protected virtual object VisitZeroOrOneBlock(ZeroOrOneBlock block)
{
return Visit(block.InnerBlock);
}
public void ParseTest7()
{
var parser = new RegexParser();
string pattern = "a?";
// Expected regular expression
var aBlock = new TextBlock("a");
var zeroOrOneBlock = new ZeroOrOneBlock(aBlock);
var groupBlock = new AndGroupBlock(new RegexBlock[] { zeroOrOneBlock });
var expected = new RegularExpression(groupBlock);
var actual = parser.Parse(pattern);
actual.ShouldBeEquivalentTo(expected, options => options.IncludingAllRuntimeProperties());
}
public IEnumerable<int> GetPositionsFromZeroOrOneBlock(int position, ZeroOrOneBlock block)
{
yield return position;
foreach (var nextPosition in GetPositions(position, block.InnerBlock))
{
yield return nextPosition;
}
}
public void GetPositionsFromZeroOrOneBlockTest()
{
int patternLength = 3;
var pattern = new string('\0', patternLength);
var builder = new Checker(pattern);
var textBlock = new TextBlock("a");
var zeroOrOneBlock = new ZeroOrOneBlock(textBlock);
var positions = builder.GetPositionsFromZeroOrOneBlock(0, zeroOrOneBlock).ToList();
CollectionAssert.AreEquivalent(new[] { 0, 1 }, positions);
}
public void ParseTest7()
{
var parser = new RegexParser();
string pattern = "a?";
// Expected regular expression
var aBlock = new TextBlock("a");
var zeroOrOneBlock = new ZeroOrOneBlock(aBlock);
var groupBlock = new AndGroupBlock(new RegexBlock[] { zeroOrOneBlock });
var expected = new RegularExpression(groupBlock);
var actual = parser.Parse(pattern);
Assert.IsTrue(expected.Equals(actual), "Pattern was parsed incorrectly");
}
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);
}