Add a few simple browser tests for the admin UI

Let’s get some quick functional tests around our admin pages and bundle-edit forms to catch regressions early. A handful of small specs should do it, here are some ideas:

Overview page

• Visit /admin/config/system/revision-manager
• Make sure each entity type (node, media, taxonomy term, block content, group, menu links) has its accordion with an “Enabled” checkbox and the plugin fieldsets underneath.

Show/hide plugins

• Check “Enabled” for nodes and verify the Amount/Age forms and bundle table appear.
• Uncheck it and ensure they hide again.

Bundle “Configure” link

• Click the dropbutton → “Configure” for the Page bundle.
• Confirm you land on /admin/structure/types/manage/page and see the Revision Manager accordion panel.

Bundle overrides stick

• On the Page edit form, enable a plugin and save.
• Check that the node_type.page config has a third-party setting and the overview now reads “Overridden.”

Enqueue now

• On the overview, enable a plugin, tick “Enqueue all entities now,” then save.
• Pull items from the revision_manager_remove_revisions queue and assert you got one per entity.

Global settings

• Flip “Log to watchdog” and “Disable auto-queue,” then save.
• Verify those settings land in revision_manager.settings.

Bundle-edit accordion

• For media types, vocabularies, block types, group types, and menus—visit their edit forms.
• Confirm the Revision Manager details show up under “Additional settings.”
• Toggle a plugin there, save, and verify it creates/removes the third-party override.

Form validation

• Enter an invalid value (e.g. negative or non-integer) into the “Minimum number of revisions to keep” field and assert you get a validation error.
• Leave the field blank and confirm it’s required.

Permission checks

• Log in as a user without administer revision_manager and assert the admin page returns 403.
• On a bundle edit form, confirm the Revision Manager section is hidden for that user.

Disable automatic queueing

• Enable a plugin but leave “Disable automatic queueing” checked in the global settings.
• Create a new revision on a node and assert that no item is added to the queue.

Bundle-edit enqueue shortcut

• On a bundle’s edit form (e.g. page type), check “Enqueue all entities now” and save.
• Assert the queue contains one item per existing entity of that bundle.

Default values & reset

• Visit the admin page on a fresh install and verify the plugin default values match the shipped defaults.
• Override a bundle, then revert to defaults (uncheck “Enabled”) and save; confirm the third-party setting is removed.