def test_decode_timestamp_with_incorrect_size_bytes_raises(valid_bytes_128):
"""
Assert that :func:`~ulid.codec.decode_timestamp` raises a :class:`~ValueError` when given
a type that cannot be represented as exactly 48 bits.
"""
with pytest.raises(ValueError) as ex:
codec.decode_timestamp(valid_bytes_128)
assert ex.match(TIMESTAMP_SIZE_EXC_REGEX)
def test_decode_timestamp_with_unsupported_type_raises(unsupported_type):
"""
Assert that :func:`~ulid.codec.decode_timestamp` raises a :class:`~ValueError` when given
a type it cannot compute a timestamp value from.
"""
with pytest.raises(ValueError) as ex:
codec.decode_timestamp(unsupported_type())
assert ex.match(UNSUPPORTED_TIMESTAMP_TYPE_EXC_REGEX)
def test_decode_timestamp_timestamp_returns_timestamp_instance(valid_bytes_48):
"""
Assert that :func:`~ulid.codec.decode_timestamp` returns a new :class:`~ulid.ulid.Timestamp` instance
from the given timestamp as a :class:`~ulid.ulid.Timestamp`.
"""
value = ulid.Timestamp(valid_bytes_48)
instance = codec.decode_timestamp(value)
assert isinstance(instance, ulid.Timestamp)
assert instance == value
def test_decode_timestamp_float_returns_timestamp_instance():
"""
Assert that :func:`~ulid.codec.decode_timestamp` returns a new :class:`~ulid.ulid.Timestamp` instance
from the given Unix time from epoch in seconds as a :class:`~float`.
"""
value = float(time.time())
instance = codec.decode_timestamp(value)
assert isinstance(instance, ulid.Timestamp)
assert int(instance.timestamp) == int(value)
def test_decode_timestamp_datetime_returns_timestamp_instance():
"""
Assert that :func:`~ulid.codec.decode_timestamp` returns a new :class:`~ulid.ulid.Timestamp` instance
from the given Unix time from epoch in seconds as an :class:`~datetime.datetime`.
"""
value = datetime.datetime.now()
instance = codec.decode_timestamp(value)
assert isinstance(instance, ulid.Timestamp)
assert int(instance.timestamp) == int(value.timestamp())
def test_decode_timestamp_bytes_returns_timestamp_instance(
buffer_type, valid_bytes_48):
"""
Assert that :func:`~ulid.codec.decode_timestamp` returns a new :class:`~ulid.ulid.Timestamp` instance
from the given timestamp as an object that supports the buffer protocol.
"""
value = buffer_type(valid_bytes_48)
instance = codec.decode_timestamp(value)
assert isinstance(instance, ulid.Timestamp)
assert instance.bytes == value