dns2/test/test.js

A DNS Server and Client Implementation in Pure JavaScript with no dependencies.

const { inspect } = require('util');

let previous = Promise.resolve();

/**
 * super tiny testing framework
 *
 * @author Liu song <hi@lsong.org>
 * @github https://github.com/song940
 */
const test = (title, fn) => {
  previous = previous.then(async() => {
    try {
      await fn();
      console.log(color(` ✔  ${title}`, 32));
    } catch (err) {
      console.error(color(` ✘  ${title}`, 31));
      console.log();
      console.log(color(`   ${err.name}: ${err.message}`, 31));
      console.error(color(`   expected: ${inspect(err.expected)}`, 32));
      console.error(color(`     actual: ${inspect(err.actual)}`, 31));
      console.log(err.stack);
      console.log();
      process.exit(1);
    }
  });
  return previous;
};

function color(str, c) {
  return `\x1b[${c}m${str}\x1b[0m`;
}

module.exports = test;