@Test
    public void testContentCache() {
        CurlResponse response = new CurlResponse();
        byte[] data = "test content".getBytes();
        ContentCache cache = new ContentCache(data);

        response.setContentCache(cache);

        // ContentCache is not directly accessible, but we can test through content methods
        assertNotNull(response);
    }

    @Test

    @Test
    public void testMemoryBasedCacheConstructor() {
        byte[] data = "Hello, World!".getBytes();
        ContentCache cache = new ContentCache(data);

        assertNotNull(cache);
    }

    @Test
    public void testMemoryBasedCacheConstructorWithNull() {
        try {
            new ContentCache((byte[]) null);
            fail("Expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {

                }
                dfos.flush();
                final ContentCache contentCache;
                logger.fine(() -> "Response in " + (dfos.isInMemory() ? "Memory" : "File"));
                if (dfos.isInMemory()) {
                    contentCache = new ContentCache(dfos.getData());
                } else {
                    contentCache = new ContentCache(dfos.getFile());
                }