feat: add bounded parallel runner for the normal test suite
This commit is contained in:
@@ -0,0 +1,701 @@
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import {
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defaultJobs,
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discoverRustCommands,
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execute,
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installCancellationHandlers,
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mapConcurrent,
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parseJobs,
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parseRustListing,
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resultSummary,
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rustTestCommands,
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shardRustCommand,
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} from "./test.ts";
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import { spawn } from "node:child_process";
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import process from "node:process";
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import { fileURLToPath } from "node:url";
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function assert(
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condition: unknown,
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message = "assertion failed",
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): asserts condition {
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if (!condition) throw new Error(message);
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}
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Deno.test("Cargo artifact selection retains every test target and deduplicates executable reports", () => {
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const test = (path: string, target: string) => ({
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reason: "compiler-artifact",
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package_id: "pkg",
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executable: path,
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target: { name: target },
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profile: { test: true },
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});
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const commands = rustTestCommands([
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test("/repo/target/lib-test", "lib"),
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test("/repo/target/integration", "integration"),
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test("/repo/target/integration", "integration"),
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{ ...test("/repo/target/app", "app"), profile: { test: false } },
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{ reason: "build-finished" },
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], [{
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id: "pkg",
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name: "example",
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manifest_path: "/repo/crates/example/Cargo.toml",
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}]);
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assert(commands.length === 2);
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assert(commands[0].cwd === "/repo/crates/example");
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assert(commands[0].env?.CARGO_MANIFEST_DIR === commands[0].cwd);
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assert(commands[1].name === "example/integration");
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assert(
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commands.every((command) => command.args.length === 0),
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"no filtering or ignore flags",
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);
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});
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Deno.test("missing Cargo package or executables fails instead of claiming an empty suite passed", () => {
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for (
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const artifacts of [[], [{
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reason: "compiler-artifact",
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package_id: "missing",
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executable: "/test",
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profile: { test: true },
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target: { name: "test" },
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}]]
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) {
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let failed = false;
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try {
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rustTestCommands(artifacts, []);
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} catch {
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failed = true;
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}
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assert(failed);
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}
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});
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Deno.test("bounded scheduling runs every command once and retains failing results", async () => {
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let active = 0, maximum = 0;
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const seen: number[] = [];
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const results = await mapConcurrent([0, 1, 2, 3, 4], 2, async (item) => {
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active++;
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maximum = Math.max(active, maximum);
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await Promise.resolve();
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seen.push(item);
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active--;
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return item === 2 ? 1 : 0;
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});
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assert(maximum === 2);
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assert(seen.sort().join() === "0,1,2,3,4");
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assert(results.join() === "0,0,1,0,0");
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for (const jobs of [0, -1, 1.5]) {
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let failed = false;
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try {
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await mapConcurrent([], jobs, () => Promise.resolve(0));
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} catch {
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failed = true;
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}
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assert(failed);
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}
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});
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function assertThrows(fn: () => unknown) {
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let failed = false;
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try {
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fn();
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} catch {
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failed = true;
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}
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assert(failed, "expected failure");
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}
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Deno.test("CPU-derived jobs accommodates concurrent suites within the CLI bound", () => {
