BitSharp.Core.Test.Domain.ChainTest.TestNavigateTowardsEmpty C# (CSharp) Method

        public void TestNavigateTowardsEmpty()
        {
            // create chain
            var fakeHeaders = new FakeHeaders();
            var header0 = fakeHeaders.GenesisChained();
            var header1 = fakeHeaders.NextChained();
            var header2 = fakeHeaders.NextChained();

            var chainEmpty = new ChainBuilder().ToImmutable();
            var chain = new ChainBuilder(new[] { header0, header1, header2 }).ToImmutable();

            // verify chaining to empty does nothing
            Assert.AreEqual(0, chainEmpty.NavigateTowards(chainEmpty).Count());
            Assert.AreEqual(0, chain.NavigateTowards(chainEmpty).Count());

            // verify path from empty chain to chain
            CollectionAssert.AreEqual(
                new[]
                {
                    Tuple.Create(+1, header0),
                    Tuple.Create(+1, header1),
                    Tuple.Create(+1, header2)
                }
                , chainEmpty.NavigateTowards(chain).ToList());
        }