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fix(FN-798): scope engine vitest fork pool

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Fusion-Task-Id: FN-798
This commit is contained in:
Phil Larson
2026-06-25 11:16:16 -07:00
parent fa8e9fa817
commit b62b4b0e30
2 changed files with 30 additions and 8 deletions
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25
scripts/__tests__/engine-vitest-gate-policy.test.mjs
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@@ -16,13 +16,32 @@ function readJson(relativePath) {
return JSON.parse(read(relativePath));
}
test("engine-core gate keeps a Node 24/macOS-safe Vitest pool without hiding warnings", () => {
test("engine-core gate keeps a Node 24/macOS-safe Vitest pool without changing broad engine lanes", () => {
const config = read("packages/engine/vitest.config.ts");
const projectsIndex = config.indexOf("projects:");
const rootTestConfig = projectsIndex === -1 ? config : config.slice(0, projectsIndex);
const engineCoreBlock = config.match(/name:\s*"engine-core"[\s\S]*?include:\s*\[/)?.[0] ?? "";
const engineDefaultBlock = config.match(/name:\s*"engine-default"[\s\S]*?include:\s*\[/)?.[0] ?? "";
assert.match(
config,
engineCoreBlock,
/pool:\s*"forks"/,
"engine Vitest must use fork workers; thread workers abort with Node 24/macOS libuv kqueue",
"engine-core must use fork workers; thread workers abort with Node 24/macOS libuv kqueue",
);
assert.doesNotMatch(
rootTestConfig,
/pool:\s*"forks"/,
"fork workers must not be configured at root scope because that slows the broad engine-default lane",
);
assert.match(
rootTestConfig,
/pool:\s*"threads"/,
"root engine config must explicitly keep broad lanes on threads because Vitest 4 defaults to forks",
);
assert.doesNotMatch(
engineDefaultBlock,
/pool:\s*"forks"/,
"engine-default must keep inheriting Vitest's default thread pool for broad src/**/*.test.ts runs",
);
assert.doesNotMatch(
config,