public void TrimWhitespace_RopeStringEquivalence()
{
string str = "11111";
Rope r = RopeBuilder.BUILD(new RepeatedCharacterSequence('1', 5));
str = str.Insert(1, "aa");
r = r.Insert(1, "aa");
Compare(r, str);
// Add spaces onto the end and trim
r = r.Append(" ");
str = str + " ";
Compare(r, str);
r = r.Trim();
str = str.Trim();
Compare(r, str);
// Trim without any whitespace
r = r.Trim();
str = str.Trim();
Compare(r, str);
// Lots of whitespace at the beginning
r = r.PadStart(r.Length() + 2);
str = " " + str;
Compare(r, str);
r = r.Trim();
str = str.Trim();
Compare(r, str);
}
public void TestIterator()
{
Rope r = RopeBuilder.BUILD("01234aaa56789");
r = r.Remove(5, 8); // "0123456789"
for (int i = 0; i < r.Length(); ++i)
{
Assert.AreEqual("0123456789"[i], r.CharAt(i));
}
r = r.SubSequence(1, r.Length()); // "123456789"
for (int i = 0; i < r.Length(); ++i)
{
Assert.AreEqual("123456789"[i], r.CharAt(i));
}
r = r.Append('0'); // "1234567890"
int j = 0;
foreach (char c in r)
{
Assert.AreEqual("1234567890"[j], c);
++j;
}
}
public void IndexToLineColumn(string text, int idx, int row, int col)
{
var r = RopeBuilder.BUILD(text);
var coord = r.IndexToLineColumn(idx, '\n');
Assert.AreEqual(coord.Row, row, "Rows should be the same");
Assert.AreEqual(coord.Col, col, "Column should be the same");
}
public void TrimShortStrings_RopeStringEquivalence()
{
string str = " ";
Rope r = RopeBuilder.BUILD(str);
str = str.Trim();
r = r.Trim();
Compare(r, str);
}
public void Random100Actions()
{
// Reads in A Christmas Carol and randomly performs 100 actions on that rope
Rope ropeCC = RopeBuilder.BUILD(ReadChristmasCarol());
for (int i = 0; i < 100; ++i)
{
Array values = Enum.GetValues(typeof(Action));
switch ((Action)values.GetValue(rand.Next(values.Length)))
{
case Action.Append:
ropeCC = AppendRandom(ropeCC);
break;
case Action.Delete:
ropeCC = DeleteRandom(ropeCC);
break;
case Action.Enumerate:
Enumerate(ropeCC);
break;
case Action.Reverse:
ropeCC = Reverse(ropeCC);
break;
case Action.IndexOf:
IndexOfRandom(ropeCC);
break;
case Action.Insert:
ropeCC = InsertRandom(ropeCC);
break;
case Action.TrimStart:
case Action.TrimEnd:
ropeCC = Trim(ropeCC);
break;
case Action.Subsequence:
ropeCC = SubsequenceRandom(ropeCC);
break;
case Action.PadStart:
case Action.PadEnd:
ropeCC = PadRandom(ropeCC);
break;
case Action.StartsWith:
case Action.EndsWith:
StartsEndsWith(ropeCC);
break;
}
}
log.Flush();
}
public Rope PadStart(int toLength, char padChar)
{
int toPad = toLength - this.Length();
if (toPad < 1)
{
return(this);
}
return(RopeUtilities.INSTANCE.Concatenate(RopeBuilder.BUILD(new RepeatedCharacterSequence(padChar, toPad)), this));
}
public void SplitByShouldSplit(string text)
{
var rope = RopeBuilder.BUILD(text);
var expected = text.Split('\n').ToQueue <string>();
foreach (var l in rope.SplitBy('\n'))
{
Assert.AreEqual(expected.Dequeue(), l.ToString());
}
Assert.AreEqual(0, expected.Count, "Queue should be empty after tests");
}
public void ChristmasCarolPerf_Read()
{
string strCC = ReadChristmasCarol();
sw.Start();
Rope ropeCC = RopeBuilder.BUILD(strCC);
