public void ShouldNotAccept()
{
CharacterRange predicate;
predicate = Parse.CharacterRange('a', 'z');
Assert.IsFalse(predicate.Accept('1'));
}
public void ShouldConvertToString()
{
IPredicate predicate;
predicate = Parse.CharacterRange('a', 'z');
Assert.AreEqual("[a-z]", predicate.ToString());
}
public void ShouldReadAndSeek()
{
ICharReader reader;
ILexer lexer;
Rule letter, word;
TokenMatch tokenMatch;
reader = new MockedCharReader("abcde");
word = new Rule("Word", Parse.Characters("abcdef"));
letter = new Rule("Letter", Parse.CharacterRange('a', 'z'));
lexer = new Lexer(word, letter);
tokenMatch = lexer.Read(reader);
Assert.AreEqual("Letter", tokenMatch.Token.Class);
Assert.AreEqual("a", tokenMatch.Token.Value);
tokenMatch = lexer.Read(reader);
Assert.AreEqual("Letter", tokenMatch.Token.Class);
Assert.AreEqual("b", tokenMatch.Token.Value);
tokenMatch = lexer.Read(reader);
Assert.AreEqual("Letter", tokenMatch.Token.Class);
Assert.AreEqual("c", tokenMatch.Token.Value);
tokenMatch = lexer.Read(reader);
Assert.AreEqual("Letter", tokenMatch.Token.Class);
Assert.AreEqual("d", tokenMatch.Token.Value);
tokenMatch = lexer.Read(reader);
Assert.AreEqual("Letter", tokenMatch.Token.Class);
Assert.AreEqual("e", tokenMatch.Token.Value);
}
public void ShouldCreateCharacterRangePredicate()
{
ICharacterRange predicate;
predicate = Parse.CharacterRange('a', 'z');
Assert.IsNotNull(predicate);
Assert.AreEqual('a', predicate.FirstValue);
Assert.AreEqual('z', predicate.LastValue);
}
public void ShouldAccept()
{
CharacterRange predicate;
predicate = Parse.CharacterRange('a', 'z');
Assert.IsTrue(predicate.Accept('a'));
Assert.IsTrue(predicate.Accept('b'));
Assert.IsTrue(predicate.Accept('c'));
Assert.IsTrue(predicate.Accept('z'));
}
