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-rwxr-xr-xpython/google/protobuf/internal/message_test.py521
1 files changed, 496 insertions, 25 deletions
diff --git a/python/google/protobuf/internal/message_test.py b/python/google/protobuf/internal/message_test.py
index 4ecaa1c7..320ff0d2 100755
--- a/python/google/protobuf/internal/message_test.py
+++ b/python/google/protobuf/internal/message_test.py
@@ -50,7 +50,9 @@ import pickle
import sys
import unittest
+import unittest
from google.protobuf.internal import _parameterized
+from google.protobuf import map_unittest_pb2
from google.protobuf import unittest_pb2
from google.protobuf import unittest_proto3_arena_pb2
from google.protobuf.internal import api_implementation
@@ -125,10 +127,17 @@ class MessageTest(unittest.TestCase):
self.assertEqual(unpickled_message, golden_message)
def testPositiveInfinity(self, message_module):
- golden_data = (b'\x5D\x00\x00\x80\x7F'
- b'\x61\x00\x00\x00\x00\x00\x00\xF0\x7F'
- b'\xCD\x02\x00\x00\x80\x7F'
- b'\xD1\x02\x00\x00\x00\x00\x00\x00\xF0\x7F')
+ if message_module is unittest_pb2:
+ golden_data = (b'\x5D\x00\x00\x80\x7F'
+ b'\x61\x00\x00\x00\x00\x00\x00\xF0\x7F'
+ b'\xCD\x02\x00\x00\x80\x7F'
+ b'\xD1\x02\x00\x00\x00\x00\x00\x00\xF0\x7F')
+ else:
+ golden_data = (b'\x5D\x00\x00\x80\x7F'
+ b'\x61\x00\x00\x00\x00\x00\x00\xF0\x7F'
+ b'\xCA\x02\x04\x00\x00\x80\x7F'
+ b'\xD2\x02\x08\x00\x00\x00\x00\x00\x00\xF0\x7F')
+
golden_message = message_module.TestAllTypes()
golden_message.ParseFromString(golden_data)
self.assertTrue(IsPosInf(golden_message.optional_float))
@@ -138,10 +147,17 @@ class MessageTest(unittest.TestCase):
self.assertEqual(golden_data, golden_message.SerializeToString())
def testNegativeInfinity(self, message_module):
- golden_data = (b'\x5D\x00\x00\x80\xFF'
- b'\x61\x00\x00\x00\x00\x00\x00\xF0\xFF'
- b'\xCD\x02\x00\x00\x80\xFF'
- b'\xD1\x02\x00\x00\x00\x00\x00\x00\xF0\xFF')
+ if message_module is unittest_pb2:
+ golden_data = (b'\x5D\x00\x00\x80\xFF'
+ b'\x61\x00\x00\x00\x00\x00\x00\xF0\xFF'
+ b'\xCD\x02\x00\x00\x80\xFF'
+ b'\xD1\x02\x00\x00\x00\x00\x00\x00\xF0\xFF')
+ else:
+ golden_data = (b'\x5D\x00\x00\x80\xFF'
+ b'\x61\x00\x00\x00\x00\x00\x00\xF0\xFF'
+ b'\xCA\x02\x04\x00\x00\x80\xFF'
+ b'\xD2\x02\x08\x00\x00\x00\x00\x00\x00\xF0\xFF')
+
golden_message = message_module.TestAllTypes()
golden_message.ParseFromString(golden_data)
self.assertTrue(IsNegInf(golden_message.optional_float))
@@ -1034,64 +1050,132 @@ class Proto2Test(unittest.TestCase):
self.assertEqual(len(parsing_merge.Extensions[
unittest_pb2.TestParsingMerge.repeated_ext]), 3)
+ def testPythonicInit(self):
+ message = unittest_pb2.TestAllTypes(
+ optional_int32=100,
+ optional_fixed32=200,
+ optional_float=300.5,
+ optional_bytes=b'x',
+ optionalgroup={'a': 400},
+ optional_nested_message={'bb': 500},
+ optional_nested_enum='BAZ',
+ repeatedgroup=[{'a': 600},
+ {'a': 700}],
+ repeated_nested_enum=['FOO', unittest_pb2.TestAllTypes.BAR],
+ default_int32=800,
+ oneof_string='y')
+ self.assertTrue(isinstance(message, unittest_pb2.TestAllTypes))
+ self.assertEqual(100, message.optional_int32)
+ self.assertEqual(200, message.optional_fixed32)
+ self.assertEqual(300.5, message.optional_float)
+ self.assertEqual(b'x', message.optional_bytes)
+ self.assertEqual(400, message.optionalgroup.a)
+ self.assertTrue(isinstance(message.optional_nested_message,
+ unittest_pb2.TestAllTypes.NestedMessage))
