setRecipeName("foo"); $recipe->setRecipeAuthor("bar"); $ingredient1 = new Ingredient("Ingredient 1"); $ingredient2 = new Ingredient("Ingredient 2"); $recipe->addIngredient($ingredient1); $recipe->addIngredient($ingredient2); $this->assertInstanceOf(Recipe::class, $recipe); $this->assertEquals("foo", $recipe->getRecipeName()); $this->assertEquals("bar", $recipe->getRecipeAuthor()); $this->assertEquals([$ingredient1, $ingredient2], $recipe->getIngredients()); } }