sw.Stop();
Report("Constructed rope from ChristmasCarol string", sw.Elapsed);
}
public void TestIndexOfAcrossConcatenateRopes()
{
Rope r = RopeBuilder.BUILD("aaaaaaaaaaaaaaaa12");
r = r.Append("3456789aaaaaa");
r = r.SubSequence(1, r.Length());
Assert.AreEqual(r.IndexOf("123456789", 3), 15);
r = RopeBuilder.BUILD("aaaaaaaaaaaa1111");
r = r.Append("1bbbbbbbbbbbbbbbb");
Assert.AreEqual(r.IndexOf("1111", 3), 12);
}
private Rope AppendRandom(Rope ropeCC)
{
log.WriteLine(GetCurrentMethod());
if (rand.Next() % 2 == 0) // append a new rope
{
log.WriteLine(String.Format("Appending random rope"));
return(Append(ropeCC, RopeBuilder.BUILD(GetRandomString())));
}
log.WriteLine(String.Format("Appending random string"));
return(Append(ropeCC, GetRandomString()));
}
public void ChristmasCarolPerf_InsertBack()
{
string strCC = new string(ReadChristmasCarol());
Rope ropeCC = RopeBuilder.BUILD(strCC);
sw.Start();
strCC = strCC.Insert(strCC.Length - 1, "hello!");
sw.Stop();
Report("Insertion time for ChristmasCarol string", sw.Elapsed);
sw.Restart();
ropeCC = ropeCC.Insert(ropeCC.Length() - 1, "hello!");
sw.Stop();
Report("Insertion time for ChristmasCarol Rope", sw.Elapsed);
}
public void ChristmasCarolPerf_DeleteFront()
{
string strCC = new string(ReadChristmasCarol());
Rope ropeCC = RopeBuilder.BUILD(strCC);
sw.Start();
strCC = strCC.Remove(5, 550);
sw.Stop();
Report("Substring time for ChristmasCarol string", sw.Elapsed);
sw.Restart();
ropeCC = ropeCC.SubSequence(5, 555);
sw.Stop();
Report("Substring time for ChristmasCarol Rope", sw.Elapsed);
}
public void DeleteFromMiddleOfReverse_RopeStringEquivalence()
{
string str = "Hello darkness, my old 12345friend";
Rope r = RopeBuilder.BUILD(str);
str = StringReverse(str);
r = r.Reverse();
Compare(r, str);
str = str.Remove(6, 5);
string s1 = r.SubSequence(0, 6).ToString();
string s2 = r.SubSequence(11, r.Length()).ToString();
r = r.Remove(6, 11);
Compare(r, str);
}
public void TestSubstringAppend()
{
Rope r = RopeBuilder.BUILD("");
r = r.Append("round ");
r = r.Append((0).ToString());
r = r.Append(" 1234567890");
Assert.AreEqual("round ", RopeToString(r, 0, 6));
Assert.AreEqual("round 0", RopeToString(r, 0, 7));
Assert.AreEqual("round 0 ", RopeToString(r, 0, 8));
Assert.AreEqual("round 0 1", RopeToString(r, 0, 9));
Assert.AreEqual("round 0 12", RopeToString(r, 0, 10));
Assert.AreEqual("round 0 1234567890", RopeToString(r, 0, 18));
Assert.AreEqual("round 0 1234567890", RopeToString(r, 0, r.Length()));
}
public void TestSubstringDelete()
{
string s = "12345678902234567890";
Rope rope = RopeBuilder.BUILD(s);
rope = rope.Remove(0, 1);
Assert.AreEqual("23", RopeToString(rope, 0, 2));
Assert.AreEqual("", RopeToString(rope, 0, 0));
Assert.AreEqual("902", RopeToString(rope, 7, 10));
rope = RopeBuilder.BUILD(s.ToCharArray());
rope = rope.Remove(0, 1);
Assert.AreEqual("23", RopeToString(rope, 0, 2));
Assert.AreEqual("", RopeToString(rope, 0, 0));
Assert.AreEqual("902", RopeToString(rope, 7, 10));
}
public void SubstringRopeReverse_RopeStringEquivalence()
{
string str = "abcdefghijklmnopqrstuvwxyz";