+ self.assertEqual(500, message.optional_nested_message.bb)
+ self.assertEqual(unittest_pb2.TestAllTypes.BAZ,
+ message.optional_nested_enum)
+ self.assertEqual(2, len(message.repeatedgroup))
+ self.assertEqual(600, message.repeatedgroup[0].a)
+ self.assertEqual(700, message.repeatedgroup[1].a)
+ self.assertEqual(2, len(message.repeated_nested_enum))
+ self.assertEqual(unittest_pb2.TestAllTypes.FOO,
+ message.repeated_nested_enum[0])
+ self.assertEqual(unittest_pb2.TestAllTypes.BAR,
+ message.repeated_nested_enum[1])
+ self.assertEqual(800, message.default_int32)
+ self.assertEqual('y', message.oneof_string)
+ self.assertFalse(message.HasField('optional_int64'))
+ self.assertEqual(0, len(message.repeated_float))
+ self.assertEqual(42, message.default_int64)
+
+ message = unittest_pb2.TestAllTypes(optional_nested_enum=u'BAZ')
+ self.assertEqual(unittest_pb2.TestAllTypes.BAZ,
+ message.optional_nested_enum)
+
+ with self.assertRaises(ValueError):
+ unittest_pb2.TestAllTypes(
+ optional_nested_message={'INVALID_NESTED_FIELD': 17})
+
+ with self.assertRaises(TypeError):
+ unittest_pb2.TestAllTypes(
+ optional_nested_message={'bb': 'INVALID_VALUE_TYPE'})
+
+ with self.assertRaises(ValueError):
+ unittest_pb2.TestAllTypes(optional_nested_enum='INVALID_LABEL')
+
+ with self.assertRaises(ValueError):
+ unittest_pb2.TestAllTypes(repeated_nested_enum='FOO')
+
# Class to test proto3-only features/behavior (updated field presence & enums)
class Proto3Test(unittest.TestCase):
+ # Utility method for comparing equality with a map.
+ def assertMapIterEquals(self, map_iter, dict_value):
+ # Avoid mutating caller's copy.
+ dict_value = dict(dict_value)
+
+ for k, v in map_iter:
+ self.assertEqual(v, dict_value[k])
+ del dict_value[k]
+
+ self.assertEqual({}, dict_value)
+
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")
+ message.HasField('optional_int32')
with self.assertRaises(ValueError):
- message.HasField("optional_float")
+ message.HasField('optional_float')
with self.assertRaises(ValueError):
- message.HasField("optional_string")
+ message.HasField('optional_string')
with self.assertRaises(ValueError):
- message.HasField("optional_bool")
+ message.HasField('optional_bool')
# But we can still test presence of submessage fields.
- self.assertFalse(message.HasField("optional_nested_message"))
+ 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")
+ message.HasField('field_doesnt_exist')
with self.assertRaises(ValueError):
- message.HasField("repeated_int32")
+ message.HasField('repeated_int32')
with self.assertRaises(ValueError):
- message.HasField("repeated_nested_message")
+ 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('', 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"))
+ 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_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")
+ 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('', message.optional_string)
self.assertEqual(False, message.optional_bool)
self.assertEqual(0, message.optional_nested_message.bb)
@@ -1113,6 +1197,393 @@ class Proto3Test(unittest.TestCase):
self.assertEqual(1234567, m2.optional_nested_enum)
self.assertEqual(7654321, m2.repeated_nested_enum[0])
+ # Map isn't really a proto3-only feature. But there is no proto2 equivalent
+ # of google/protobuf/map_unittest.proto right now, so it's not easy to
+ # test both with the same test like we do for the other proto2/proto3 tests.
