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rose-ash/lib/mod/tests/offenders.sx
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Test, Build, and Deploy / test-build-deploy (push) Failing after 1m13s
mod: Ext 7 — repeat-offender escalation (audit log as evidence), 223/223
mod/subject-sanctions counts prior hide/remove/ban decisions about a subject from
the append-only audit log; mod/decide-escalating upgrades a sanction to :ban when
the subject has >= k priors. Non-sanction outcomes (keep/escalate) pass through.
Closes the loop between audit and policy — the trail feeds future decisions. Own
suite. +19 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 18:29:36 +00:00

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;; lib/mod/tests/offenders.sx — Ext 7: repeat-offender escalation.
(define mod-off-count 0)
(define mod-off-pass 0)
(define mod-off-fail 0)
(define mod-off-failures (list))
(define
mod-off-test!
(fn
(name got expected)
(begin
(set! mod-off-count (+ mod-off-count 1))
(if
(= got expected)
(set! mod-off-pass (+ mod-off-pass 1))
(begin
(set! mod-off-fail (+ mod-off-fail 1))
(append!
mod-off-failures
(str name "\n expected: " expected "\n got: " got)))))))
;; ── sanction? predicate ──
(mod-off-test! "hide is a sanction" (mod/sanction? "hide") true)
(mod-off-test! "remove is a sanction" (mod/sanction? "remove") true)
(mod-off-test! "ban is a sanction" (mod/sanction? "ban") true)
(mod-off-test! "keep is not a sanction" (mod/sanction? "keep") false)
(mod-off-test! "escalate is not a sanction" (mod/sanction? "escalate") false)
;; ── repeat-offender escalation over the audit log ──
(mod/reset!)
(mod/report "u1" "spammer" "this is spam")
(mod/report "u2" "spammer" "buy now offer")
(mod/report "u3" "spammer" "click here free money")
(mod/report "u4" "innocent" "fine post")
(mod-off-test!
"no sanctions before any decision"
(mod/subject-sanctions "spammer")
0)
(define mod-off-d1 (mod/decide-escalating "r1" 2))
(mod-off-test!
"first spam → hide (0 priors)"
(get mod-off-d1 :action)
"hide")
(mod-off-test!
"one sanction recorded"
(mod/subject-sanctions "spammer")
1)
(define mod-off-d2 (mod/decide-escalating "r2" 2))
(mod-off-test!
"second spam → hide (1 prior, below k=2)"
(get mod-off-d2 :action)
"hide")
(mod-off-test!
"two sanctions recorded"
(mod/subject-sanctions "spammer")
2)
(define mod-off-d3 (mod/decide-escalating "r3" 2))
(mod-off-test!
"third spam → ban (2 priors ≥ k)"
(get mod-off-d3 :action)
"ban")
(mod-off-test!
"ban decision names repeat-offender rule"
(get mod-off-d3 :rule)
"repeat-offender-ban")
(mod-off-test!
"ban proof records prior sanction count"
(get (get mod-off-d3 :proof) :prior-sanctions)
2)
;; ── different subjects accumulate independently ──
(define mod-off-d4 (mod/decide-escalating "r4" 2))
(mod-off-test!
"innocent keep → not escalated"
(get mod-off-d4 :action)
"keep")
(mod-off-test!
"innocent has no sanctions"
(mod/subject-sanctions "innocent")
0)
(mod-off-test!
"repeat-offender? true for spammer at k=2"
(mod/repeat-offender? "spammer" 2)
true)
(mod-off-test!
"repeat-offender? false for innocent at k=1"
(mod/repeat-offender? "innocent" 1)
false)
;; ── non-sanction decisions are never upgraded to ban ──
;; r5 is a clean post, but it is the 4th report about "spammer", so the
;; repeated-report rule escalates it. escalate is not a sanction, so it passes
;; through decide-escalating unchanged (never becomes :ban).
(mod/report "u5" "spammer" "a perfectly fine post")
(define mod-off-d5 (mod/decide-escalating "r5" 1))
(mod-off-test!
"non-sanction (escalate) decision is not upgraded to ban"
(get mod-off-d5 :action)
"escalate")
(mod-off-test!
"decide-escalating unknown id → nil"
(mod/decide-escalating "r99" 2)
nil)
(define mod-offenders-tests-run! (fn () {:failures mod-off-failures :total mod-off-count :passed mod-off-pass :failed mod-off-fail}))