ALinq.Tests.AsyncEnumerableConcatTests.ConcatShouldAppendSequences C# (CSharp) Метод

        public async Task ConcatShouldAppendSequences()
        {
            var sequence1 = AsyncEnumerable.Range(0, 9);
            var sequence2 = AsyncEnumerable.Range(9, 11);

            var sequence3 = sequence1.Concat(sequence2);
            var result = await sequence3.ToList();

            CollectionAssert.AreEqual((ICollection)Enumerable.Range(0,20).ToList(),(ICollection)result);
        }
    }