def test_can_convert_to_records_without_objects_returns_true_otherwise(fast_serializable_check):
with FastCheckSerializable(fast_serializable_check):
store = anr.PandasSerializer()
mymock = Mock(return_value=(np.rec.array([(1356998400000000000, 'a')], dtype=[('index', '<M8[ns]'), ('values', 'S2')]), None))
if fast_serializable_check:
store.fast_check_serializable = mymock
else:
store._to_records = mymock
with patch('arctic.serialization.numpy_records.log') as mock_log:
assert store.can_convert_to_records_without_objects(sentinel.df, 'my_symbol') is True
assert mock_log.warning.call_count == 0
if fast_serializable_check:
store.fast_check_serializable.assert_called_once_with(sentinel.df)
else:
store._to_records.assert_called_once_with(sentinel.df)
def test_can_convert_to_records_without_objects_returns_false_when_records_have_object_dtype(fast_serializable_check):
with FastCheckSerializable(fast_serializable_check):
store = anr.PandasSerializer()
mymock = Mock(return_value=(np.array(['a', 'b', None, 'd']), None))
if fast_serializable_check:
store.fast_check_serializable = mymock
else:
store._to_records = mymock
with patch('arctic.serialization.numpy_records.log') as mock_log:
assert store.can_convert_to_records_without_objects(sentinel.df, 'my_symbol') is False
mock_log.warning.assert_called_once_with('Pandas dataframe my_symbol contains Objects, saving as Blob')
if fast_serializable_check:
store.fast_check_serializable.assert_called_once_with(sentinel.df)
else:
store._to_records.assert_called_once_with(sentinel.df)
def test_can_convert_to_records_without_objects_returns_false_when_records_have_arrays_in_them(fast_serializable_check):
with FastCheckSerializable(fast_serializable_check):
store = anr.PandasSerializer()
mymock = Mock(return_value=(np.rec.array([(1356998400000000000, ['A', 'BC'])], dtype=[('index', '<M8[ns]'), ('values', 'S2', (2,))]), None))
if fast_serializable_check:
store.fast_check_serializable = mymock
else:
store._to_records = mymock
with patch('arctic.serialization.numpy_records.log') as mock_log:
assert store.can_convert_to_records_without_objects(sentinel.df, 'my_symbol') is False
mock_log.warning.assert_called_once_with('Pandas dataframe my_symbol contains >1 dimensional arrays, saving as Blob')
if fast_serializable_check:
store.fast_check_serializable.assert_called_once_with(sentinel.df)
else:
store._to_records.assert_called_once_with(sentinel.df)
def test_can_convert_to_records_without_objects_returns_false_on_exception_in_to_records(fast_serializable_check):
with FastCheckSerializable(fast_serializable_check):
store = anr.PandasSerializer()
mymock = Mock(side_effect=TypeError('uhoh'))
if fast_serializable_check:
store.fast_check_serializable = mymock
else:
store._to_records = mymock
with patch('arctic.serialization.numpy_records.log') as mock_log:
assert store.can_convert_to_records_without_objects(sentinel.df, 'my_symbol') is False
mock_log.warning.assert_called_once_with('Pandas dataframe my_symbol caused exception "TypeError(\'uhoh\',)" '
'when attempting to convert to records. Saving as Blob.')
if fast_serializable_check:
store.fast_check_serializable.assert_called_once_with(sentinel.df)
else:
store._to_records.assert_called_once_with(sentinel.df)