javascript-unit-testing-performance · Jest

Jest is running thousands of tests at Facebook at all times, either through continuous integration or invoked by engineers manually during development. This worked well for years even as the people working on Jest moved on to other projects within Facebook. As engineers added more and more tests though, we noticed the performance of Jest wasn't going to scale. Additionally, in the last year the Ja

[peccu]

ソースコードのフォントがいい感じ / Jest | "JavaScript Unit Testing Performance"

[efcl]

テストフレームワークのJestが実行時間を改善するためにやっていることについて

[teppeis]

Jestのパフォーマンスについて。FB内はmonorepoのため実行時間が重要。並列実行タスクの平準化、requireのinline化&遅延モック、社内リポジトリとOSSのシンク、など