Support page.mainFrame().evaluateHandle('document')

[Bnaya]

Calls to page.mainFrame() and Element handles acquired by frames, are not instrumented

As in use in:
https://github.com/hoverinc/playwright-testing-library/blob/master/lib/index.ts#L147-L153

[gioragutt]

Copied for convenience.

export async function getDocument(_page?: Page): Promise<ElementHandle> {
  // @ts-ignore
  const page: Page = _page || this
  const documentHandle = await page.mainFrame().evaluateHandle('document')
  const document = documentHandle.asElement()
  if (!document) throw new Error('Could not find document')
  return document
}

@Bnaya How do you imagine this being instrumented? what would be the outcome?

[Bnaya]

I think that if we wrap mainFrame, frames and evaluateHandle can do
we need to make sure puppeteer and playwright compat
https://github.com/puppeteer/puppeteer/blob/3afe1935da5ee3b3a3ed8e910dd8dc280a0ae094/src/common/Page.ts
The important outcome would be to have the operations on the element handles recored, the calls to mainFrame/frames are not very interesting i think

[gioragutt]

Doesn't it mean we just have to add the method names here?

[Bnaya]

Yes, kinda :)

[gioragutt]

Oh and also, since you're using Frame#evaluateHandle, you'd have to add either text mapping and/or selector mapping, depending on what input it can get...