beforeEach(function () {

    html = '<div class="dropdown">'+
              '<div class="trigger" >trigger</div>'+
              '<div class="dropdown">body</div>'+
           '<div>';

    inject(function ($compile,$rootScope) {

        scope    = $rootScope.$new();
        element  = angular.element(html);
        compiled = $compile(element);

        compiled(scope);
        scope.$digest();

        // HERE NOT WORKING
        var trigger == element.find('div.trigger');
        var dropdown == element.find('.dropdown');

        // trigger and dropdown have both length 0

    });

    // Test doesn't pass
    it('should find the right element'),function () {
        expect(trigger.hasClass('trigger')).toBe(true);
    }

});

我正在尝试单元测试一个指令，但是我不能逐个找到元素。

我想要找到像以下这样的元素：

var trigger == element.find('div.trigger') // doesn't find anything.

但现在我只能这样做：

var triggers = element.find('div') // return an array of length 2.
var trigger = triggers[0];

我如何按类找到一个元素？