September 2015
Beginner to intermediate
256 pages
5h 26m
Japanese
Content preview from Seleniumデザインパターン & ベストプラクティス
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29
2 章 Spaghetti パターン
これは本当に最悪の言い訳です。私たちはもはやコモドール 64 の時代に生きているのでは
ないのです。テストやコードを理解しやすくするのに 20 行追加する必要があれば、常に簡
潔さよりも冗長さを選ぶようにしましょう。
•
ースモークテストはその定義からして、高速かつ簡潔で、テ
ストデータのフットプリントをできるだけ小さく抑えなくてはなりません。本番環境に
ユーザを一人登録しておき、複数のテストでそのユーザを再利用するのは、良いプラク
ティスです。本番環境のデータベースをテストユーザでいっぱいにする必要はありません。
「8 章 テストスイートを成長させる」では、スモークテストを含む各種テストスイートにつ
いて、もっと詳しく説明します。
2.1.2
Spaghetti
パターンの欠
手っ取り早いのはさておき、
Spaghetti
パターンには欠点がたくさんあります。
•
ーあるテストの上に別のテストを構築することは、最初のうちは、
すばらしいアイデアのように思えます。結局のところ、これは手動でアプリケーションを
テストするときと同じやり方です。ところが、テスト自動化の場合、このやり方は長期的
な保守性で問題になります。そのため、これはアンチパターンだと見なされます。
•
アプリケーションの個々の部分の結合が密になればなるほど、お互い
の境界が区別できなくなります。密結合はコードの再利用を妨げ、コードの重複を引き起
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.