assertEquals(1024 * 1024, request.threshold());
        assertNull(request.proxy());
        assertNull(request.body());
    }

    @Test
    public void testConstructorWithNullMethod() {
        String url = "https://example.com";

        try {
            new CurlRequest(null, url);
            fail("Expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {