Add more authenticated end-to-end tests

[annieli555]

Context

Add additional baseline authenticated tests using the new authentication flow introduced in f464e74. Also adds some test helpers to create a new (empty) project, create an new (empty) character, and interact with Firestore.

The new tests include (as discussed in #195 (comment)):

• Ensuring that a project is saved to the (emulated) cloud after being edited
• Ensuring that a custom character is saved to the (emulated) cloud of being edited

I also added a test to verify that character references in projects are updated when a character name changes, as this was not tested when I added the feature in #817, due to authenticated tests not being supported at the time. But now it is supported!

Related issues

• Closes Support authenticated end to end tests #195

Verification

Checklist

• Verify tests pass in CI Investigate test timeout issue (this seems to be an existing bug, recent PRs are also encountering test timeouts)

[amyjko]

This is a great new set of tests! And much needed.

The timeout is curious. Maybe it's imposed on PR workflows run by people not collaborators on a project? The docs say that timeouts should be 60 minutes.

[annieli555]

Hi @amyjko ! Made a couple more updates to get tests passing, and the PR is now ready for review!

1. I realized that the tests were hanging on a prompt to enter an SMTP_PASSWORD (which I encountered locally as well), so I get around this by appending an empty SMTP_PASSWORD to the functions env file during setup.
2. I also saw that the test in project.spec.ts was failing. It turns out this recent commit added starter code to new projects, so the docs tile becomes collapsed (because of this check). This regression wasn't caught since tests were timing out from the problem described in 1.

Let me know if you'd like me to extract either of these changes into separate PRs! Also related to 2, I wonder if this is actually unintended behavior? It seems like the docs tile would still be helpful to see upon creating a new project.

[amyjko]

This is create. The new Firebase interactions are clean and clear, the updates to the fixtures are more robust, and most importantly, we now have some critical basic tests for project and character saving. I particularly appreciate the reuse of the Firestore libraries in the API to ensure robust and precise confirmation of document writes, rather than a flaky reliance on interface updates. I'm going to approve as is.