text: describe('with default variables', function() {
  
    var defaultVariables = {
      name: 'John'
    };
  
    beforeEach(function(done) {
      i18n.init(
        i18n.functions.extend(opts, { defaultVariables: defaultVariables }),
        function(t) { done(); }
      );
    });
  
    it('it should use default variable', function() {
      expect(i18n.t('Hello __name__')).to.be('Hello John');
    });
  
    it('it should replace default variable', function() {
      expect(i18n.t('Hello __name__', {name: 'Ben'})).to.be('Hello Ben');
    });
  
  });
  