import { describe, expect, it } from "vitest"; import { runProcess, spawnDetachedProcess, spawnProcessSync } from "./processRunner"; describe("runProcess", () => {  it("fails when output exceeds max buffer in default mode", async () => {    await expect(      runProcess("node", ["-e", "process.stdout.write('x'.repeat(2048))"], { maxBufferBytes: 128 }),    ).rejects.toThrow("exceeded stdout buffer limit");  });   it("truncates output when outputMode is truncate", async () => {    const result = await runProcess("node", ["-e", "process.stdout.write('x'.repeat(2048))"], {      maxBufferBytes: 128,      outputMode: "truncate",    });     expect(result.code).toBe(0);    expect(result.stdout.length).toBeLessThanOrEqual(128);    expect(result.stdoutTruncated).toBe(true);    expect(result.stderrTruncated).toBe(false);  });   it("runs sync commands through the shared spawn strategy", () => {    const result = spawnProcessSync("node", ["-e", "process.stdout.write('ok')"], {      stdio: ["ignore", "pipe", "pipe"],    });     expect(result.error).toBeUndefined();    expect(result.status).toBe(0);    expect(result.stdout).toBe("ok");  });   it("spawns detached commands through the shared spawn strategy", async () => {    await expect(      spawnDetachedProcess(process.execPath, ["-e", "process.exit(0)"]),    ).resolves.toBeUndefined();  });});