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assert(defaultJobs(24) === 32);
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assert(defaultJobs(128) === 32);
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assert(defaultJobs(6) === 8);
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assert(defaultJobs(1) === 2);
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assert(parseJobs([]) === defaultJobs());
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assert(parseJobs(["--jobs", "64"]) === 64);
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assert(parseJobs(["--jobs", "1"]) === 1);
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for (
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const args of [
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["--jobs", "65"],
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["--jobs", "0"],
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["--jobs", "1.5"],
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["--jobs", "NaN"],
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["--jobs"],
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["--other", "4"],
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]
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) {
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assertThrows(() => parseJobs(args));
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}
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});
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Deno.test("Rust terse listing accepts every name and fails closed on unknown or duplicate lines", () => {
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assert(parseRustListing("").length === 0);
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assert(
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parseRustListing("unit::a: test\r\nunit::bench: benchmark\r\n").join() ===
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"unit::a,unit::bench",
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);
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for (
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const text of [
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"unit::a\n",
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"unit::a: ignored\n",
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"unit::a: test\n1 test, 0 benchmarks\n",
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"unit::a: test\nunit::a: test\n",
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"\n",
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"unit::a: test\n\n",
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"\x1b[31munit::a: test\n",
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]
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) {
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assertThrows(() => parseRustListing(text));
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}
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});
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function listedNames(count: number) {
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return Array.from({ length: count }, (_, i) => `unit::case_${i}`);
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}
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Deno.test("round-robin shards retain every listed name exactly once at thresholds and the 32-shard cap", () => {
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const task = {
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name: "pkg/binary",
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command: "/test-binary",
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args: [],
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cwd: "/pkg",
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env: { CARGO_MANIFEST_DIR: "/pkg" },
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};
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for (const count of [0, 1, 72, 73, 108, 1135, 1152, 1153, 2000]) {
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const names = parseRustListing(
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listedNames(count).map((name) => `${name}: test\n`).join(""),
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);
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const shards = shardRustCommand(task, names);
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const assigned = shards.flatMap((shard) => shard.selectedNames);
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assert(assigned.length === count && new Set(assigned).size === count);
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assert(
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[...assigned].sort().join("\n") === [...names].sort().join("\n"),
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"no names may be excluded",
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);
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if (count <= 72) {
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assert(
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shards.length === 1 && shards[0].task === task,
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"small binaries must be unchanged",
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);
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} else {
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const expected = Math.min(32, Math.ceil(count / 36));
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assert(shards.length === expected);
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const lengths = shards.map((shard) => shard.selectedNames.length);
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assert(Math.max(...lengths) - Math.min(...lengths) <= 1);
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shards.forEach((shard, index) => {
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assert(
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shard.selectedNames.join() ===
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names.filter((_, i) => i % expected === index).join(),
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"must distribute round-robin",
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);
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assert(
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shard.task.args.slice(0, 3).join() === "--exact,--test-threads,2",
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);
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assert(shard.task.args.slice(3).join() === shard.selectedNames.join());
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assert(
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!shard.task.args.includes("--ignored") &&
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!shard.task.args.includes("--include-ignored"),
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);
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assert(shard.task.cwd === task.cwd && shard.task.env === task.env);
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});
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}
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}
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assertThrows(() => shardRustCommand(task, ["same", "same"]));
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});
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Deno.test("scheduler drains active workers before propagating a callback error", async () => {
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let drained = false;
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let failed = false;
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try {
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await mapConcurrent([0, 1], 2, async (item) => {
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if (!item) throw new Error("callback failed");
