Fixed text_vcs_interact_no_plot to work with new interact/open logic

Author: Sam Fries

testing/vcs/test_vcs_interact_no_plot.py

@@ -1,6 +1,21 @@
-
 import vcs
-x=vcs.init()
+import sys
+
+x = vcs.init()
 x.drawlogooff()
 x.open()
+
+inter = x.backend.renWin.GetInteractor()
+
+
+def end_interact(obj, event):
+    print "Interaction began"
+    inter.TerminateApp()
+    sys.exit(0)
+
+inter.AddObserver("StartEvent", end_interact)
 x.interact()
+
+# Should not reach this point
+print "Did not start interact."
+sys.exit(1)