public void LockTimeoutTest()
{
// Total of 1000ms delay
_storageCreationPropertiesBuilder.CustomizeLockRetry(20, 100);
var properties = _storageCreationPropertiesBuilder.Build();
var cache1 = new MockTokenCache();
var helper1 = new MsalCacheHelper(
cache1,
new MsalCacheStorage(properties, _logger),
_logger);
var cache2 = new MockTokenCache();
var helper2 = new MsalCacheHelper(
cache2,
new MsalCacheStorage(properties, _logger),
_logger);
//Test signalling thread 1
var resetEvent1 = new ManualResetEventSlim(initialState: false);
//Test signalling thread 2
var resetEvent2 = new ManualResetEventSlim(initialState: false);
//Thread 1 signalling test
var resetEvent3 = new ManualResetEventSlim(initialState: false);
// Thread 2 signalling test
var resetEvent4 = new ManualResetEventSlim(initialState: false);
var thread1 = new Thread(() =>
{
var args = new TokenCacheNotificationArgs(cache1, string.Empty, null, false);
helper1.BeforeAccessNotification(args);
// Indicate we are waiting
resetEvent2.Set();
resetEvent1.Wait();
helper1.AfterAccessNotification(args);
// Let thread 1 exit
resetEvent3.Set();
});
Stopwatch getTime = new Stopwatch();
var thread2 = new Thread(() =>
{
var args = new TokenCacheNotificationArgs(cache2, string.Empty, null, false);
getTime.Start();
try
{
helper2.BeforeAccessNotification(args);
}
catch (InvalidOperationException)
{
// Invalid operation is the exception thrown if the lock cannot be acquired
getTime.Stop();
}
resetEvent1.Set();
});
// Let thread 1 start and get the lock
thread1.Start();
// Wait for thread one to get into the lock
resetEvent2.Wait();
// Start thread 2 and give it enough time to get blocked on the lock
thread2.Start();
// Wait for the seconf thread to finish
resetEvent1.Wait();
Assert.IsTrue(getTime.ElapsedMilliseconds > 2000);
}
