def METHOD_NAME(self):
    self.assertEqual(
        [
            "250g self-raising flour",
            "25g cocoa powder",
            "175g light muscovado sugar",
            "85g unsalted butter , melted",
            "5 tbsp vegetable or sunflower oil",
            "150g pot fat-free natural yogurt",
            "1 tsp vanilla extract",
            "3 large eggs",
            "85g unsalted butter , softened",
            "1 tbsp milk",
            "½ tsp vanilla extract",
            "200g icing sugar , sifted",
            "food colourings (optional)",
            "sweets and sprinkles, to decorate",
        ],
        self.harvester_class.ingredients(),
    )