Fix

mmedit/datasets/pipelines/augmentation.py

@@ -53,7 +53,7 @@ class Resize:
         backend (str | None): The image resize backend type. Options are `cv2`,
             `pillow`, `None`. If backend is None, the global imread_backend
             specified by ``mmcv.use_backend()`` will be used.
-            Default: "pillow".
+            Default: "cv2".
         output_keys (list[str] | None): The resized images. Default: None
             Note that if it is not `None`, its length shuld be equal to keys.
     """
@@ -65,7 +65,7 @@ def __init__(self,
                  size_factor=None,
                  max_size=None,
                  interpolation='bilinear',
-                 backend=None,
+                 backend='cv2',
                  output_keys=None):
         assert keys, 'Keys should not be empty.'
         if output_keys:

tests/test_augmentation.py

@@ -474,7 +474,7 @@ def test_resize(self):
 
         name_ = str(resize_keep_ratio)
         assert name_ == resize_keep_ratio.__class__.__name__ + (
-            f"(keys={['gt_img']}, output_keys={['gt_img']}, "
+            "(keys=['gt_img'], output_keys=['gt_img'], "
             'scale=(128, 128), '
             f'keep_ratio={False}, size_factor=None, '
             'max_size=None,interpolation=bilinear)')
@@ -686,9 +686,3 @@ def mirror_sequence(self):
         with pytest.raises(TypeError):
             results = dict(lq=0, gt=gts)
             mirror_sequence(results)
-
-
-if __name__ == '__main__':
-    aug = TestAugmentations()
-    aug.setup_class()
-    aug.test_resize()