public void AdvancePastEnd()
{
TextSource source = new TextSource("test");
TextNavigator nav = new TextNavigator(source.CurrentSnapshot);
nav.Advance();
nav.Advance();
nav.Advance();
nav.Advance();
Assert.AreEqual(TextNavigator.EndCharacter, nav.PeekChar());
}
public void PeekAheadToNextLine()
{
string lines = "one\r\ntwo\r\nthree\r\n";
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
TextNavigator nav = new TextNavigator(source.CurrentSnapshot);
int index = 0;
while (nav.PeekChar() != TextNavigator.EndCharacter)
{
Assert.AreEqual(lines[index++], nav.PeekChar());
nav.Advance();
}
}
public void ShortSpan()
{
string lines = "one\r\ntwo\r\nthree\r\n";
MultiLineTextSource source = MultiLineTextSource.FromString(lines);
TextNavigator nav = new TextNavigator(source.CurrentSnapshot, Span.Create(5, 12));
for (int i = 5; i <= 12; i++)
{
Assert.AreEqual(lines[i], nav.PeekChar());
nav.Advance();
}
Assert.AreEqual(TextNavigator.EndCharacter, nav.PeekChar());
}
