use properly converted path as basedir

Author: wtriplettuf

nipype/pipeline/engine/tests/test_engine.py

@@ -645,7 +645,7 @@ def test_parameterize_dirs_false(tmpdir):
     n2 = pe.Node(IdentityInterface(fields='in1'), name="Node2")
 
     wf = pe.Workflow(name="Test")
-    wf.base_dir = tmpdir
+    wf.base_dir = wd
     wf.connect([(n1, n2, [('output1', 'in1')])])
 
     error_raised = False