Songbird Global object creation property access
- Request the current artist, album and track title from the songbird
object.
- Attempt to set the value of current artist, it should fail. Because
the idl states that property as readonly the security check isn't
even performed and a warning is generated, try/catch blocks won't
catch the warning. If the property is not readonly but blocked by
the security mixin then you will get an exception and can try/catch
it.
- Get the current artist again to prove it hasn't been changed.