public void ShouldHandleHugeAmountTextSpans_WhenBatchModeIsActive(Int32 lines)
{
// Given
var textBuilder = new StringBuilder();
var line = "one,two,three,four";
for (var i = 0; i < lines; i++)
{
textBuilder.AppendLine(line);
}
var underTest = new TextDocument(textBuilder.ToString());
var ranges = new List <TextRange>();
for (var i = 0; i < lines; i++)
{
var offset = (line.Length + Environment.NewLine.Length) * i;
ranges.Add(underTest.CreateOrGetTextRange(offset + 0, offset + 3));
underTest.CreateOrGetTextRange(offset + 4, offset + 7);
}
// When
var watch = Stopwatch.StartNew();
underTest.BeginTransaction();
foreach (var range in ranges)
{
underTest.ChangeText(range, "onetwo");
}
underTest.EndTransaction();
watch.Stop();
// Then
Console.WriteLine(watch.Elapsed);
}