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await new Promise((resolve) => setTimeout(resolve, 10));
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drained = true;
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});
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} catch {
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failed = true;
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}
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assert(failed && drained);
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});
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const fixturePath = fileURLToPath(import.meta.url);
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function fixtureArgs(mode: string, output: string) {
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return [
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"run",
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"--allow-read",
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"--allow-write",
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"--allow-run",
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"--allow-env",
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fixturePath,
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mode,
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output,
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];
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}
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function fixtureTask(mode: string, output: string) {
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return {
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name: `fixture/${mode}`,
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command: Deno.execPath(),
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args: fixtureArgs(mode, output),
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cwd: output,
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};
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}
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async function waitUntil(
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check: () => boolean | Promise<boolean>,
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message: string,
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) {
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const end = performance.now() + 10_000;
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while (performance.now() < end) {
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if (await check()) return;
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await new Promise((resolve) => setTimeout(resolve, 20));
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}
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throw new Error(message);
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}
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function absent(pid: number) {
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try {
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process.kill(pid, 0);
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return false;
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} catch (error) {
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if ((error as NodeJS.ErrnoException).code === "ESRCH") return true;
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throw error;
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}
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}
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function emergencyKill(pid: number) {
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try {
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process.kill(-pid, "SIGKILL");
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} catch (error) {
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if ((error as NodeJS.ErrnoException).code !== "ESRCH") throw error;
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}
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}
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for (const [mode, code] of [["success", 0], ["nonzero", 7]] as const) {
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Deno.test({
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name: `execute streams real ${mode} child output and records its exit`,
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ignore: Deno.build.os !== "linux",
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async fn() {
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const output = await Deno.makeTempDir();
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try {
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const result = await execute({
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...fixtureTask(mode, output),
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inventoryRef: { binaryIndex: 3, shardIndex: 1 },
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}, {
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output,
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label: mode,
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timeoutMs: 10_000,
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});
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assert(result.code === code, JSON.stringify(result));
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assert(!result.timedOut);
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assert(!result.error, result.error);
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assert(result.stdout.includes("fixture stdout 日本語"));
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assert(result.stderr.includes("fixture stderr"));
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assert(
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await Deno.readTextFile(`${output}/${mode}.stdout`) === result.stdout,
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);
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assert(
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await Deno.readTextFile(`${output}/${mode}.stderr`) === result.stderr,
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);
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const summary = JSON.parse(
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await Deno.readTextFile(`${output}/${mode}.result.json`),
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);
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assert(summary.code === code && summary.timedOut === false);
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assert(summary.log === mode && summary.timeoutMs === 10_000);
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assert(
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summary.inventoryRef.binaryIndex === 3 &&
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summary.inventoryRef.shardIndex === 1,
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"results must link unambiguously to inventory entries",
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);
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assert(
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!("stdout" in summary),
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"summary references logs, not full output",
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);
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assert(
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absent(Number(await Deno.readTextFile(`${output}/parent.pid`))),
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"direct child must be reaped",
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);
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} finally {
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await Deno.remove(output, { recursive: true });
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}
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},
