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generator_test.py
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# # Protocol Buffers - Google's data interchange format # Copyright 2008 Google Inc. All rights reserved. # https://developers.google.com/protocol-buffers/ # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # TODO(robinson): Flesh this out considerably. We focused on reflection_test.py # first, since it's testing the subtler code, and since it provides decent # indirect testing of the protocol compiler output. """Unittest that directly tests the output of the pure-Python protocol compiler. See //google/protobuf/internal/reflection_test.py for a test which further ensures that we can use Python protocol message objects as we expect. """ __author__ = 'robinson@google.com (Will Robinson)' try: import unittest2 as unittest #PY26 except ImportError: import unittest from google.protobuf.internal import test_bad_identifiers_pb2 from google.protobuf import unittest_custom_options_pb2 from google.protobuf import unittest_import_pb2 from google.protobuf import unittest_import_public_pb2 from google.protobuf import unittest_mset_pb2 from google.protobuf import unittest_mset_wire_format_pb2 from google.protobuf import unittest_no_generic_services_pb2 from google.protobuf import unittest_pb2 from google.protobuf import service from google.protobuf import symbol_database MAX_EXTENSION = 536870912 class GeneratorTest(unittest.TestCase): def testNestedMessageDescriptor(self): field_name = 'optional_nested_message' proto_type = unittest_pb2.TestAllTypes self.assertEqual( proto_type.NestedMessage.DESCRIPTOR, proto_type.DESCRIPTOR.fields_by_name[field_name].message_type) def testEnums(self): # We test only module-level enums here. # TODO(robinson): Examine descriptors directly to check # enum descriptor output. self.assertEqual(4, unittest_pb2.FOREIGN_FOO) self.assertEqual(5, unittest_pb2.FOREIGN_BAR) self.assertEqual(6, unittest_pb2.FOREIGN_BAZ) proto = unittest_pb2.TestAllTypes() self.assertEqual(1, proto.FOO) self.assertEqual(1, unittest_pb2.TestAllTypes.FOO) self.assertEqual(2, proto.BAR) self.assertEqual(2, unittest_pb2.TestAllTypes.BAR) self.assertEqual(3, proto.BAZ) self.assertEqual(3, unittest_pb2.TestAllTypes.BAZ) def testExtremeDefaultValues(self): message = unittest_pb2.TestExtremeDefaultValues() # Python pre-2.6 does not have isinf() or isnan() functions, so we have # to provide our own. def isnan(val): # NaN is never equal to itself. return val != val def isinf(val): # Infinity times zero equals NaN. return not isnan(val) and isnan(val * 0) self.assertTrue(isinf(message.inf_double)) self.assertTrue(message.inf_double > 0) self.assertTrue(isinf(message.neg_inf_double)) self.assertTrue(message.neg_inf_double < 0) self.assertTrue(isnan(message.nan_double)) self.assertTrue(isinf(message.inf_float)) self.assertTrue(message.inf_float > 0) self.assertTrue(isinf(message.neg_inf_float)) self.assertTrue(message.neg_inf_float < 0) self.assertTrue(isnan(message.nan_float)) self.assertEqual("? ? ?? ?? ??? ??/ ??-", message.cpp_trigraph) def testHasDefaultValues(self): desc = unittest_pb2.TestAllTypes.DESCRIPTOR expected_has_default_by_name = { 'optional_int32': False, 'repeated_int32': False, 'optional_nested_message': False, 'default_int32': True, } has_default_by_name = dict( [(f.name, f.has_default_value) for f in desc.fields if f.name in expected_has_default_by_name]) self.assertEqual(expected_has_default_by_name, has_default_by_name) def testContainingTypeBehaviorForExtensions(self): self.assertEqual(unittest_pb2.optional_int32_extension.containing_type, unittest_pb2.TestAllExtensions.DESCRIPTOR) self.assertEqual(unittest_pb2.TestRequired.single.containing_type, unittest_pb2.TestAllExtensions.DESCRIPTOR) def testExtensionScope(self): self.assertEqual(unittest_pb2.optional_int32_extension.extension_scope, None) self.assertEqual(unittest_pb2.TestRequired.single.extension_scope, unittest_pb2.TestRequired.DESCRIPTOR) def