public void Get_BasedOnCachedTest()
{
MockPropsA3_A2_A1();
var props = new CssPropertiesSet(_propsA1.Concat(_propsA3).ToArray());
_instance.Get("a2");
var result = _instance.Get("a3");
Assert.IsTrue(props.Equals(result));
Assert.AreEqual(3, _instance.Cache.Count);
Assert.AreNotSame(result, _instance.Cache["a3"]);
Assert.IsTrue(result.Equals(_instance.Cache["a3"]));
Assert.IsTrue(_instance.Cache.ContainsKey("a1"));
}