javascript - Protractor js，中继器不遍历 'result'

Question

在我的 protractor.test.js 中

it('should make sure that there are listings on the page', function()
{
    var count = element.all(by.repeater('res in result'));
    count.then(function(result){
    expect(result.length).toBeGreaterThan(0);
    }, 5000);

})

在我的 index.html 中

  <div class="item item-text-wrap" ng-click="post($event,res)"  ng-repeat="res in result"  ng-controller="recommendedJobsCtrl" ui-sref="menu.jobDetails" >

问题是它说期望 0 大于 0。但是当我在测试中将它更改为 res 或任何其他词时，它仍然给我相同的答案。我不认为它在读我的结果

Answer 1

我同意 igniteram's answer 的部分内容你应该使用 count() , 但您不能在 ElementArrayFinder 上使用预期条件(这是 element.all 返回的)。

相反，您也可以尝试使用辅助函数，该函数取自 alecxe's answer on this question .

// in my helper file Util.js

// wait for X number of elements
Util.prototype.presenceOfAll = function (elem, num) {
    console.log('Waiting for elements ' + elem.locator() + ' to have a count of ' + num);
    return browser.wait(function () {
        return elem.count().then(function (count) {
            return count >= num;
        });
    }, 5000, 'Failed waiting for ' + elem.locator() + ' to have ' + num + ' total items');
};

用法:

var userNav = element.all(by.css('li.navbar-item'));
// wait for userNav to have 4 elements/buttons
Util.presenceOfAll(userNav, 4).then(function () {
    // your code
});

另请注意 Protractor 补丁 expect隐式处理 promise ，所以你不需要使用 .then()在 .count() 之后除非你在做别的事情。所以将其应用于您的代码，我会这样修改它:

it('should make sure that there are listings on the page', function() {
    var count = element.all(by.repeater('res in result'));
    Util.presenceOfAll(count, 5); // change 5 for whatever number should be there
    expect(count.count()).toEqual(5);

    // could also have been written as this since presenceOfAll returns a promise
    Util.presenceOfAll(count, 5).then(function() { 
         expect(count.count()).toEqual(5);
    });
});