public void TestCommaInTagValue()
{
Tokenizer tokenizer = new Tokenizer(new ExpressionDictionary(), @"@book{ aaker:1912,
author = {Günther, C.W. and Van Der Aalst, W.M.P.}
}");
List<AbstractToken> tokens = tokenizer.GetAllTokens().ToList();
Assert.AreEqual(15, tokens.Count());
Assert.AreEqual(new At("@"), tokens[0]);
Assert.AreEqual(new Text("book", 1), tokens[1]);
Assert.AreEqual(new OpeningBrace("{", 5), tokens[2]);
Assert.AreEqual(new Text("aaker:1912", 6), tokens[3]);
Assert.AreEqual(new Comma(",", 17), tokens[4]);
Assert.AreEqual(new Text("author", 18), tokens[5]);
Assert.AreEqual(new Equals("=", 107), tokens[6]);
Assert.AreEqual(new OpeningBrace(" {", 108), tokens[7]);
Assert.AreEqual(new Text("Günther", 110), tokens[8]);
Assert.AreEqual(new Comma(",", 117), tokens[9]);
Assert.AreEqual(new Text("C.W. and Van Der Aalst", 118), tokens[10]);
Assert.AreEqual(new Comma(",", 141), tokens[11]);
Assert.AreEqual(new Text("W.M.P.", 142), tokens[12]);
Assert.AreEqual(new ClosingBrace("}", 149), tokens[13]);
Assert.AreEqual(new ClosingBrace("}", 150), tokens[14]);
}