{"blog_title":"Engineering Tech Dojo","width":"100%","version":"1.0","height":"190","title":"RSpec\u306elet\u3068let!\uff1a\u9045\u5ef6\u8a55\u4fa1\u3068\u5373\u6642\u8a55\u4fa1\u306e\u9055\u3044\u3068\u4f7f\u3044\u5206\u3051","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.fun-toy-life.com%2Fentry%2F2026%2F05%2F28%2F082555\" title=\"RSpec\u306elet\u3068let!\uff1a\u9045\u5ef6\u8a55\u4fa1\u3068\u5373\u6642\u8a55\u4fa1\u306e\u9055\u3044\u3068\u4f7f\u3044\u5206\u3051 - Engineering Tech Dojo\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/plarail_hangout/","blog_url":"https://tech.fun-toy-life.com/","published":"2026-05-28 08:25:55","url":"https://tech.fun-toy-life.com/entry/2026/05/28/082555","categories":["Ruby","Rails"],"author_name":"plarail_hangout","type":"rich","description":"RSpec\u306elet\u3068let!\uff1a\u9045\u5ef6\u8a55\u4fa1\u3068\u5373\u6642\u8a55\u4fa1\u306e\u9055\u3044\u3068\u4f7f\u3044\u5206\u3051 \u306f\u3058\u3081\u306b RSpec\u3067\u983b\u7e41\u306b\u4f7f\u3046 let \u3068 let! \u306f\u3001\u3069\u3061\u3089\u3082\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306e\u30d8\u30eb\u30d1\u30fc\u3067\u3059\u3002\u3057\u304b\u3057\u8a55\u4fa1\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u7570\u306a\u308a\u3001\u4f7f\u3044\u65b9\u3092\u9593\u9055\u3048\u308b\u3068\u30c6\u30b9\u30c8\u304c\u610f\u56f3\u901a\u308a\u306b\u52d5\u304b\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f let \u306e\u9045\u5ef6\u8a55\u4fa1\u3068 let! \u306e\u5373\u6642\u8a55\u4fa1\u306e\u9055\u3044\u3092\u5177\u4f53\u4f8b\u3092\u4f7f\u3063\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 let \u2014 \u9045\u5ef6\u8a55\u4fa1 let \u3067\u5b9a\u7fa9\u3057\u305f\u30d6\u30ed\u30c3\u30af\u306f\u3001\u6700\u521d\u306b\u547c\u3070\u308c\u305f\u3068\u304d\u306b\u521d\u3081\u3066\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u30c6\u30b9\u30c8\u5185\u3067\u4e00\u5ea6\u3082\u4f7f\u308f\u308c\u306a\u3051\u308c\u3070\u3001\u30d6\u30ed\u30c3\u30af\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002 RSpec.describe User, type: :model do let(:u\u2026"}