def test_openSSL110(self):
        """
        No configuration of contexts occurs under OpenSSL 1.1.0 and
        later, because they create contexts with secure ECDH curves.

        @see: U{http://twistedmatrix.com/trac/ticket/9210}
        """
        chooser = sslverify._ChooseDiffieHellmanEllipticCurve(
            self.OPENSSL_110,
            openSSLlib=self.lib,
            openSSLcrypto=self.crypto,
        )
        chooser.configureECDHCurve(self.context)

        self.assertFalse(self.libState.ecdhContexts)
        self.assertFalse(self.libState.ecdhValues)
        self.assertFalse(self.cryptoState.getEllipticCurveCalls)
        self.assertIsNone(self.context._ecCurve)

        No configuration of contexts occurs under OpenSSL 1.1.0 and
        later, because they create contexts with secure ECDH curves.

        @see: U{http://twistedmatrix.com/trac/ticket/9210}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_sslverify.py