+ # (google/protobuf/map_protobuf_unittest.proto is very different in the set
+ # of messages and fields it contains).
+ def testScalarMapDefaults(self):
+ msg = map_unittest_pb2.TestMap()
+
+ # Scalars start out unset.
+ self.assertFalse(-123 in msg.map_int32_int32)
+ self.assertFalse(-2**33 in msg.map_int64_int64)
+ self.assertFalse(123 in msg.map_uint32_uint32)
+ self.assertFalse(2**33 in msg.map_uint64_uint64)
+ self.assertFalse('abc' in msg.map_string_string)
+ self.assertFalse(888 in msg.map_int32_enum)
+
+ # Accessing an unset key returns the default.
+ self.assertEqual(0, msg.map_int32_int32[-123])
+ self.assertEqual(0, msg.map_int64_int64[-2**33])
+ self.assertEqual(0, msg.map_uint32_uint32[123])
+ self.assertEqual(0, msg.map_uint64_uint64[2**33])
+ self.assertEqual('', msg.map_string_string['abc'])
+ self.assertEqual(0, msg.map_int32_enum[888])
+
+ # It also sets the value in the map
+ self.assertTrue(-123 in msg.map_int32_int32)
+ self.assertTrue(-2**33 in msg.map_int64_int64)
+ self.assertTrue(123 in msg.map_uint32_uint32)
+ self.assertTrue(2**33 in msg.map_uint64_uint64)
+ self.assertTrue('abc' in msg.map_string_string)
+ self.assertTrue(888 in msg.map_int32_enum)
+
+ self.assertTrue(isinstance(msg.map_string_string['abc'], unicode))
+
+ # Accessing an unset key still throws TypeError of the type of the key
+ # is incorrect.
+ with self.assertRaises(TypeError):
+ msg.map_string_string[123]
+
+ self.assertFalse(123 in msg.map_string_string)
+
+ def testMapGet(self):
+ # Need to test that get() properly returns the default, even though the dict
+ # has defaultdict-like semantics.
+ msg = map_unittest_pb2.TestMap()
+
+ self.assertIsNone(msg.map_int32_int32.get(5))
+ self.assertEquals(10, msg.map_int32_int32.get(5, 10))
+ self.assertIsNone(msg.map_int32_int32.get(5))
+
+ msg.map_int32_int32[5] = 15
+ self.assertEquals(15, msg.map_int32_int32.get(5))
+
+ self.assertIsNone(msg.map_int32_foreign_message.get(5))
+ self.assertEquals(10, msg.map_int32_foreign_message.get(5, 10))
+
+ submsg = msg.map_int32_foreign_message[5]
+ self.assertIs(submsg, msg.map_int32_foreign_message.get(5))
+
+ def testScalarMap(self):
+ msg = map_unittest_pb2.TestMap()
+
+ self.assertEqual(0, len(msg.map_int32_int32))
+ self.assertFalse(5 in msg.map_int32_int32)
+
+ msg.map_int32_int32[-123] = -456
+ msg.map_int64_int64[-2**33] = -2**34
+ msg.map_uint32_uint32[123] = 456
+ msg.map_uint64_uint64[2**33] = 2**34
+ msg.map_string_string['abc'] = '123'
+ msg.map_int32_enum[888] = 2
+
+ self.assertEqual([], msg.FindInitializationErrors())
+
+ self.assertEqual(1, len(msg.map_string_string))
+
+ # Bad key.
+ with self.assertRaises(TypeError):
+ msg.map_string_string[123] = '123'
+
+ # Verify that trying to assign a bad key doesn't actually add a member to
+ # the map.
+ self.assertEqual(1, len(msg.map_string_string))
+
+ # Bad value.
+ with self.assertRaises(TypeError):
+ msg.map_string_string['123'] = 123
+
+ serialized = msg.SerializeToString()
+ msg2 = map_unittest_pb2.TestMap()
+ msg2.ParseFromString(serialized)
+
+ # Bad key.
