// Setting proxy to null should work
        request.proxy(null);

        assertNull(request.proxy());
    }

    @Test
    public void testMultipleEncodingCallsBeforeParam() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        // Multiple encoding calls should work as long as no params are added yet
        request.encoding("UTF-8");