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uscogdata/tests/testthat/test-balances.R
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R

test_that("balance views register and carry only balance codes", {
skip_if_no_corpus()
con <- cog_open()
on.exit(cog_close())
views <- DBI::dbGetQuery(con,
"SELECT table_name FROM information_schema.tables
WHERE table_schema = 'main' AND table_type = 'VIEW'"
)$table_name
expect_true(all(c("balance_long", "balance_annotated") %in% views))
# Every item_code in balance_long is a category_type = 'balance' member.
leak <- DBI::dbGetQuery(con,
"SELECT COUNT(*) AS n FROM balance_long
WHERE item_code NOT IN (
SELECT item_code FROM summary_categories WHERE category_type = 'balance')"
)$n
expect_identical(as.integer(leak), 0L)
# balance_annotated exposes the subtype column the verb groups on.
cols <- DBI::dbGetQuery(con,
"SELECT column_name FROM information_schema.columns
WHERE table_name = 'balance_annotated'"
)$column_name
expect_true(all(c("category", "category_type", "balance_subtype") %in% cols))
})
test_that("inst/sql/26-balance_long.sql enforces NOT is_aggregate (real SQL text, synthetic parquet)", {
# Every category_type = 'balance' item_code in the bundled fixture has
# is_aggregate = FALSE for every row of every year -- there is no real row
# that would be excluded ONLY by the `AND NOT is_aggregate` predicate. An
# assertion against the live fixture (`WHERE is_aggregate` returns 0) is
# therefore vacuous: it passes identically whether or not the view's
# predicate is present. As with the 22-/23- and 24-/25- tests above, this
# reads the real inst/sql/26-balance_long.sql text off disk and executes it
# -- plus its 10-long.sql / 11-summary_categories.sql dependencies -- against
# a synthetic hive-partitioned parquet tree that DOES contain an aggregate
# row under a real balance item_code (W01), so a regression that drops the
# predicate changes which rows survive.
skip_if_no_corpus()
tmp <- withr::local_tempdir()
part_dir <- file.path(tmp, "data", "long", "year=2004")
dir.create(part_dir, recursive = TRUE)
part_path <- file.path(part_dir, "part-0.parquet")
write_con <- DBI::dbConnect(duckdb::duckdb())
on.exit(DBI::dbDisconnect(write_con, shutdown = TRUE), add = TRUE)
DBI::dbExecute(write_con, sprintf("
COPY (
SELECT * FROM (VALUES
('bal-A', 'W01', 100, false), -- control: ordinary balance row, survives
('bal-B', 'W01', 999999, true) -- excluded ONLY by `NOT is_aggregate`
) AS t(canonical_govid, item_code, amt, is_aggregate)
) TO %s (FORMAT PARQUET)
", uscogdata:::.sql_lit_chr(part_path)))
DBI::dbExecute(write_con, sprintf("
COPY (
SELECT * FROM (VALUES
('W01', 'Fund Balances', 'balance', NULL, NULL, 'general')
) AS t(item_code, category, category_type, spend_subtype, revenue_subtype, balance_subtype)
) TO %s (FORMAT PARQUET)
", uscogdata:::.sql_lit_chr(file.path(tmp, "data", "summary_categories.parquet"))))
sql_dir <- system.file("sql", package = "uscogdata")
.read_view_sql <- function(filename) {
txt <- paste(readLines(file.path(sql_dir, filename), warn = FALSE), collapse = "\n")
gsub("\\{url\\}", paste0(tmp, "/"), txt, fixed = FALSE)
}
con <- DBI::dbConnect(duckdb::duckdb())
on.exit(DBI::dbDisconnect(con, shutdown = TRUE), add = TRUE)
DBI::dbExecute(con, .read_view_sql("10-long.sql"))
DBI::dbExecute(con, .read_view_sql("11-summary_categories.sql"))
DBI::dbExecute(con, .read_view_sql("26-balance_long.sql"))
rows <- DBI::dbGetQuery(con,
"SELECT canonical_govid, item_code, amt FROM balance_long ORDER BY canonical_govid"
)
expect_equal(nrow(rows), 1L)
expect_equal(rows$canonical_govid, "bal-A")
expect_equal(rows$amt, 100)
})
test_that("balance views are skipped on a corpus without balance_subtype", {
skip_if_no_corpus()
with_corpus_missing_balance_subtype({
con <- cog_open()
on.exit(cog_close())
views <- DBI::dbGetQuery(con,
"SELECT table_name FROM information_schema.tables
WHERE table_schema = 'main' AND table_type = 'VIEW'"