+ with self.assertRaises(TypeError):
+ msg2.map_string_string[123] = '123'
+
+ # Bad value.
+ with self.assertRaises(TypeError):
+ msg2.map_string_string['123'] = 123
+
+ self.assertEqual(-456, msg2.map_int32_int32[-123])
+ self.assertEqual(-2**34, msg2.map_int64_int64[-2**33])
+ self.assertEqual(456, msg2.map_uint32_uint32[123])
+ self.assertEqual(2**34, msg2.map_uint64_uint64[2**33])
+ self.assertEqual('123', msg2.map_string_string['abc'])
+ self.assertEqual(2, msg2.map_int32_enum[888])
+
+ def testStringUnicodeConversionInMap(self):
+ msg = map_unittest_pb2.TestMap()
+
+ unicode_obj = u'\u1234'
+ bytes_obj = unicode_obj.encode('utf8')
+
+ msg.map_string_string[bytes_obj] = bytes_obj
+
+ (key, value) = msg.map_string_string.items()[0]
+
+ self.assertEqual(key, unicode_obj)
+ self.assertEqual(value, unicode_obj)
+
+ self.assertTrue(isinstance(key, unicode))
+ self.assertTrue(isinstance(value, unicode))
+
+ def testMessageMap(self):
+ msg = map_unittest_pb2.TestMap()
+
+ self.assertEqual(0, len(msg.map_int32_foreign_message))
+ self.assertFalse(5 in msg.map_int32_foreign_message)
+
+ msg.map_int32_foreign_message[123]
+ # get_or_create() is an alias for getitem.
+ msg.map_int32_foreign_message.get_or_create(-456)
+
+ self.assertEqual(2, len(msg.map_int32_foreign_message))
+ self.assertIn(123, msg.map_int32_foreign_message)
+ self.assertIn(-456, msg.map_int32_foreign_message)
+ self.assertEqual(2, len(msg.map_int32_foreign_message))
+
+ # Bad key.
+ with self.assertRaises(TypeError):
+ msg.map_int32_foreign_message['123']
+
+ # Can't assign directly to submessage.
+ with self.assertRaises(ValueError):
+ msg.map_int32_foreign_message[999] = msg.map_int32_foreign_message[123]
+
+ # Verify that trying to assign a bad key doesn't actually add a member to
+ # the map.
+ self.assertEqual(2, len(msg.map_int32_foreign_message))
+
+ serialized = msg.SerializeToString()
+ msg2 = map_unittest_pb2.TestMap()
+ msg2.ParseFromString(serialized)
+
+ self.assertEqual(2, len(msg2.map_int32_foreign_message))
+ self.assertIn(123, msg2.map_int32_foreign_message)
+ self.assertIn(-456, msg2.map_int32_foreign_message)
+ self.assertEqual(2, len(msg2.map_int32_foreign_message))
+
+ def testMergeFrom(self):
+ msg = map_unittest_pb2.TestMap()
+ msg.map_int32_int32[12] = 34
+ msg.map_int32_int32[56] = 78
+ msg.map_int64_int64[22] = 33
+ msg.map_int32_foreign_message[111].c = 5
+ msg.map_int32_foreign_message[222].c = 10
+
+ msg2 = map_unittest_pb2.TestMap()
+ msg2.map_int32_int32[12] = 55
+ msg2.map_int64_int64[88] = 99
+ msg2.map_int32_foreign_message[222].c = 15
+
+ msg2.MergeFrom(msg)
+
+ self.assertEqual(34, msg2.map_int32_int32[12])
+ self.assertEqual(78, msg2.map_int32_int32[56])
+ self.assertEqual(33, msg2.map_int64_int64[22])
+ self.assertEqual(99, msg2.map_int64_int64[88])
+ self.assertEqual(5, msg2.map_int32_foreign_message[111].c)
+ self.assertEqual(10, msg2.map_int32_foreign_message[222].c)
+
+ # Verify that there is only one entry per key, even though the MergeFrom
+ # may have internally created multiple entries for a single key in the
+ # list representation.
