[U] public void EachViewSeesNextButSkipsTheDeadNode()
{
var seeds = Enumerable.Range(9200, NumberOfNodes).Select(p => new Node(new Uri("http://localhost:" + p))).ToList();
seeds.First().MarkDead(DateTime.Now.AddDays(1));
var pool = new StaticConnectionPool(seeds, randomize: false);
for (var i = 0; i < 20; i++)
{
var node = pool.CreateView().First();
node.Uri.Port.Should().Be(9201);
node = pool.CreateView().First();
node.Uri.Port.Should().Be(9202);
}
/** After we marked the first node alive again, we expect it to be hit again*/
seeds.First().MarkAlive();
for (var i = 0; i < 20; i++)
{
var node = pool.CreateView().First();
node.Uri.Port.Should().Be(9201);
node = pool.CreateView().First();
node.Uri.Port.Should().Be(9202);
node = pool.CreateView().First();
node.Uri.Port.Should().Be(9200);
}
}
[U] public void ViewSeesResurrectedNodes()
{
var dateTimeProvider = new TestableDateTimeProvider();
var seeds = Enumerable.Range(9200, NumberOfNodes).Select(p => new Node(new Uri("http://localhost:" + p))).ToList();
seeds.First().MarkDead(dateTimeProvider.Now().AddDays(1));
var pool = new StaticConnectionPool(seeds, randomize: false, dateTimeProvider: dateTimeProvider);
for (var i = 0; i < 20; i++)
{
var node = pool.CreateView().First();
node.Uri.Port.Should().Be(9201);
node = pool.CreateView().First();
node.Uri.Port.Should().Be(9202);
}
/** If we roll the clock forward two days, the node that was marked
* dead until tomorrow (or yesterday!) should be resurrected
*/
dateTimeProvider.ChangeTime(d => d.AddDays(2));
var n = pool.CreateView().First();
n.Uri.Port.Should().Be(9201);
n = pool.CreateView().First();
n.Uri.Port.Should().Be(9202);
n = pool.CreateView().First();
n.Uri.Port.Should().Be(9200);
n.IsResurrected.Should().BeTrue();
}
[U] public void EachViewSkipsAheadWithOne()
{
var seeds = Enumerable.Range(9200, NumberOfNodes).Select(p => new Node(new Uri("http://localhost:" + p))).ToList();
var pool = new StaticConnectionPool(seeds, randomize: false);
for (var i = 0; i < 20; i++)
{
var node = pool.CreateView().First();
node.Uri.Port.Should().Be(9200);
node = pool.CreateView().First();
node.Uri.Port.Should().Be(9201);
node = pool.CreateView().First();
node.Uri.Port.Should().Be(9202);
}
}
