量角器，AngularJS，解析 - 量角器不会等待角度来解决 [英] Protractor, AngularJS, Parse -- Protractor does not wait for Angular to resolve
问题描述
我是新来量角器和AngularJS。我使用的后端解析。试图做一个非常简单的测试：
I am new to Protractor and AngularJS. I'm using Parse on the back end. Trying to do a very simple test:
describe('Test', function () {
beforeEach(function () {
browser.get('index.html#/example')
});
it('should have a button', function () {
expect(element(by.css('#test321')).isElementPresent()).toBe(true); //fails
}); ...
测试失败。该元件处于template.html：
The test fails. The element is in template.html:
...
<body>
<button id="test321">stuff</button>
...
它是由角路线加载。这条路线也是从后端加载数据：
It is loaded by angular-route. This route also loads data from back end:
...
config(['$routeProvider', function ($routeProvider) {
$routeProvider.
when('/example', {
templateUrl: 'template.html',
controller: 'templateCtrl',
resolve: {
data: 'dataService' //Data is loaded from Parse. This line causes the problem
}...
的问题是由引起数据：上面的行。如果我采取的线路输出，或使其返回静态结果，它工作正常。另外，如果我提出这个元素的index.html它的工作原理也是如此。
The problem is caused by the "data:" line above. If I take that line out, or have it return static result it works fine. Also if I move this element index.html it works as well.
这似乎是一个时间问题。不过根据文档量角器（或专门isElement present）定位元素之前等待各项决议。
This seems like a timing issue. However according to the documentation protractor (or specifically isElementPresent) waits for all resolutions before locating elements.
我跺着脚。非常感谢任何帮助。
I'm stomped. Many thanks for any help.
更新：根据这这是在量角器1.2解决了，但我上1.4。很奇怪的。
Update: According to this this was solved in Protractor 1.2, but I'm on 1.4. Very strange.
推荐答案
因为它是一个时机的问题，解决方法可以等待元素是present你断言，这是present前：
Since it's a timing issue, a workaround can be to wait for the element to be present before you assert that it's present:
describe('Test', function () {
beforeEach(function () {
browser.get('index.html#/example')
});
it('should have a button', function () {
browser.wait(function() {
return $('#test321').isPresent(); // keeps waiting until this statement resolves to true
}, timeToWaitInMilliseconds, 'message to log to console if element is not present after that time');
expect($('#test321').isPresent()).toBe(true);
}); ...
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