def test_deserialize_closed_range(self):
serialized = (int8_pack(1) + int64_pack(self.timestamp) +
int8_pack(2) + int64_pack(self.timestamp) + int8_pack(6))
self.assertEqual(
DateRangeType.deserialize(serialized, 5),
util.DateRange(lower_bound=util.DateRangeBound(
value=datetime.datetime(2017, 2, 1, 0, 0), precision='DAY'),
upper_bound=util.DateRangeBound(
value=datetime.datetime(2017, 2, 1, 15, 42, 12,
404000),
precision='MILLISECOND')))
def test_serialize_closed_range(self):
serialized = (int8_pack(1) + int64_pack(self.timestamp) +
int8_pack(5) + int64_pack(self.timestamp) + int8_pack(0))
deserialized = DateRangeType.deserialize(serialized, 5)
self.assertEqual(
deserialized,
util.DateRange(lower_bound=util.DateRangeBound(
value=datetime.datetime(2017, 2, 1, 15, 42, 12),
precision='SECOND'),
upper_bound=util.DateRangeBound(
value=datetime.datetime(2017, 12, 31),
precision='YEAR')))
def test_deserialize_zero_datetime(self):
"""
Test deserialization where timestamp = 0
Reproduces PYTHON-729
@since 2.0.0
@jira_ticket PYTHON-729
@expected_result deserialization doesn't raise an error
@test_category data_types
"""
DateRangeType.deserialize(
(int8_pack(1) + int64_pack(0) + int8_pack(0) + int64_pack(0) +
int8_pack(0)), 5)
def test_deserialize_single_value(self):
serialized = (int8_pack(0) + int64_pack(self.timestamp) + int8_pack(3))
self.assertEqual(
DateRangeType.deserialize(serialized, 5),
util.DateRange(value=util.DateRangeBound(value=datetime.datetime(
2017, 2, 1, 15, 42, 12, 404000),
precision='HOUR')))
def test_serialize_open_low(self):
serialized = (int8_pack(2) + int64_pack(self.timestamp) + int8_pack(3))
deserialized = DateRangeType.deserialize(serialized, 5)
self.assertEqual(
deserialized,
util.DateRange(lower_bound=util.DateRangeBound(
value=datetime.datetime(2017, 2, 1, 15), precision='HOUR'),
upper_bound=util.OPEN_BOUND))
def test_serialize_single_value(self):
serialized = (int8_pack(0) + int64_pack(self.timestamp) + int8_pack(5))
deserialized = DateRangeType.deserialize(serialized, 5)
self.assertEqual(
deserialized,
util.DateRange(value=util.DateRangeBound(value=datetime.datetime(
2017, 2, 1, 15, 42, 12),
precision='SECOND')))
def test_deserialize_open_low(self):
serialized = (int8_pack(3) + int64_pack(self.timestamp) + int8_pack(4))
deserialized = DateRangeType.deserialize(serialized, 5)
self.assertEqual(
deserialized,
util.DateRange(lower_bound=util.OPEN_BOUND,
upper_bound=util.DateRangeBound(
value=datetime.datetime(2017, 2, 1, 15, 42, 20,
1000),
precision='MINUTE')))
def test_datetype(self):
now_time_seconds = time.time()
now_datetime = datetime.datetime.utcfromtimestamp(now_time_seconds)
# Cassandra timestamps in millis
now_timestamp = now_time_seconds * 1e3
# same results serialized
self.assertEqual(DateType.serialize(now_datetime, 0),
DateType.serialize(now_timestamp, 0))
# deserialize
# epoc
expected = 0
self.assertEqual(DateType.deserialize(int64_pack(1000 * expected), 0),
datetime.datetime.utcfromtimestamp(expected))
# beyond 32b
expected = 2**33
self.assertEqual(DateType.deserialize(int64_pack(1000 * expected), 0),
datetime.datetime(2242, 3, 16, 12, 56, 32))
# less than epoc (PYTHON-119)
expected = -770172256
self.assertEqual(DateType.deserialize(int64_pack(1000 * expected), 0),
datetime.datetime(1945, 8, 5, 23, 15, 44))
# work around rounding difference among Python versions (PYTHON-230)
expected = 1424817268.274
self.assertEqual(
DateType.deserialize(int64_pack(int(1000 * expected)), 0),
datetime.datetime(2015, 2, 24, 22, 34, 28, 274000))
# Large date overflow (PYTHON-452)
expected = 2177403010.123
self.assertEqual(
DateType.deserialize(int64_pack(int(1000 * expected)), 0),
datetime.datetime(2038, 12, 31, 10, 10, 10, 123000))