public GrainTests(ClusterFixture fixture)
{
// extract the TestCluster instance here and save it...
_cluster = fixture?.Cluster ?? throw new ArgumentNullException(nameof(fixture));
// create a single grain to test if you want here, or alternately create a grain in the test itself
_calculatorGrain = _cluster.GrainFactory.GetGrain <ICalculatorGrain>(Guid.NewGuid());
}
private static async Task StaySubscribed(ICalculatorGrain grain, ICalculatorObserver observer, CancellationToken token)
{
while (!token.IsCancellationRequested)
{
try
{
await Task.Delay(TimeSpan.FromSeconds(5), token);
await grain.Subscribe(observer);
}
catch (Exception exception)
{
Console.WriteLine($"Exception while trying to subscribe for updates: {exception}");
}
}
}
