public void SuppressChangeNotificationsShouldThrowObjectDisposedExceptionAfterDictionaryDisposal()
{
// given
var observableDictionary = new ObservableDictionary<int, string>();
observableDictionary.Dispose();
// when
Action action = () => { var suppression = observableDictionary.SuppressChangeNotifications(); };
action
.ShouldThrow<ObjectDisposedException>()
.WithMessage($"Cannot access a disposed object.\r\nObject name: '{observableDictionary.GetType().Name}'.");
}
public void IsTrackingChangesReturnsCorrectValue()
{
// given
using (var observableDictionary = new ObservableDictionary<int, string>())
{
// when
using (observableDictionary.SuppressChangeNotifications())
{
observableDictionary.IsTrackingChanges.Should().BeFalse();
}
observableDictionary.IsTrackingChanges.Should().BeTrue();
}
}
public void SuppressChangeNotificationsPreventsMultipleSuppressions()
{
// given
using (var observableDictionary = new ObservableDictionary<int, string>())
{
// when
using (observableDictionary.SuppressChangeNotifications())
{
Action action = () => { var secondSuppression = observableDictionary.SuppressChangeNotifications(); };
action
.ShouldThrow<InvalidOperationException>()
.WithMessage("A Change Notification Suppression is currently already ongoing, multiple concurrent suppressions are not supported.");
}
}
}