public async Task Map_MetadataLookup_ReturnsLookupItems() {
var mappingService = new TopicMappingService(_topicRepository, new FakeViewModelLookupService());
var topic = TopicFactory.Create("Test", "MetadataLookup");
var target = (MetadataLookupTopicViewModel?)await mappingService.MapAsync(topic).ConfigureAwait(false);
Assert.AreEqual<int>(5, target.Categories.Count);
}
public async Task Map_TopicReferences_ReturnsMappedModel() {
var mappingService = new TopicMappingService(_topicRepository, new FakeViewModelLookupService());
var topicReference = _topicRepository.Load(11111);
var topic = TopicFactory.Create("Test", "TopicReference");
topic.Attributes.SetInteger("TopicReferenceId", topicReference.Id);
var target = (TopicReferenceTopicViewModel?)await mappingService.MapAsync(topic).ConfigureAwait(false);
Assert.IsNotNull(target.TopicReference);
Assert.AreEqual<string>(topicReference.Key, target.TopicReference.Key);
}
/*==========================================================================================================================
| METHOD: INVOKE (ASYNC)
\-------------------------------------------------------------------------------------------------------------------------*/
/// <summary>
/// Provides the pagel-level navigation menu for the current page, which exposes one tier of navigation from the nearest
/// page group.
/// </summary>
public async Task<IViewComponentResult> InvokeAsync(bool moveNext) {
/*------------------------------------------------------------------------------------------------------------------------
| Identify adjacent topic
\-----------------------------------------------------------------------------------------------------------------------*/
var adjacentTopic = GetAdjacentTopic(CurrentTopic.Parent, CurrentTopic, moveNext);
var label = moveNext? "Next Lesson" : "Previous Lesson";
/*------------------------------------------------------------------------------------------------------------------------
| Fallback to adjacent unit
\-----------------------------------------------------------------------------------------------------------------------*/
if (adjacentTopic is null) {
var adjacentUnit = GetAdjacentTopic(CurrentTopic.Parent.Parent, CurrentTopic.Parent, moveNext);
if (adjacentUnit is not null) {
adjacentTopic = moveNext? adjacentUnit.Children.FirstOrDefault() : adjacentUnit.Children.LastOrDefault();
label = moveNext? "Next Unit" : "Previous Unit";
}
}
/*------------------------------------------------------------------------------------------------------------------------
| Fallback to course
\-----------------------------------------------------------------------------------------------------------------------*/
if (adjacentTopic is null) {
adjacentTopic = CurrentTopic.Parent.Parent;
label = moveNext? "Finish Course" : "Return to Syllabus";
}
/*------------------------------------------------------------------------------------------------------------------------
| Map adjacent topic
\-----------------------------------------------------------------------------------------------------------------------*/
var topicViewModel = new LessonPagingTopicViewModel {
Label = label,
MoveNext = moveNext
};
topicViewModel = (LessonPagingTopicViewModel)await TopicMappingService.MapAsync(adjacentTopic, topicViewModel).ConfigureAwait(true);
/*------------------------------------------------------------------------------------------------------------------------
| Return the corresponding view
\-----------------------------------------------------------------------------------------------------------------------*/
return View(topicViewModel);
}