{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.fun-toy-life.com%2Fentry%2F2026%2F05%2F29%2F225938\" title=\"RSpec\u306elet_it_be\uff1atest-prof\u3067\u9ad8\u901f\u5316\u3059\u308bDB\u751f\u6210\u306e\u4f7f\u3044\u65b9 - 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>","image_url":null,"blog_title":"Engineering Tech Dojo","width":"100%","categories":["Ruby","Rails"],"published":"2026-05-29 22:59:38","title":"RSpec\u306elet_it_be\uff1atest-prof\u3067\u9ad8\u901f\u5316\u3059\u308bDB\u751f\u6210\u306e\u4f7f\u3044\u65b9","provider_name":"Hatena Blog","blog_url":"https://tech.fun-toy-life.com/","provider_url":"https://hatena.blog","version":"1.0","height":"190","author_name":"plarail_hangout","author_url":"https://blog.hatena.ne.jp/plarail_hangout/","description":"RSpec\u306elet_it_be\uff1atest-prof\u3067\u9ad8\u901f\u5316\u3059\u308bDB\u751f\u6210\u306e\u4f7f\u3044\u65b9 \u306f\u3058\u3081\u306b RSpec\u306e\u30c6\u30b9\u30c8\u3067DB\u3078\u306e\u30ec\u30b3\u30fc\u30c9\u751f\u6210\u304c\u591a\u304f\u306a\u308b\u3068\u3001let! \u306e\u7e70\u308a\u8fd4\u3057\u5b9f\u884c\u304c\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306b\u306a\u308a\u307e\u3059\u3002let_it_be \u306f test-prof gem\u304c\u63d0\u4f9b\u3059\u308b\u30d8\u30eb\u30d1\u30fc\u3067\u3001\u540c\u3058example group\u5185\u3067\u30ec\u30b3\u30fc\u30c9\u30921\u56de\u3060\u3051\u751f\u6210\u3057\u3066\u30c6\u30b9\u30c8\u3092\u9ad8\u901f\u5316\u3067\u304d\u307e\u3059\u3002 let! \u306e\u4f55\u304c\u9045\u3044\u304b let! \u306f\u5404 it \u306e\u524d\u306b\u6bce\u56de\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002 RSpec.describe Post, type: :model do let!(:user) { create(:user) } # \u5404it\u306e\u524d\u306b\u5b9f\u884c let!(:cate\u2026","type":"rich","url":"https://tech.fun-toy-life.com/entry/2026/05/29/225938"}