public async Task Concurrent_Appends_In_Different_Aggregates_Should_Succeed_Without_Concurrency_Conflicts()
{
const int numTasks = 10;
int executionDurationInSeconds = 60;
List <ConcurrentTestContext> testContexts = new List <ConcurrentTestContext>();
var tasks = Enumerable.Range(0, numTasks)
.Select(i =>
{
ConcurrentTestContext testContext =
new ConcurrentTestContext(_testData, _store);
testContexts.Add(testContext);
return(testContext.Run());
}).ToArray();
await Task.Delay(executionDurationInSeconds * 1000);
foreach (var tctx in testContexts)
{
tctx.Stop();
}
Task.WaitAll(tasks);
foreach (var tctx in testContexts)
{
Assert.AreEqual(0, tctx.ConcurrentErrorsDetected);
var aggregate = await GetAggregate(tctx.AggregateId);
Assert.AreEqual(tctx.AggregateVersion, aggregate.aggregate_event_seq);
var createdEvents = await GetEvents(tctx.AggregateId);
Assert.AreEqual(
tctx.AggregateVersion,
createdEvents.Count());
}
string message =
@"Num of concurrent aggregates: {0}
Total Succeeded Appends: {1}";
Assert.Pass(message,
testContexts.Count,
testContexts.Select(c => c.SucceededApends).Sum());
}
public async Task Concurrent_Appends_In_Same_Aggregate_Should_Succeed_And_Detect_Concurrency_Conflicts()
{
int numTasks = 10;
int executionDurationInSeconds = 60;
ConcurrentTestContext testContext = new ConcurrentTestContext(_testData, _store);
var tasks = Enumerable.Range(0, numTasks)
.Select(i => testContext.Run())
.ToArray();
await Task.Delay(executionDurationInSeconds * 1000);
testContext.Stop();
Task.WaitAll(tasks);
var aggregate = await GetAggregate(testContext.AggregateId);
Assert.AreEqual(testContext.AggregateVersion, aggregate.aggregate_event_seq);
var createdEvents = await GetEvents(testContext.AggregateId);
Assert.AreEqual(
testContext.AggregateVersion,
createdEvents.Count());
string message =
@"Aggregate Version: {0}
Succeeded Appends: {1}
Concurrency Errors Detected: {2}";
Assert.Pass(message,
testContext.AggregateVersion,
testContext.SucceededApends,
testContext.ConcurrentErrorsDetected);
}