testIsExtension(self): self.assertTrue(unittest_pb2.optional_int32_extension.is_extension) self.assertTrue(unittest_pb2.TestRequired.single.is_extension) message_descriptor = unittest_pb2.TestRequired.DESCRIPTOR non_extension_descriptor = message_descriptor.fields_by_name['a'] self.assertTrue(not non_extension_descriptor.is_extension) def testOptions(self): proto = unittest_mset_wire_format_pb2.TestMessageSet() self.assertTrue(proto.DESCRIPTOR.GetOptions().message_set_wire_format) def testMessageWithCustomOptions(self): proto = unittest_custom_options_pb2.TestMessageWithCustomOptions() enum_options = proto.DESCRIPTOR.enum_types_by_name['AnEnum'].GetOptions() self.assertTrue(enum_options is not None) # TODO(gps): We really should test for the presence of the enum_opt1 # extension and for its value to be set to -789. def testNestedTypes(self): self.assertEqual( set(unittest_pb2.TestAllTypes.DESCRIPTOR.nested_types), set([ unittest_pb2.TestAllTypes.NestedMessage.DESCRIPTOR, unittest_pb2.TestAllTypes.OptionalGroup.DESCRIPTOR, unittest_pb2.TestAllTypes.RepeatedGroup.DESCRIPTOR, ])) self.assertEqual(unittest_pb2.TestEmptyMessage.DESCRIPTOR.nested_types, []) self.assertEqual( unittest_pb2.TestAllTypes.NestedMessage.DESCRIPTOR.nested_types, []) def testContainingType(self): self.assertTrue( unittest_pb2.TestEmptyMessage.DESCRIPTOR.containing_type is None) self.assertTrue( unittest_pb2.TestAllTypes.DESCRIPTOR.containing_type is None) self.assertEqual( unittest_pb2.TestAllTypes.NestedMessage.DESCRIPTOR.containing_type, unittest_pb2.TestAllTypes.DESCRIPTOR) self.assertEqual( unittest_pb2.TestAllTypes.NestedMessage.DESCRIPTOR.containing_type, unittest_pb2.TestAllTypes.DESCRIPTOR) self.assertEqual( unittest_pb2.TestAllTypes.RepeatedGroup.DESCRIPTOR.containing_type, unittest_pb2.TestAllTypes.DESCRIPTOR) def testContainingTypeInEnumDescriptor(self): self.assertTrue(unittest_pb2._FOREIGNENUM.containing_type is None) self.assertEqual(unittest_pb2._TESTALLTYPES_NESTEDENUM.containing_type, unittest_pb2.TestAllTypes.DESCRIPTOR) def testPackage(self): self.assertEqual( unittest_pb2.TestAllTypes.DESCRIPTOR.file.package, 'protobuf_unittest') desc = unittest_pb2.TestAllTypes.NestedMessage.DESCRIPTOR self.assertEqual(desc.file.package, 'protobuf_unittest') self.assertEqual( unittest_import_pb2.ImportMessage.DESCRIPTOR.file.package, 'protobuf_unittest_import') self.assertEqual( unittest_pb2._FOREIGNENUM.file.package, 'protobuf_unittest') self.assertEqual( unittest_pb2._TESTALLTYPES_NESTEDENUM.file.package, 'protobuf_unittest') self.assertEqual( unittest_import_pb2._IMPORTENUM.file.package, 'protobuf_unittest_import') def testExtensionRange(self): self.assertEqual( unittest_pb2.TestAllTypes.DESCRIPTOR.extension_ranges, []) self.assertEqual( unittest_pb2.TestAllExtensions.DESCRIPTOR.extension_ranges, [(1, MAX_EXTENSION)]) self.assertEqual( unittest_pb2.TestMultipleExtensionRanges.DESCRIPTOR.extension_ranges, [(42, 43), (4143, 4244), (65536, MAX_EXTENSION)]) def testFileDescriptor(self): self.assertEqual(unittest_pb2.DESCRIPTOR.name, 'google/protobuf/unittest.proto') self.assertEqual(unittest_pb2.DESCRIPTOR.package, 'protobuf_unittest') self.assertFalse(unittest_pb2.DESCRIPTOR.serialized_pb is None) self.assertEqual(unittest_pb2.DESCRIPTOR.dependencies, [unittest_import_pb2.DESCRIPTOR]) self.assertEqual(unittest_import_pb2.DESCRIPTOR.dependencies, [unittest_import_public_pb2.DESCRIPTOR]) self.assertEqual(unittest_import_pb2.DESCRIPTOR.public_dependencies, [unittest_import_public_pb2.DESCRIPTOR]) def testNoGenericServices(self): self.assertTrue(hasattr(unittest_no_generic_services_pb2, "TestMessage")) self.assertTrue(hasattr(unittest_no_generic_services_pb2, "FOO")) self.assertTrue(hasattr(unittest_no_generic_services_pb2, "test_extension")) # Make sure unittest_no_generic_services_pb2 has no services subclassing # Proto2 Service class. if