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test.check generators: rand-double, take +Inf, UUID/Long/shiftLeft, transient

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More general fixes from clojure.test.check's own suite.

- *unchecked-math* on doubles: unchecked-* only wrap integer math; on a flonum
  operand they're an ordinary float op (Clojure: (unchecked-multiply 1.5 2.0) =>
  3.0). test.check's rand-double is (* double-unit shifted) under *unchecked-math*
  and was truncating to a long 0, so every distribution-driven generator (choose,
  vector, …) collapsed to its lower bound.
- (take Double/POSITIVE_INFINITY coll) takes the whole coll instead of throwing
  on the infinite count coercion (rose-tree unchunk relies on it).
- (java.util.UUID. msb lsb) 2-long constructor (the uuid generator), formatted as
  the canonical lowercase 8-4-4-4-12 string; (Long. n) constructor; BigInteger
  .shiftLeft / .shiftRight (size-bounded-bigint); number methods now receive args.
- A transient (ITransientSet) responds to .contains / .valAt / .count
  (distinct-collection generators).

make test green (+3 corpus rows, 0 new divergences), runtime only (no re-mint).
This commit is contained in:
Yogthos 2026-06-27 19:08:34 -04:00
parent 992fc0af34
commit f32bd335e3
5 changed files with 59 additions and 15 deletions
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8
host/chez/java/host-static.ss
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@ -103,13 +103,13 @@
(if f
(apply f obj (if (jolt-nil? rest-args) '() (seq->list rest-args)))
(error #f (string-append "No method " method-name " on host " (jhost-tag obj)))))))
((number? obj) (number-method method-name obj))
((number? obj) (apply number-method method-name obj (if (jolt-nil? rest-args) '() (seq->list rest-args))))
(else (%hs-record-method-dispatch obj method-name rest-args)))))
;; java.lang.Number method surface (the boxed-number methods cljc code calls). The
;; integer projections wrap modulo their width (ring-codec relies on byteValue
;; overflow: (.byteValue 255) => -1); the float projections are identity flonums.
(define (number-method method n)
(define (number-method method n . args)
(cond
((string=? method "byteValue") (let ((b (modulo (jnum->exact n) 256))) (->num (if (>= b 128) (- b 256) b))))
((string=? method "shortValue") (let ((b (modulo (jnum->exact n) 65536))) (->num (if (>= b 32768) (- b 65536) b))))
@ -129,6 +129,10 @@
((string=? method "abs") (->num (abs (jnum->exact n))))
((string=? method "bitLength") (->num (integer-length (jnum->exact n))))
((string=? method "signum") (->num (let ((e (jnum->exact n))) (cond ((> e 0) 1) ((< e 0) -1) (else 0)))))
;; BigInteger.shiftLeft/shiftRight (test.check's size-bounded-bigint): arbitrary
;; precision, so an arithmetic shift by the (positive) amount.
((string=? method "shiftLeft") (->num (bitwise-arithmetic-shift-left (jnum->exact n) (jnum->exact (car args)))))
((string=? method "shiftRight") (->num (bitwise-arithmetic-shift-right (jnum->exact n) (jnum->exact (car args)))))
(else (error #f (string-append "No method " method " for number")))))
;; Mutable static fields: "Class" -> (member -> 1-vector cell). A library that