def testExtremeFloatValues(self):
message = unittest_pb2.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
python类optional_float()的实例源码
def testExtremeFloatValues(self):
message = unittest_pb2.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
def testExtremeFloatValues(self):
message = unittest_pb2.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
def testExtremeFloatValues(self, message_module):
message = message_module.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
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)
def testExtremeFloatValues(self, message_module):
message = message_module.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
def testExtremeFloatValues(self, message_module):
message = message_module.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
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)
def testExtremeFloatValues(self, message_module):
message = message_module.TestAllTypes()
# Most positive exponent, no significand bits set.
kMostPosExponentNoSigBits = math.pow(2, 127)
message.optional_float = kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentNoSigBits)
# Most positive exponent, one significand bit set.
kMostPosExponentOneSigBit = 1.5 * math.pow(2, 127)
message.optional_float = kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostPosExponentOneSigBit)
# Repeat last two cases with values of same magnitude, but negative.
message.optional_float = -kMostPosExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentNoSigBits)
message.optional_float = -kMostPosExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostPosExponentOneSigBit)
# Most negative exponent, no significand bits set.
kMostNegExponentNoSigBits = math.pow(2, -127)
message.optional_float = kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentNoSigBits)
# Most negative exponent, one significand bit set.
kMostNegExponentOneSigBit = 1.5 * math.pow(2, -127)
message.optional_float = kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == kMostNegExponentOneSigBit)
# Repeat last two cases with values of the same magnitude, but negative.
message.optional_float = -kMostNegExponentNoSigBits
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentNoSigBits)
message.optional_float = -kMostNegExponentOneSigBit
message.ParseFromString(message.SerializeToString())
self.assertTrue(message.optional_float == -kMostNegExponentOneSigBit)
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)