final CurlRequest request = Curl.trace(url);

        // ## Assert ##
        assertNotNull(request);
        assertEquals(Method.TRACE, request.method());
    }

    @Test
    public void test_TmpDirInitialization() {
        // ## Act ##
        final File tmpDir = Curl.tmpDir;

        // ## Assert ##
        assertNotNull(tmpDir);
        assertTrue(tmpDir.exists());
        assertTrue(tmpDir.isDirectory());