/** @license https://github.com/facebook/jest/blob/master/LICENSE */ // ダミー const fetchData = (callback) => callback("peanut butter"); // 実行しないでください! test.skip("the data is peanut butter", () => { function callback(data) { expect(data).toBe("peanut butter"); } fetchData(callback); }); test("the data is peanut butter", (done) => { function callback(data) { try { expect(data).toBe("peanut butter"); done(); } catch (error) { done(error); } } fetchData(callback); });