Setup: Add automated tests and then test setup interview

[plocket]

[After #147.] May break this out into separate issues. [Also, this is complicated by the fact that it creates pull requests and secrets and we somehow need to detect that and possibly delete those to clean up.]

Org/repo type

• Public org
• Public repo
• Private org
• Private repo

happy paths (and role/goal combos):

• is org_admin (admin permissions)
  • org secret
  • org secret + repo files
  • repo secret
  • repo secret + repo files
  • repo files (skips pages about being logging onto test account)
• is not org_admin (repo admin, maintain, and write permissions)
  • repo secret
  • repo secret + repo files
  • repo files (skips pages about being logged onto test account)

Should we also repeat tests on (when appropriate) org-owned repo vs. account owned repo?

Can't continue:

• goals page:
  • don't select any goals
  • wants to set up test files, but not have secrets
• All other pages all fields are required, so don't need testing

Different text/fields shown depending on choices:

Too many of these for my brain right now

Invalid input feedback error pages:

• da_url_error (set up tests)
  • invalid server part of url
  • invalid playground id
  • different url ends - extra args, page nums, just the plain url, only up till id
• github_token_error (all)
  • token is not associated with any account, basically
• github_pat_scopes_error (all)
  • not admin:org when want to set org secrets
  • not all scopes when want to set org secrets and add test files
  • not workflow and repo when want repo secret
  • not workflow and repo when want set up test
• github_repo_not_found_error (repo secrets, set up tests)
  • repo doesn't exist
• github_url_error (repo secrets, set up tests) (not sure how to test. partial url?)
  • does not have repo name
  • does not have owner name
• not_collaborator_error (repo secrets, set up tests)
  • not a collaborator
  • (TODO: not has write permissions)
• org_does_not_exist_error (org secrets)
  • owner name is not an org in github
• not_an_org_member_error (org secrets)
  • token user is not a member of org
• not_org_admin_error (org secrets)
  • token user is not an admin of org
• github_branch_name_error (all)
  • 21st branch name (then delete all branches, please. Dang. We should have one repo that is just for this already prepped with those branches.)
• permissions_error (all)
  • is 'read' or 'triage' permissions