)$table_name
# Registration must SKIP them, not error -- an older corpus stays usable.
expect_false(any(c("balance_long", "balance_annotated") %in% views))
expect_true("revenue_long" %in% views)
})
})
test_that("cog_balances returns holdings for a government that has them", {
skip_if_no_corpus()
with_fixture_corpus({
r <- cog_balances("550000227544", 2019)
expect_s3_class(r, "tbl_df")
expect_true(nrow(r) > 0L)
expect_true(all(c("year", "canonical_govid", "gov_name", "balance_subtype",
"category", "amt_nominal") %in% names(r)))
expect_identical(sort(unique(r$category)),
c("Fund Balances", "Insurance Trust Balances"))
expect_false(is.null(attr(r, "provenance")))
expect_identical(attr(r, "provenance")$verb, "cog_balances")
})
})
test_that('category = "Fund Balances" is exactly the general family', {
skip_if_no_corpus()
with_fixture_corpus({
r <- cog_balances("550000227544", 2019, category = "Fund Balances")
expect_identical(unique(r$balance_subtype), "general")
codes <- sort(unlist(strsplit(paste(r$codes_included, collapse = ","), ",")))
expect_identical(codes, c("W01", "W31", "W61"))
})
})
test_that("no flow code can reach cog_balances", {
skip_if_no_corpus()
with_fixture_corpus({
r <- cog_balances("550000227544", c(2011, 2012, 2019, 2020))
got <- unique(unlist(strsplit(paste(r$codes_included, collapse = ","), ",")))
# The expected set is read from the RAW corpus, never from the verb --
# verifying an absence through the filter that creates it proves nothing.
# A fresh, direct DuckDB connection against the raw parquet files (never
# cog_open()'s session, never balance_long/balance_annotated) reads
# parquet natively -- no arrow dependency needed (see CLAUDE.md).
con2 <- DBI::dbConnect(duckdb::duckdb())
on.exit(DBI::dbDisconnect(con2, shutdown = TRUE), add = TRUE)
cats_path <- file.path(fixture_corpus_path(), "data", "summary_categories.parquet")
balance_codes <- DBI::dbGetQuery(con2, sprintf(
"SELECT item_code FROM read_parquet(%s) WHERE category_type = 'balance'",
uscogdata:::.sql_lit_chr(cats_path)
))$item_code
expect_true(length(got) > 0L)
expect_true(all(got %in% balance_codes))
})
})
test_that("every balance_subtype maps to exactly one category", {
skip_if_no_corpus()
# Dropping the `subtype` argument is only safe while this tree holds. If the
# pipeline ever gives a balance subtype a second category, `category` becomes
# a lossy filter -- fail HERE rather than in a user's analysis. Read via a
# fresh direct DuckDB connection against the raw parquet file, not through
# any registered view.
con2 <- DBI::dbConnect(duckdb::duckdb())
on.exit(DBI::dbDisconnect(con2, shutdown = TRUE), add = TRUE)
cats_path <- file.path(fixture_corpus_path(), "data", "summary_categories.parquet")
b <- DBI::dbGetQuery(con2, sprintf(
"SELECT category, balance_subtype FROM read_parquet(%s) WHERE category_type = 'balance'",
uscogdata:::.sql_lit_chr(cats_path)
))
per_subtype <- tapply(b$category, b$balance_subtype,
function(x) length(unique(x)))
expect_true(all(per_subtype == 1L))
})
test_that("cog_balances records found + missing govids in provenance", {
skip_if_no_corpus()
with_fixture_corpus({
suppressMessages(
r <- cog_balances(c("550000227544", "XXXINVALID"), 2019)
)
prov <- attr(r, "provenance")
expect_equal(sort(prov$scope$govids_found), "550000227544")
expect_equal(sort(prov$scope$govids_missing), "XXXINVALID")
})
})
test_that("per_capita divides holdings by population", {
skip_if_no_corpus()
with_fixture_corpus({
plain <- cog_balances("550000227544", 2019, category = "Fund Balances")
pc <- cog_balances("550000227544", 2019, category = "Fund Balances",
per_capita = TRUE)
expect_true("amt_per_capita_nominal" %in% names(pc))
expect_true("pop_source" %in% names(pc))
expect_identical(pc$amt_nominal, plain$amt_nominal)