+ as_dict = {}
+ for key in msg2.map_int32_foreign_message:
+ self.assertFalse(key in as_dict)
+ as_dict[key] = msg2.map_int32_foreign_message[key].c
+
+ self.assertEqual({111: 5, 222: 10}, as_dict)
+
+ # Special case: test that delete of item really removes the item, even if
+ # there might have physically been duplicate keys due to the previous merge.
+ # This is only a special case for the C++ implementation which stores the
+ # map as an array.
+ del msg2.map_int32_int32[12]
+ self.assertFalse(12 in msg2.map_int32_int32)
+
+ del msg2.map_int32_foreign_message[222]
+ self.assertFalse(222 in msg2.map_int32_foreign_message)
+
+ def testIntegerMapWithLongs(self):
+ msg = map_unittest_pb2.TestMap()
+ msg.map_int32_int32[long(-123)] = long(-456)
+ msg.map_int64_int64[long(-2**33)] = long(-2**34)
+ msg.map_uint32_uint32[long(123)] = long(456)
+ msg.map_uint64_uint64[long(2**33)] = long(2**34)
+
+ serialized = msg.SerializeToString()
+ msg2 = map_unittest_pb2.TestMap()
+ msg2.ParseFromString(serialized)
+
+ self.assertEqual(-456, msg2.map_int32_int32[-123])
+ self.assertEqual(-2**34, msg2.map_int64_int64[-2**33])
+ self.assertEqual(456, msg2.map_uint32_uint32[123])
+ self.assertEqual(2**34, msg2.map_uint64_uint64[2**33])
+
+ def testMapAssignmentCausesPresence(self):
+ msg = map_unittest_pb2.TestMapSubmessage()
+ msg.test_map.map_int32_int32[123] = 456
+
+ serialized = msg.SerializeToString()
+ msg2 = map_unittest_pb2.TestMapSubmessage()
+ msg2.ParseFromString(serialized)
+
+ self.assertEqual(msg, msg2)
+
+ # Now test that various mutations of the map properly invalidate the
+ # cached size of the submessage.
+ msg.test_map.map_int32_int32[888] = 999
+ serialized = msg.SerializeToString()
+ msg2.ParseFromString(serialized)
+ self.assertEqual(msg, msg2)
+
+ msg.test_map.map_int32_int32.clear()
+ serialized = msg.SerializeToString()
+ msg2.ParseFromString(serialized)
+ self.assertEqual(msg, msg2)
+
+ def testMapAssignmentCausesPresenceForSubmessages(self):
+ msg = map_unittest_pb2.TestMapSubmessage()
+ msg.test_map.map_int32_foreign_message[123].c = 5
+
+ serialized = msg.SerializeToString()
+ msg2 = map_unittest_pb2.TestMapSubmessage()
+ msg2.ParseFromString(serialized)
+
+ self.assertEqual(msg, msg2)
+
+ # Now test that various mutations of the map properly invalidate the
+ # cached size of the submessage.
+ msg.test_map.map_int32_foreign_message[888].c = 7
+ serialized = msg.SerializeToString()
+ msg2.ParseFromString(serialized)
+ self.assertEqual(msg, msg2)
+
+ msg.test_map.map_int32_foreign_message[888].MergeFrom(
+ msg.test_map.map_int32_foreign_message[123])
+ serialized = msg.SerializeToString()
+ msg2.ParseFromString(serialized)
+ self.assertEqual(msg, msg2)
+
+ msg.test_map.map_int32_foreign_message.clear()
+ serialized = msg.SerializeToString()
+ msg2.ParseFromString(serialized)
+ self.assertEqual(msg, msg2)
+
+ def testModifyMapWhileIterating(self):
+ msg = map_unittest_pb2.TestMap()
+
+ string_string_iter = iter(msg.map_string_string)
+ int32_foreign_iter = iter(msg.map_int32_foreign_message)
+
+ msg.map_string_string['abc'] = '123'
+ msg.map_int32_foreign_message[5].c = 5
+
+ with self.assertRaises(RuntimeError):
+ for key in string_string_iter:
+ pass
+
+ with self.assertRaises(RuntimeError):
+ for key in int32_foreign_iter:
+ pass
+
+ def testSubmessageMap(self):
+ msg = map_unittest_pb2.TestMap()
+
+ submsg = msg.map_int32_foreign_message[111]
+ self.assertIs(submsg, msg.map_int32_foreign_message[111])
+ self.assertTrue(isinstance(submsg, unittest_pb2.ForeignMessage))
+
+ submsg.c = 5
+
+ serialized = msg.SerializeToString()
+ msg2 = map_unittest_pb2.TestMap()
+ msg2.ParseFromString(serialized)
+
+ self.assertEqual(5, msg2.map_int32_foreign_message[111].c)
+
+ # Doesn't allow direct submessage assignment.
