text: describe('Random API:', function () {
      describe('#randomColor()', function () {
          it(`/^#[0-9a-fA-F]$/.test(outils.randomColor()) should return true`, function () {
              assert(/^#[0-9a-fA-F]{6}$/.test(outils.randomColor()))
          });
      });
  
      describe('#randomNum()', function () {
          it(`10 <= outils.randomNum(10, 1000) <= 100 should return true`, function () {
              let num = outils.randomNum(10, 1000)
              assert(num <= 1000 && num > 10)
          });
      });
  })