This repo explores the possibility that Vue Test Utils (VTU) contains a bug that does not allow tests passing successfully, when using Vue Js h() render function and withKeys.
The repo contains two parts: the first part is the functionality itself, i.e., by running npm run serve:universal an application launches where the user can enter keyboard characters in a form input. When the user presses other key than Escape (Keyboard event with key = "Escape"), the text "You did not press the Esc key" is displayed. If the user does press Escape, the text reads "You just pressed the Esc key".
The second part is a VTU test that attempt to test exactly that functionality. npm run test runs the test.
Some recommendations has been done by VTU members to make the test pass, e.g., see this comment. The problem is that if those changes are applied, the test passes, however the component does not work any more.
The expected behavior is to have both functionality (part one: npm run serve:universal) and test passing (part two: npm run test) successfully executed.
Special attention has to be taken when changing line 40 in HelloWorld.js since replacing escape by Escape breaks the functionality. The same situation in line 31 in HelloWorld.js: replacing Escape by escape breaks the component (an issue with Vue Js?).
Solution thanks to @cexbrayat:
await wrapper.get(spanWithKeys).trigger('keyup.Escape');