'How to trigger server side event when testing event-stream using cherrypy.test?

When using cherrypy.test to test server sent event streams:

class Test_BasicPage(helper.CPWebCase):
        ....
        def test_eventSource(self):
               self.getPage("/updateSSE")
               self.assertBody() # Here I need a hook that can allow me to trigger the event on the server side

Is there a best practice when it comes to testing event-stream using helper.CPWebCase? Thanks.



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