public async Task AddItemAsync_validText_returnsNewItemWithIdAndCorrectProperties()
{
var id = Guid.NewGuid();
var text = "text of new item";
var expectedItem = new Item
{
Id = id,
Text = text,
};
Item storedItem = null;
_identifierService.GenerateIdAsync().Returns(id);
_itemsRepository.AddAsync(Arg.Do <Item>(item => { storedItem = item; })).Returns(Task.CompletedTask);
var newItem = await _itemsService.AddItemAsync(expectedItem);
Assert.That(storedItem, Is.EqualTo(expectedItem).UsingItemComparer());
Assert.That(newItem, Is.EqualTo(expectedItem).UsingItemComparer());
}
