TEST: Use get_fdata, check for expected warning

Author: effigies

nibabel/nicom/tests/test_dicomreaders.py

@@ -20,7 +20,7 @@
 @dicom_test
 def test_read_dwi():
     img = didr.mosaic_to_nii(DATA)
-    arr = img.get_data()
+    arr = img.get_fdata()
     assert arr.shape == (128, 128, 48)
     assert_array_almost_equal(img.affine, EXPECTED_AFFINE)
 

nibabel/nicom/tests/test_dicomwrappers.py

@@ -660,7 +660,8 @@ def test_data_derived_shape(self):
         # Test 4D diffusion data with an additional trace volume included
         # Excludes the trace volume and generates the correct shape
         dw = didw.wrapper_from_file(DATA_FILE_4D_DERIVED)
-        assert dw.image_shape == (96, 96, 60, 33)
+        with pytest.warns(UserWarning):
+            assert dw.image_shape == (96, 96, 60, 33)
 
     @dicom_test
     @needs_nibabel_data('nitest-dicom')