As a product owner, I want the website to have end to end tests so that changes can be made quickly and safely

[johnboyes]

• When a change is made, the tests run against the new change (there is a danger that they may run against the previous version on a branch, unless I put in a safeguard, i.e. somehow detecting that the new version has been deployed)
• Tests run successfully against the master branch, too
• Test reports

[johnboyes]

I could have a Netlify function that ideally updates each commit with the deploy url. That would be perfect. Or it could just indicate that the deploy has happened successfully. Either way would want to make it a status check, and have CircleCI wait for it before running the tests.