public async Task TestGetDirectory()
        {
            CloudBlobContainer container = _blobClient.GetContainerReference("container");
            container.CreateIfNotExists();

            await CreateNonEmptyDirectory(container, "dir1");
            AzureBlobContainer azureBlobContainer = new AzureBlobContainer(container);
            
            Assert.AreEqual("dir1", (await azureBlobContainer.GetDirectory("dir1")).Name);
        }