Angular directive test using mocha.

directive.test.js

describe('My directive', function () {
  var scope, $compile;

  beforeEach(module('app.directives'));

  beforeEach(inject(function ($injector) {
    $compile = $injector.get('$compile');
    var $rootScope = $injector.get('$rootScope');

    scope = $rootScope.$new();
  }));

  afterEach(function () {
    scope.$destroy();
  });

  it('should do something', function () {
    $compile('<my-directive></my-directive>')(scope);
  });
});