Added some simple test scaffolding

[janechu]

Pull Request

📖 Description

This adds a simple binding, per #7037 to facilitate playwright testing.

👩‍💻 Reviewer Notes

This is some simple scaffolding, no code we intend to ship is in here but this will make future PRs cleaner as they won't include unrelated changes.

✅ Checklist

General

• I have included a change request file using $ npm run change
• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.