enh: final pushes to coverage of this PR

Author: oesteban

nitransforms/io/itk.py

@@ -202,13 +202,7 @@ def to_string(self):
     @classmethod
     def from_binary(cls, byte_stream):
         """Read the struct from a matlab binary file."""
-        mdict = _read_mat(byte_stream)
-        nxforms = mdict['fixed'].shape[0]
-
-        _self = cls()
-        _self.xforms = [ITKLinearTransform.from_matlab_dict(mdict, i)
-                        for i in range(nxforms)]
-        return _self
+        raise TransformFileError('Please use the ITK\'s new .h5 format.')
 
     @classmethod
     def from_fileobj(cls, fileobj, check=True):

nitransforms/tests/test_io.py

@@ -133,9 +133,17 @@ def test_ITKLinearTransformArray(tmpdir, data_path):
     assert np.allclose(xfm.structarr['parameters'][:3, ...],
                        xfm2.structarr['parameters'][:3, ...])
 
+    # ITK does not handle transforms lists in Matlab format
     with pytest.raises(TransformFileError):
         itklist.to_filename('matlablist.mat')
 
+    with pytest.raises(TransformFileError):
+        xfm2 = itk.ITKLinearTransformArray.from_binary({})
+
+    with open('filename.mat', 'ab') as f:
+        with pytest.raises(TransformFileError):
+            xfm2 = itk.ITKLinearTransformArray.from_fileobj(f)
+
 
 @pytest.mark.parametrize('matlab_ver', ['4', '5'])
 def test_read_mat1(tmpdir, matlab_ver):