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jaredandClaude Sonnet 5 b41d5ee2aa
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feat(coverage): n_units_collected separates sampling from real zeros (#36)
provenance$coverage's n_units_reporting is category-conditional: it
counts governments with rows for the SPECIFIC requested category, which
conflates two different things -- a government never collected that
year (sampling), and one collected but genuinely spending nothing in
that category (a real zero). FY2012 Georgia Police is the motivating
case from the issue: a complete census year reads as a 69% "response
rate" because most of the gap is cities that contract policing to the
county sheriff, not non-response.

Adds a second counter, n_units_collected: how many of the caller's
expected cohort appear in the corpus that year for ANY category.
n_units_collected / n_units_expected is the true collection rate;
n_units_reporting / n_units_collected is category participation among
collected units. cog_geographic_rollup() and cog_peer_compare() both
carry it; cog_explain() prints it alongside n_units_reporting.

Two real bugs caught and fixed while finishing this (both against the
already-written, previously-uncommitted draft):

- .coverage_table()'s candidate list for the collection query was
  derived from the category-filtered result rows, not the caller's
  full expected cohort. A government with zero rows in the requested
  category across every requested year never appears in that result,
  so it was silently excluded from n_units_collected too -- collapsing
  the new counter back to the old, broken one for exactly the
  governments it exists to count. Fixed by threading an explicit
  `expected_ids` (all_govids / peer_govids) through instead.
- The collection query hardcoded long_view = "spending_long_harmonized",
  which does not exist on a corpus with schema_version < 5 (R/basis.R
  resolves basis = "raw" there; R/views.R only registers the
  harmonized views on v5+). cog_geographic_rollup()/cog_peer_compare()
  would hard-error on a corpus vintage the package otherwise explicitly
  supports. Fixed by deriving long_view from the basis cog_spending()
  actually resolved (prov$basis) via the existing .select_long_view()
  helper, matching how every other basis-aware query in the package
  already does this.

Also: cog_explain()'s general "complete census only in years ending in
2 or 7" footnote was gated on the OLD counter's absence, making it
permanently unreachable now that both callers always supply the new
one -- ungated it, since the explanation is orthogonal to which
counter set is present. Dropped a dead conditional branch, fixed two
stale roxygen blocks in R/peers.R/R/rollup.R still describing the old
two-counter model, fixed the same staleness in README.md, and switched
two `uscogdata:::` self-references to the package's own convention of
calling internal helpers unqualified.

1101 tests pass (2 skipped live-corpus), including new direct
regression tests for both bugs above (one exercising a government
collected-but-absent from a category result, one running the full
rollup/peer-compare path against a doctored schema_version 4 corpus).

Reviewed by an independent code-reviewer pass (1 HIGH, 1 MEDIUM, 3 LOW
-- all addressed above).

Closes #36.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-09 11:46:17 -04:00

