1 files changed, 14 insertions, 0 deletions
diff --git a/src/sugar/tutorius/tests/coretests.py b/src/sugar/tutorius/tests/coretests.py
index af3f02c..a28880f 100644
--- a/src/sugar/tutorius/tests/coretests.py
+++ b/src/sugar/tutorius/tests/coretests.py
@@ -108,6 +108,20 @@ class FakeEventFilter(TriggerEventFilter):
     def _inner_cb(self, event_filter):
         self.toggle_on_callback = not self.toggle_on_callback
         self.tutorial.set_state(event_filter.get_next_state())
+class BaseActionTests(unittest.TestCase):
+    def test_do_unimplemented(self):
+        act = Action()
+        try:
+            act.do()
+            assert False, "do() should trigger a NotImplemented"
+        except NotImplementedError:
+            assert True, "do() should trigger a NotImplemented"
+
+    def test_undo(self):
+        act = Action()
+        act.undo()
+        assert True, "undo() should never fail on the base action"
+
 
 class OnceWrapperTests(unittest.TestCase):
     def test_onceaction_toggle(self):