convert error to warning

rijobro · rijobro · commit bb2e1419eee2 · 2021-03-23T14:08:42.000Z
Signed-off-by: Richard Brown &lt;33289025+rijobro@users.noreply.github.com&gt;
diff --git a/monai/data/test_time_augmentation.py b/monai/data/test_time_augmentation.py
@@ -9,6 +9,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import warnings
 from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 import numpy as np
@@ -100,13 +101,13 @@ def _check_transforms(self):
         invertibles = np.array([isinstance(t, InvertibleTransform) for t in ts])
         # check at least 1 random
         if sum(randoms) == 0:
-            raise RuntimeError(
+            warnings.warn(
                 "Requires a `Randomizable` transform or a `Compose` containing at least one `Randomizable` transform."
             )
         # check that whenever randoms is True, invertibles is also true
         for r, i in zip(randoms, invertibles):
             if r and not i:
-                raise RuntimeError(
+                warnings.warn(
                     f"All applied random transform(s) must be invertible. Problematic transform: {type(r).__name__}"
                 )
 
