67 lines
2.6 KiB
TypeScript
67 lines
2.6 KiB
TypeScript
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// https://github.com/oven-sh/bun/issues/32492
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import { expect, test } from "bun:test";
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import { bunEnv, bunExe, tempDir } from "harness";
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test("concurrent bun build does not stall on worker-pool shutdown", async () => {
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const N_MODULES = 40;
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const files: Record<string, string> = {
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"package.json": JSON.stringify({ name: "repro-32492", version: "0.0.0" }),
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};
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// A chain of modules so each entry bundles real work and warms the pool.
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for (let i = 1; i <= N_MODULES; i++) {
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const next = i + 1;
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files[`src/m${i}.ts`] =
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i < N_MODULES
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? `import { v${next} } from "./m${next}";\nexport const v${i} = ${i} + v${next};\nexport function f${i}() { return v${i} * 2; }\n`
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: `export const v${i} = ${i};\nexport function f${i}() { return v${i} * 2; }\n`;
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}
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const entries = ["browser", "node", "bun", "worker", "schema", "graph", "media", "compress"];
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for (const e of entries) {
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files[`src/${e}-entry.ts`] = `import { v1, f1 } from "./m1";\nconsole.log("${e}", v1, f1());\n`;
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}
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using dir = tempDir("bun-build-pool-shutdown", files);
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const root = String(dir);
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const CONCURRENCY = 24;
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const ROUNDS = 16;
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// The regression is a fixed 10s idle-futex timeout, so a stalled build always
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// exceeds 10s regardless of machine speed. A healthy build is well under a
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// second; keep the threshold high so 24-way oversubscription on a slow ASAN
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// shard can't trip it, while staying comfortably below the 10s floor.
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const STALL_MS = 9000;
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const buildOnce = async (round: number, i: number) => {
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const entry = entries[i % entries.length];
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const started = Date.now();
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await using proc = Bun.spawn({
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cmd: [
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bunExe(),
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"build",
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"--target=browser",
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"--sourcemap=external",
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"--packages=external",
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"--outdir",
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`${root}/out/d${round}_${i}`,
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`./src/${entry}-entry.ts`,
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],
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env: bunEnv,
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cwd: root,
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stdout: "pipe",
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stderr: "pipe",
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});
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const [stdout, stderr, exitCode] = await Promise.all([proc.stdout.text(), proc.stderr.text(), proc.exited]);
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return { ms: Date.now() - started, exitCode, stdout, stderr };
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};
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for (let round = 0; round < ROUNDS; round++) {
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const results = await Promise.all(Array.from({ length: CONCURRENCY }, (_, i) => buildOnce(round, i)));
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const failed = results.find(r => r.exitCode !== 0);
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if (failed) {
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throw new Error(`bun build exited with ${failed.exitCode}\nstdout:\n${failed.stdout}\nstderr:\n${failed.stderr}`);
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}
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const slowestMs = Math.max(...results.map(r => r.ms));
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expect(slowestMs).toBeLessThan(STALL_MS);
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}
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}, 120_000);
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