WIP: fix P2PDistance and add tests

Author: oesteban

nipype/algorithms/tests/test_auto_P2PDistance.py

@@ -6,6 +6,8 @@ def test_P2PDistance_inputs():
     input_map = dict(ignore_exception=dict(nohash=True,
     usedefault=True,
     ),
+    out_file=dict(usedefault=True,
+    ),
     surface1=dict(mandatory=True,
     ),
     surface2=dict(mandatory=True,
@@ -21,6 +23,7 @@ def test_P2PDistance_inputs():
 
 def test_P2PDistance_outputs():
     output_map = dict(distance=dict(),
+    out_file=dict(),
     )
     outputs = P2PDistance.output_spec()
 

nipype/algorithms/tests/test_mesh_ops.py

@@ -0,0 +1,34 @@
+# coding: utf-8
+# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: nil -*-
+# vi: set ft=python sts=4 ts=4 sw=4 et:
+
+import os
+from shutil import rmtree
+from tempfile import mkdtemp
+
+from nipype.testing import (assert_equal, assert_raises,
+                            assert_almost_equal, example_data)
+
+import numpy as np
+import nibabel as nb
+import nipype.testing as nit
+
+from nipype.algorithms import mesh as m
+
+
+def test_distances():
+    tempdir = mkdtemp()
+    in_surf = example_data('surf01.vtk')
+
+    dist_ident = m.P2PDistance()
+    dist_ident.inputs.surface1 = in_surf
+    dist_ident.inputs.surface2 = in_surf
+    dist_ident.inputs.out_file = os.path.join(tmpdir, 'distance.npy')
+    res = dist_ident.run()
+    yield assert_equal, res.outputs.distance, 0.0
+
+    dist_ident.inputs.weighting = 'area'
+    res = dist_ident.run()
+    yield assert_equal, res.outputs.distance, 0.0
+
+    rmtree(tempdir)