Function waitForDevTools

scripts/e2e-webrtc-reliability.mjs:118–154

(chromeProcess, getChromeOutput, getSpawnError)

}

async function waitForDevTools(chromeProcess, getChromeOutput, getSpawnError) {
  const versionUrl = `http://127.0.0.1:${debugPort}/json/version`;
  const startedAt = Date.now();
  while (Date.now() - startedAt < chromeStartupTimeoutMs) {
    const spawnError = getSpawnError();
    if (spawnError) {
      throw new Error(
        [`Chrome failed to start: ${spawnError.message}`, getChromeOutput()]
          .filter(Boolean)
          .join("\n"),
      );
    }
    if (chromeProcess.exitCode !== null || chromeProcess.signalCode !== null) {
      throw new Error(
        [
          `Chrome exited before DevTools became available (exit=${chromeProcess.exitCode}, signal=${chromeProcess.signalCode}).`,
          getChromeOutput(),
        ]
          .filter(Boolean)
          .join("\n"),
      );
    }
    try {
      return await fetchJson(versionUrl);
    } catch {
      await sleep(100);
    }
  }
  throw new Error(
    [
      `Timed out waiting ${chromeStartupTimeoutMs}ms for Chrome DevTools endpoint at ${versionUrl}.`,
      getChromeOutput(),
    ]
      .filter(Boolean)
      .join("\n"),
  );
}

function sleep(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));