public async Task ProvidesCompletions()
{
var contentType = MimeTypeCatalog.Instance.GetContentTypeForMimeType("text/x-csharp");
var text = @"
namespace console61
{
class MainClass
{
public static void Main (string [] args)
{
$Console.WriteLine(2);$
}
static void Method2 (int a)
{
}
}
}
";
int startOfStatement = text.IndexOf('$');
if (startOfStatement >= 0)
{
text = text.Substring(0, startOfStatement) + text.Substring(startOfStatement + 1);
}
int endOfStatement = text.IndexOf('$');
if (endOfStatement >= 0)
{
text = text.Substring(0, endOfStatement) + text.Substring(endOfStatement + 1);
}
var buffer = PlatformCatalog.Instance.TextBufferFactoryService.CreateTextBuffer(text, contentType);
var doc = GetAnalysisDocument(text);
var controller = new DebuggerCompletionProvider(doc, buffer);
var snapshot = buffer.CurrentSnapshot;
var startLine = snapshot.GetLineFromPosition(startOfStatement);
var startColumn = startOfStatement - startLine.Start.Position;
var endLine = snapshot.GetLineFromPosition(endOfStatement);
var endColumn = endOfStatement - endLine.Start.Position;
var completionResult =
await controller.GetExpressionCompletionDataAsync("a", new StackFrame (0, new SourceLocation("", "", startLine.LineNumber, startColumn, endLine.LineNumber, endColumn), "C#"), default);
var items = completionResult.Items.Select(i => i.Name);
Assert.That(items, Contains.Item("args"));
Assert.That(items, Contains.Item("MainClass"));
Assert.That(items, Contains.Item("Method2"));
Assert.AreEqual(1, completionResult.ExpressionLength);
}
public async Task HandlesWhenTextBufferChangesAndContainsLessLines()
{
var contentType = MimeTypeCatalog.Instance.GetContentTypeForMimeType("text/x-csharp");
var text = @"
namespace console61
{
class MainClass
{
static void MethodA (int a)
{
}
static void MethodB (int a)
{
}
static void MethodC (int a)
{
}
public static void Main (string [] args)
{
$Console.WriteLine(2);$
}
static void Method2 (int a)
{
}
}
}
";
var textAfter = @"
namespace console61
{
class MainClass
{
}
static void MethodZ (int a)
{
}
}
";
int startOfStatement = text.IndexOf('$');
if (startOfStatement >= 0)
{
text = text.Substring(0, startOfStatement) + text.Substring(startOfStatement + 1);
}
int endOfStatement = text.IndexOf('$');
if (endOfStatement >= 0)
{
text = text.Substring(0, endOfStatement) + text.Substring(endOfStatement + 1);
}
var buffer = PlatformCatalog.Instance.TextBufferFactoryService.CreateTextBuffer(text, contentType);
var doc = GetAnalysisDocument(text);
var snapshot = buffer.CurrentSnapshot;
var startLine = snapshot.GetLineFromPosition(startOfStatement);
var startColumn = startOfStatement - startLine.Start.Position;
var endLine = snapshot.GetLineFromPosition(endOfStatement);
var endColumn = endOfStatement - endLine.Start.Position;
// get the stack frame
var stackFrame = new StackFrame(0, new SourceLocation("", "", startLine.LineNumber, startColumn, endLine.LineNumber, endColumn), "C#");
// now, alter the source so that the stack frame's location appear after the last line in the buffer
var bufferAfter = PlatformCatalog.Instance.TextBufferFactoryService.CreateTextBuffer(textAfter, contentType);
var docAfter = GetAnalysisDocument(textAfter);
var controller = new DebuggerCompletionProvider(docAfter, bufferAfter);
var completionResult =
await controller.GetExpressionCompletionDataAsync("a", stackFrame, default);
Assert.IsNull(completionResult);
}