protected static void ClassCleanup()
 {
     Combiner = null;
     Changer  = null;
     Tagger?.Dispose();
     Tagger = null;
 }
        protected static void ClassInitialize(TestContext context)
        {
            var dir     = Path.GetDirectoryName(typeof(BaseClass).Assembly.Location);
            var dic_dir = Path.Combine(dir, "UniDic-CWJ");

            Tagger = Tagger <WNode> .Create(() => new WNode(), dic_dir);

            Changer  = new LanguageStyleChanger(Tagger);
            Combiner = new TokenCombiner <WNode>(n => n.Surface, n => n.RLength != n.Length);
        }