Rope r = RopeBuilder.BUILD(str);
str = str.Substring(15);
r = r.SubSequence(15, r.Length());
Compare(r, str);
str = StringReverse(str);
r = r.Reverse();
Compare(r, str);
str = str + " ";
r = r.PadEnd(r.Length() + 2);
Compare(r, str);
}
public void TestIEnumerator()
{
Rope r = RopeBuilder.BUILD("01234aaa56789");
r = r.Insert(4, "0000001123456");
r = r.Insert(3, "hello, stranger");
r = r.Remove(4, 10);
r = r.Insert(0, " ");
r = r.SubSequence(3, 17);
IEnumerator enumerator = r.GetEnumerator();
while (enumerator.MoveNext())
{
Assert.IsTrue(enumerator.Current != null);
}
}
public void AddRemoveFromMiddle_RopeStringEquivalence()
{
string str = "11111";
Rope r = RopeBuilder.BUILD(new RepeatedCharacterSequence('1', 5));
str = str.Insert(1, "aa");
r = r.Insert(1, "aa");
Compare(r, str);
Assert.AreEqual(str.IndexOf("aa", 1), r.IndexOf("aa", 1));
str = str.Remove(1, 2);
r = r.Remove(1, 3);
Compare(r, str);
Assert.AreEqual(str.IndexOf("aa", 1), r.IndexOf("aa", 1));
Assert.AreEqual(str.IndexOf("doesn't exist", 1), r.IndexOf("doesn't exist", 1));
}
public Rope Insert(int dstOffset, string s)
{
Rope r = (s == null) ? RopeBuilder.BUILD("null") : RopeBuilder.BUILD(s);
if (dstOffset == 0)
{
return(r.Append(this));
}
else if (dstOffset == this.Length())
{
return(this.Append(r));
}
else if (dstOffset < 0 || dstOffset > this.Length())
{
throw new IndexOutOfRangeException(dstOffset + " is out of range [" + 0 + ":" + this.Length() + "]");
}
return(this.SubSequence(0, dstOffset).Append(r).Append(this.SubSequence(dstOffset, this.Length())));
}
public void AppendReversedSubstrings_RopeStringEquivalence()
{
string str = "abcdefghijklmnopqrstuvwxyz ";
Rope r = RopeBuilder.BUILD(str);
str = " " + str;
r = r.PadStart(r.Length() + 3);
Compare(r, str);
str = StringReverse(str.Substring(2)) + StringReverse(str.Substring(2, 6));
r = r.SubSequence(2).Reverse().Append(r.SubSequence(2, 8).Reverse());
Compare(r, str);
str = str.Trim();
r = r.Trim();
Compare(r, str);
str = str.Substring(5);
r = r.SubSequence(5);
Compare(r, str);
}
public void TrimPaddedReverseRope_RopeStringEquivalence()
{
string str = "abcdefghijklmnopqrstuvwxyz ";
Rope r = RopeBuilder.BUILD(str);
str = " " + str;
r = r.PadStart(r.Length() + 3);
Compare(r, str);
str = str.Substring(2, 18);
r = r.SubSequence(2, 20);
Compare(r, str);
str = StringReverse(str);
r = r.Reverse();
Compare(r, str);
str = str.Trim();
r = r.Trim();
Compare(r, str);
}
public void TestIndexOf()
{
string strTest = "Hello, world!";
Rope ropeTest = RopeBuilder.BUILD(strTest);
Compare(ropeTest, strTest);
ropeTest = ropeTest.Insert(7, "under");
strTest = "Hello, underworld!";
Compare(ropeTest, strTest);
ropeTest = ropeTest.SubSequence(1, ropeTest.Length());
strTest = "ello, underworld!";
Compare(ropeTest, strTest);
ropeTest = ropeTest.Append("123456789");
strTest = strTest + "123456789";
Compare(ropeTest, strTest);
ropeTest = ropeTest.Append("123456789");
strTest = strTest + "123456789";
Compare(ropeTest, strTest);
}
public void RandomActionsCompareToString()
{
// Performs random actions on both a string and a rope, comparing the two after each action