# Assert against the denominator read from the corpus, NOT against a
# quantity derived from amt_per_capita_nominal itself -- dividing the
# column back out would be tautological and would pass on any value.
pop <- DBI::dbGetQuery(cog_open(), sprintf(
"SELECT population FROM gov_population_yearly
WHERE canonical_govid = %s AND year = 2019",
uscogdata:::.sql_lit_chr("550000227544")
))$population
expect_length(pop, 1L)
expect_equal(pc$amt_per_capita_nominal, pc$amt_nominal / pop,
tolerance = 1e-8)
prov <- attr(pc, "provenance")
expect_true(prov$transformations$per_capita$applied)
})
})
test_that("adjust_to_year adds real dollars", {
skip_if_no_corpus()
with_fixture_corpus({
r <- cog_balances("550000227544", 2012, category = "Fund Balances",
adjust_to_year = 2020)
expect_true("amt_real" %in% names(r))
# 2012 dollars inflated to 2020 must exceed nominal.
expect_true(all(r$amt_real > r$amt_nominal))
prov <- attr(r, "provenance")
expect_true(prov$transformations$inflation$applied)
expect_identical(prov$transformations$inflation$base_year, 2020L)
})
})
# --- recipe = : the wide-era holdings bridge -------------------------------
test_that("recipe bridges the wide era into the modern one", {
skip_if_no_corpus()
with_fixture_corpus({
r <- cog_balances("550000227544", c(2011, 2012),
recipe = "cash_securities_z77_wide")
# .run_recipe()'s SQL returns `long.year` as a DOUBLE (a corpus-wide trait,
# not specific to this recipe -- see the money-verb recipe tests, which
# only ever assert on it with expect_equal), so compare numerically rather
# than with expect_identical()'s type-strict comparison.
expect_equal(sort(r$year), c(2011, 2012))
# The 2011 leg can ONLY come from X40, which is 100% is_aggregate = TRUE
# and therefore invisible to balance_long. If the recipe path ever starts
# filtering aggregates, a 45-year series silently truncates to five --
# this is the regression guard for phase_r_harmonization_review.md § 0.2.
codes <- attr(r, "provenance")$codes_summed$observed
expect_true("X40" %in% codes)
expect_true("Z77" %in% codes)
expect_true(all(r$amt_nominal > 0))
prov <- attr(r, "provenance")
expect_identical(prov$recipe$recipe_id, "cash_securities_z77_wide")
})
})
test_that("the FY2002 book-to-market basis change is disclosed on the recipe path", {
skip_if_no_corpus()
with_fixture_corpus({
# 2002 is in the year vector deliberately, and must stay -- do not
# "simplify" this back to c(2011, 2012).
#
# .build_series_break_refs() (R/series_breaks.R, shared with every verb)
# matches breaks with `break_year BETWEEN min(years) AND max(years)`, and
# SB195's break_year is 2002. A c(2011, 2012) span never crosses the
# FY2002 book -> market change -- that whole span sits after it, on one
# consistent basis -- so NOT disclosing SB195 there is correct behaviour,
# not a gap (same reasoning as the "a request that never crosses the
# boundary is not affected by it" comment on .build_corpus_break_refs()).
#
# The property actually worth testing is: a recipe query that observes
# X40 AND spans FY2002 discloses SB195. This fixture has no 2002
# partition data for X40/Z77 (confirmed: only 2011/2012/2019/2020
# partitions exist), so including 2002 in `years` widens the
# break-matching window without changing which rows the recipe join
# returns -- verified empirically: r$year below is exactly {2011, 2012}
# whether or not 2002 is in the request (see task-4-report.md).
# Removing 2002 would silently turn this back into the non-crossing case
# above and destroy the test's purpose.
r <- cog_balances("550000227544", c(2002, 2011, 2012),
recipe = "cash_securities_z77_wide")
expect_equal(sort(r$year), c(2011, 2012))
refs <- attr(r, "provenance")$series_break_refs
# SB195 sits on fin_code X40; it can only fire where X40 is observed,
# which is exactly the recipe path.
expect_true("SB195" %in% refs)
})
})
test_that("the second holdings bridge works too", {
skip_if_no_corpus()
with_fixture_corpus({
# X41 -> Z78, the securities counterpart. Wisconsin carries X41 in 2011
# and Z78 in 2012, so both legs are exercised.
r <- cog_balances("550000227544", c(2011, 2012),
recipe = "cash_securities_z78_wide")
codes <- attr(r, "provenance")$codes_summed$observed
expect_true(all(c("X41", "Z78") %in% codes))
expect_equal(sort(r$year), c(2011, 2012))
})
})
test_that("an unknown recipe id is rejected", {
skip_if_no_corpus()
with_fixture_corpus({
expect_error(cog_balances("550000227544", 2019, recipe = "no_such_recipe"))
})
})