Merge pull request #1879 from oesteban/fix/AntsJointFusion

[FIX] Doctest of antsJointFusion failing

Author: satra

nipype/interfaces/ants/segmentation.py

@@ -1130,28 +1130,29 @@ def _format_arg(self, opt, spec, val):
             if not isdefined(self.inputs.out_label_fusion):
                 retval = '-o {0}'.format(self.inputs.out_intensity_fusion_name_format)
         elif opt == 'atlas_image':
-            atlas_image_cmd=" ".join(
-                [ '-g [{0}]'.format(",".join(
-                    fn for fn in ai) ) for ai in self.inputs.atlas_image]
+            atlas_image_cmd = " ".join(
+                ['-g [{0}]'.format(", ".join("'%s'" % fn for fn in ai))
+                                   for ai in self.inputs.atlas_image]
             )
             retval = atlas_image_cmd
         elif opt == 'target_image':
-            target_image_cmd=" ".join(
-                [ '-t [{0}]'.format(",".join(
-                    fn for fn in ai) ) for ai in self.inputs.target_image]
+            target_image_cmd = " ".join(
+                ['-t [{0}]'.format(", ".join("'%s'" % fn for fn in ai))
+                                   for ai in self.inputs.target_image]
             )
             retval = target_image_cmd
         elif opt == 'atlas_segmentation_image':
             assert len(val) == len(self.inputs.atlas_image), "Number of specified " \
                 "segmentations should be identical to the number of atlas image " \
                 "sets {0}!={1}".format(len(val), len(self.inputs.atlas_image))
-            atlas_segmentation_image_cmd=" ".join(
-                [ '-t [{0}]'.format( fn ) for fn in self.inputs.atlas_segmentation_image ]
+
+            atlas_segmentation_image_cmd = " ".join(
+                ['-l {0}'.format(fn) for fn in self.inputs.atlas_segmentation_image]
             )
             retval = atlas_segmentation_image_cmd
         else:
 
-            return super(ANTSCommand, self)._format_arg(opt, spec, val)
+            return super(AntsJointFusion, self)._format_arg(opt, spec, val)
         return retval
 
     def _list_outputs(self):