135 lines
4.8 KiB
R

test_that("cog_explain prints verb header and target", {
skip_if_no_corpus()
r <- cog_spending("121011212191", 2020L, "Corrections")
# cli writes to stderr; capture both stdout and message streams.
txt <- paste(c(
capture.output(cog_explain(r)),
capture.output(cog_explain(r), type = "message")
), collapse = "\n")
expect_true(grepl("cog_spending", txt))
expect_true(grepl("Corrections", txt))
expect_true(grepl("121011212191", txt))
})
test_that("cog_explain format='list' returns structured provenance", {
skip_if_no_corpus()
r <- cog_spending("121011212191", 2020L, "Corrections")
prov <- cog_explain(r, format = "list")
expect_identical(prov, attr(r, "provenance"))
})
test_that("cog_explain returns result invisibly for chaining", {
skip_if_no_corpus()
r <- cog_spending("121011212191", 2020L, "Corrections")
res <- withVisible(cog_explain(r))
expect_false(res$visible)
expect_identical(res$value, r)
})
test_that("cog_explain errors on non-verb input", {
df <- tibble::tibble(a = 1)
expect_error(cog_explain(df), "provenance")
})
test_that("cog_explain prints basis + harmonization block", {
skip_if_no_corpus()
r <- cog_spending("121011212191", 2020L, "Corrections")
txt <- paste(c(
capture.output(cog_explain(r)),
capture.output(cog_explain(r), type = "message")
), collapse = "\n")
expect_true(grepl("Basis: harmonized", txt))
expect_true(grepl("Harmonization", txt))
expect_true(grepl("Excluded 0 row", txt))
})
test_that("cog_explain prints a Recipe section for recipe = results", {
skip_if_no_corpus()
r <- cog_spending("121011212191", c(2011L, 2012L), recipe = "corrections_combined")
txt <- paste(c(
capture.output(cog_explain(r)),
capture.output(cog_explain(r), type = "message")
), collapse = "\n")
expect_true(grepl("Recipe", txt))
expect_true(grepl("corrections_combined", txt))
expect_true(grepl("E04", txt))
expect_true(grepl("E05", txt))
})
test_that("cog_explain prints a Suggestions section when the provenance has one", {
skip_if_no_corpus()
r <- suppressMessages(
cog_spending("121011212191", c(2011L, 2012L), category = "Corrections")
)
txt <- paste(c(
capture.output(cog_explain(r)),
capture.output(cog_explain(r), type = "message")
), collapse = "\n")
expect_true(grepl("Suggestions", txt))
expect_true(grepl("corrections_combined", txt))
expect_true(grepl("re-run with recipe", txt))
})
test_that("cog_explain prints the expenditure concept (I1)", {
skip_if_no_corpus()
d <- cog_spending("010000226085", years = 2019, category = "Police")
t <- cog_spending("010000226085", years = 2019, category = "Police",
expenditure_concept = "total")
txt_d <- paste(c(
capture.output(cog_explain(d)),
capture.output(cog_explain(d), type = "message")
), collapse = "\n")
txt_t <- paste(c(
capture.output(cog_explain(t)),
capture.output(cog_explain(t), type = "message")
), collapse = "\n")
expect_true(grepl("Concept: primary", txt_d))
expect_true(grepl("Concept: total", txt_t))
})
test_that("cog_explain surfaces the C1(b) direct-suppressed flag as a warning", {
skip_if_no_corpus()
t <- suppressMessages(cog_spending(
"010000226085", years = 2011, category = "Corrections",
expenditure_concept = "total"
))
expect_true(attr(t, "provenance")$expenditure_concept_direct_suppressed)
txt <- paste(c(
capture.output(cog_explain(t)),
capture.output(cog_explain(t), type = "message")
), collapse = "\n")
expect_true(grepl("Direct leg unavailable", txt))
})
test_that("cog_explain prints denominator + popyear_range + counts", {
skip_if_no_corpus()
with_fixture_corpus({
r <- cog_spending("121011212191", years = 2019:2020,
category = "Police", per_capita = TRUE)
out <- paste(c(
capture.output(cog_explain(r)),
capture.output(cog_explain(r), type = "message")
), collapse = "\n")
expect_true(grepl("Census F-33", out))
expect_true(grepl("popyear", out, ignore.case = TRUE))
expect_true(grepl("census_f33", out))
# popyear_range should render as 4-digit calendar years, not raw 2-digit
expect_true(grepl("2019-2020", out))
expect_false(grepl("popyear range: 19-20", out, fixed = TRUE))
})
})
test_that("cog_explain reports units collected alongside units reporting (uscogdata#36)", {
skip_if_no_corpus()
wi <- cog_gov_search(name = NULL, state = "WI", type = "city")
roll <- suppressMessages(cog_geographic_rollup(
govids = list(city = wi$canonical_govid), category = "Police",
years = 2012L))
out <- paste(c(
capture.output(cog_explain(roll)),
capture.output(cog_explain(roll), type = "message")
), collapse = "\n")
expect_true(grepl("597 of 608 units collected", out, fixed = TRUE))
expect_true(grepl("485 reporting in this category", out, fixed = TRUE))
})