TEST: Update test DICOM file location

Author: effigies

nibabel/nicom/tests/test_dicomwrappers.py

@@ -21,6 +21,7 @@
                         assert_not_equal, assert_raises)
 
 from numpy.testing import assert_array_equal, assert_array_almost_equal
+from ...tests.nibabel_data import get_nibabel_data, needs_nibabel_data
 
 IO_DATA_PATH = pjoin(dirname(__file__), 'data')
 DATA_FILE = pjoin(IO_DATA_PATH, 'siemens_dwi_1000.dcm.gz')
@@ -36,7 +37,8 @@
 DATA_FILE_DEC_RSCL = pjoin(IO_DATA_PATH, 'decimal_rescale.dcm')
 DATA_FILE_4D = pjoin(IO_DATA_PATH, '4d_multiframe_test.dcm')
 DATA_FILE_EMPTY_ST = pjoin(IO_DATA_PATH, 'slicethickness_empty_string.dcm')
-DATA_FILE_4D_DERIVED = pjoin(IO_DATA_PATH, '4d_multiframe_with_derived.dcm')
+DATA_FILE_4D_DERIVED = pjoin(get_nibabel_data(), 'nitest-dicom',
+                             '4d_multiframe_with_derived.dcm')
 
 # This affine from our converted image was shown to match our image spatially
 # with an image from SPM DICOM conversion. We checked the matching with SPM
@@ -624,6 +626,7 @@ def test_slicethickness_fallback(self):
         assert_equal(dw.voxel_sizes[2], 1.0)
 
     @dicom_test
+    @needs_nibabel_data('nitest-dicom')
     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