Function runWatch

packages/jest-core/src/cli/index.ts:250–285

(
  contexts: Array<TestContext>,
  _configs: Array<Config.ProjectConfig>,
  hasDeprecationWarnings: boolean,
  globalConfig: Config.GlobalConfig,
  outputStream: WriteStream,
  hasteMapInstances: Array<IHasteMap>,
  filter?: Filter,
)

};

const runWatch = async (
  contexts: Array<TestContext>,
  _configs: Array<Config.ProjectConfig>,
  hasDeprecationWarnings: boolean,
  globalConfig: Config.GlobalConfig,
  outputStream: WriteStream,
  hasteMapInstances: Array<IHasteMap>,
  filter?: Filter,
) => {
  if (hasDeprecationWarnings) {
    try {
      await handleDeprecationWarnings(outputStream, process.stdin);
      return await watch(
        globalConfig,
        contexts,
        outputStream,
        hasteMapInstances,
        undefined,
        undefined,
        filter,
      );
    } catch {
      exit(0);
    }
  }

  return watch(
    globalConfig,
    contexts,
    outputStream,
    hasteMapInstances,
    undefined,
    undefined,
    filter,
  );
};

const runWithoutWatch = async (
  globalConfig: Config.GlobalConfig,