Python message.optional_string方法代碼示例

# 需要導入模塊: from google.protobuf import message [as 別名]
# 或者: from google.protobuf.message import optional_string [as 別名]
def testBadUtf8String(self, message_module):
    if api_implementation.Type() != 'python':
      self.skipTest("Skipping testBadUtf8String, currently only the python "
                    "api implementation raises UnicodeDecodeError when a "
                    "string field contains bad utf-8.")
    bad_utf8_data = test_util.GoldenFileData('bad_utf8_string')
    with self.assertRaises(UnicodeDecodeError) as context:
      message_module.TestAllTypes.FromString(bad_utf8_data)
    self.assertIn('TestAllTypes.optional_string', str(context.exception)) 

# 需要導入模塊: from google.protobuf import message [as 別名]
# 或者: from google.protobuf.message import optional_string [as 別名]
def testAssignByteStringToUnicodeField(self, message_module):
    """Assigning a byte string to a string field should result
    in the value being converted to a Unicode string."""
    m = message_module.TestAllTypes()
    m.optional_string = str('')
    self.assertIsInstance(m.optional_string, six.text_type) 

# 需要導入模塊: from google.protobuf import message [as 別名]
# 或者: from google.protobuf.message import optional_string [as 別名]
def testParsingMerge(self):
    """Check the merge behavior when a required or optional field appears
    multiple times in the input."""
    messages = [
        unittest_pb2.TestAllTypes(),
        unittest_pb2.TestAllTypes(),
        unittest_pb2.TestAllTypes() ]
    messages[0].optional_int32 = 1
    messages[1].optional_int64 = 2
    messages[2].optional_int32 = 3
    messages[2].optional_string = 'hello'

    merged_message = unittest_pb2.TestAllTypes()
    merged_message.optional_int32 = 3
    merged_message.optional_int64 = 2
    merged_message.optional_string = 'hello'

    generator = unittest_pb2.TestParsingMerge.RepeatedFieldsGenerator()
    generator.field1.extend(messages)
    generator.field2.extend(messages)
    generator.field3.extend(messages)
    generator.ext1.extend(messages)
    generator.ext2.extend(messages)
    generator.group1.add().field1.MergeFrom(messages[0])
    generator.group1.add().field1.MergeFrom(messages[1])
    generator.group1.add().field1.MergeFrom(messages[2])
    generator.group2.add().field1.MergeFrom(messages[0])
    generator.group2.add().field1.MergeFrom(messages[1])
    generator.group2.add().field1.MergeFrom(messages[2])

    data = generator.SerializeToString()
    parsing_merge = unittest_pb2.TestParsingMerge()
    parsing_merge.ParseFromString(data)

    # Required and optional fields should be merged.
    self.assertEqual(parsing_merge.required_all_types, merged_message)
    self.assertEqual(parsing_merge.optional_all_types, merged_message)
    self.assertEqual(parsing_merge.optionalgroup.optional_group_all_types,
                     merged_message)
    self.assertEqual(parsing_merge.Extensions[
                     unittest_pb2.TestParsingMerge.optional_ext],
                     merged_message)

    # Repeated fields should not be merged.
    self.assertEqual(len(parsing_merge.repeated_all_types), 3)
    self.assertEqual(len(parsing_merge.repeatedgroup), 3)
    self.assertEqual(len(parsing_merge.Extensions[
        unittest_pb2.TestParsingMerge.repeated_ext]), 3) 

# 需要導入模塊: from google.protobuf import message [as 別名]
# 或者: from google.protobuf.message import optional_string [as 別名]
def testFieldPresence(self):
    message = unittest_proto3_arena_pb2.TestAllTypes()

    # We can't test presence of non-repeated, non-submessage fields.
    with self.assertRaises(ValueError):
      message.HasField('optional_int32')
    with self.assertRaises(ValueError):
      message.HasField('optional_float')
    with self.assertRaises(ValueError):
      message.HasField('optional_string')
    with self.assertRaises(ValueError):
      message.HasField('optional_bool')

    # But we can still test presence of submessage fields.
    self.assertFalse(message.HasField('optional_nested_message'))

    # As with proto2, we can't test presence of fields that don't exist, or
    # repeated fields.
    with self.assertRaises(ValueError):
      message.HasField('field_doesnt_exist')

    with self.assertRaises(ValueError):
      message.HasField('repeated_int32')
    with self.assertRaises(ValueError):
      message.HasField('repeated_nested_message')

    # Fields should default to their type-specific default.
    self.assertEqual(0, message.optional_int32)
    self.assertEqual(0, message.optional_float)
    self.assertEqual('', message.optional_string)
    self.assertEqual(False, message.optional_bool)
    self.assertEqual(0, message.optional_nested_message.bb)

    # Setting a submessage should still return proper presence information.
    message.optional_nested_message.bb = 0
    self.assertTrue(message.HasField('optional_nested_message'))

    # Set the fields to non-default values.
    message.optional_int32 = 5
    message.optional_float = 1.1
    message.optional_string = 'abc'
    message.optional_bool = True
    message.optional_nested_message.bb = 15

    # Clearing the fields unsets them and resets their value to default.
    message.ClearField('optional_int32')
    message.ClearField('optional_float')
    message.ClearField('optional_string')
    message.ClearField('optional_bool')
    message.ClearField('optional_nested_message')

    self.assertEqual(0, message.optional_int32)
    self.assertEqual(0, message.optional_float)
    self.assertEqual('', message.optional_string)
    self.assertEqual(False, message.optional_bool)
    self.assertEqual(0, message.optional_nested_message.bb)