public void GetLanguageEmptyTest()
{
RegExp regExp = new RegExp("a");
SortedSet <string> language = regExp.GetLanguage(0);
Assert.AreEqual(0, language.Count);
}
public void GetLanguageDotTest()
{
RegExp regExp = new RegExp("a").Dot(new RegExp("b"));
SortedSet <string> language = regExp.GetLanguage(2);
Assert.AreEqual(1, language.Count);
Assert.AreEqual("ab", language.ToList()[0]);
}
public void GetLanguagePlusTest()
{
RegExp regExp = new RegExp("a").Plus();
SortedSet <string> language = regExp.GetLanguage(2);
Assert.AreEqual(2, language.Count);
Assert.AreEqual("a", language.ToList()[0]);
Assert.AreEqual("aa", language.ToList()[1]);
}
public void GetLanguageStarTest()
{
RegExp regExp = new RegExp("a").Star();
SortedSet <string> language = regExp.GetLanguage(2);
Assert.AreEqual(3, language.Count);
Assert.AreEqual("", language.ToList()[0]);
Assert.AreEqual("a", language.ToList()[1]);
Assert.AreEqual("aa", language.ToList()[2]);
}