Add test for SelectFiles field parsing

Author: mwaskom

nipype/interfaces/tests/test_io.py

@@ -11,6 +11,7 @@
 import os.path as op
 from subprocess import Popen
 import hashlib
+from collections import namedtuple
 
 import pytest
 import nipype
@@ -62,6 +63,7 @@ def test_s3datagrabber():
 templates1 = {"model": "interfaces/{package}/model.py",
              "preprocess": "interfaces/{package}/pre*.py"}
 templates2 = {"converter": "interfaces/dcm{to!s}nii.py"}
+templates3 = {"model": "interfaces/{package.name}/model.py"}
 
 @pytest.mark.parametrize("SF_args, inputs_att, expected", [
         ({"templates":templates1}, {"package":"fsl"},
@@ -75,6 +77,11 @@ def test_s3datagrabber():
 
         ({"templates":templates2}, {"to":2},
          {"infields":["to"], "outfields":["converter"], "run_output":{"converter":op.join(op.dirname(nipype.__file__), "interfaces/dcm2nii.py")}, "node_output":["converter"]}),
+
+        ({"templates": templates3}, {"package": namedtuple("package", ["name"])("fsl")},
+        {"infields": ["package"], "outfields": ["model"],
+         "run_output": {"model": op.join(op.dirname(nipype.__file__), "interfaces/fsl/model.py")},
+         "node_output": ["model"]}),
         ])
 def test_selectfiles(SF_args, inputs_att, expected):
     base_dir = op.dirname(nipype.__file__)