Scriptable describe + test

test.js

exports.describe = async (name, callback) => {
  const output = [];
  const test = async (name, callback) => {
    const testStartTime = Date.now();
    const testResult = await callback();
    const testTime =
      Date.now() - testStartTime;
    output.push(
      `• ${name} (${testTime}ms): ${
        testResult ? '✅' : '❌'
      }`
    );
  };
  const suiteStartTime = Date.now();
  await callback(test);
  const totalTime =
    Date.now() - suiteStartTime;
  output.push(`${totalTime}ms total`);
  const alert = new Alert();
  alert.title = name;
  alert.message = output.join('\n');
  alert.addAction('Done');
  alert.present();
};