public void GetLatestCodeDocumentAsync_MultipleCallsWithPendingChangesMemoizesReturnedTasks()
{
// Arrange
var documentTracker = CreateDocumentTracker();
using (var parser = new DefaultVisualStudioRazorParser(
Dispatcher,
documentTracker,
ProjectEngineFactory,
new DefaultErrorReporter(),
Mock.Of <VisualStudioCompletionBroker>()))
{
var latestChange = new SourceChange(0, 0, string.Empty);
var latestSnapshot = documentTracker.TextBuffer.CurrentSnapshot;
parser._latestChangeReference = new BackgroundParser.ChangeReference(latestChange, latestSnapshot);
var codeDocument = TestRazorCodeDocument.CreateEmpty();
codeDocument.SetSyntaxTree(RazorSyntaxTree.Parse(TestRazorSourceDocument.Create()));
var args = new BackgroundParserResultsReadyEventArgs(
parser._latestChangeReference,
codeDocument);
// Act
var getLatestCodeDocumentTask1 = parser.GetLatestCodeDocumentAsync();
var getLatestCodeDocumentTask2 = parser.GetLatestCodeDocumentAsync();
// Assert
Assert.Same(getLatestCodeDocumentTask1, getLatestCodeDocumentTask2);
}
}
public void GetLatestCodeDocumentAsync_MultipleCallsDifferentSnapshotsReturnDifferentTasks()
{
// Arrange
var documentTracker = CreateDocumentTracker();
using (var parser = new DefaultVisualStudioRazorParser(
Dispatcher,
documentTracker,
ProjectEngineFactory,
new DefaultErrorReporter(),
Mock.Of <VisualStudioCompletionBroker>()))
{
var latestChange = new SourceChange(0, 0, string.Empty);
var latestSnapshot = documentTracker.TextBuffer.CurrentSnapshot;
parser._latestChangeReference = new BackgroundParser.ChangeReference(latestChange, latestSnapshot);
var snapshot1 = new StringTextSnapshot("Snapshot 1");
var snapshot2 = new StringTextSnapshot("Snapshot 2");
// Act
var getLatestCodeDocumentTask1 = parser.GetLatestCodeDocumentAsync(snapshot1);
var getLatestCodeDocumentTask2 = parser.GetLatestCodeDocumentAsync(snapshot2);
// Assert
Assert.NotSame(getLatestCodeDocumentTask1, getLatestCodeDocumentTask2);
}
}
public void GetLatestCodeDocumentAsync_MultipleCallsSameSnapshotMemoizesReturnedTasks()
{
// Arrange
var documentTracker = CreateDocumentTracker();
using (var parser = new DefaultVisualStudioRazorParser(
JoinableTaskContext,
documentTracker,
ProjectEngineFactory,
new DefaultErrorReporter(),
Mock.Of <VisualStudioCompletionBroker>(MockBehavior.Strict)))
{
var latestChange = new SourceChange(0, 0, string.Empty);
var latestSnapshot = documentTracker.TextBuffer.CurrentSnapshot;
parser._latestChangeReference = new BackgroundParser.ChangeReference(latestChange, latestSnapshot);
var sameSnapshot = StringTextSnapshot.Empty;
// Act
var getLatestCodeDocumentTask1 = parser.GetLatestCodeDocumentAsync(sameSnapshot);
var getLatestCodeDocumentTask2 = parser.GetLatestCodeDocumentAsync(sameSnapshot);
// Assert
Assert.Same(getLatestCodeDocumentTask1, getLatestCodeDocumentTask2);
}
}
public async Task GetLatestCodeDocumentAsync_NoPendingChangesReturnsImmediately()
{
// Arrange
var documentTracker = CreateDocumentTracker();
using (var parser = new DefaultVisualStudioRazorParser(
Dispatcher,
documentTracker,
ProjectEngineFactory,
new DefaultErrorReporter(),
Mock.Of <VisualStudioCompletionBroker>()))
{
var latestChange = new SourceChange(0, 0, string.Empty);
var latestSnapshot = documentTracker.TextBuffer.CurrentSnapshot;
