fixup! Add FlapStates._clear_flap_internal()

tests/flaps_test.py

@@ -179,18 +179,19 @@ def test_when_event_does_not_exist_it_should_do_nothing(
 
         assert not state.events.get("localhost", port.ifindex, PortStateEvent)
 
-    def test_when_port_does_not_exist_it_should_do_nothing(
-        self,
-        state_with_flapstats,
-    ):
-        state = state_with_flapstats
-        fake_ifindex = 9999
+    def test_when_event_but_not_port_exists_it_should_do_nothing(self, state_with_flapstats_and_portstate_event):
+        state = state_with_flapstats_and_portstate_event
+        port: Port = next(iter(state.devices.devices["localhost"].ports.values()))
+        # Remove the port from device state for this test
+        del state.devices.devices["localhost"].ports[port.ifindex]
 
         state.flapping._clear_flap_internal(
-            ("localhost", fake_ifindex), "nobody", "Flapstate manually cleared", state=state
+            ("localhost", port.ifindex), "nobody", "Flapstate manually cleared", state=state
         )
 
-        assert not state.events.get("localhost", fake_ifindex, PortStateEvent)
+        event = state.events.get("localhost", port.ifindex, PortStateEvent)
+        assert event
+        assert event.flapstate == FlapState.FLAPPING  # still flapping!
 
 
 class TestFlappingStatesClearFlap: