diff --git a/tests/gaze/io/csv_test.py b/tests/gaze/io/csv_test.py
index c64264ebe..cd5e35abd 100644
--- a/tests/gaze/io/csv_test.py
+++ b/tests/gaze/io/csv_test.py
@@ -27,20 +27,24 @@
     ('kwargs', 'shape'),
     [
         pytest.param(
-            {'file': 'tests/gaze/io/files/monocular_example.csv',
-                'time_column': 'time', 'pixel_columns': ['x_left_pix', 'y_left_pix']},
+            {
+                'file': 'tests/gaze/io/files/monocular_example.csv',
+                'time_column': 'time', 'pixel_columns': ['x_left_pix', 'y_left_pix'],
+            },
             (10, 2),
             id='csv_mono_shape',
         ),
         pytest.param(
-            {'file': 'tests/gaze/io/files/binocular_example.csv',
+            {
+                'file': 'tests/gaze/io/files/binocular_example.csv',
                 'time_column': 'time',
                 'pixel_columns': ['x_left_pix', 'y_left_pix', 'x_right_pix', 'y_right_pix'],
-                'position_columns': ['x_left_pos', 'y_left_pos', 'x_right_pos', 'y_right_pos']},
+                'position_columns': ['x_left_pos', 'y_left_pos', 'x_right_pos', 'y_right_pos'],
+            },
             (10, 3),
             id='csv_bino_shape',
         ),
-    ]
+    ],
 )
 def test_shapes(kwargs, shape):
     gaze_dataframe = pm.gaze.from_csv(**kwargs)
diff --git a/tests/gaze/io/files/binocular_example.csv b/tests/gaze/io/files/binocular_example.csv
index e6672e317..ddfd55ab4 100644
--- a/tests/gaze/io/files/binocular_example.csv
+++ b/tests/gaze/io/files/binocular_example.csv
@@ -8,4 +8,4 @@ time,x_left_pix,y_left_pix,x_right_pix,y_right_pix,x_left_pos,y_left_pos,x_right
 0,0,0,0,0,-23.104783, -13.489493,-23.104783, -13.489493
 0,0,0,0,0,-23.104783, -13.489493,-23.104783, -13.489493
 0,0,0,0,0,-23.104783, -13.489493,-23.104783, -13.489493
-0,0,0,0,0,-23.104783, -13.489493,-23.104783, -13.489493
\ No newline at end of file
+0,0,0,0,0,-23.104783, -13.489493,-23.104783, -13.489493
diff --git a/tests/gaze/io/files/monocular_example.csv b/tests/gaze/io/files/monocular_example.csv
index 87891121b..5493f10e4 100644
--- a/tests/gaze/io/files/monocular_example.csv
+++ b/tests/gaze/io/files/monocular_example.csv
@@ -8,4 +8,4 @@ time,x_left_pix,y_left_pix
 0,0,0
 0,0,0
 0,0,0
-0,0,0
\ No newline at end of file
+0,0,0