DNS Testing

Test your live DNS with Jest.

Small preconfigured DNS resolver to be used with Jest.

Features

• Express the DNS functionality without the DNS protocol limitations.
• Always pings the public/private server, it does not use the local cache.
• Examples that cover most use cases.

Install

npm install --save-dev jest dns-testing

Options

DNS Servers

export PUBLIC_DNS_SERVER_IP=*.*.*.* # optional
export PRIVATE_DNS_SERVER_IP=*.*.*.* # your private DNS
npm run test

Concurrency via Jest

Overflowing DNS servers with requests can cause random test failures, a concurrency of 2 to 5 is recomended.

module.exports = {
  verbose: true,
  maxConcurrency: 2,
};

Future

• retry mechanism