public void CollapsingTest()
{
char[] chars = { 'a', 'b', '\r', '\n' };
char[] buffer = new char[20];
HeightTree heightTree = new HeightTree(document, 10);
List <CollapsedLineSection> collapsedSections = new List <CollapsedLineSection>();
for (int i = 0; i < 2500; i++)
{
// Console.WriteLine("Iteration " + i);
// Console.WriteLine(heightTree.GetTreeAsString());
// foreach (CollapsedLineSection cs in collapsedSections) {
// Console.WriteLine(cs);
// }
switch (rnd.Next(0, 10))
{
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
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));
break;
case 6:
case 7:
int startLine = rnd.Next(1, document.LineCount + 1);
int endLine = rnd.Next(startLine, document.LineCount + 1);
collapsedSections.Add(heightTree.CollapseText(document.GetLineByNumber(startLine), document.GetLineByNumber(endLine)));
break;
case 8:
if (collapsedSections.Count > 0)
{
CollapsedLineSection cs = collapsedSections[rnd.Next(0, collapsedSections.Count)];
// unless the text section containing the CollapsedSection was deleted:
if (cs.Start != null)
{
cs.Uncollapse();
}
collapsedSections.Remove(cs);
}
break;
case 9:
foreach (DocumentLine ls in document.Lines)
{
heightTree.SetHeight(ls, ls.LineNumber);
}
break;
}
var treeSections = new HashSet <CollapsedLineSection>(heightTree.GetAllCollapsedSections());
int expectedCount = 0;
foreach (CollapsedLineSection cs in collapsedSections)
{
if (cs.Start != null)
{
expectedCount++;
Assert.IsTrue(treeSections.Contains(cs));
}
}
Assert.AreEqual(expectedCount, treeSections.Count);
CheckLines();
HeightTests.CheckHeights(document, heightTree);
}
}
void CheckHeights()
{
HeightTests.CheckHeights(document, heightTree);
}
