System.Linq.Tests.LongCountTests.NullPredicateUsed C# (CSharp) Метод

        public void NullPredicateUsed()
        {
            Expression<Func<int, bool>> predicate = null;
            Assert.Throws<ArgumentNullException>("predicate", () => Enumerable.Range(0, 3).AsQueryable().LongCount(predicate));
        }