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我的指令在浏览器中运行良好。这只是我似乎无法工作的单元测试。该指令创建一个简单的滑块，并在范围上设置一些值，包括min.

在单元测试中， $compile(element) 似乎只是将其包装在 jqlite 中，而没有对其进行任何其他操作。好吧，它显然也给了它一个范围，但范围上什么都没有。该模板也未应用。

我的单元测试：

describe('Given the slider directive', function () {

beforeEach(function() {
    module('app');
});

beforeEach(inject(function($httpBackend){
    // necessary because .whenGET().passThrough() doesn't seem to work
    $httpBackend.whenGET('partials/slider.html').respond('<div class="slider horizontal">'+
        '<div class="min">{{min}}</div>'+
        '<div class="max">{{max}}</div>'+
        '<a slider-handle class="handle" ng-class="{focus: focus}"'+
        'role="slider"'+
        'aria-valuemin="{{min}}" aria-valuemax="{{max}}" aria-valuenow="{{slider.value}}" aria-labelledby="{{id}}-label" aria-controls="{{id}}-value"'+
        'tabindex="0"'+
        'ng-keydown="handleKeyDown($event)" ng-keypress="handleKeyPress($event)"'+
        'ng-focus="handleFocus($event)" ng-blur="handleBlur($event)"'+
        'ng-mousedown="handleMouseDown($event)"'+
        'ng-style="{\'left\': slider.left}"></a>'+
        '<div ng-style="{\'left\': slider.left}" ng-show="showVals" id="{{id}}-value" class="slider-value" role="presentation">{{slider.value}}</div>'+
    '</div>');
}));

it('should compile and set the scope correctly', inject(function($compile, $rootScope) {
    var element = $compile('<div slider min="6" max="18" step="1" ng-model="value"></div>')($rootScope);
    $rootScope.$digest();

    var iScope = element.scope();

    iScope.$digest();

    console.log(iScope);
    console.log(iScope.min);
    console.log(element.html());
    console.log(element);

    expect(element.html()).toContain("6");
    expect(element.find('div[class=min]').html()).toBe(6);
    expect(iScope.min).toBe(6);

}));
});

这个的控制台输出是：

Scope{$id: '00T', $$childTail: null, $$childHead: null, $$prevSibling: null, $$nextSibling: null, $$watchers: null, $parent: null, $$phase: null, $root: Scope{$id: '00T', $$childTail: null, $$childHead: null, $$prevSibling: null, $$nextSibling: null, $$watchers: null, $parent: null, $$phase: null, $root: Scope{$id: ..., $$childTail: ..., $$childHead: ..., $$prevSibling: ..., $$nextSibling: ..., $$watchers: ..., $parent: ..., $$phase: ..., $root: ..., this: ..., $$destroyed: ..., $$asyncQueue: ..., $$postDigestQueue: ..., $$listeners: ..., $$isolateBindings: ..., safeApply: ...}, this: Scope{$id: ..., $$childTail: ..., $$childHead: ..., $$prevSibling: ..., $$nextSibling: ..., $$watchers: ..., $parent: ..., $$phase: ..., $root: ..., this: ..., $$destroyed: ..., $$asyncQueue: ..., $$postDigestQueue: ..., $$listeners: ..., $$isolateBindings: ..., safeApply: ...}, $$destroyed: false, $$asyncQueue: [], $$postDigestQueue: [], $$listeners: Object{}, $$isolateBindings: Object{}, safeApply: function (a) { ... }}, this: Scope{$id: '00T', $$childTail: null, $$childHead: null, $$prevSibling: null, $$nextSibling: null, $$watchers: null, $parent: null, $$phase: null, $root: Scope{$id: ..., $$childTail: ..., $$childHead: ..., $$prevSibling: ..., $$nextSibling: ..., $$watchers: ..., $parent: ..., $$phase: ..., $root: ..., this: ..., $$destroyed: ..., $$asyncQueue: ..., $$postDigestQueue: ..., $$listeners: ..., $$isolateBindings: ..., safeApply: ...}, this: Scope{$id: ..., $$childTail: ..., $$childHead: ..., $$prevSibling: ..., $$nextSibling: ..., $$watchers: ..., $parent: ..., $$phase: ..., $root: ..., this: ..., $$destroyed: ..., $$asyncQueue: ..., $$postDigestQueue: ..., $$listeners: ..., $$isolateBindings: ..., safeApply: ...}, $$destroyed: false, $$asyncQueue: [], $$postDigestQueue: [], $$listeners: Object{}, $$isolateBindings: Object{}, safeApply: function (a) { ... }}, $$destroyed: false, $$asyncQueue: [], $$postDigestQueue: [], $$listeners: Object{}, $$isolateBindings: Object{}, safeApply: function (a) { ... }}
undefined
''
{0: <div slider="" min="6" max="18" step="1" ng-model="value" class="ng-scope"></div>, length: 1}

我有一个带有整个（稍微清理过的）代码的 JSFiddle，但它神秘地甚至没有通过 $compile，这与我在本地遇到的问题不同。不确定 JSFiddle 是否有用，因为现在我有两个神秘的问题而不是一个。

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1 回答 1

4

在我处理其他事情时几个月没有答案或评论，现在我找到了答案。这真的很简单：

$httpBackend.flush();

在单元测试中使用$httpBackend.whenGET()时，总是需要刷新。因此，当您使用 templateUrl 测试指令时，您需要在 $compile() 之后执行 flush()。

我希望这对那里的人有用。

于 2014-10-14T15:25:12.757 回答