assertNotNull(Curl.options("http://cors.example.com/api"));
        assertNotNull(Curl.connect("http://proxy.example.com:3128"));
    }

    @Test
    public void test_HttpMethodEnumValues() {
        // ## Test that all expected HTTP methods are present in the enum ##

        // ## Act ##
        final Method[] methods = Method.values();

        // ## Assert ##