public void Reconhece_Caractere_Invalido()
{
var element = new CharGrammarElement('a');
var extractor = TokenExtractor.FromString("A");
var token = element.Eval(extractor);
Assert.Null(token);
}
public void Reconhece_Caractere_Valido(char validChar)
{
var element = new CharGrammarElement(validChar);
var onCharString = new string(new[] { validChar });
var extractor = TokenExtractor.FromString(onCharString);
var token = element.Eval(extractor);
Assert.NotNull(token);
Assert.Equal(validChar, token.Content);
}
public void ListaChar_NaoPodeSerVazia()
{
var charList = new CharGrammarElement[] { };
var ex = Assert.Throws <ArgumentException>(
() => new CharListGrammarElement(charList)
);
Assert.Equal("list", ex.ParamName);
Assert.Equal(
"Argument list can not be empty",
ex.Message.Split(new char[] { '\r', '\n' })[0]
);
}
