Function testBin

test/helpers/test-bin.js:31–110

(testArgs = [], options = {})

};

export const testBin = (testArgs = [], options = {}) => {
  const cwd = process.cwd();
  const env = {
    WEBPACK_CLI_HELP_WIDTH: 2048,
    NODE_ENV: process.env.NODE_ENV,
  };

  if (typeof testArgs === "string") {
    testArgs = testArgs.split(" ");
  }

  let args;

  if (testArgs.includes("--help")) {
    args = [webpackDevServerPath, ...testArgs];
  } else {
    const configOptions = testArgs.includes("--config")
      ? []
      : ["--config", basicConfigPath];

    args = [webpackDevServerPath, ...configOptions, ...testArgs];
  }

  return new Promise((resolve, reject) => {
    const outputKillStr =
      options.outputKillStr ||
      /Content not from webpack is served|For using 'serve' command you need to install/;
    const subprocess = execa("node", args, {
      cwd,
      env,
      stdio: "pipe",
      maxBuffer: Infinity,
      reject: false,
      ...options,
    });

    subprocess.stdout.pipe(
      new Writable({
        write(chunk, encoding, callback) {
          const str = chunk.toString();
          const output = util.stripVTControlCharacters(str);

          if (outputKillStr.test(output)) {
            processKill(subprocess);
          }

          callback();
        },
      }),
    );

    subprocess.stderr.pipe(
      new Writable({
        write(chunk, encoding, callback) {
          const str = chunk.toString();
          const output = util.stripVTControlCharacters(str);

          if (outputKillStr.test(output)) {