public async Task SequenceIds_are_generated_correctly()
{
// Test that SequenceIds are generate like the following: 0, 1, 2, 3, etc.
var ct = CancellationToken.None;
var ids = new List <int>();
var dataLoader = new DataLoader("sut", new DelegatedDataLoaderStrategy(Load), DataLoaderConcurrentMode.CancelPrevious, s => false);
await dataLoader.Load(ct);
Assert.Single(ids);
Assert.Equal(0, ids[0]);
await dataLoader.Load(ct);
Assert.Equal(2, ids.Count);
Assert.Equal(0, ids[0]);
Assert.Equal(1, ids[1]);
var trigger = new ManualDataLoaderTrigger();
dataLoader.AddTrigger(trigger);
trigger.Trigger();
Assert.Equal(3, ids.Count);
Assert.Equal(0, ids[0]);
Assert.Equal(1, ids[1]);
Assert.Equal(2, ids[2]);
Task <object> Load(CancellationToken ct, IDataLoaderRequest request)
{
ids.Add(request.SequenceId);
return(Task.FromResult <object>(null));
}
}