public WebAssetHttpHandlerTests()
        {
            _registry = new Mock<IWebAssetRegistry>();
            _compressor = new Mock<IHttpResponseCompressor>();
            _cacher = new Mock<IHttpResponseCacher>();

            _handler = new WebAssetHttpHandler(_registry.Object, _compressor.Object, _cacher.Object);
        }
        public WebAssetHttpHandlerTests()
        {
            reader     = new Mock <IWebAssetGroupReader>();
            compressor = new Mock <IHttpResponseCompressor>();
            cacher     = new Mock <IHttpResponseCacher>();

            _handler = new WebAssetHttpHandler(reader.Object, compressor.Object, cacher.Object);
        }