How to convert expression signature to be applicable with `It.IsAny` of `Moq`

Question

Following this answer I've tried to something similar and mock an interface of:

public interface IGetRepository<TEntity>
{
    IEnumerable<TEntity> Get(
        Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>> orderBy = null);
}

This is my unit test method:

IEnumerable<EventModel> expectedList = return new List<MyModel>() 
{
    new MyModel()
    {
        Id = 0
    }
}

using (var _mock = AutoMock.GetLoose())
{
    var repositoryMock = _mock.Mock<IGenericRepository<EventModel>>();
    repositoryMock
        .Setup(items => items.Get(It.IsAny<Expression<Func<EventModel, bool>>>))
        .Returns(() => expectedList);
}

But the It.IsAny<Expression<Func<EventModel, bool>>> create an error message of:

cannot convert from 'method group' to 'Expression>'

Already read these similar questions: 1,2,3 , so I guess the my issue is different signature, if so how do I convert this signature to be applicable with It.IsAny of moq?

Also your question states you want to use `It.Is` but your example uses `It.IsAny`. Which one are you trying to use? — E. Moffat, Jun 10 '19 at 18:40
Hey @Johnny , this is kind of awkward, but I was missing the parentheses, I was not familiar with this syntax. thanks! — Shahar Shokrani, Jun 10 '19 at 18:43

score 1 · Accepted Answer · answered Jun 10 '19 at 19:06

Please, try this

var expectedList = new List<EventModel>()
            {
                new EventModel()
                {
                    Id = 0
                }
            };

            {
                var repositoryMock = new Mock<IGetRepository<EventModel>>();
                repositoryMock
                    .Setup(items => items.Get(It.IsAny<Func<IQueryable<EventModel>, IOrderedQueryable<EventModel>>>()))
                    .Returns(() => expectedList);
            }

How to convert expression signature to be applicable with `It.IsAny` of `Moq`

1 Answers1