test: add Wiktionary fixture loader helper

Append `gloss-test--load-wiktionary-fixture' to tests/testutil-gloss.el. It takes a fixture name (e.g. "anaphora") and returns the raw JSON body from tests/fixtures/wiktionary-NAME.json, or signals `error' with the full path when the file isn't there. The helper resolves the fixtures directory from a `defconst' captured at load time. That way it works the same whether a test file requires testutil-gloss directly or pulls it in transitively through `make test'.

Three ERT cases under tests/test-testutil-gloss--load-wiktionary-fixture.el cover Normal (anaphora loads as a non-empty JSON string), Boundary (the smallest fixture, 404, loads), and Error (a missing fixture raises with the path embedded in the message).

Verified with `make test': 35 passed, 0 unexpected.

0 files changed, 0 insertions, 0 deletions