jolt/test/chez/values-test.ss
Yogthos b3d0a91e3e Chez Phase 0c + 0a hardening: collections decision + value-model fixes
0c: persistent HAMT on Chez is ~41x faster than Janet's HAMT on the collections
map-churn (258.6 -> 6.3 ms), ~15x off mutable-native (inherent persistence cost).
Decision: self-host the persistent collections in Clojure; substrate is not the
bottleneck. See docs/chez-phase0-results.md.

0a hardening: NUL-separated keyword intern key (no ns/name collision), non-finite
-safe jolt-hash. 37/37.
2026-06-17 13:10:19 -04:00

67 lines
2.8 KiB
Scheme

;; Phase 0a tests — Jolt value model on Chez. Run from repo root:
;; chez --script test/chez/values-test.ss
(import (chezscheme))
(load "host/chez/values.ss")
(define total 0)
(define fails 0)
(define (ok name pred)
(set! total (+ total 1))
(unless pred (set! fails (+ fails 1)) (printf "FAIL: ~a\n" name)))
;; nil distinct from #f and '()
(ok "nil not #f" (not (eq? jolt-nil #f)))
(ok "nil not '()" (not (eq? jolt-nil '())))
(ok "nil? jolt-nil" (jolt-nil? jolt-nil))
(ok "nil? not on #f" (not (jolt-nil? #f)))
;; truthiness: only nil and false falsey
(ok "nil falsey" (not (jolt-truthy? jolt-nil)))
(ok "false falsey" (not (jolt-truthy? #f)))
(ok "true truthy" (jolt-truthy? #t))
(ok "0 truthy" (jolt-truthy? 0))
(ok "empty-str truthy" (jolt-truthy? ""))
(ok "empty-list truthy" (jolt-truthy? '()))
;; keywords interned -> identity
(ok "kw eq" (eq? (keyword #f "foo") (keyword #f "foo")))
(ok "kw ns eq" (eq? (keyword "a" "foo") (keyword "a" "foo")))
(ok "kw diff ns" (not (eq? (keyword "a" "foo") (keyword #f "foo"))))
(ok "kw?" (keyword? (keyword #f "x")))
(ok "kw not sym" (not (jolt-symbol? (keyword #f "x"))))
;; symbols NOT interned but jolt= by ns/name
(ok "sym not eq" (not (eq? (jolt-symbol #f "x") (jolt-symbol #f "x"))))
(ok "sym jolt=" (jolt= (jolt-symbol #f "x") (jolt-symbol #f "x")))
(ok "sym diff name" (not (jolt= (jolt-symbol #f "x") (jolt-symbol #f "y"))))
(ok "sym?" (jolt-symbol? (jolt-symbol "ns" "n")))
;; numbers: exactness-aware = (Clojure semantics)
(ok "1 = 1" (jolt= 1 1))
(ok "1 not= 1.0" (not (jolt= 1 1.0)))
(ok "1.0 = 1.0" (jolt= 1.0 1.0))
(ok "ratio =" (jolt= 1/2 1/2))
(ok "bigint=int exact" (jolt= 2 (expt 2 1)))
(ok "= variadic" (jolt= 3 3 3))
(ok "= variadic false" (not (jolt= 3 3 4)))
;; strings / chars
(ok "str =" (jolt= "ab" "ab"))
(ok "str !=" (not (jolt= "ab" "ac")))
(ok "char =" (jolt= #\a #\a))
;; hashing consistent with =
(ok "hash kw stable" (= (jolt-hash (keyword #f "k")) (jolt-hash (keyword #f "k"))))
(ok "hash sym stable" (= (jolt-hash (jolt-symbol #f "k")) (jolt-hash (jolt-symbol #f "k"))))
(ok "hash 1 != 1.0" (not (= (jolt-hash 1) (jolt-hash 1.0))))
(ok "hash str stable" (= (jolt-hash "abc") (jolt-hash "abc")))
;; regression: keyword intern key must not collide across ns/name boundary
(ok "kw no boundary collide" (not (eq? (keyword "a" "b/c") (keyword "a/b" "c"))))
;; regression: jolt-hash must not throw on non-finite floats
(ok "hash +inf ok" (number? (jolt-hash +inf.0)))
(ok "hash +nan ok" (number? (jolt-hash +nan.0)))
(ok "hash inf != exact" (not (= (jolt-hash +inf.0) (jolt-hash 0))))
(printf "values-test: ~a/~a passed\n" (- total fails) total)
(exit (if (> fails 0) 1 0))