Shift+Arrows does not move the selection as expected

[edave64]

Reproduction example

https://codesandbox.io/s/quizzical-bas-ovqbr9?file=/src/App.test.js

Prerequisites

1. Have an input with any contents
2. Move so that it's not in the last position
3. Press ArrowRight with Shift held down on the Keyboard.

Expected behavior

Arrow movement with the shift key pressed should start a selection, where selection start != selection end.

Actual behavior

Both selection start and selection end move to the right, there is no selection.

User-event version

14.2.0

Environment

+-- @testing-library/dom@8.13.0
+-- @testing-library/jest-dom@5.16.4
+-- @testing-library/user-event@14.2.0
+-- jest-environment-jsdom@28.1.0

Additional context

No response

[ph-fritsche]

Thanks for opening an issue on this. It's one of our TODOs:

user-event/src/utils/focus/selection.ts

Lines 202 to 203 in 8215e2e

	export function moveSelection(node: Element, direction: -1 | 1) {
	// TODO: implement shift