Circulate: Edge Cases to Handle for Issue #672

edge_cases.md

Edge cases:

With and without holds:

• No filter, no category ✅
• "available" filter, no category, with and without a hold ✅
• No filter, with category: should show items with loan or a hold. ✅
• "available" filter, with category ✅

With and without loans, when it's an item with a borrow policy:

• No filter, no category ✅
• "available" filter, no category, with and without a loan ✅
• No filter, with category: should show items with loan or a hold. ✅
• "available" filter, with category ✅

With and without loans, when it's an item WITHOUT a borrow policy (i.e. infinite items):

• No filter, no category, item should be visible ✅
• "available" filter, no category, with and without a loan, item should be visible ✅
• No filter, with category: should show items with loan or a hold, item should be visible ✅
• "available" filter, with category, item should be visible ✅

In other words

With "available" filter, and it's not uniquely numbered: don't show the items that have a hold or a loan. With "available" filter, and it's not uniquely numbered, then always show the items, even if there's a hold or a loan.

Uncounted items:
  * Always show:

Counted items:
  Don't show the item on the inventory list when:
    * The item is not active (i.e. if the status is pending/maintenance/retired).
    * The category doesn't match the category the user is currently viewing.
    * There is a hold on the item.