System.Linq.Tests.WhereTests.Where_EmptyEnumerable_ReturnsNoElements C# (CSharp) Метод

        public void Where_EmptyEnumerable_ReturnsNoElements()
        {
            IEnumerable<int> source = Enumerable.Empty<int>();
            bool wasSelectorCalled = false;

            IEnumerable<int> result = source.Where(value => { wasSelectorCalled = true; return true; });
            
            Assert.Equal(0, result.Count());
            Assert.False(wasSelectorCalled);
        }