Bake cake in two round cake pans and set aside to cool. Make pudding pudding and set in the refrigerator to get cold. Cut one layer of cake into small chunks put into punch bowl. Spread half of pudding on top then add half of the pineapple and one package of strawberries. Slice one banana on top of half of the cool whip, spreading to cover completely. Repeat with an other layer the same way. Set in refrigerator overnight.