Jasmine test for hidden element

gistfile1.txt

describe("Search", function() {
 
  //css should be included in Karma config
 
  var divElem = document.createElement('div');
  divElem.id = 'sample-div';
  document.body.appendChild(divElem);

   it("sample div should be hidden", function() {
   
    //the hidden class should be in the css
    divElem.className += " hidden";
    
    var elemStyle = window.getComputedStyle(divElem);
    
    expect(elemStyle.getPropertyValue('display')).toEqual('none');
    
   });
 
 
 });