@Test
    public void shouldContainInitialHeaders() {
        AbstractConnectorConfig connector = new AbstractConnectorConfig(REQUEST, RESPONSE) {};
        Assert.assertTrue(connector.getSuppressedResponseHeaders().containsAll(RESPONSE));
    }
@author Marc Savy {@literal <marc@rhymewithgravy.com>}
gateway/engine/core/src/test/java/io/apiman/gateway/engine/impl/AbstractConnectorConfigTest.java