public void ExpressionTreeQueryTest() { //arrange var target = new ExpressionTree(); IQueryable <Products> expected1; IQueryable <Products> expected2; IQueryable <Products> actual; //act target.ExpressionTreeQuery( out expected1, out expected2, out actual); //assert expected1.ToList().ToExpectedObject().ShouldEqual(actual.ToList()); expected2.ToList().ToExpectedObject().ShouldEqual(actual.ToList()); }