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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119
5.4 Action Wrapper パターン
5.4.2
Action Wrapper
パターンの欠
Action Wrapper
パターンの最大の欠点は時間がかかることです。私たちは高速なビルド時間を
犠牲にして、安定したビルドを手に入れました。通常、これは良い取引です。
ビルド時間が劇的に増加するわけではありません。インテリジェントな遅延を適切に実装すること
で、ビルド時間は 10% から 20% 増えますが、テストの不安定さは 80% まで削減されます。
5.4.3
Action Wrapper
パターンを実する
Selenium
クラスで
Wrapper
パターンを使うことによって、テストアクションに機能を追加する
ことができます。［
Purchase
］ボタンのクリックは単なるクリックである必要はありません。もっ
とたくさんのことができるのです。アクションをラップすることで、どのボタンをクリックしても、
自動的に
Ajax
やアニメーションの完了を待たせることができます。さらには、テストが投げた例
外を捕捉して、その瞬間のページ全体のスクリーンショットを撮ってデバッグに役立てることもで
きます。
Wrapper パターンは Decorator パターンや Adapter パターンとも呼ばれ、特定のオブジェクト
をカプセル化することで、もともと設計した以上の機能を提供するのに使われるデザインパターン
です。たとえば、Selenium では
click
メソッドと
save_screenshot
メソッドは別のエンティティ ...
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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.