public async Task SetAsyncStorageItems_ReturnsValueFromAsyncTask()
{
DataPackage dataPackage = new DataPackage();
StorageFile file = await ApplicationData.Current.TemporaryFolder.CreateFileAsync("Test file.xml");
dataPackage.SetAsyncStorageItems(async (formatId, deadline) =>
{
await Task.Delay(200);
return new IStorageItem[] { file };
});
DataPackageView dataPackageView = dataPackage.GetView();
IReadOnlyList<IStorageItem> result = await dataPackageView.GetStorageItemsAsync();
Assert.AreEqual(1, result.Count);
Assert.AreEqual(file.Path, result[0].Path);
}