Angularjs e2e测试在代码传递中失败，但不在本地

在我们的CI中使用Heroku和Codeship。一直在使用量角器在Angular中创建web应用程序进行测试。在本地一切都运行良好，但当它到达CI时，一些测试将失败。奇怪的是，失败的是随机的：有时它们会失败，然后刷新构建使它们再次通过。以下是错误代码：

Running "protractor:your_target" (protractor) task Starting selenium standalone server... [launcher] Running 1 instances of WebDriver Selenium standalone server started at http://10.0.3.170:40348/wd/hub .....F..F....  Failures:  1) Application Filter should sort stores by number 0-9 Message: Error: Index out of bound. Trying to access element at index: 0, but there are only 0 elements that match locator By.cssSelector(".name") Stacktrace: Error: Index out of bound. Trying to access element at index: 0, but there are only 0 elements that match locator By.cssSelector(".name") ==== async task ==== Asynchronous test function: it() Error at [object Object].<anonymous> (/home/rof/src/github.com/DigitalInnovation/staffdirectory/test/e2e/app.js:83:34) Error at [object Object].<anonymous> (/home/rof/src/github.com/DigitalInnovation/staffdirectory/test/e2e/app.js:76:9) at [object Object].<anonymous> (/home/rof/src/github.com/DigitalInnovation/staffdirectory/test/e2e/app.js:50:5) at Object.<anonymous> (/home/rof/src/github.com/DigitalInnovation/staffdirectory/test/e2e/app.js:3:1)  2) Application Store Name And Number should show 4 store numbers Message: Expected 0 to be 4. Stacktrace: Error: Failed expectation at [object Object].<anonymous> (/home/rof/src/github.com/DigitalInnovation/staffdirectory/test/e2e/app.js:112:34)  Finished in 42.619 seconds 13 tests, 19 assertions, 2 failures  Shutting down selenium standalone server. [launcher] 0 instance(s) of WebDriver still running [launcher] chrome #1 failed 2 test(s) [launcher] overall: 2 failed spec(s) [launcher] Process exited with error code 1 >>  Fatal error: protractor exited with code: 1

任何帮助都将不胜感激。“索引越界”错误我认为可以通过更多的睡眠来修复，但对另一个错误没有任何线索……我们正在使用模拟数据进行这些测试

    var env = require('./mockservice.js');

describe("Application", function() {
    var ptor;
    beforeEach(function() {
        ptor = browser;
        ptor.addMockModule('MockServicesModule', env.httpBackendMock);
        ptor.ignoreSynchronization = false;
        browser.get('/');
        ptor.ignoreSynchronization = true;
        ptor.sleep(1000);
    });

    it('should verify the title', function() {
        ptor.getTitle().then(function(title) {
            expect(title).toBe('Store Directory');
        });
    });

    describe("Search Bar", function() {

        it('should enable input of data and return search result in list instantly', function() {
            var searchBar = element.all(by.css('.store_text'));
            searchBar.click();
            searchBar.sendKeys("argyle");
            var name = element.all(by.css('.name'));
            expect(name.get(0).getText()).toEqual('Argyle St. Glasgow');
            var number = element.all(by.css('.number'));
            expect(number.get(0).getText()).toEqual('657');
        });

        it('should allow deletion of data that should instantly return all stores', function() {
            var searchBar = element.all(by.css('.store_text'));
            searchBar.click();
            searchBar.sendKeys("argyle");
            ptor.sleep(1000);
            searchBar.sendKeys(protractor.Key.BACK_SPACE);
            searchBar.sendKeys(protractor.Key.BACK_SPACE);
            searchBar.sendKeys(protractor.Key.BACK_SPACE);
            searchBar.sendKeys(protractor.Key.BACK_SPACE);
            searchBar.sendKeys(protractor.Key.BACK_SPACE);
            searchBar.sendKeys(protractor.Key.BACK_SPACE);
            var name = element.all(by.css('.name'));
            expect(name.get(0).getText()).toEqual('Aberdeen');
            var number = element.all(by.css('.number'));
            expect(number.get(0).getText()).toEqual('2587');
        });
    });

