testPsListsWhatsRunning

tcmts.cli.test.e2e.prod.testPsListsWhatsRunning · #tza3rccq · term

tcm ps lists a tcm start while it runs, with the app it runs, its branch and where it's listening; once it's stopped, it isn't listed (its record went with it).

import { plainEnv, strip, tcmBin, withChildren } from "#codebase/tcmts/cli/test/e2e/harness";
import { setUp, waitFor } from "#codebase/tcmts/cli/test/e2e/prod";
import assert from "node:assert/strict";
import { spawn } from "node:child_process";

export const testPsListsWhatsRunning = () =>
  withChildren(async (keep) => {
    const { dir, tcm, scratch } = setUp();
    assert.match(strip(tcm("ps")), /nothing tcm runs is running on this codebase/);
    scratch(`// tcm: namespace app
export function main() { document.querySelector("#app")!.textContent = "hello"; }
`);
    tcm("add");
    const child = keep(
      spawn(process.execPath, [tcmBin(), "start", "app.main", "--port", "0"], {
        cwd: dir,
        env: plainEnv(),
      }),
    );
    let out = "";
    child.stdout!.setEncoding("utf8").on("data", (d: string) => (out += d));
    child.stderr!.setEncoding("utf8").on("data", (d: string) => (out += d));
    await waitFor(() => /url\s+http:\/\/\S+/.test(out));
    const url = /url\s+(http:\/\/\S+)/.exec(out)![1]!;
    const listed = strip(tcm("ps"));
    const line = listed.split("\n").find((l) => l.includes("start app.main"));
    assert.ok(line, listed);
    assert.ok(line.includes(String(child.pid)), listed);
    assert.ok(line.includes(url), listed);
    assert.match(line, /\bmain\b.*\bhttp/, listed);
    child.kill();
    await new Promise((r) => child.once("exit", r));
    assert.match(strip(tcm("ps")), /nothing tcm runs is running on this codebase/);
  })

testPsListsWhatsRunning

uses