public void GetLinesFromZeroOrOneBlockTest()
{
int patternLength = 3;
var pattern = new string('\0', patternLength);
LineBuilder builder = new LineBuilder(pattern, null);
string text = "a";
var textBlock = new TextBlock(text);
var zeroOrOneBlock = new ZeroOrOneBlock(textBlock);
List<string> lines = builder.GetLinesFromZeroOrOneBlock(0, zeroOrOneBlock).ToList();
string[] expectedLines = new[] { "", "a" };
CollectionAssert.AreEquivalent(expectedLines, lines);
}