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});
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}
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Deno.test({
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name:
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"execute preserves live stdout/stderr and times out a group containing a grandchild",
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ignore: Deno.build.os !== "linux",
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async fn() {
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const output = await Deno.makeTempDir();
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let parent: number | undefined;
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let finished = false;
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const running = execute(fixtureTask("tree", output), {
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output,
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label: "tree",
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timeoutMs: 4_000,
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killGraceMs: 500,
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}).finally(() => finished = true);
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try {
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await waitUntil(async () => {
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const text = await Deno.readTextFile(`${output}/tree.stdout`);
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return text.includes("grandchild ready");
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}, "grandchild did not become ready");
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parent = Number(await Deno.readTextFile(`${output}/parent.pid`));
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const grandchild = Number(
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await Deno.readTextFile(`${output}/grandchild.pid`),
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);
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assert(!finished, "logs must be visible before execute resolves");
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assert(
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(await Deno.readTextFile(`${output}/tree.stderr`)).includes(
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"fixture stderr",
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),
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);
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assert(
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!absent(parent) && !absent(grandchild),
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"both processes must actually be running",
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);
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const result = await running;
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assert(result.timedOut && result.code === 124, JSON.stringify(result));
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assert(!result.error, result.error);
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assert(result.seconds < 10, "timeout cleanup must be bounded");
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assert(result.stderr.includes("timeout after 4000ms"));
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assert(
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result.stderr.includes("grandchild reaped"),
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"fixture parent must reap its child",
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);
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assert(absent(parent), "direct child must be reaped by runner");
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assert(absent(grandchild), "grandchild must be stopped and reaped");
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const summary = JSON.parse(
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await Deno.readTextFile(`${output}/tree.result.json`),
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);
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assert(summary.timedOut && summary.code === 124);
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assert(summary.name === "fixture/tree" && summary.log === "tree");
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} finally {
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if (parent !== undefined) emergencyKill(parent);
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await running;
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await Deno.remove(output, { recursive: true });
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}
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},
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});
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Deno.test({
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name:
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"execute escalates SIGTERM to SIGKILL and reaps a stubborn direct child",
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ignore: Deno.build.os !== "linux",
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async fn() {
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const output = await Deno.makeTempDir();
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try {
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const result = await execute(fixtureTask("stubborn", output), {
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output,
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label: "stubborn",
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timeoutMs: 2_000,
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killGraceMs: 100,
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});
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assert(result.stdout.includes("stubborn ready"));
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assert(result.stderr.includes("ignored SIGTERM"));
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assert(
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result.timedOut && result.code === 124 && result.signal === "SIGKILL",
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JSON.stringify(result),
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);
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assert(!result.error, result.error);
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assert(result.seconds < 8);
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assert(absent(Number(await Deno.readTextFile(`${output}/parent.pid`))));
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} finally {
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await Deno.remove(output, { recursive: true });
|
||||
}
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},
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||||
});
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|
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Deno.test({
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name: "execute records spawn failure instead of an empty passing suite",
|
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ignore: Deno.build.os !== "linux",
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async fn() {
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const output = await Deno.makeTempDir();
|
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try {
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const result = await execute({
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name: "missing",
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command: `${output}/does-not-exist`,
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args: [],
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cwd: output,
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}, { output, label: "missing", timeoutMs: 2_000, killGraceMs: 10 });
