//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldHandleMultipleConcurrentStoreCopyRequests() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldHandleMultipleConcurrentStoreCopyRequests()
{
// GIVEN
Race race = new Race();
CountingAction action = new CountingAction();
int threads = Runtime.Runtime.availableProcessors() * 10;
race.AddContestants(threads, throwing(() =>
{
ParkARandomWhile();
using (Resource @lock = _mutex.storeCopy(action))
{
ParkARandomWhile();
}
}));
race.Go();
// THEN
// It's hard to make predictions about what should have been seen. Most importantly is that
// The lock doesn't hang any requests and that number of calls to the action less than number of threads
assertThat(action.Count(), lessThan(threads));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldPropagateStoreCopyActionFailureToOtherStoreCopyRequests() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldPropagateStoreCopyActionFailureToOtherStoreCopyRequests()
{
// GIVEN
Org.Neo4j.Test.Barrier_Control barrier = new Org.Neo4j.Test.Barrier_Control();
IOException controlledFailure = new IOException("My own fault");
AtomicReference <Future <object> > secondRequest = new AtomicReference <Future <object> >();
ThrowingAction <IOException> controllableAndFailingAction = () =>
{
// Now that we know we're first, start the second request...
secondRequest.set(T3.execute(state => _mutex.storeCopy(_assertNotCalled)));
// ...and wait for it to reach its destination
barrier.AwaitUninterruptibly();
try
{
// OK, second request has made progress into the request, so we can now produce our failure
throw controlledFailure;
}
finally
{
barrier.Release();
}
};
Future <object> firstRequest = T2.execute(state => _mutex.storeCopy(controllableAndFailingAction));
while (secondRequest.get() == null)
{
ParkARandomWhile();
}
T3.get().waitUntilWaiting(details => details.isAt(typeof(StoreCopyCheckPointMutex), "waitForFirstStoreCopyActionToComplete"));
// WHEN
barrier.Reached();
// THEN
try
{
firstRequest.get();
}
catch (ExecutionException e)
{
assertSame(controlledFailure, e.InnerException);
}
try
{
secondRequest.get().get();
}
catch (ExecutionException e)
{
Exception cooperativeActionFailure = e.InnerException;
assertThat(cooperativeActionFailure.Message, containsString("Co-operative"));
assertSame(controlledFailure, cooperativeActionFailure.InnerException);
}
// WHEN afterwards trying another store-copy
CountingAction action = new CountingAction();
using (Resource @lock = _mutex.storeCopy(action))
{
// THEN
assertEquals(1, action.Count());
}
}