public void FixUpFirstPartOfDelimiter()
{
document.Text = "a\n\nb";
document.Replace(1, 1, "\r");
Assert.AreEqual("a\r\nb", document.Text);
CheckDocumentLines("a",
"b");
}
public void ShortReplacements()
{
char[] chars = { 'a', 'b', '\r', '\n' };
char[] buffer = new char[20];
for (int i = 0; i < 2500; i++)
{
int offset = rnd.Next(0, document.TextLength);
int length = rnd.Next(0, document.TextLength - offset);
int newTextLength = rnd.Next(0, 20);
for (int j = 0; j < newTextLength; j++)
{
buffer[j] = chars[rnd.Next(0, chars.Length)];
}
document.Replace(offset, length, new string(buffer, 0, newTextLength));
CheckLines();
}
}
public void MoveAnchorsDuringReplace()
{
document.Text = "abcd";
TextAnchor start = document.CreateAnchor(1);
TextAnchor middleDeletable = document.CreateAnchor(2);
TextAnchor middleSurvivorLeft = document.CreateAnchor(2);
middleSurvivorLeft.SurviveDeletion = true;
middleSurvivorLeft.MovementType = AnchorMovementType.BeforeInsertion;
TextAnchor middleSurvivorRight = document.CreateAnchor(2);
middleSurvivorRight.SurviveDeletion = true;
middleSurvivorRight.MovementType = AnchorMovementType.AfterInsertion;
TextAnchor end = document.CreateAnchor(3);
document.Replace(1, 2, "BxC");
Assert.AreEqual(1, start.Offset);
Assert.IsTrue(middleDeletable.IsDeleted);
Assert.AreEqual(1, middleSurvivorLeft.Offset);
Assert.AreEqual(4, middleSurvivorRight.Offset);
Assert.AreEqual(4, end.Offset);
}
public void BackwardChanges()
{
TextDocument document = new TextDocument("initial text");
ITextSource snapshot1 = document.CreateSnapshot();
document.Replace(0, 7, "nw");
document.Insert(1, "e");
ITextSource snapshot2 = document.CreateSnapshot();
Assert.AreEqual(1, snapshot2.Version.CompareAge(snapshot1.Version));
TextChangeEventArgs[] arr = snapshot2.Version.GetChangesTo(snapshot1.Version).ToArray();
Assert.AreEqual(2, arr.Length);
Assert.AreEqual("", arr[0].InsertedText.Text);
Assert.AreEqual("initial", arr[1].InsertedText.Text);
Assert.AreEqual("initial text", snapshot1.Text);
Assert.AreEqual("new text", snapshot2.Text);
}
public void Undo()
{
var map = _change.OffsetChangeMapOrNull;
_document.Replace(_change.Offset, _change.InsertionLength, _change.RemovedText, map?.Invert());
}