public void Parse_Concurrency_ThrowsNodeConcurrencyException()
{
// Arrange
INodeFamily nodeFamily = new NodeFamily("family");
INode idle = new IdleNode(nodeFamily, null);
INode exactText = new ExactTextNode(
"foo",
new[] { WordTextClass.Instance, },
false,
(node, token, arg3) => { },
nodeFamily,
null);
INode someText = new TextNode(
new ITextClass[] { WordTextClass.Instance, },
null,
nodeFamily,
null);
idle.EstablishLink(someText);
idle.EstablishLink(exactText);
someText.EstablishLink(EndNode.Instance);
exactText.EstablishLink(EndNode.Instance);
IParser parser = new Parser();
var tokens = new List <IToken>
{
new TextToken(
WordTextClass.Instance,
NoneTextDecoration.Instance,
"foo",
Position.Zero,
3),
};
// Act
parser.Root = idle;
var ex = Assert.Throws <NodeConcurrencyException>(() => parser.Parse(tokens));
// Assert
Assert.That(ex.Message, Is.EqualTo("More than one node accepted the token."));
Assert.That(ex.ConcurrentNodes, Has.Length.EqualTo(2));
Assert.That(ex.ConcurrentNodes, Does.Contain(exactText));
Assert.That(ex.ConcurrentNodes, Does.Contain(someText));
Assert.That(ex.Token, Is.SameAs(tokens.Single()));
}
