public void IdsOf_Element_Returns_Ids()
{
PerfionXml xml = Parse(Examples.Example1);
PerfionXml.Component product = xml.Components("Product").FirstOrDefault(x => x.Id == 171458);
Assert.IsNotNull(product);
int[] ids = product.IdsOf("ExternalItemtext");
CollectionAssert.AreEqual(new[] { 308928, 310279, 308742 }, ids);
}
