public void Feature_observable_returns_feature_from_object_ctor() { var feature = new Feature<string>((object) "hello"); feature.Subscribe(v => { }); Assert.That(feature.First(), Is.EqualTo("hello")); }
public void After_it_is_subscribed_a_Feature_is_available_if_an_initialization_function_is_supplied() { var feature = new Feature<string>(() => "hello"); feature.Subscribe(f => { }); Assert.That(feature.Availability.First(), Is.True); }
public void Feature_observable_returns_feature_from_object_ctor_when_passed_a_delegate() { Func<object> getter = () => "hello"; var feature = new Feature<string>(getter); feature.Subscribe(v => { }); Assert.That(feature.First(), Is.EqualTo("hello")); }
public void A_feature_can_be_subscribed_before_it_is_registered_and_when_it_is_later_initialized_subscribers_will_be_notified() { string result = null; var feature = new Feature<string>(); feature.Subscribe(s => result = s); Assert.That(result, Is.Null); feature.OnNext("hello"); Assert.That(result, Is.EqualTo("hello")); }
public void When_a_feature_fails_to_load_the_error_is_published_to_OnError_and_not_thrown() { var feature = new Feature<string>(() => { throw new ArgumentException("oops!"); }); Exception error = null; string result = null; feature.Subscribe(f => result = f, ex => error = ex); Assert.That(result, Is.Null); Assert.That(error, Is.InstanceOf<ArgumentException>()); }
public void A_Feature_whose_instance_is_an_IFeature_produces_a_value_when_the_IFeature_is_available() { var inner = new Feature<string>(); var outer = new Feature<Feature<string>>(inner); Feature<string> result = null; outer.Subscribe(v => result = v); inner.OnNext("hello"); Assert.That(outer.Availability.First(), Is.EqualTo(true)); Assert.That(outer.First().First(), Is.EqualTo("hello")); }