public void _Details_Returns_one_Todo()
{
var todo = todosList.First();
//specify the mockRepo return
_mockRepository.Setup(repo => repo.getTodoBy(It.IsAny <Func <ToDoItemModel, bool> >())).Returns(todo);
//instantiate the controller
var controller = new TodosController(_mockRepository.Object, _logger);
//Call the controller action
var result = controller._Details(todo.id);
//Assert the result
Assert.NotNull(result);
var partialViewResult = Assert.IsType <PartialViewResult>(result);
var model = partialViewResult.Model;
//Assert the model
model.Should().BeEquivalentTo(todo, options => options.ComparingByMembers <ToDoItemModel>());
}