text: 
  /**
   * Module dependencies.
   */
  
  var assert = require('assert');
  var dnsDomainLevels = require('../lib/dnsDomainLevels');
  
  describe('dnsDomainLevels(host)', function () {
  
    var tests = [
      ["www", 0],
      ["www.netscape", 1],
      ["www.netscape.com", 2]
    ];
  
    tests.forEach(function (test) {
      var expected = test.pop();
      it('should return `' + expected +'` for "' + test.join('", "') + '"', function () {
        assert.equal(expected, dnsDomainLevels(test[0]));
      });
    });
  
  });
  