await expect(runPromise).resolves.toBe(0);

expect(runGroup).toHaveBeenCalledTimes(3);

const firstRunGroupParams = requireFirstMockArg<RunGroupParams>(runGroup);

expect(firstRunGroupParams).toMatchObject({

expect(firstRunGroupParams).toEqual({

args: ["--reporter=dot"],

config: "heavy",

env: {

OPENCLAW_EXTENSION_BATCH_PARALLEL: "2",

OPENCLAW_VITEST_FS_MODULE_CACHE_PATH: path.join(

process.cwd(),

"node_modules",

".experimental-vitest-cache",

"extension-batch",

"0-heavy",

),

},

targets: ["extensions/two"],

});

expect(firstRunGroupParams.env.OPENCLAW_VITEST_FS_MODULE_CACHE_PATH).toContain(

path.join("node_modules", ".experimental-vitest-cache", "extension-batch", "0-heavy"),

);

});

it("keeps extension batch parallelism bounded by group count", () => {