New tag types must pass validate_subject_tag so edits are accepted.

When no callback param, should return plain JSON with application/json content-type.

When no binary MARC is listed in _filenames, the MARC XML should be fetched.

A book with no ratings gets a prior estimate (Bayesian default). This is a conservative middle-of-the-road rating, not zero.

No source file should use all three of is_admin(), is_librarian(), is_super_librarian() on the same line -- use is_librarian_or_higher() instead.

decorate_with_tags does nothing when Tag.find returns empty list.

If a year in birth or death date isn't an exact match, create a new record, other things being equal.

Test that normalize_input_seed rejects blank keys. Blank keys should raise a ValueError instead of being accepted and passed through

Test that a loan is not expired when expiry is in the future.

Test that a loan is not expired when there's no expiry date.

Test that a loan is not expired when status is waiting, regardless of expiry.

OCLC with OCLC: prefix.

Open Library ID (OLID).

Open Library ID with OLID: prefix.

Regression: a CommonMark hard break (trailing ``\\``) must render as a line break, not the literal text ``<br />``. The Tiptap WYSIWYG editor

Regression: a hard line break must not be glued onto a line that immediately precedes a markdown link-reference definition. LineBreaksPreproc

Test that the OpenAPI spec contains the /search.json endpoint.

Test that query parameters in the OpenAPI spec have descriptions. This test verifies that the descriptions we define in our Pydantic models

Specifically unit test the function that determines if a promise item should be overwritten.

Test validation errors for invalid pagination parameters.

Test pagination behavior for various query parameter combinations. The mock is configured to return a generic successful response; the focus

Test _parse_solr_editions_from_fastapi with various inputs.

Test _parse_solr_editions_from_web with various inputs.

Test that both implementations handle common cases the same way. Documents any behavioral differences between the two versions.

Verify details and jscmd query params are forwarded to dynlinks options.