Improve test coverage

[colearendt]

We're up around 70%. Would love to get closer to 100%!

Some ideas:

• [ ] schedule.R
  • [ ] Particularly "display," which is time sensitive...
• [ ] variant.R
• [x] tag_page.R - or deprecate / move to rscpages
• [ ] lazy.R
• [ ] remote.R (needs LDAP CI... 😬 )
  • [ ] #156
• [ ] content.R
  • [ ] get_group_permission
  • [ ] content_delete_group
  • [ ] content_add_group
• [ ] browse.R - is this possible to test non-interactively...?

[brooklynbagel]

remote.R (needs LDAP CI... 😬 )

we can use https://github.com/osixia/docker-openldap if we need a easy to spin up ldap server