// Qa Lab tests cover Windows process tree sampling command selection.

import path from "node:path";

import { afterEach, describe, expect, it, vi } from "vitest";

const spawnSyncMock = vi.hoisted(() => vi.fn());

vi.mock("node:child_process", async () => {

const actual = await vi.importActual<typeof import("node:child_process")>("node:child_process");

return {

...actual,

spawnSync: spawnSyncMock,

};

});

import { readProcessTreeCpuMs } from "./process-tree-cpu.js";

afterEach(() => {

vi.restoreAllMocks();

vi.unstubAllEnvs();

spawnSyncMock.mockReset();

});

describe("readProcessTreeCpuMs on Windows", () => {

it("uses the trusted Windows PowerShell path", () => {

vi.spyOn(process, "platform", "get").mockReturnValue("win32");

vi.stubEnv("SystemRoot", "D:\\Windows");

spawnSyncMock.mockReturnValue({

status: 0,

stdout: JSON.stringify([

{

ProcessId: 100,

ParentProcessId: 50,

KernelModeTime: "10000",

UserModeTime: "20000",

WorkingSetSize: "1000",

},

{

ProcessId: 101,

ParentProcessId: 100,

KernelModeTime: "30000",

UserModeTime: "40000",

WorkingSetSize: "2000",

},

]),

});

expect(readProcessTreeCpuMs(100)).toBe(10);

expect(spawnSyncMock.mock.calls[0]?.[0]).toBe(

path.win32.join("D:\\Windows", "System32", "WindowsPowerShell", "v1.0", "powershell.exe"),

);

});

});