Fix lazy ignored in SpatialPadd (#7316)

Fixes #7314 #7315.


### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [ ] Breaking change (fix or new feature that would cause existing
functionality to change).
- [ ] New tests added to cover the changes.
- [ ] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [ ] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [ ] In-line docstrings updated.
- [ ] Documentation updated, tested `make html` command in the `docs/`
folder.

---------

Signed-off-by: YunLiu <[email protected]>
Co-authored-by: Ben Murray <[email protected]>

Author: KumoLiu

monai/transforms/croppad/dictionary.py

@@ -221,9 +221,8 @@ def __init__(
                 note that `np.pad` treats channel dimension as the first dimension.
 
         """
-        LazyTransform.__init__(self, lazy)
         padder = SpatialPad(spatial_size, method, lazy=lazy, **kwargs)
-        Padd.__init__(self, keys, padder=padder, mode=mode, allow_missing_keys=allow_missing_keys)
+        Padd.__init__(self, keys, padder=padder, mode=mode, allow_missing_keys=allow_missing_keys, lazy=lazy)
 
 
 class BorderPadd(Padd):
@@ -274,9 +273,8 @@ def __init__(
                 note that `np.pad` treats channel dimension as the first dimension.
 
         """
-        LazyTransform.__init__(self, lazy)
         padder = BorderPad(spatial_border=spatial_border, lazy=lazy, **kwargs)
-        Padd.__init__(self, keys, padder=padder, mode=mode, allow_missing_keys=allow_missing_keys)
+        Padd.__init__(self, keys, padder=padder, mode=mode, allow_missing_keys=allow_missing_keys, lazy=lazy)
 
 
 class DivisiblePadd(Padd):
@@ -324,9 +322,8 @@ def __init__(
         See also :py:class:`monai.transforms.SpatialPad`
 
         """
-        LazyTransform.__init__(self, lazy)
         padder = DivisiblePad(k=k, method=method, lazy=lazy, **kwargs)
-        Padd.__init__(self, keys, padder=padder, mode=mode, allow_missing_keys=allow_missing_keys)
+        Padd.__init__(self, keys, padder=padder, mode=mode, allow_missing_keys=allow_missing_keys, lazy=lazy)
 
 
 class Cropd(MapTransform, InvertibleTransform, LazyTransform):

tests/padders.py

@@ -136,6 +136,9 @@ def pad_test_pending_ops(self, input_param, input_shape):
             # TODO: mode="bilinear" may report error
             overrides = {"mode": "nearest", "padding_mode": mode[1], "align_corners": False}
             result = apply_pending(pending_result, overrides=overrides)[0]
+            # lazy in constructor
+            pad_fn_lazy = self.Padder(mode=mode[0], lazy=True, **input_param)
+            self.assertTrue(pad_fn_lazy.lazy)
             # compare
             assert_allclose(result, expected, rtol=1e-5)
             if isinstance(result, MetaTensor) and not isinstance(pad_fn, MapTransform):