920fafe032
The gate spent almost all its time rebuilding identical contexts: init is ~50 ms interpreted / ~900 ms compiled (tier loading, analyzer build, macro recompilation), and both the conformance harness and the spec harness built a fresh ctx PER CASE — 269 cases x 3 modes for conformance alone (~285 s), and ~1500 spec cases (~90 s). The suite battery additionally ran its 234 worker subprocesses sequentially (~100 s incl. 5 x 6 s timeout files). - api: snapshot/fork — marshal a fully-built ctx once (reverse-lookup dicts from root-env, built at module load before any ctx exists), unmarshal cheap fully-isolated deep copies (~2 ms). A fork shares nothing mutable with its siblings, so per-case isolation is preserved exactly. - conformance: one init per mode + fork per case (self-host pre-builds the analyzer before snapshotting). 285 s -> 5 s, same 269x3 results. - spec harness: jeval/run-spec/expect-throws fork from one lazy module-level snapshot. Spec sweep ~90 s -> 9 s, all pass. - clojure-test-suite: run the per-file worker subprocesses through a token-channel worker pool (default 4, JOLT_SUITE_WORKERS to override, capped at 8). 17.5 s with counts identical to the sequential run (4046/520/116, 5 timeouts). Full gate wall-clock: ~8 min -> 43 s, everything green (conformance 269x3, fallback-zero, fixpoint, self-host, sci, staged, suite >= 4034/67, all specs+unit).
160 lines
8 KiB
Text
160 lines
8 KiB
Text
# clojure-test-suite conformance: runs the external, cross-dialect
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# clojure-test-suite (jank-lang fork) against Jolt and asserts the number of
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# passing per-function test files stays at/above a baseline. The suite is a git
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# submodule at vendor/clojure-test-suite (CI checks it out via submodules:
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# recursive). The test SKIPS cleanly only if the submodule isn't initialized
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# (run `git submodule update --init`).
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#
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# Each suite file is a `clojure.test` namespace (one per clojure.core/string
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# function). A minimal clojure.test + portability shim (test/support/clojure_test.clj)
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# lets Jolt load them; `when-var-exists` auto-skips fns Jolt doesn't implement.
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#
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# Files are run in a one-shot worker subprocess (test/integration/suite-worker.janet)
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# under a wall-clock deadline. A few suite tests build infinite sequences that an
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# uncompilable/eager path can't truncate and so HANG rather than fail; the
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# deadline contains them — a timed-out file contributes nothing, no skip-list.
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(def suite-dir "vendor/clojure-test-suite/test/clojure")
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# Baseline: assertions Jolt currently passes across the suite. Raise as Jolt
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# improves so a regression (previously-passing assertion breaking) is caught.
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# Lowered 3915 -> 3913 when futures landed: `realized?`/realized_qmark.cljc has a
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# `(when-var-exists future ...)` block that was skipped while `future` was
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# unresolved. With futures implemented the block now runs, but it depends on JVM
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# `Thread/sleep` (jolt has no JVM interop) and on `future-cancel` interrupting a
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# running thread (Janet OS threads can't be interrupted), so `(deref (future
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# (sleep 1)))` re-raises the unresolved-`Thread/sleep` error — a documented
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# platform gap, not a regression in any previously-working behavior.
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# Raised 3913 -> 3916 with the staged-bootstrap kernel tier (ns-restore-on-throw
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# + faithful subvec coercion), then 3916 -> 3919 moving juxt/every-pred/some-fn to
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# Clojure (the canonical defs are more correct than the prior Janet ones). Raised
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# 3919 -> 3926 preserving nil map values (jolt-c7h): a nil value is a present key,
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# which several suite tests assert. Runs read 3927 consistently, occasionally 3926
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# when a timeout-prone test (of the 9 that can time out) doesn't finish; floor at
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# the consistent-minus-one 3926.
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# Raised 3971 -> 3981 with Option A full laziness (jolt-fng): transformers return
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# lazy seqs, lazy interleave stops timing out, and the lazy-seq nil-element +
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# non-seqable-input fixes (case/seq/reverse/empty? over nil-first lazy seqs;
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# lazy-from throws on non-seqable like Clojure) recovered + extended the suite.
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# clean files 45 -> 66 (Option A makes seq?/vector? results match Clojure across
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# many cross-dialect files). Stable across runs.
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# Raised 3981 -> 4004 migrating 7 lazy seq fns to the Clojure overlay (40-lazy
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# tier): the canonical CLJ versions add coverage (e.g. distinct value-equality).
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# Raised 4004 -> 4034 / clean 66 -> 67 porting partition-all + repeatedly to the
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# overlay, which required fixing two leniencies (a char is not callable; take
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# validates its count) — correct beyond those fns, so the suite rose broadly.
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(def baseline-pass 4034)
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# A file is "clean" when it ran with zero failures AND zero errors.
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(def baseline-clean-files 67)
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# Per-file wall-clock budget (seconds). Normal files finish in well under 1s, so
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# this normally only fires on genuinely-infinite-sequence hangs. It's an env var
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# (JOLT_SUITE_TIMEOUT) so CI — whose runners are slower than a dev machine — can
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# give slow-but-finite files generous headroom without timing them out (which
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# would drop total-pass below the baseline and flake CI red). Default 6 locally.
