findByClassName(), findAllByClassName() throws "invalid locator" error

[wkeese]

Expected behavior

findAllByClassName() should return a list of elements.

Current behavior

It returns an "Invalid argument" error:

InvalidArgument: [POST http://.../elements / {"using":"class name","value":"usernameInput"}] invalid argument: invalid locator

Possible solution

I thought this was a bug in Edgium's driver, but after reading https://www.w3.org/TR/webdriver/#find-element and then https://www.w3.org/TR/webdriver/#dfn-table-of-location-strategies, it seems that "class name" is not a valid strategy.

You could easily convert a call of getAllByClassName("foo") to getAllByCssSelector(".foo").

Environment

Intern version: 4.5.0
Node version: 10.15.3
NPM version: 6.13.7
Browser version: MS Edge Chromium 80

[jason0x43]

Coincidentally, this came up for someone else yesterday with chromedriver. He's working on a pure webdriver tunnel (no Selenium), and findByClassName was failing there since chromedriver (mostly) follows strict W3C semantics. It seems that Selenium provides a fallback implementation for chromedriver to handle findByClassName, but apparently not for Edge Chromium driver.

[jason0x43]

This is related to #1105