Playwright: Make a real domain mapping e2e test

[dpasque]

Details

The old domain mapping script wp-manage-domains__map-a-domain-spec.js does not actually map a domain, it just goes to that page and enters a domain name.

We should migrate that script to a script that actually creates a domain mapping.

Here's my proposal of how this could work:

• Use a different user than the default user so that we don't mess up any domain purchasing flows running on that user
• Navigate to adding a domain mapping by URL so we aren't tripped up by the changing domain screen that changes based on whether a domain is mapped or not (protect against concurrency)
• Map a unique subdomain of example.com such as <date+random number>.example.com. This domain will always exist, avoiding the triggering of the purchasing flow, but will meaningless as it is reserved by IANA
• Make sure the mapping shows up in domains
• Delete that mapping

Checklist

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Related

No response

[worldomonation]

I'd imagine this would be run as part of the calypso-release suite. There's just too many moving parts to this that would cause concurrency issues otherwise IMO.

[dpasque]

More discussion on the future of this task here: pcYYhz-mb-p2

[worldomonation]

P2 for context: pcYYhz-mb-p2