private async Task CheckResultsAsync(
Document document, int position, string expectedItemOrNull, string expectedDescriptionOrNull, bool usePreviousCharAsTrigger, bool checkForAbsence, Glyph?glyph)
{
var code = (await document.GetTextAsync()).ToString();
CompletionTrigger trigger = CompletionTrigger.Default;
if (usePreviousCharAsTrigger)
{
trigger = CompletionTrigger.CreateInsertionTrigger(insertedCharacter: code.ElementAt(position - 1));
}
var completionService = GetCompletionService(document.Project.Solution.Workspace);
var completionList = await GetCompletionListAsync(completionService, document, position, trigger);
var items = completionList == null ? default(ImmutableArray <CompletionItem>) : completionList.Items;
if (checkForAbsence)
{
if (items == null)
{
return;
}
if (expectedItemOrNull == null)
{
Assert.Empty(items);
}
else
{
AssertEx.None(
items,
c => CompareItems(c.DisplayText, expectedItemOrNull) &&
(expectedDescriptionOrNull != null ? completionService.GetDescriptionAsync(document, c).Result.Text == expectedDescriptionOrNull : true));
}
}
else
{
if (expectedItemOrNull == null)
{
Assert.NotEmpty(items);
}
else
{
AssertEx.Any(items, c => CompareItems(c.DisplayText, expectedItemOrNull) &&
(expectedDescriptionOrNull != null ? completionService.GetDescriptionAsync(document, c).Result.Text == expectedDescriptionOrNull : true) &&
(glyph.HasValue ? CompletionHelper.TagsEqual(c.Tags, GlyphTags.GetTags(glyph.Value)) : true));
}
}
}