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assert(result.code !== 0 && !result.timedOut);
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||||
assert(result.error?.includes("ENOENT"), JSON.stringify(result));
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assert(
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(await Deno.readTextFile(`${output}/missing.stderr`)).includes(
|
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"ENOENT",
|
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),
|
||||
);
|
||||
const summary = JSON.parse(
|
||||
await Deno.readTextFile(`${output}/missing.result.json`),
|
||||
);
|
||||
assert(summary.code !== 0 && summary.error.includes("ENOENT"));
|
||||
} finally {
|
||||
await Deno.remove(output, { recursive: true });
|
||||
}
|
||||
},
|
||||
});
|
||||
|
||||
Deno.test({
|
||||
name:
|
||||
"runtime listing persists complete name inventory for large and small binaries",
|
||||
ignore: Deno.build.os !== "linux",
|
||||
async fn() {
|
||||
const output = await Deno.makeTempDir();
|
||||
try {
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||||
const discovery = await discoverRustCommands(
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[
|
||||
fixtureTask("list-large", output),
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fixtureTask("list-small", output),
|
||||
],
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||||
2,
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||||
{ output },
|
||||
);
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assert(discovery.inventory.complete);
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assert(
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||||
discovery.inventory.rustBinaries === 2 &&
|
||||
discovery.inventory.selectedCases === 1137,
|
||||
);
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assert(discovery.tasks.length === 33);
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||||
const persisted = JSON.parse(
|
||||
await Deno.readTextFile(`${output}/inventory.json`),
|
||||
) as typeof discovery.inventory;
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assert(persisted.complete && persisted.selectedCases === 1137);
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const large = persisted.binaries[0];
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assert(large.shards.length === 32 && large.selectedCases === 1135);
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||||
persisted.binaries.forEach((binary, binaryIndex) =>
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binary.shards.forEach((shard, shardIndex) => {
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assert(shard.task.inventoryRef?.binaryIndex === binaryIndex);
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assert(shard.task.inventoryRef?.shardIndex === shardIndex);
|
||||
})
|
||||
);
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const assigned = large.shards.flatMap((shard) => shard.selectedNames);
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assert(new Set(assigned).size === 1135 && assigned.length === 1135);
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assert([...assigned].sort().join() === listedNames(1135).sort().join());
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||||
assert(
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||||
persisted.binaries[1].shards[0].task.args.join() ===
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||||
fixtureTask("list-small", output).args.join(),
|
||||
);
|
||||
assert(
|
||||
persisted.binaries.every((binary) =>
|
||||
binary.listing.code === 0 && binary.listing.seconds > 0
|
||||
),
|
||||
);
|
||||
} finally {
|
||||
await Deno.remove(output, { recursive: true });
|
||||
}
|
||||
},
|
||||
});
|
||||
|
||||
for (const mode of ["list-nonzero", "list-unknown"]) {
|
||||
Deno.test({
|
||||
name:
|
||||
`discovery ${mode} fails with saved evidence rather than running a partial selection`,
|
||||
ignore: Deno.build.os !== "linux",
|
||||
async fn() {
|
||||
const output = await Deno.makeTempDir();
|
||||
try {
|
||||
const discovery = await discoverRustCommands(
|
||||
[
|
||||
fixtureTask("list-small", output),
|
||||
fixtureTask(mode, output),
|
||||
],
|
||||
2,
|
||||
{ output },
|
||||
);
|
||||
assert(!discovery.inventory.complete);
|
||||
assert(discovery.inventory.selectedCases === null);
|
||||
assert(discovery.tasks.length === 0);
|
||||
const persisted = JSON.parse(
|
||||
await Deno.readTextFile(`${output}/inventory.json`),
|
||||
) as typeof discovery.inventory;
|
||||
assert(
|
||||
!persisted.complete && persisted.binaries[1].shards.length === 0,
|
||||
);
|
||||
assert(
|
||||
persisted.binaries[1].error?.includes(
|
||||
mode === "list-nonzero" ? "code 7" : "unknown Rust listing format",
|
||||
),
|
||||
);
|
||||
const listing = JSON.parse(
|
||||
await Deno.readTextFile(`${output}/list-001.result.json`),
|
||||
);
|
||||
assert(listing.code === (mode === "list-nonzero" ? 7 : 0));
|
||||
assert(
|
||||
persisted.discoveredCases === 2,
|
||||
"partial discovery must not be presented as complete selection",
|
||||
);
|
||||
} finally {
|
||||
await Deno.remove(output, { recursive: true });
|
||||
}
|
||||
},
|
||||
});
|
||||
}
|
||||
|
||||
async function textIfPresent(path: string): Promise<string> {
|
||||
try {
|
||||
return await Deno.readTextFile(path);
|
||||
} catch (error) {
|
||||
if (error instanceof Deno.errors.NotFound) return "";
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
for (const signal of ["SIGINT", "SIGTERM"] as const) {
|
||||
Deno.test({
|
||||
name:
|
||||
`parent ${signal} cleans up active groups, reaps children and does not spawn queued commands`,
|
||||
ignore: Deno.build.os !== "linux",
|
||||
async fn() {
|
||||
const output = await Deno.makeTempDir();
|
||||
const parent = new Deno.Command(Deno.execPath(), {
|
||||
args: fixtureArgs("runner-parent", output),
|
||||
stdout: "piped",
|
||||
stderr: "piped",
|
||||
}).spawn();
|
||||
const done = parent.output();
|
||||
const pids: number[] = [];
|
||||
try {
|
||||
await waitUntil(
|
||||
async () =>
|
||||
(await textIfPresent(`${output}/tree/tree.stdout`)).includes(
|
||||
"grandchild ready",
|
||||
) &&
|
||||
(await textIfPresent(`${output}/stubborn/stubborn.stdout`))
|
||||
.includes("stubborn ready"),
|
||||
"parent runner fixtures did not become ready",
|
||||
);
|
||||
for (
|
||||
const file of [
|
||||
"tree/parent.pid",
|
||||
"tree/grandchild.pid",
|
||||
"stubborn/parent.pid",
|
||||
]
|
||||
) {
|
||||
pids.push(Number(await Deno.readTextFile(`${output}/${file}`)));
|
||||
}
|
||||
process.kill(parent.pid, signal);
|
||||
const status = await done;
|
||||
assert(
|
||||
status.code === (signal === "SIGINT" ? 130 : 143),
|
||||
new TextDecoder().decode(status.stderr),
|
||||
);
|
||||
assert(absent(parent.pid));
|
||||
assert(
|
||||
pids.every(absent),
|
||||
"active children and grandchild must be reaped",
|
||||
);
|
||||
const results = JSON.parse(
|
||||
await Deno.readTextFile(`${output}/cancel-summary.json`),
|
||||
) as ReturnType<typeof resultSummary>[];
|
||||
assert(results.length === 3);
|
||||
assert(
|
||||
results.every((result) =>
|
||||
result.cancelled && result.cancellationReason === signal &&
|
||||
!result.timedOut && !result.error
|
||||
),
|
||||
);
|
||||
assert(
|
||||
results[1].signal === "SIGKILL",
|
||||
"stubborn child requires escalation on parent cancellation too",
|
||||
);
|
||||
assert(
|
||||
await textIfPresent(`${output}/queued/parent.pid`) === "",
|
||||
"cancelled queue must not spawn",
|
||||
);
|
||||
assert(
|
||||
(await Deno.readTextFile(`${output}/tree/tree.stderr`)).includes(
|
||||
"grandchild reaped",
|
||||
),
|
||||
);
|
||||
} finally {
|
||||
if (!absent(parent.pid)) process.kill(parent.pid, "SIGTERM");
|
||||
await done;
|
||||
for (const pid of pids) emergencyKill(pid);
|
||||
await Deno.remove(output, { recursive: true });
|
||||
}
|
||||
},
|
||||
});
|
||||
}
|
||||
|
||||
// Real subprocess fixtures live here rather than introducing another executable.
