public void diff_linesToCharsTest()
{
diff_match_patchTest dmp = new diff_match_patchTest();
// Convert lines down to characters.
List<string> tmpVector = new List<string>();
tmpVector.Add("");
tmpVector.Add("alpha\n");
tmpVector.Add("beta\n");
Object[] result = dmp.DiffLinesToChars("alpha\nbeta\nalpha\n", "beta\nalpha\nbeta\n");
Assert.AreEqual("\u0001\u0002\u0001", result[0]);
Assert.AreEqual("\u0002\u0001\u0002", result[1]);
CollectionAssert.AreEqual(tmpVector, (List<string>)result[2]);
tmpVector.Clear();
tmpVector.Add("");
tmpVector.Add("alpha\r\n");
tmpVector.Add("beta\r\n");
tmpVector.Add("\r\n");
result = dmp.DiffLinesToChars("", "alpha\r\nbeta\r\n\r\n\r\n");
Assert.AreEqual("", result[0]);
Assert.AreEqual("\u0001\u0002\u0003\u0003", result[1]);
CollectionAssert.AreEqual(tmpVector, (List<string>)result[2]);
tmpVector.Clear();
tmpVector.Add("");
tmpVector.Add("a");
tmpVector.Add("b");
result = dmp.DiffLinesToChars("a", "b");
Assert.AreEqual("\u0001", result[0]);
Assert.AreEqual("\u0002", result[1]);
CollectionAssert.AreEqual(tmpVector, (List<string>)result[2]);
// More than 256 to reveal any 8-bit limitations.
int n = 300;
tmpVector.Clear();
StringBuilder lineList = new StringBuilder();
StringBuilder charList = new StringBuilder();
for (int x = 1; x < n + 1; x++) {
tmpVector.Add(x + "\n");
lineList.Append(x + "\n");
charList.Append(Convert.ToChar(x));
}
Assert.AreEqual(n, tmpVector.Count);
string lines = lineList.ToString();
string chars = charList.ToString();
Assert.AreEqual(n, chars.Length);
tmpVector.Insert(0, "");
result = dmp.DiffLinesToChars(lines, "");
Assert.AreEqual(chars, result[0]);
Assert.AreEqual("", result[1]);
CollectionAssert.AreEqual(tmpVector, (List<string>)result[2]);
}
