System.Linq.Tests.FirstOrDefaultTests.ManyElementsPredicateFalseForAll C# (CSharp) Method

        public void ManyElementsPredicateFalseForAll()
        {
            int[] source = { 9, 5, 1, 3, 17, 21 };
            Assert.Equal(0, source.AsQueryable().FirstOrDefault(i => i % 2 == 0));
        }