title: 'Undefined' result in Javascript testing
body: <p>I am creating a Kata on Codewars. Its objective is to make a Player with certain attributes and values.
  This is the complete working solution,</p>
  
  <pre><code>function Player(name, position, age, dribbling, pass, shoot) {
   this.name = name;
   this.position = position;
   this.age = age;
   this.dribbling = dribbling;
   this.pass = pass;
   this.shoot = shoot;
  } 
  
  var myPlayer = new Player('Player', 'Right Winger', 25, 75, 90, 65);
  </code></pre>
  
  <p>And this is the Test Cases I have to provide to validate the complete working solution in order to publish the Kata, </p>
  
  <pre><code>describe('Player class', function () {
    it('should create a Player', function (){
      var myPlayer = new Player()
        Test.assertEquals(myPlayer.name, 'Player')
        Test.assertEquals(myPlayer.position, 'Right Winger')
        Test.assertEquals(myPlayer.age, 25)
        Test.assertEquals(myPlayer.dribbling, 75)
        Test.assertEquals(myPlayer.pass, 90)
        Test.assertEquals(myPlayer.shoot, 65)
      })
  })`
  </code></pre>
  
  <p>And this is the result I get when I run the 'Validate Solution' button,</p>
  
  <pre><code>Player class
  should create a Player
  Expected: Player, instead got: undefined
  Expected: Right Winger, instead got: undefined
  Expected: 25, instead got: undefined
  Expected: 75, instead got: undefined
  Expected: 90, instead got: undefined
  Expected: 65, instead got: undefined
  
  0 Passed
  6 Failed
  0 Errors
  </code></pre>
  
  <p>What am I doing wrong?</p>