Findings F-1..F-8. Every assertion below was verified to FAIL before its
fix (or under mutation, where the behaviour already worked) and pass after.
F-3: 'an unknown recipe id is rejected' used a bare expect_error(). Deleting
.validate_recipe_id() leaves .recipe_components() returning 0 rows and
comps$label[[1]] throwing 'subscript out of bounds' -- still an error, so
the test passed on the regression while the user lost the curated message.
Now asserts class = 'uscogdata_unknown_recipe'. Mutation-checked.
F-4: no test ever set per_capita and adjust_to_year together, so the
load-bearing ordering comment at R/balances.R was unverified. Reversing
those two calls silently drops amt_per_capita_real (.attach_real_dollars()
no-ops when amt_per_capita_nominal does not exist yet). New test asserts
presence AND that the per-capita column is deflated by the same factor as
the level column; mutation-checked by reversing the order (2 failures).
F-5: the spec's 'Gating' requirement had no test -- nothing ever called
cog_balances() on a corpus without balance_subtype. Extended the existing
with_corpus_missing_balance_subtype() block to assert class =
'uscogdata_no_balance_support'; mutation-checked by dropping the guard.
F-1/F-2: added mutual-exclusivity and four-argument validation tests, each
pinned to the message or class (all four inputs already produced *some*
error or *some* quiet wrong answer, so bare expect_error() was useless
here). Plus an ordering guard: a data-frame govid must still work, which
is what fails if validation is put before .coerce_govid_input().
F-6: asserts on the RENDERED cog_explain() text (both streams -- cli
routes through conditions that land on stderr), with a negative case
proving money-verb output is unaffected and that the capture is not vacuous.
F-7: pins that coverage_window is corpus-scoped while truncated is
query-scoped; mutation-checked by scoping the windows to observed subtypes.
F-8: pins the memo slot is populated on first call and cleared by
cog_close().
jared
fde62eb6cc