+ with self.assertRaises(ValueError):
+ msg.map_int32_foreign_message[88] = unittest_pb2.ForeignMessage()
+
+ def testMapIteration(self):
+ msg = map_unittest_pb2.TestMap()
+
+ for k, v in msg.map_int32_int32.iteritems():
+ # Should not be reached.
+ self.assertTrue(False)
+
+ msg.map_int32_int32[2] = 4
+ msg.map_int32_int32[3] = 6
+ msg.map_int32_int32[4] = 8
+ self.assertEqual(3, len(msg.map_int32_int32))
+
+ matching_dict = {2: 4, 3: 6, 4: 8}
+ self.assertMapIterEquals(msg.map_int32_int32.iteritems(), matching_dict)
+
+ def testMapIterationClearMessage(self):
+ # Iterator needs to work even if message and map are deleted.
+ msg = map_unittest_pb2.TestMap()
+
+ msg.map_int32_int32[2] = 4
+ msg.map_int32_int32[3] = 6
+ msg.map_int32_int32[4] = 8
+
+ it = msg.map_int32_int32.iteritems()
+ del msg
+
+ matching_dict = {2: 4, 3: 6, 4: 8}
+ self.assertMapIterEquals(it, matching_dict)
+
+ def testMapConstruction(self):
+ msg = map_unittest_pb2.TestMap(map_int32_int32={1: 2, 3: 4})
+ self.assertEqual(2, msg.map_int32_int32[1])
+ self.assertEqual(4, msg.map_int32_int32[3])
+
+ msg = map_unittest_pb2.TestMap(
+ map_int32_foreign_message={3: unittest_pb2.ForeignMessage(c=5)})
+ self.assertEqual(5, msg.map_int32_foreign_message[3].c)
+
+ def testMapValidAfterFieldCleared(self):
+ # Map needs to work even if field is cleared.
+ # For the C++ implementation this tests the correctness of
+ # ScalarMapContainer::Release()
+ msg = map_unittest_pb2.TestMap()
+ map = msg.map_int32_int32
+
+ map[2] = 4
+ map[3] = 6
+ map[4] = 8
+
+ msg.ClearField('map_int32_int32')
+ matching_dict = {2: 4, 3: 6, 4: 8}
+ self.assertMapIterEquals(map.iteritems(), matching_dict)
+
+ def testMapIterValidAfterFieldCleared(self):
+ # Map iterator needs to work even if field is cleared.
+ # For the C++ implementation this tests the correctness of
+ # ScalarMapContainer::Release()
+ msg = map_unittest_pb2.TestMap()
+
+ msg.map_int32_int32[2] = 4
+ msg.map_int32_int32[3] = 6
+ msg.map_int32_int32[4] = 8
+
+ it = msg.map_int32_int32.iteritems()
+
+ msg.ClearField('map_int32_int32')
+ matching_dict = {2: 4, 3: 6, 4: 8}
+ self.assertMapIterEquals(it, matching_dict)
+
+ def testMapDelete(self):
+ msg = map_unittest_pb2.TestMap()
+
+ self.assertEqual(0, len(msg.map_int32_int32))
+
+ msg.map_int32_int32[4] = 6
+ self.assertEqual(1, len(msg.map_int32_int32))
+
+ with self.assertRaises(KeyError):
+ del msg.map_int32_int32[88]
+
+ del msg.map_int32_int32[4]
+ self.assertEqual(0, len(msg.map_int32_int32))
+
+
class ValidTypeNamesTest(unittest.TestCase):