// ## Act ##
        byte[] result = cache.getContentAsBytes();

        // ## Assert ##
        assertEquals(content, new String(result, "UTF-8"));
    }

    @Test
    public void testGetContentAsBytes_EmptyData() throws IOException {
        // ## Arrange ##
        ContentCache cache = new ContentCache(new byte[0]);

        // ## Act ##
        byte[] result = cache.getContentAsBytes();