hasattr(unittest_no_generic_services_pb2, "TestService"): self.assertFalse(issubclass(unittest_no_generic_services_pb2.TestService, service.Service)) def testMessageTypesByName(self): file_type = unittest_pb2.DESCRIPTOR self.assertEqual( unittest_pb2._TESTALLTYPES, file_type.message_types_by_name[unittest_pb2._TESTALLTYPES.name]) # Nested messages shouldn't be included in the message_types_by_name # dictionary (like in the C++ API). self.assertFalse( unittest_pb2._TESTALLTYPES_NESTEDMESSAGE.name in file_type.message_types_by_name) def testEnumTypesByName(self): file_type = unittest_pb2.DESCRIPTOR self.assertEqual( unittest_pb2._FOREIGNENUM, file_type.enum_types_by_name[unittest_pb2._FOREIGNENUM.name]) def testExtensionsByName(self): file_type = unittest_pb2.DESCRIPTOR self.assertEqual( unittest_pb2.my_extension_string, file_type.extensions_by_name[unittest_pb2.my_extension_string.name]) def testPublicImports(self): # Test public imports as embedded message. all_type_proto = unittest_pb2.TestAllTypes() self.assertEqual(0, all_type_proto.optional_public_import_message.e) # PublicImportMessage is actually defined in unittest_import_public_pb2 # module, and is public imported by unittest_import_pb2 module. public_import_proto = unittest_import_pb2.PublicImportMessage() self.assertEqual(0, public_import_proto.e) self.assertTrue(unittest_import_public_pb2.PublicImportMessage is unittest_import_pb2.PublicImportMessage) def testBadIdentifiers(self): # We're just testing that the code was imported without problems. message = test_bad_identifiers_pb2.TestBadIdentifiers() self.assertEqual(message.Extensions[test_bad_identifiers_pb2.message], "foo") self.assertEqual(message.Extensions[test_bad_identifiers_pb2.descriptor], "bar") self.assertEqual(message.Extensions[test_bad_identifiers_pb2.reflection], "baz") self.assertEqual(message.Extensions[test_bad_identifiers_pb2.service], "qux") def testOneof(self): desc = unittest_pb2.TestAllTypes.DESCRIPTOR self.assertEqual(1, len(desc.oneofs)) self.assertEqual('oneof_field', desc.oneofs[0].name) self.assertEqual(0, desc.oneofs[0].index) self.assertIs(desc, desc.oneofs[0].containing_type) self.assertIs(desc.oneofs[0], desc.oneofs_by_name['oneof_field']) nested_names = set(['oneof_uint32', 'oneof_nested_message', 'oneof_string', 'oneof_bytes']) self.assertEqual( nested_names, set([field.name for field in desc.oneofs[0].fields])) for field_name, field_desc in desc.fields_by_name.items(): if field_name in nested_names: self.assertIs(desc.oneofs[0], field_desc.containing_oneof) else: self.assertIsNone(field_desc.containing_oneof) class SymbolDatabaseRegistrationTest(unittest.TestCase): """Checks that messages, enums and files are correctly registered.""" def testGetSymbol(self): self.assertEqual( unittest_pb2.TestAllTypes, symbol_database.Default().GetSymbol( 'protobuf_unittest.TestAllTypes')) self.assertEqual( unittest_pb2.TestAllTypes.NestedMessage, symbol_database.Default().GetSymbol( 'protobuf_unittest.TestAllTypes.NestedMessage')) with self.assertRaises(KeyError): symbol_database.Default().GetSymbol('protobuf_unittest.NestedMessage') self.assertEqual( unittest_pb2.TestAllTypes.OptionalGroup, symbol_database.Default().GetSymbol( 'protobuf_unittest.TestAllTypes.OptionalGroup')) self.assertEqual( unittest_pb2.TestAllTypes.RepeatedGroup, symbol_database.Default().GetSymbol( 'protobuf_unittest.TestAllTypes.RepeatedGroup')) def testEnums(self): self.assertEqual( 'protobuf_unittest.ForeignEnum', symbol_database.Default().pool.FindEnumTypeByName( 'protobuf_unittest.ForeignEnum').full_name) self.assertEqual( 'protobuf_unittest.TestAllTypes.NestedEnum', symbol_database.Default().pool.FindEnumTypeByName( 'protobuf_unittest.TestAllTypes.NestedEnum').full_name) def testFindFileByName(self): self.assertEqual( 'google/protobuf/unittest.proto', symbol_database.Default().pool.FindFileByName( 'google/protobuf/unittest.proto').name) if __name__ == '__main__': unittest.main()