public void NormalUnifiedAndDefaultTest(string query, string[] eresult)
{
var us = new CssSelectorImpl();
var elements = us.Select(XElement.Parse(SAMPLE_HTML), query);
var result = elements.Select(_ => _.ToString()).ToArray();
CollectionAssert.AreEquivalent(eresult, result);
var ds = new DefaultSelector();
elements = ds.Select(XElement.Parse(SAMPLE_HTML), query);
result = elements.Select(_ => _.ToString()).ToArray();
CollectionAssert.AreEquivalent(eresult, result);
}