System.Linq.Tests.SelectTests.Select_SourceIsIList_Take C# (CSharp) Method

        public void Select_SourceIsIList_Take()
        {
            var source = new List<int> { 1, 2, 3, 4 }.AsReadOnly().Select(i => i * 2);
            Assert.Equal(new[] { 2, 4 }, source.Take(2));
            Assert.Equal(new[] { 2, 4 }, source.Take(3).Take(2));
            Assert.Empty(source.Take(-1));
            Assert.Equal(new[] { 2, 4, 6, 8 }, source.Take(4));
            Assert.Equal(new[] { 2, 4, 6, 8 }, source.Take(40));
            Assert.Equal(new[] { 2 }, source.Take(1));
            Assert.Equal(new[] { 4 }, source.Skip(1).Take(1));
            Assert.Equal(new[] { 6 }, source.Take(3).Skip(2));
            Assert.Equal(new[] { 2 }, source.Take(3).Take(1));
        }