fix: back to old version

test/test_dataCleaning.py

@@ -34,3 +34,32 @@ def test_data_cleaning():
 def test_data_cleaning_error():
     assert filter_data("test/example.csv") != final_data2
 
+
+def test_filter_format():
+     # Test with a CSV file
+     with tempfile.NamedTemporaryFile(
+         mode='w',
+         delete=False,
+         suffix='.csv'
+     ) as temp:
+
+         temp.write("col1,col2\n1,2\n3,4")
+         temp.seek(0)
+         result = filter_format(temp.name)
+         assert isinstance(result, pd.DataFrame)
+
+     # Test with a JSON file
+     with tempfile.NamedTemporaryFile(
+         mode='w',
+         delete=False,
+         suffix='.json'
+     ) as temp:
+         temp.write('{"col1": [1, 3], "col2": [2, 4]}')
+         temp.seek(0)
+         result = filter_format(temp.name)
+         assert isinstance(result, pd.DataFrame)
+
+     # Test with an invalid extension
+     location = "path/to/invalid/file.invalid"
+     with pytest.raises(Exception):
+         filter_format(location)