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_RefAs_SetsRefNameOnRuleRef()
{
var grammar = new AdHocGrammar();
var ruleRef = grammar.Ref("test").As("handle");
ruleRef.RefName.Should().Be("handle");
((RuleRef <CstNode>)ruleRef).IsResolved.Should().BeFalse();
}
public void Grammar_ReferencingUndefinedRule_ReturnsUnresolvedRef()
{
var grammar = new AdHocGrammar();
var ruleRef = grammar.Ref("test");
ruleRef.Name.Should().BeNull();
((RuleRef <CstNode>)ruleRef).IsResolved.Should().BeFalse();
}
public void Grammar_RefReduceWith_SetsReducerOnRuleRef()
{
var grammar = new AdHocGrammar();
Reducer <CstNode> reducer = (IRule rule, INodeContext <CstNode> page) => EnumSequence.Of(new CstNode("Dummy", "Dummy"));
var ruleRef = grammar.Ref("test").ReduceWith(reducer);
ruleRef.Reducer.Should().Be(reducer);
((RuleRef <CstNode>)ruleRef).IsResolved.Should().BeFalse();
}