/// <summary>
/// Tries to Parse the <see cref="string"/> obtained by <paramref name="source"/> into
/// the <paramref name="parsedGroup"/>.
/// </summary>
/// <param name="source"></param>
/// <param name="parsedGroup"></param>
/// <returns></returns>
private bool TryVerifyParse(ParseStringCallback source, out GroupDescriptor parsedGroup)
{
parsedGroup = null;
var s = (source() ?? Empty).Trim();
OutputHelper.WriteLine($"Given: {s}");
/* I've taken the time to isolate a more helpful scaffold than the brute force
* creation up of assets, but this will work for verification purposes for now... */
using (var reader = new StringReader(s))
{
var charStream = new AntlrInputStream(reader);
var lexer = new CaseRegressionLexer(charStream);
var tokenStream = new CommonTokenStream(lexer);
var parser = new CaseRegressionParser(tokenStream);
// ReSharper disable once RedundantEmptyObjectOrCollectionInitializer
parser.AddErrorListener(new DefaultErrorListener {
});
// ReSharper disable once RedundantEmptyObjectOrCollectionInitializer
var listener = new CaseRegressionListener {
};
new ParseTreeWalker().Walk(listener, parser.start());
parsedGroup = listener.RootDescriptor;
}
return(parsedGroup != null);
}
/// <summary>
/// In my production code there is so much more going on, but the rule that has broken
/// is the Group Name rule.
/// </summary>
/// <param name="expectedGroup"></param>
/// <param name="actualGroup"></param>
protected override void VerifyGroupDescriptor(GroupDescriptor expectedGroup, GroupDescriptor actualGroup)
{
Assert.NotNull(actualGroup);
Assert.NotSame(expectedGroup, actualGroup);
Assert.Equal(expectedGroup.Name, actualGroup.Name);
}
protected abstract void VerifyGroupDescriptor(GroupDescriptor expectedGroup, GroupDescriptor actualGroup);
