{"categories":["tdd","ruby"],"description":"7\u7ae0\u3067\u5b9f\u65bd\u3057\u305f\u3053\u3068 \u540c\u3058\u91cf\u306eFranc\u3068Dollar\u3092\u6bd4\u8f03\u3057\u305f\u969b\u3001\u540c\u5024\u3068\u5224\u65ad\u3055\u308c\u306a\u3044\u3088\u3046\u4fee\u6b63 money.rb #!/usr/bin/ruby #coding: utf-8 # \u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\u5165\u95807\u7ae0 \u308a\u3093\u3054\u3068\u307f\u304b\u3093 class Money attr_accessor :amount protected :amount def ==(other) return @amount == other.amount && self.class == other.class end end class Dollar < Money def initialize(amount) @amount = amo\u2026","height":"190","author_name":"masasuz","width":"100%","type":"rich","blog_title":"\u76ee\u306e\u524d\u306b\u50d5\u3089\u306e\u9053\u304c\u3042\u308b","url":"https://masasuzu.hatenablog.jp/entry/20090723/1248351755","published":"2009-07-23 21:22:35","author_url":"https://blog.hatena.ne.jp/masasuz/","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmasasuzu.hatenablog.jp%2Fentry%2F20090723%2F1248351755\" title=\"\u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\u5165\u9580\u3092Ruby\u3067\u5199\u7d4c\u3057\u3066\u307f\u305f\u30027 - \u76ee\u306e\u524d\u306b\u50d5\u3089\u306e\u9053\u304c\u3042\u308b\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://masasuzu.hatenablog.jp/","image_url":null,"provider_url":"https://hatena.blog","provider_name":"Hatena Blog","title":"\u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\u5165\u9580\u3092Ruby\u3067\u5199\u7d4c\u3057\u3066\u307f\u305f\u30027"}