|
||||
// A watchdog is independent of execute, so a broken runner cannot leak fixtures
|
||||
// forever. The tree's parent cooperatively reaps its child on TERM; KILL behavior
|
||||
// is exercised separately by the stubborn fixture.
|
||||
if (import.meta.main) {
|
||||
const [mode, output] = Deno.args;
|
||||
setTimeout(() => Deno.exit(99), 20_000);
|
||||
if (mode.startsWith("list-")) {
|
||||
assert(
|
||||
Deno.args.slice(2).join() === "--list,--format,terse",
|
||||
"discovery must use libtest terse listing",
|
||||
);
|
||||
if (mode === "list-unknown") {
|
||||
console.log("unexpected harness output");
|
||||
} else {
|
||||
console.log(
|
||||
listedNames(mode === "list-large" ? 1135 : 2).map((name) =>
|
||||
`${name}: test`
|
||||
).join("\n"),
|
||||
);
|
||||
}
|
||||
Deno.exit(mode === "list-nonzero" ? 7 : 0);
|
||||
} else if (mode === "runner-parent") {
|
||||
const cancellation = installCancellationHandlers();
|
||||
try {
|
||||
for (const dir of ["tree", "stubborn", "queued"]) {
|
||||
await Deno.mkdir(`${output}/${dir}`);
|
||||
}
|
||||
const results = await mapConcurrent(
|
||||
["tree", "stubborn", "queued"],
|
||||
2,
|
||||
async (name) => {
|
||||
const dir = `${output}/${name}`;
|
||||
return resultSummary(
|
||||
await execute(
|
||||
fixtureTask(name === "queued" ? "success" : name, dir),
|
||||
{
|
||||
output: dir,
|
||||
label: name,
|
||||
timeoutMs: 15_000,
|
||||
killGraceMs: 200,
|
||||
signal: cancellation.signal,
|
||||
},
|
||||
),
|
||||
);
|
||||
},
|
||||
);
|
||||
await Deno.writeTextFile(
|
||||
`${output}/cancel-summary.json`,
|
||||
JSON.stringify(results),
|
||||
);
|
||||
Deno.exitCode = results[0].code;
|
||||
} finally {
|
||||
cancellation.dispose();
|
||||
}
|
||||
Deno.exit(Deno.exitCode);
|
||||
} else if (mode === "grandchild") {
|
||||
Deno.addSignalListener("SIGTERM", () => Deno.exit(0));
|
||||
Deno.writeTextFileSync(`${output}/grandchild.pid`, String(Deno.pid));
|
||||
console.log("grandchild ready");
|
||||
} else {
|
||||
Deno.writeTextFileSync(`${output}/parent.pid`, String(Deno.pid));
|
||||
console.log("fixture stdout 日本語");
|
||||
console.error("fixture stderr");
|
||||
if (mode === "success" || mode === "nonzero") {
|
||||
Deno.exit(mode === "success" ? 0 : 7);
|
||||
} else if (mode === "stubborn") {
|
||||
Deno.addSignalListener("SIGTERM", () => console.error("ignored SIGTERM"));
|
||||
console.log("stubborn ready");
|
||||
} else if (mode === "tree") {
|
||||
// The grandchild inherits the new group from execute's direct child.
|
||||
// The parent intentionally does NOT forward TERM: only group signaling
|
||||
// can stop the grandchild before its independent watchdog.
|
||||
Deno.addSignalListener("SIGTERM", () => {});
|
||||
const child = spawn(Deno.execPath(), fixtureArgs("grandchild", output), {
|
||||
stdio: "inherit",
|
||||
});
|
||||
child.on("close", () => {
|
||||
console.error("grandchild reaped");
|
||||
Deno.exit(0);
|
||||
});
|
||||
} else {
|
||||
throw new Error(`unknown fixture mode: ${mode}`);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user