Test case:
Native + Banner, Multi-size(240x400, 300x600), GDN creative (Square Image)
Expected:
Creative: Native (ContentAd) [240x400],
Banner [240x400 / 300x600]
Presentation: P307
Native + Banner, Multi-size(240x400, 300x600), GDN creative (Square Image)
Expected:
Creative: Native (ContentAd) [240x400],
Banner [240x400 / 300x600]
Presentation: P307