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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223
付録
B
Test::Unit
によるデータテスト
4
のデータ駆動テストでは、複数テストモデルと単一テストモデルの利点と欠点を述べてい
ますが、本書で使用している
Test::Unit
の
2.3.1
以降のデータ駆動テストの機能を使うと両者のメ
リットを享受できるようになります。
Test::Unit
ー
•
テストの対象や進捗が明確になる
•
テストの失敗が明確になる
•
重複が少ない
Test::Unit
のデータ駆動テストの機能を使ってみましょう。まず、
Test::Unit
の
gem
を最新化し
ます。
gem update Test::Unit
Test::Unit::TestCase
が提供する特異メソッド
data
を使って、
product_validation_test.rb
を次のように書き換えます。
224
付録 B Test::Unit によるデータ駆動テスト
B-1
data
は複数の形式で記述することができますが、ここでは既存のフィクスチャを再利用するた
めに、ブロックを使う方法を説明します。ブロックはテストデータを一意に表すキーとテストデー
タ自体を値とするハッシュを返すようにします。
data
の直後に書かれたメソッドにブロックが返
したハッシュの値が順に渡されます。この場合は、商品の数だけ ...
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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.