TST: fix tests

tacaswell · tacaswell · commit 5e84b4378c20 · 2022-01-28T18:31:54.000-05:00
diff --git a/mpl_gui/tests/conftest.py b/mpl_gui/tests/conftest.py
@@ -43,5 +43,9 @@ class TestingBackend(_Backend):
     FigureManager = TestManger
     Show = TestShow
 
+    @classmethod
+    def mainloop(cls):
+        ...
+
 
 mpl_gui.select_gui_toolkit(TestingBackend)
