public static void SuspendResume()
{
var feature = new EventQueueFeature();
// initially enabled
Assert.True(feature.IsEnabled);
Assert.False(feature.IsSuspended);
// resuming when already enabled, does nothing
feature.Resume();
feature.Resume();
Assert.True(feature.IsEnabled);
Assert.False(feature.IsSuspended);
// initial suspension
feature.Suspend();
Assert.False(feature.IsEnabled);
Assert.True(feature.IsSuspended);
// subsequent suspension
feature.Suspend();
Assert.False(feature.IsEnabled);
Assert.True(feature.IsSuspended);
// resumption
feature.Resume();
Assert.False(feature.IsEnabled);
Assert.True(feature.IsSuspended);
feature.Resume();
Assert.True(feature.IsEnabled);
Assert.False(feature.IsSuspended);
}
public static void Callbacks()
{
int counter = 0;
var feature = new EventQueueFeature(
onSuspended: () => ++ counter,
onResumed: () => -- counter);
Assert.AreEqual(0, counter);
feature.Suspend(); // suspends
Assert.AreEqual(1, counter);
feature.Suspend();
Assert.AreEqual(1, counter);
feature.Resume();
Assert.AreEqual(1, counter);
feature.Resume(); // resumes
Assert.AreEqual(0, counter);
}
