public void add_Creates_one_Todo_And_Returns_1()
{
var todo = todosList.First();
//specify the mockContext return
_mockContext.Setup(context => context.create(todo)).Returns(1);
//instantiate the repository
var todosRepository = new TodosRepository(_mockContext.Object, _logger);
//Call the repository method
var result = todosRepository.add(todo);
//Assert the result
var returnedValue = Assert.IsType <int>(result);
Assert.Equal(1, returnedValue);
}