parser._latestChangeReference = new BackgroundParser.ChangeReference(latestChange, latestSnapshot);
var codeDocument = TestRazorCodeDocument.CreateEmpty();
codeDocument.SetSyntaxTree(RazorSyntaxTree.Parse(TestRazorSourceDocument.Create()));
var args = new BackgroundParserResultsReadyEventArgs(
parser._latestChangeReference,
codeDocument);
parser.OnDocumentStructureChanged(args);
// Act - 1
var getLatestCodeDocumentTask = parser.GetLatestCodeDocumentAsync();
// Assert - 1
Assert.True(getLatestCodeDocumentTask.IsCompleted);
// Act - 2
var latestCodeDocument = await getLatestCodeDocumentTask;
// Assert - 2
Assert.Same(latestCodeDocument, codeDocument);
}
}
public async Task GetLatestCodeDocumentAsync_WaitsForParse()
{
// Arrange
var documentTracker = CreateDocumentTracker();
using (var parser = new DefaultVisualStudioRazorParser(
Dispatcher,
documentTracker,
ProjectEngineFactory,
new DefaultErrorReporter(),
Mock.Of <VisualStudioCompletionBroker>(MockBehavior.Strict)))
{
var latestChange = new SourceChange(0, 0, string.Empty);
var latestSnapshot = documentTracker.TextBuffer.CurrentSnapshot;
parser._latestChangeReference = new BackgroundParser.ChangeReference(latestChange, latestSnapshot);
var codeDocument = TestRazorCodeDocument.CreateEmpty();
var syntaxTree = RazorSyntaxTree.Parse(TestRazorSourceDocument.Create());
codeDocument.SetSyntaxTree(syntaxTree);
var args = new BackgroundParserResultsReadyEventArgs(
parser._latestChangeReference,
codeDocument);
// Act - 1
var getLatestCodeDocumentTask = parser.GetLatestCodeDocumentAsync(StringTextSnapshot.Empty);
// Assert - 1
Assert.False(getLatestCodeDocumentTask.IsCompleted);
// Act - 2
await Task.Run(() => parser.OnResultsReady(sender: null, args));
// Assert - 2
Assert.True(getLatestCodeDocumentTask.IsCompleted);
// Act - 3
var latestCodeDocument = await getLatestCodeDocumentTask;
// Assert - 3
Assert.Same(latestCodeDocument, codeDocument);
}
}
public async Task GetLatestCodeDocumentAsync_ParserDisposed_ReturnsImmediately()
{
// Arrange
var documentTracker = CreateDocumentTracker();
var codeDocument = TestRazorCodeDocument.CreateEmpty();
var syntaxTree = RazorSyntaxTree.Parse(TestRazorSourceDocument.Create());
DefaultVisualStudioRazorParser parser;
codeDocument.SetSyntaxTree(syntaxTree);
using (parser = new DefaultVisualStudioRazorParser(
JoinableTaskContext,
documentTracker,
ProjectEngineFactory,
new DefaultErrorReporter(),
Mock.Of <VisualStudioCompletionBroker>(MockBehavior.Strict)))
{
var latestChange = new SourceChange(0, 0, string.Empty);
var latestSnapshot = documentTracker.TextBuffer.CurrentSnapshot;
parser._latestChangeReference = new BackgroundParser.ChangeReference(latestChange, latestSnapshot);
var args = new BackgroundParserResultsReadyEventArgs(
parser._latestChangeReference,
codeDocument);
// Initialize the document with some content so we have a syntax tree to return.
await Task.Run(() => parser.OnResultsReady(sender: null, args));
}
var newerSnapshot = new StringTextSnapshot("Newer", versionNumber: 1337);
// Act - 1
var getLatestCodeDocumentTask = parser.GetLatestCodeDocumentAsync(newerSnapshot);
// Assert - 1
Assert.True(getLatestCodeDocumentTask.IsCompleted);
// Act - 2
var latestCodeDocument = await getLatestCodeDocumentTask;
// Assert - 2
Assert.Same(latestCodeDocument, codeDocument);
}