private int MaintenanceTest(double taskDelayMinutes, int sleep)
{
// activate the service if needed
var running = SnMaintenance.Running();
var maintenanceService = new SnMaintenance();
if (!running)
{
maintenanceService.Start();
}
// activate the test task
TestMaintenanceTask.Enabled = false;
TestMaintenanceTask.Calls = 0;
TestMaintenanceTask.WaitingMinutesForTests = taskDelayMinutes;
TestMaintenanceTask.Enabled = true;
Thread.Sleep(sleep);
TestMaintenanceTask.Enabled = false;
if (!running)
{
maintenanceService.Shutdown();
}
return(TestMaintenanceTask.Calls);
}
public void Maintenance_Cancellation()
{
Test(() =>
{
var hackedDataProvider = new HackedInMemoryBlobStorageMetaDataProvider();
BlobStorageComponents.DataProvider = hackedDataProvider;
var running = SnMaintenance.Running();
var maintenanceService = new SnMaintenance();
if (!running)
{
maintenanceService.Start();
}
try
{
// Start the real maintenance immediatelly on a hacked system
System.Threading.Tasks.Task.Run(() => SnMaintenanceAcc.InvokeStatic("CleanupFiles"));
// Let it work hard
Thread.Sleep(1000);
// Simulate system's cooldown
maintenanceService.Shutdown();
// Get count of deletions
var count1 = hackedDataProvider.CountOfCleanupCalled;
// Wait for a while and get the count again
Thread.Sleep(1000);
var count2 = hackedDataProvider.CountOfCleanupCalled;
// Repeat again
Thread.Sleep(1000);
var count3 = hackedDataProvider.CountOfCleanupCalled;
// Maybe a deletion cycle ran at the moment of shutdown
Assert.IsTrue(count2 - count1 < 2);
// The system certainly stopped at the second time.
Assert.AreEqual(count2, count3);
}
finally
{
TestMaintenanceTask.Enabled = false;
if (!running)
{
maintenanceService.Shutdown();
}
}
});
}