public async Task DeleteConfirmed_ReturnsRedirectToActionResult_WhenTodoItemIsDeleted()
{
this._todoItemServiceMock
.Setup(service => service.DeleteTodoAsync(It.IsAny <Guid>(), It.IsAny <ApplicationUser>()))
.ReturnsAsync(true);
this._fileItemServiceMock
.Setup(service => service.DeleteFileAsync(It.IsAny <string>(), It.IsAny <string>()))
.ReturnsAsync(true);
var result = await _todosController.DeleteConfirmed(Guid.NewGuid(), "");
Assert.IsType <RedirectToActionResult>(result);
}