// Internal for testing
internal IAsyncCompletionSource CreateCompletionSource(ITextBuffer razorBuffer)
{
if (!razorBuffer.Properties.TryGetProperty(typeof(VisualStudioRazorParser), out VisualStudioRazorParser parser))
{
// Parser hasn't been associated with the text buffer yet.
return(null);
}
var completionSource = new RazorDirectiveCompletionSource(_foregroundDispatcher, parser, _completionFactsService);
return(completionSource);
}
public async Task GetDescriptionAsync_DoesNotAddDescriptionWhenPropertyAbsent()
{
// Arrange
var completionItem = new CompletionItem("TestDirective", Mock.Of <IAsyncCompletionSource>());
var completionSource = new RazorDirectiveCompletionSource(Dispatcher, Mock.Of <VisualStudioRazorParser>(), CompletionFactsService);
// Act
var descriptionObject = await completionSource.GetDescriptionAsync(null, completionItem, CancellationToken.None);
// Assert
var description = Assert.IsType <string>(descriptionObject);
Assert.Equal(string.Empty, description);
}
public async Task GetDescriptionAsync_AddsDirectiveDescriptionIfPropertyExists()
{
// Arrange
var completionItem = new CompletionItem("TestDirective", Mock.Of <IAsyncCompletionSource>());
var expectedDescription = "The expected description";
completionItem.Properties.AddProperty(RazorDirectiveCompletionSource.DescriptionKey, expectedDescription);
var completionSource = new RazorDirectiveCompletionSource(Dispatcher, Mock.Of <VisualStudioRazorParser>(), CompletionFactsService);
// Act
var descriptionObject = await completionSource.GetDescriptionAsync(null, completionItem, CancellationToken.None);
// Assert
var description = Assert.IsType <string>(descriptionObject);
Assert.Equal(expectedDescription, descriptionObject);
}
public async Task GetCompletionContextAsync_DoesNotProvideCompletionsWhenNotAtCompletionPoint()
{
// Arrange
var text = "@(NotValidCompletionLocation)";
var parser = CreateParser(text);
var completionSource = new RazorDirectiveCompletionSource(Dispatcher, parser, CompletionFactsService);
var documentSnapshot = new StringTextSnapshot(text);
var triggerLocation = new SnapshotPoint(documentSnapshot, 4);
var applicableSpan = new SnapshotSpan(documentSnapshot, new Span(2, text.Length - 3 /* @() */));
// Act
var completionContext = await Task.Run(
async() => await completionSource.GetCompletionContextAsync(null, new CompletionTrigger(CompletionTriggerReason.Invoke, triggerLocation.Snapshot), triggerLocation, applicableSpan, CancellationToken.None));
// Assert
Assert.Empty(completionContext.Items);
}
public async Task GetCompletionContextAsync_DoesNotProvideCompletionsPriorToParseResults()
{
// Arrange
var text = "@validCompletion";
var parser = Mock.Of <VisualStudioRazorParser>(); // CodeDocument will be null faking a parser without a parse.
var completionSource = new RazorDirectiveCompletionSource(Dispatcher, parser, CompletionFactsService);
var documentSnapshot = new StringTextSnapshot(text);
var triggerLocation = new SnapshotPoint(documentSnapshot, 4);
var applicableSpan = new SnapshotSpan(documentSnapshot, new Span(1, text.Length - 1 /* validCompletion */));
// Act
var completionContext = await Task.Run(
async() => await completionSource.GetCompletionContextAsync(null, new CompletionTrigger(CompletionTriggerReason.Invoke, triggerLocation.Snapshot), triggerLocation, applicableSpan, CancellationToken.None));
// Assert
Assert.Empty(completionContext.Items);
}
public async Task GetCompletionContextAsync_ProvidesCompletionsWhenAtCompletionPoint()
{
// Arrange
var text = "@addTag";
var parser = CreateParser(text, SectionDirective.Directive);
var completionSource = new RazorDirectiveCompletionSource(Dispatcher, parser, CompletionFactsService);
var documentSnapshot = new StringTextSnapshot(text);
var triggerLocation = new SnapshotPoint(documentSnapshot, 4);
var applicableSpan = new SnapshotSpan(documentSnapshot, new Span(1, 6 /* addTag */));
// Act
var completionContext = await Task.Run(
async() => await completionSource.GetCompletionContextAsync(null, new CompletionTrigger(CompletionTriggerReason.Invoke, triggerLocation.Snapshot), triggerLocation, applicableSpan, CancellationToken.None));
// Assert
Assert.Collection(
completionContext.Items,
item => AssertRazorCompletionItem(SectionDirective.Directive, item, completionSource),
item => AssertRazorCompletionItem(DefaultDirectives[0], item, completionSource),
item => AssertRazorCompletionItem(DefaultDirectives[1], item, completionSource),
item => AssertRazorCompletionItem(DefaultDirectives[2], item, completionSource));
}
