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

        public void TestNavigateTowards()
        {
            // create forked chains
            var fakeHeadersA = new FakeHeaders();
            var header0 = fakeHeadersA.GenesisChained();
            var header1 = fakeHeadersA.NextChained();

            var fakeHeadersB = new FakeHeaders(fakeHeadersA);
            var header2A = fakeHeadersA.NextChained();
            var header3A = fakeHeadersA.NextChained();
            var header4A = fakeHeadersA.NextChained();
            var header2B = fakeHeadersB.NextChained();
            var header3B = fakeHeadersB.NextChained();
            var header4B = fakeHeadersB.NextChained();

            var chain0 = new ChainBuilder(new[] { header0, header1, header2A, header3A }).ToImmutable();
            var chain1 = new ChainBuilder(new[] { header0, header1, header2B, header3B, header4B }).ToImmutable();

            // verify path from chain 0 to chain 1
            CollectionAssert.AreEqual(
                new[]
                {
                    Tuple.Create(-1, header3A),
                    Tuple.Create(-1, header2A),
                    Tuple.Create(+1, header2B),
                    Tuple.Create(+1, header3B),
                    Tuple.Create(+1, header4B)
                }
                , chain0.NavigateTowards(chain1).ToList());

            // verify path from chain 1 to chain 0
            CollectionAssert.AreEqual(
                new[]
                {
                    Tuple.Create(-1, header4B),
                    Tuple.Create(-1, header3B),
                    Tuple.Create(-1, header2B),
                    Tuple.Create(+1, header2A),
                    Tuple.Create(+1, header3A)
                }
                , chain1.NavigateTowards(chain0).ToList());
        }