はてなブックマーク - How does jest work inside? https://b.hatena.ne.jp/entry/s/medium.com/dailyjs/how-does-jest-work-929d0de0fa03 One of these days, I got myself thinking about the magic inside jest (our beloved JavaScript testing framework). How do the functions test, expect, mock, and spyOn work? I tried then to replicate i... Hiro_Matsuno https://b.hatena.ne.jp/Hiro_Matsuno/20200405#bookmark-4683793330198626306 2020-04-05T00:47:21Z mkusaka https://b.hatena.ne.jp/mkusaka/20200403#bookmark-4683793330198626306 2020-04-03T12:47:58Z makotot-riceball https://b.hatena.ne.jp/makotot-riceball/20200403#bookmark-4683793330198626306 2020-04-03T12:25:34Z javascript