public async Task Delete_Removes_TodoItem()
{
var dbContext = new Mock <TodoAppContext>();
ITodoItemProvider provider = new TodoItemProvider(dbContext.Object);
var items = new List <TodoItemDAO>()
{
new TodoItemDAO()
{
Id = 1, Name = "TestItem1"
},
new TodoItemDAO()
{
Id = 2, Name = "TestItem2"
},
new TodoItemDAO()
{
Id = 3, Name = "TestItem3"
}
};
dbContext
.Setup(m => m.TodoItems.Remove(It.IsAny <TodoItemDAO>()))
.Callback <TodoItemDAO>((entity) => items.Remove(entity));
int idToDelete = 1;
dbContext
.Setup(s => s.TodoItems.Find(idToDelete))
.Returns(items.Single(s => s.Id == idToDelete));
await provider.Delete(idToDelete);
Assert.Equal(2, items.Count());
dbContext.Verify(s => s.TodoItems.Find(idToDelete), Times.Once);
dbContext.Verify(s => s.TodoItems.Remove(It.IsAny <TodoItemDAO>()), Times.Once);
dbContext.Verify(s => s.SaveChangesAsync(new CancellationToken()), Times.Once);
}
