Small error in test file

[tequila99]

Hello everyone

I noticed a small mistake in index.test.js. Maybe it doesn't matter anymore, but I decided to open the issue.

In this code:

const keyup2 = createEvent('keyup')
keydown2.key = 'g'
document.dispatchEvent(keyup2)

keyup2.key = 'g' should be here, I think