public void Setup()
{
document = new TextDocument();
document.Text = "1\n2\n3\n4\n5\n6\n7\n8\n9\n10";
heightTree = new HeightTree(document, 10);
foreach (DocumentLine line in document.Lines) {
heightTree.SetHeight(line, line.LineNumber);
}
}
internal CollapsedLineSection(HeightTree heightTree, DocumentLine start, DocumentLine end)
{
this.heightTree = heightTree;
this.start = start;
this.end = end;
#if DEBUG
this.ID = "#" + (nextId++);
#endif
}
internal CollapsedLineSection(HeightTree heightTree, DocumentLine start, DocumentLine end)
{
this.heightTree = heightTree;
this.start = start;
this.end = end;
#if DEBUG
this.ID = "#" + (nextId++);
#endif
}
internal CollapsedLineSection(HeightTree heightTree, DocumentLine start, DocumentLine end)
{
this.heightTree = heightTree;
this.start = start;
this.end = end;
unchecked {
this.ID = " #" + (nextId++);
}
}
internal static void CheckHeights(TextDocument document, HeightTree heightTree)
{
double[] heights = document.Lines.Select(l => heightTree.GetIsCollapsed(l) ? 0 : heightTree.GetHeight(l)).ToArray();
double[] visualPositions = new double[document.LineCount+1];
for (int i = 0; i < heights.Length; i++) {
visualPositions[i+1]=visualPositions[i]+heights[i];
}
foreach (DocumentLine ls in document.Lines) {
Assert.AreEqual(visualPositions[ls.LineNumber-1], heightTree.GetVisualPosition(ls));
}
Assert.AreEqual(visualPositions[document.LineCount], heightTree.TotalHeight);
}
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);
}
}