public void Remove_WritingsystemIdExists_FiresEventAndEventArgIsSetToIdOfDeletedWritingSystem() { RepositoryUnderTest.WritingSystemDeleted += OnWritingsystemDeleted; var ws = new WritingSystemDefinition("en"); RepositoryUnderTest.Set(ws); RepositoryUnderTest.Remove(ws.LanguageTag); Assert.That(_writingSystemDeletedEventArgs.Id, Is.EqualTo(ws.LanguageTag)); }