assertFalse(cos.isInMemory());
        File file = cos.getFile();
        assertTrue(file.exists());
        cos.close();
    }

    @Test
    public void testGetDataInMemory() throws IOException {
        // getData() should return the written data when in memory
        ContentOutputStream cos = new ContentOutputStream(10, Curl.tmpDir);
        byte[] data = new byte[] { 0, 1, 2, 3, 4 };