testing.js

function contains(arr, element) {
  var i = arr.length;
  var elementToInt = parseInt(element, 10);
  while (i--) {
    if ( arr[i] === elementToInt) {
      return true;
    }
  }
  return false;
}

function showAll(a){
  for (var i = a.length - 1; i >= 0; i--) {
    // display all elements
    document.getElementById(a[i].id).style.display = 'inline-block';
  }
}

function getMatch(obj, cat, country){
  var match = [];

  if ( (cat !== '0') && (country !== '0') ){
    for( var i=0; i<obj.length;i++){
      document.getElementById(obj[i].id).style.display = 'none';
      if ( (contains( obj[i].categories, cat) === true) && (obj[i].owner.nationality === country) ){
        document.getElementById(obj[i].id).style.display = 'inline-block';
      }
    }
  }
  else{
    if(cat === '0'){
      for( var j=0; j<obj.length;j++){
        document.getElementById(obj[j].id).style.display = 'none';
        if (obj[j].owner.nationality === country) {
          document.getElementById(obj[j].id).style.display = 'inline-block';
        }
      }
    }
    else{
      for( var k=0; k<obj.length;k++){
        document.getElementById(obj[k].id).style.display = 'none';
        if (contains( obj[k].categories, cat) === true) {
          document.getElementById(obj[k].id).style.display = 'inline-block';
        }
      }
    }
  }
}

testing_html_jasmine.js

describe("searchResult", function() {
  var entry = [{'id': 170, "owner": {"nationality": 2},'categories': [2, 3, 1]}, {'id': 168, "owner": {"nationality": 5}, 'categories': []}, {'id': 153, "owner": {"nationality": 1}, 'categories': [1, 5]} ];
  var fixture = '<div style="display: inline-block;" id="170"></div><div style="display: inline-block;" id="168"></div><div style="display: inline-block;" id="153"></div>';
  document.write(fixture);

  it("Giving an HTML with 'display: inline-block', due to mismatch, method turns into 'display:none'", function() {
    getMatch(entry, 1, 1);
    expect(document.getElementById('170').style.display).toEqual('none');
  });


});