public void StartWith_GrammarWithUnresovedRules_ThrowsException()
{
var grammar = new AdHocGrammar();
grammar.Sequence("start", grammar.Ref("item"));
grammar.Invoking(g => g.StartWith("start")).Should().Throw <GrammarException>().Where(e => e.Id == GrammarExceptionId.GrammarContainsUnresolvedRule);
}
public void Grammar_WithoutStartRule_ThrowsExceptionOnStart()
{
var grammar = new AdHocGrammar();
grammar.TerminalType("A", "start");
grammar.Invoking(g => g.Start()).Should().Throw <GrammarException>().Where(e => e.Id == GrammarExceptionId.StartRuleNotDefined);
}
