Function waitForEcho

test/sequential/test-watch-mode.mjs:820–832

(msg)

    child.stdout.on('data', (data) => stdout += data);
    child.stderr.on('data', (data) => stderr += data);
    async function waitForEcho(msg) {
      const receivedPromise = new Promise((resolve) => {
        const fn = (message) => {
          if (message === msg) {
            child.off('message', fn);
            resolve();
          }
        };
        child.on('message', fn);
      });
      child.send(msg);
      await receivedPromise;
    }

    async function waitForText(text) {
      const seenPromise = new Promise((resolve) => {