public void BufferSync_Issue3570()
{
// https://github.com/Microsoft/PTVS/issues/3570
var buffer = new MockTextBuffer("line");
var bi = PythonTextBufferInfo.ForBuffer(null, buffer);
bi.AddSentSnapshot(buffer.CurrentSnapshot);
Assert.AreEqual(new SourceLocation(1, 5), bi.LocationTracker.GetSourceLocation(4, 0));
using (var e = buffer.CreateEdit()) {
e.Insert(e.Snapshot.Length, "\r\n");
e.Apply();
}
using (var e = buffer.CreateEdit()) {
e.Insert(e.Snapshot.Length, " c");
e.Apply();
}
using (var e = buffer.CreateEdit()) {
e.Insert(e.Snapshot.Length, "o");
e.Apply();
}
var updates = BufferParser.GetUpdatesForSnapshot(bi, buffer.CurrentSnapshot).ToArray();
var changeInfo = string.Join(", ", updates
.Select(u => string.Join(", ", u.changes.Select(c => $"({c.startLine},{c.startColumn},'{c.newText}')")))
.Select(u => $"[{u}]"));
Assert.AreEqual("[(1,5,'\r\n')], [(2,1,' c')], [(2,6,'o')]", changeInfo);
}
private static void AssertExpression(string content, string expected, int index = -1, PythonLanguageVersion version = PythonLanguageVersion.V35)
{
var buffer = new MockTextBuffer(content);
if (index < 0)
{
index += content.Length + 1;
}
var span = new SnapshotSpan(buffer.CurrentSnapshot, index, 0);
var actual = PythonTextBufferInfo.ForBuffer(null, buffer).GetExpressionAtPoint(span, GetExpressionOptions.Hover);
Assert.AreEqual(expected, actual?.GetText(), content);
}
private static void AssertIndent(string code, int lineNumber, int expected, int tabSize = 4, int indentSize = 4)
{
var buffer = new MockTextBuffer(code, PythonContentType);
var view = new MockTextView(buffer);
view.Options.SetOptionValue(DefaultOptions.IndentSizeOptionId, indentSize);
view.Options.SetOptionValue(DefaultOptions.TabSizeOptionId, tabSize);
var line = buffer.CurrentSnapshot.GetLineFromLineNumber(lineNumber - 1);
var actual = AutoIndent.GetLineIndentation(PythonTextBufferInfo.ForBuffer(null, buffer), line, view);
Assert.AreEqual(expected, actual, line.GetText());
}
public void BufferSync_Issue3733()
{
// https://github.com/Microsoft/PTVS/issues/3733
var bigString = string.Join("\n", Enumerable.Repeat("content", 1000));
var buffer = new MockTextBuffer("");
var bi = PythonTextBufferInfo.ForBuffer(null, buffer);
bi.AddSentSnapshot(buffer.CurrentSnapshot);
bi.LocationTracker.UpdateBaseSnapshot(buffer.CurrentSnapshot);
AssertLines(bi, 0);
using (var e = buffer.CreateEdit())
{
e.Insert(e.Snapshot.Length, bigString);
e.Apply();
}
bi.LocationTracker.UpdateBaseSnapshot(buffer.CurrentSnapshot);
int beforeVersion = bi.Buffer.CurrentSnapshot.Version.VersionNumber;
using (var e = buffer.CreateEdit())
{
e.Replace(0, e.Snapshot.Length, "z");
e.Apply();
}
bi.LocationTracker.UpdateBaseSnapshot(buffer.CurrentSnapshot);
using (var e = buffer.CreateEdit())
{
e.Insert(e.Snapshot.Length, bigString);
e.Apply();
}
bi.LocationTracker.UpdateBaseSnapshot(buffer.CurrentSnapshot);
var before = bi.LocationTracker.GetLineLocations(beforeVersion);
var after = bi.LocationTracker.GetLineLocations(bi.Buffer.CurrentSnapshot.Version.VersionNumber);
foreach (var t in before.Zip(after, Tuple.Create))
{
Assert.AreEqual(t.Item1.EndIndex, t.Item2.EndIndex - 1);
}
}
private static void AssertHasExpression(string content, bool expectExpression, int index = -1, PythonLanguageVersion version = PythonLanguageVersion.V35)
{
var buffer = new MockTextBuffer(content);
if (index < 0)
{
index += content.Length + 1;
}
var pt = new SnapshotPoint(buffer.CurrentSnapshot, index);
var actual = PythonTextBufferInfo.ForBuffer(null, buffer).IsPossibleExpressionAtPoint(pt);
if (expectExpression)
{
Assert.IsTrue(actual, content);
}
else
{
Assert.IsFalse(actual, content);
}
}