string output = ReadChristmasCarol();
Rope ropeCC = RopeBuilder.BUILD(output);
string strCC = new string(output);
for (int i = 0; i < 50000; ++i)
{
// useful values for random access
int length = ropeCC.Length();
int start = rand.Next(length / 2);
int end = Math.Max(start + 1, length - rand.Next(length / 3));
end = Math.Min(end, length);
Array values = Enum.GetValues(typeof(Action));
Action performAction = (Action)values.GetValue(rand.Next(values.Length));
switch (performAction)
{
case Action.Append:
string randomAppend = GetRandomString();
ropeCC = Append(ropeCC, randomAppend);
strCC += randomAppend;
break;
case Action.Delete:
ropeCC = ropeCC.Remove(start, end);
strCC = strCC.Remove(start, end - start);
break;
case Action.Enumerate:
Enumerate(ropeCC);
break;
case Action.Reverse:
ropeCC = Reverse(ropeCC);
char[] charCC = strCC.ToCharArray();
Array.Reverse(charCC);
strCC = new String(charCC);
break;
case Action.IndexOf:
int fromIndex = rand.Next(ropeCC.Length() / 4);
// take a random sequence from the string
int iStart = fromIndex + rand.Next((ropeCC.Length() - fromIndex) / 2);
int randLength = Math.Min(rand.Next(5), strCC.Length - iStart);
string randSubstring = strCC.Substring(iStart, randLength);
Assert.AreEqual(strCC.IndexOf(randSubstring, fromIndex), ropeCC.IndexOf(randSubstring, fromIndex));
break;
case Action.Insert:
int iOffset = rand.Next(strCC.Length / 2);
string strToInsert = GetRandomString();
ropeCC = Insert(ropeCC, iOffset, strToInsert);
strCC = strCC.Substring(0, iOffset) + strToInsert + strCC.Substring(iOffset);
break;
case Action.TrimStart:
case Action.TrimEnd:
ropeCC = Trim(ropeCC);
strCC = strCC.Trim();
break;
case Action.Subsequence:
ropeCC = Subsequence(ropeCC, start, end);
strCC = strCC.Substring(start, end - start);
break;
case Action.PadStart:
case Action.PadEnd:
ropeCC = ropeCC.PadStart(length + 5, ' ');
strCC = strCC.PadLeft(length + 5, ' ');
break;
case Action.StartsWith:
case Action.EndsWith:
Assert.AreEqual(ropeCC.StartsWith("a"), strCC.StartsWith("a"));
Assert.AreEqual(ropeCC.StartsWith("e"), strCC.StartsWith("e"));
Assert.AreEqual(ropeCC.EndsWith("a"), strCC.EndsWith("a"));
Assert.AreEqual(ropeCC.EndsWith("e"), strCC.EndsWith("e"));
Assert.AreEqual(ropeCC.StartsWith("he"), strCC.StartsWith("he"));
Assert.AreEqual(ropeCC.StartsWith("the"), strCC.StartsWith("the"));
Assert.AreEqual(ropeCC.EndsWith("he"), strCC.EndsWith("he"));
Assert.AreEqual(ropeCC.EndsWith("m."), strCC.EndsWith("m."));
break;
}
log.Flush();
Assert.AreEqual(strCC.Length, ropeCC.Length());
int j = 0;
foreach (char c in ropeCC)
{
Assert.AreEqual(c, strCC[j]);
j++;
}
}
log.Flush();
}
public static Rope AsRope(this string v) => RopeBuilder.BUILD(v);
public Rope Append(string suffix)
{
return(RopeUtilities.INSTANCE.Concatenate(this, RopeBuilder.BUILD(suffix)));
}
public Rope Append(char c)
{
return(RopeUtilities.INSTANCE.Concatenate(this, RopeBuilder.BUILD(c.ToString())));
}
public Rope Append(string suffix, int start, int end)
{
return(RopeUtilities.INSTANCE.Concatenate(this, RopeBuilder.BUILD(suffix).SubSequence(start, end)));
}
