assertNotNull(requestData);
        assertEquals("https://example.com/test", requestData.getUrl());
        assertEquals(Method.POST, requestData.getMethod());
    }

    public void test_closeWithNonTemporaryFile() throws IOException {
        // Test close with non-temporary file
        ResponseData data = new ResponseData();

        File tempFile = File.createTempFile("test_non_temp", ".txt");
        try {