{"provider_name":"Hatena Blog","version":"1.0","published":"2021-01-05 14:18:44","width":"100%","height":"190","blog_title":"Kashiwara0205","title":"Jest\u3092\u4f7f\u3063\u3066Class\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4e00\u90e8Mock\u5316\u3059\u308b\u65b9\u6cd5","categories":[],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftama-chan.hatenadiary.jp%2Fentry%2F2021%2F01%2F05%2F141844\" title=\"Jest\u3092\u4f7f\u3063\u3066Class\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4e00\u90e8Mock\u5316\u3059\u308b\u65b9\u6cd5 - Kashiwara0205\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"TAMA_CHAN","author_url":"https://blog.hatena.ne.jp/TAMA_CHAN/","url":"https://tama-chan.hatenadiary.jp/entry/2021/01/05/141844","image_url":null,"provider_url":"https://hatena.blog","type":"rich","blog_url":"https://tama-chan.hatenadiary.jp/","description":"\u6982\u8981 Jest\u3092\u4f7f\u3063\u3066Class\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4e00\u90e8Mock\u306b\u3057\u3066\u30c6\u30b9\u30c8\u3092\u56de\u3059\u65b9\u6cd5\u3092\u8a18\u8f09\u3057\u307e\u3059 \u7d50\u8ad6 prototype\u3092\u4f7f\u3044\u8a72\u5f53\u30e1\u30bd\u30c3\u30c9\u3092\u5bfe\u8c61\u306e\u30c6\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u306b\u3066jest.fn\u3067\u66f4\u65b0\u3057\u307e\u3059 // prototype\u3092\u4f7f\u7528\u3057\u3066\u30e1\u30bd\u30c3\u30c9\u3092mock\u306b\u66f4\u65b0 Class.prototype.method = jest.fn() // \u623b\u308a\u5024\u3082\u5b9a\u7fa9\u3057\u305f\u3044\u5834\u5408\u3001mockReturnValue\u3092\u4f7f\u7528\u3059\u308b Class.prototype.method = jest.fn().mockReturnValue(1) \u4f8b\u3048\u3070\u3001Member\u30af\u30e9\u30b9\u306egetName\u30e1\u30bd\u30c3\u30c9\u3092mock\u5316\u3059\u308b\u306a\u3089 Member.prototyp\u2026"}