    describe("Filter", function() {

        it('should sort stores by name a-z', function() {
            var filterBtn = element.all(by.css('.sort_text'));
            filterBtn.click();
            var azButton = element.all(by.cssContainingText('option', 'Stores A-Z'));
            azButton.click();
            ptor.sleep(1000);
            var nameaz = element.all(by.css('.name'));
            expect(nameaz.get(0).getText()).toEqual('Aberdeen');
            var numberaz = element.all(by.css('.number'));
            expect(numberaz.get(0).getText()).toEqual('2587');
        });

        it('should sort stores by name z-a', function() {
            var filterBtn = element.all(by.css('.sort_text'));
            filterBtn.click();
            var zaButton = element.all(by.cssContainingText('option', 'Stores Z-A'));
            zaButton.click();
            ptor.sleep(1000);
            var nameza = element.all(by.css('.name'));
            expect(nameza.get(0).getText()).toEqual('Ayr');
            var numberza = element.all(by.css('.number'));
            expect(numberza.get(0).getText()).toEqual('2024');
        });

        it('should sort stores by number 0-9', function() {
            var filterBtn = element.all(by.css('.sort_text'));
            filterBtn.click();
            var noButton = element.all(by.cssContainingText('option', 'Store Number 0-9'));
            noButton.click();
            ptor.sleep(1000);
            var name09 = element.all(by.css('.name'));
            expect(name09.get(0).getText()).toEqual('Anniesland');
            var number09 = element.all(by.css('.number'));
            expect(number09.get(0).getText()).toEqual('397');
        });

        it('should sort stores by number 9-0', function() {
            var filterBtn = element.all(by.css('.sort_text'));
            filterBtn.click();
            var noButton = element.all(by.cssContainingText('option', 'Store Number 9-0'));
            noButton.click();
            ptor.sleep(1000);
            var name90 = element.all(by.css('.name'));
            expect(name90.get(0).getText()).toEqual('Aberdeen');
            var number90 = element.all(by.css('.number'));
            expect(number90.get(0).getText()).toEqual('2587');
        });
    });

    describe("Store Name And Number", function() {

        it('should show 4 store names', function() {
        var names = element.all(by.repeater('store in stores'));
        ptor.sleep(1000);
        expect(names.count()).toBe(4);
        });

        it('should show 4 store numbers', function() {
        var number04 = element.all(by.repeater('store in stores'));
        ptor.sleep(1000);
        expect(number04.count()).toBe(4);
        });

        it('should show details of the store roles and numbers when either the store name or store number is clicked on', function () {
            var label = element.all(by.id('label')).first();
            label.click();
            ptor.sleep(1000);
            var roles = element.all(by.repeater('contact in storeInfo.contacts'));
            expect(roles.count()).toBe(2);
        });

        it('should close back to the main list after expanding more store details', function () {
            var label = element.all(by.id('label')).first();
            label.click();
            ptor.sleep(1000);
            label.click();
            ptor.sleep(1000);
            var stores = element.all(by.repeater('store in stores'));
            expect(stores.count()).toBe(4);
        });
    });

    describe("Store search", function() {

        it('should show search results instantly', function() {
            var label = element.all(by.id('label')).first();
            label.click();
            ptor.sleep(1000);
            var storeSearch = element.all(by.css('.role_text'));
            storeSearch.click();
            ptor.sleep(1000);
            storeSearch.sendKeys("service");
            ptor.sleep(1000);
            var roles = element.all(by.repeater('contact in storeInfo.contacts'));
            expect(roles.count()).toBe(1);
        });

        it('should allow deletion of data to show an unfiltered list of roles', function() {
            var label = element.all(by.id('label')).get(1);
            label.click();
            ptor.sleep(1000);
            var storeSearch = element.all(by.css('.role_text'));
            storeSearch.click();
            ptor.sleep(1000);
            storeSearch.sendKeys("cold");
            ptor.sleep(1000);
            var roles = element.all(by.repeater('contact in storeInfo.contacts'));
            expect(roles.count()).toBe(1);
            storeSearch.sendKeys(protractor.Key.BACK_SPACE);
            storeSearch.sendKeys(protractor.Key.BACK_SPACE);
            storeSearch.sendKeys(protractor.Key.BACK_SPACE);
            storeSearch.sendKeys(protractor.Key.BACK_SPACE);
            ptor.sleep(1000);
            expect(roles.count()).toBe(2);
        });
    });
});