--test-name-pattern needing to come before filenames is hostile to npm scripts
まだ誰も着手していません。
- 主要言語
- JavaScript
- スター
- 122k
- フォーク
- 37.3k
- 平均マージ
- 4日 2時間
- マージ済み PR(30日)
- 283
説明
What is the problem this feature will solve?
It is common practice to set up npm scripts for testing. E.g.
{
"test": "node --test tests/*.js more-tests/*.js"
}
However, this cannot be combined with --test-name-pattern. Attempting to do so, e.g.
npm test -- --test-name-pattern="my pattern"
will not work, because this gets translated to
node --test tests/*.js more-tests/*.js --test-name-pattern="my pattern"
which, I believe, ends up passing --test-name-pattern="my pattern" as an argument to these test files, instead of passing it as an argument to the test runner. The correct invocation is
node --test-name-pattern="my pattern" --test tests/*.js more-tests/*.js
but this is impossible to do via npm scripts, it seems. (See alternatives considered.)
What is the feature you are proposing to solve the problem?
I don't know what a good solution to this would be. Some possible ideas:
-
Special-case command line processing such that when
--testis present,nodegrabs the--test-name-patternargument for itself instead of passing it to scripts? -
Introduce a new binary, e.g.
node_test, which processes command-line arguments in such a way? I believe this is how most test runners behave. -
Introduce a file-based customization of the test runner, including which tests to run, so that I don't have to pass the test filenames as arguments to the test runner in a way that causes this problem?
-
Improve npm scripts to support a better method of passing arguments in the middle of the script? (See below.)
What alternatives have you considered?
I investigated how to get npm scripts to substitute in arguments you pass to npm run into the script command, so that the translation becomes the correct one. This is a well-studied problem, and the following two Stack Overflow posts have the best answers, as far as I can tell:
None of them seem very satisfactory, unfortunately. In particular, if you want something that works cross-platform, you basically have to write a wrapper script.
As an alternative, I could continue using other test runners, which support npm scripts better.
コントリビューションガイド
はじめの一歩
- issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
- 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
- リポジトリをフォークし、ブランチを切って変更します。
- issue 番号を参照したプルリクエストを送ります。
調査の方向性
まず、--test-name-pattern を指定した npm test の呼び出しを再現し、そのオプションが --test とファイル名より前に置かれている動作するコマンドと比較します。--test と --test-name-pattern に対する Node のコマンドライン処理を調査します。完了には、この npm-script のユースケースをサポートする明確なアプローチが必要であり、おそらく引数の順序をカバーするテストも必要です。
索引モデルが issue の本文から書いたものです。
評価
- 技術スタック
- javascript, node.js
- 領域
- cli, testing-qa
- issue の種類
- 機能追加
- 難易度
- 5/5
- 見積もり時間
- 1週間以上
- 活発さ
- 停滞
- 明瞭さ
- 説明が足りない
- 初心者へのやさしさ
- 25/100