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jolt/test/chez
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Yogthos 3340635714 ^long is a 64-bit long: fast-path-with-fallback ops + logical unsigned shift 
Completes the JVM long-compatibility gap so clojure.test.check (and the
property-based suites built on it, e.g. data.codec) run on jolt.

A ^long is 64-bit but a Chez fixnum is only 61-bit, so the backend's fast fx
comparison / quot / min / max / inc / dec ops raised on a full-width long (one
from the PRNG or wrapping arithmetic). They now go through the jolt-l* macros
(host/chez/seq.ss): the fx fast path when the operands ARE fixnums, the generic
op otherwise — so e.g. ((fn [^long a ^long b] (< a b)) Long/MAX 1) is false, not
an error. Arithmetic +/-/* keep the raw fx ops (under *unchecked-math* they're
already the wrapping unchecked-*).

Also fixes unsigned-bit-shift-right: it was an arithmetic (sign-propagating)
shift, now a logical shift over the 64-bit two's-complement window, so
(unsigned-bit-shift-right -1 1) is 2^63-1 like the JVM.

Result: test.check 1.1.3 loads and runs (generators, quick-check, shrinking);
data.codec's base64 property suite passes (12/12 defspecs; the 2 deftests check
clojure.lang.IFn$OLLOL, a JVM primitive-fn interface, N/A). Both added to
docs/libraries.md + the site.

re-mint (backend/seed). make test green (+3 corpus rows, 0 new divergences,
numeric gate updated to the jolt-l* ops), shakesmoke byte-identical.
2026-06-27 16:04:19 -04:00
..
build-app Source locations: reader positions, error locations, native stack traces (#218) 2026-06-26 02:14:34 +00:00
bench-chez.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
corpus.edn ^long is a 64-bit long: fast-path-with-fallback ops + logical unsigned shift 2026-06-27 16:04:19 -04:00
directlink-test.ss Fix direct-link crash on a non-fn var called as a function 2026-06-23 23:34:28 -04:00
ffi-binding-test.ss Group the JVM interop shims under host/chez/java/ 2026-06-25 18:35:44 -04:00
inline-test.ss Enable IR inlining: splice small defns at call sites (lever 1/4) 2026-06-23 17:43:13 -04:00
numeric-test.ss ^long is a 64-bit long: fast-path-with-fallback ops + logical unsigned shift 2026-06-27 16:04:19 -04:00
README.md Docs: Chez-only, drop the Janet-era references and obsolete migration notes 2026-06-22 09:05:35 -04:00
transient-test.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00
unit.edn fd subsystem: instance? name-boundary + ~ reads as clojure.core/unquote 2026-06-27 11:22:01 -04:00
values-test.ss Clean up codebase: rename stdlib layer, strip porting residue, fix tooling 2026-06-22 22:18:00 -04:00

README.md

Chez test harness

The correctness gate for jolt. Pure Chez (+ Clojure for the JVM oracle). Correctness is judged against the JVM-sourced conformance spec; the spec itself lives in test/conformance/ (see its SPEC.md). Run the whole gate with make test from the repo root.

The spec corpus

corpus.edn is the contract: ~2920 rows {:suite :label :expected :actual}, with :expected sourced from reference JVM Clojure by test/conformance/regen-corpus.clj. It is frozen (the canonical source) — add or change cases here, then re-source the answers with regen-corpus.clj and re-certify with test/conformance/certify.clj.

The gate runners (host/chez/)

  • run-corpus.ss — runs every corpus case through the spine (read → analyze → IR → emit → eval, all on Chez), comparing each result by value-equality against the JVM :expected. A known-fail allowlist covers cases jolt can't match because Chez has no JVM host (Java classes, arrays, BigDecimal, opaque host-object printers, …); the gate fails only on a NEW divergence or if the pass count drops below the floor.

    chez --script host/chez/run-corpus.ss
JOLT_CORPUS_LIMIT=200 …            # every-Nth stride, fast iteration
JOLT_CHEZ_ZJ_FLOOR=N …            # override the floor (default 2678)

  • run-unit.ss — host-specific unit cases (test/chez/unit.edn) that aren't in the JVM-portable corpus: dot-forms, java statics, io, reader, walk, vars/namespaces, refs. Each :expr is evaluated in-process and its printed value compared to a baked :expected (:throws asserts a raise).

  • selfcheck.sh — self-host fixpoint: bootstrap.ss rebuild byte-equals the checked-in seed (host/chez/seed/).

  • smoke.sh — real bin/joltc -e CLI smoke.

Other Chez tests

  • values-test.ss — the value model (nil/truthiness/collections). make values.
  • bench-chez.ss — compute bench through the pipeline (opt-in; not in the gate).

All runners assume chez on PATH.