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(def per-file-timeout
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(let [e (os/getenv "JOLT_SUITE_TIMEOUT")]
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(or (and e (scan-number e)) 6)))
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(defn- walk [dir acc]
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(each e (os/dir dir)
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(def p (string dir "/" e))
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(case ((os/stat p) :mode)
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:directory (walk p acc)
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:file (when (and (string/has-suffix? ".cljc" p)
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(not (string/has-suffix? "portability.cljc" p)))
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(array/push acc p))))
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acc)
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# Run one file in a worker subprocess; return its "pass fail error" stdout, or
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# nil if it exceeded the deadline (hang) or crashed.
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(defn- run-file [path]
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(def proc (os/spawn ["janet" "test/integration/suite-worker.janet" path] :p {:out :pipe}))
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(def out (proc :out))
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(var data nil)
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(def ok
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(try
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(ev/with-deadline per-file-timeout
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(set data (ev/read out 0x10000)) # workers print a single short line
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(os/proc-wait proc)
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true)
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([err] false)))
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(when (not ok)
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(protect (os/proc-kill proc true))
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(protect (ev/with-deadline 2 (os/proc-wait proc))))
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(protect (:close out))
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(if (and ok data) (string data) nil))
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(defn- parse-counts [s]
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# Find the "@@COUNTS p f e" sentinel line (a test body may have printed other
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# lines to stdout, e.g. with-out-str tests).
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(var result nil)
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(each line (string/split "\n" s)
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(when (string/has-prefix? "@@COUNTS " line)
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(let [parts (string/split " " (string/trim line))]
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(when (= 4 (length parts))
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(set result [(scan-number (parts 1)) (scan-number (parts 2)) (scan-number (parts 3))])))))
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result)
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(if (not (os/stat suite-dir))
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(print "clojure-test-suite: vendor/clojure-test-suite not initialized — skipped (run: git submodule update --init)")
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(do
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(def progress? (os/getenv "SUITE_PROGRESS"))
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(def files (sort (walk suite-dir @[])))
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(var total-pass 0)
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(var total-fail 0)
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(var total-error 0)
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(var clean-files 0)
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(var ran-files 0)
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(var timeouts 0)
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(def worst @[])
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# Worker pool: each file is already its own subprocess (isolation + hang
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# containment), so concurrency only changes wall-clock. A token-channel
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# semaphore caps the live workers; os/spawn / ev/read / os/proc-wait are
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# event-loop aware so the fibers genuinely interleave. Totals are
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# order-independent. Default 4 keeps per-file wall-clock deadlines honest
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# on small CI runners; override with JOLT_SUITE_WORKERS.
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(def nworkers
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(min 8 (max 1 (or (scan-number (or (os/getenv "JOLT_SUITE_WORKERS") ""))
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(os/cpu-count) 4))))
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(def sem (ev/chan nworkers))
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(def done (ev/chan (length files)))
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(each path files
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(ev/spawn
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(ev/give sem :tok) # acquire (blocks when pool is full)
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(def out (run-file path))
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(ev/take sem) # release
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(ev/give done [path out])))
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(for _ 0 (length files)
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(def [path out] (ev/take done))
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(def rel (string/slice path (+ 1 (length suite-dir))))
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(def counts (and out (parse-counts out)))
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(when progress?
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(eprintf " %s%s" rel (cond (nil? out) " TIMEOUT" (nil? counts) " (no counts)" ""))
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(eflush))
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(cond
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(nil? out) (++ timeouts)
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(nil? counts) nil
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(let [[pn fn* en] counts]
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(++ ran-files)
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(+= total-pass pn)
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(+= total-fail fn*)
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(+= total-error en)
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(when (and (= 0 fn*) (= 0 en) (> pn 0)) (++ clean-files))
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(when (> (+ fn* en) 0) (array/push worst [(+ fn* en) rel pn fn* en])))))
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(def total (+ total-pass total-fail total-error))
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(printf "\nclojure-test-suite: %d files ran (%d timed out), %d assertions — %d pass / %d fail / %d error"
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ran-files timeouts total total-pass total-fail total-error)
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(printf "\n clean files (0 fail/error, >0 pass): %d" clean-files)
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(sort-by (fn [x] (- (x 0))) worst)
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(when (> (length worst) 0)
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(print " top files by fail+error:")
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(each w (slice worst 0 (min 15 (length worst)))
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(printf " %-40s pass=%d fail=%d err=%d" (w 1) (w 2) (w 3) (w 4))))
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(assert (>= total-pass baseline-pass)
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(string/format "regression: total-pass %d < baseline %d" total-pass baseline-pass))
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(assert (>= clean-files baseline-clean-files)
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(string/format "regression: clean-files %d < baseline %d" clean-files baseline-clean-files))
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(printf "\nclojure-test-suite: OK (>= %d pass, >= %d clean files)\n" baseline-pass baseline-clean-files)))
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