def test_save_and_load_parquet(self):
obj = pd.DataFrame(dict(a=[1, 2], b=[3, 4]))
file_path = os.path.join(_get_temporary_directory(), 'test.parquet')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
loaded = target.load()
pd.testing.assert_frame_equal(loaded, obj)
def test_save_pandas_series(self):
obj = pd.Series(data=[1, 2], name='column_name')
file_path = os.path.join(_get_temporary_directory(), 'test.csv')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
loaded = target.load()
pd.testing.assert_series_equal(loaded['column_name'], obj)
def test_dump_without_lock(self):
with patch('gokart.target.TargetOnKart.wrap_with_lock'
) as wrap_with_lock_mock:
obj = 1
file_path = os.path.join(_get_temporary_directory(), 'test.pkl')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj, lock_at_dump=False)
wrap_with_lock_mock.assert_not_called()
def test_save_and_load_pickle_file(self):
obj = 1
file_path = os.path.join(_get_temporary_directory(), 'test.pkl')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
loaded = target.load()
self.assertEqual(loaded, obj)
def test_save_and_load_gzip(self):
obj = 1
file_path = os.path.join(_get_temporary_directory(), 'test.gz')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
loaded = target.load()
self.assertEqual(loaded, [str(obj)], msg='should save an object as List[str].')
def test_save_and_load_feather(self):
obj = pd.DataFrame(dict(a=[1, 2], b=[3, 4]),
index=pd.Index([33, 44], name='object_index'))
file_path = os.path.join(_get_temporary_directory(), 'test.feather')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
loaded = target.load()
pd.testing.assert_frame_equal(loaded, obj)
def test_last_modified_time(self):
conn = boto3.resource('s3', region_name='us-east-1')
conn.create_bucket(Bucket='test')
obj = 1
file_path = os.path.join('s3://test/', 'test.pkl')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
t = target.last_modification_time()
self.assertIsInstance(t, datetime)
def test_save_and_load_figure(self):
figure_binary = io.BytesIO()
pd.DataFrame(dict(x=range(10), y=range(10))).plot.scatter(x='x', y='y')
pyplot.savefig(figure_binary)
figure_binary.seek(0)
file_path = os.path.join(_get_temporary_directory(), 'test.png')
target = make_target(file_path=file_path, unique_id=None)
target.dump(figure_binary.read())
loaded = target.load()
self.assertGreater(len(loaded), 1000) # any binary
def test_save_and_load_pickle_file(self):
obj = 1
file_path = os.path.join(_get_temporary_directory(), 'test.pkl')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
with unittest.mock.patch('gokart.file_processor._ChunkedLargeFileReader', wraps=_ChunkedLargeFileReader) as monkey:
loaded = target.load()
monkey.assert_called()
self.assertEqual(loaded, obj)
def test_save_on_s3(self):
conn = boto3.resource('s3', region_name='us-east-1')
conn.create_bucket(Bucket='test')
obj = 1
file_path = os.path.join('s3://test/', 'test.pkl')
target = make_target(file_path=file_path, unique_id=None)
target.dump(obj)
loaded = target.load()
self.assertEqual(loaded, obj)
def _load_function(path):
return make_target(file_path=path).load()
def _save_function(obj, path):
make_target(file_path=path).dump(obj)
def test_last_modified_time_without_file(self):
file_path = os.path.join(_get_temporary_directory(), 'test.csv')
target = make_target(file_path=file_path, unique_id=None)
with self.assertRaises(FileNotFoundError):
target.last_modification_time()