test_web.py 文件源码

def test_processingFailedDisplayTraceback(self):
        """
        L{Request.processingFailed} when the site has C{displayTracebacks} set
        to C{True} writes out the failure.
        """
        d = DummyChannel()
        request = server.Request(d, 1)
        request.site = server.Site(resource.Resource())
        request.site.displayTracebacks = True
        fail = failure.Failure(Exception("Oh no!"))
        request.processingFailed(fail)

        self.assertIn(b"Oh no!", request.transport.written.getvalue())

        # Since we didn't "handle" the exception, flush it to prevent a test
        # failure
        self.assertEqual(1, len(self.flushLoggedErrors()))