public void GetLineNo_Passes()
{
var br = System.Environment.NewLine;
{
var text = "a\n"
+ "b\n"
+ "c\n"
+ "d"
;
var lineNo = 1;
for (var i = 0; i < text.Length; ++i)
{
Assert.AreEqual(lineNo, text.GetLineNo(i), $"Fail... pos={i}");
if (text[i] == '\n')
{
lineNo++;
}
}
}
var rnd = new System.Random();
for (var i = 0; i < 1000; ++i)
{
var newlineCount = rnd.Range(1, 20);
var text = Enumerable.Range(0, newlineCount)
.Select(_i => rnd.RandomString(rnd.Range(1, 10)))
.Aggregate("", (_s, _c) => _s + _c + br);
Assert.AreEqual(newlineCount, text.GetLineNo(), $"Fail...");
var pos = rnd.Range(0, text.Length);
var newlineCount2 = 1;
for (var j = 0; j < pos; ++j)
{
if (text[j] == '\n')
{
newlineCount2++;
}
}
Assert.AreEqual(newlineCount2, text.GetLineNo(pos), $"Fail to specify pos({pos})...");
}
}