr(__future__, name, None) if obj is not None and isinstance(obj, __future__._Feature): self.assertTrue( name in given_feature_names, "%r should have been in all_feature_names" % name ) given_feature_names.remove(name) self.assertEqual(len(given_feature_names), 0, "all_feature_names has too much: %r" % given_feature_names) def test_attributes(self): for feature in features: value = getattr(__future__, feature) optional = value.getOptionalRelease() mandatory = value.getMandatoryRelease() a = self.assertTrue e = self.assertEqual def check(t, name): a(isinstance(t, tuple), "%s isn't tuple" % name) e(len(t), 5, "%s isn't 5-tuple" % name) (major, minor, micro, level, serial) = t a(isinstance(major, int), "%s major isn't int" % name) a(isinstance(minor, int), "%s minor isn't int" % name) a(isinstance(micro, int), "%s micro isn't int" % name) a(isinstance(level, str), "%s level isn't string" % name) a(level in GOOD_SERIALS, "%s level string has unknown value" % name) a(isinstance(serial, int), "%s serial isn't int" % name) check(optional, "optional") if mandatory is not None: check(mandatory, "mandatory") a(optional < mandatory, "optional not less than mandatory, and mandatory not None") a(hasattr(value, "compiler_flag"), "feature is missing a .compiler_flag attr") # Make sure the compile accepts the flag. compile("", "<test>", "exec", value.compiler_flag) a(isinstance(getattr(value, "compiler_flag"), int), ".compiler_flag isn't int") if __name__ == "__main__": unittest.main() SIMPAN PERUBAHAN