public async Task GetReadOnlySasUriAsync()
        {
            string id = "test/single.txt";
            await _native.WriteTextAsync(id, "test");

            string uri = await _native.GetReadOnlySasUriAsync(id);

            string content = await new WebClient().DownloadStringTaskAsync(new Uri(uri));

            Assert.Equal("test", content);
        }