javascript - Protractor - 当元素不可见且不执行 "else"条件时测试失败

Question

我尝试使用“if/else 语句”来运行流程，这取决于某些元素是否可见。

但是在这个元素不可见的情况下，它不会遇到“其他条件”并且所有测试用例都失败了。

请大家帮忙!谢谢。

测试用例:

   it('New Client LiveSite - Payments - Perform a payment by PayPal', function () {
   browser.wait(EC.visibilityOf(element(by.binding("buttonText"))), 30000);
    element(by.binding("buttonText")).click();

            var mainWindow;
            browser.getAllWindowHandles().then(
                function(handles) {
                    mainWindow = handles[0]; //at this point there should be only 1 window
                }
            );

            browser.getAllWindowHandles().then(function (handles) {    
               handles.forEach(function(handle) {
                 if (handle !== mainWindow) {
                    browser.switchTo().window(handle)
                    var loadLogin = element(by.id("loadLogin"));
                    element.all(by.id('loadLogin')).then(function(){ 
                        expect(browser.driver.getCurrentUrl()).toContain('www.paypal.com');
                        browser.sleep(10000); 

                    loadLogin.isDisplayed().then(function(result) {
                          if (result === true) {
                                loadLogin.click();
                                browser.driver.sleep(3000);
                                element(by.id("login_email")).sendKeys("username");
                                element(by.id("login_password")).sendKeys("pass");
                                browser.driver.sleep(1000);
                                element(by.id("submitLogin")).click();
                                browser.driver.sleep(5000);
                                element(by.id("submit.x")).click();
                                browser.driver.sleep(10000);
                                console.log("-=-=- first condition - I'm not logged-in -=-=-");
                            } else {
                                 browser.driver.sleep(3000);
                                 element(by.id("login_email")).clear();
                                 browser.driver.sleep(1000);
                                 element(by.id("login_email")).sendKeys("username");
                                 element(by.id("login_password")).sendKeys("pass");
                                 browser.driver.sleep(1000);
                                 element(by.id("submitLogin")).click();
                                 browser.driver.sleep(10000);
                                 element(by.id("submit.x")).click();
                                 browser.driver.sleep(10000);
                                 console.log("-=-=- second condition - I'm already logged-in -=-=-")
                            }
                        });
                    });
                 }
            });
        });

            browser.getAllWindowHandles().then(function (handles) {
                browser.switchTo().window(handles[0]);
            });

});

错误:[已编辑]

 New Client LiveSite - Payments - Perform a payment by PayPal - fail
Error occurred in loadLogin.isDisplayed: { [NoSuchElementError: No element found
 using locator: By.id("loadLogin")]
  code: 7,
  state: 'no such element',
  message: 'No element found using locator: By.id("loadLogin")',
  name: 'NoSuchElementError',
  stack: 'NoSuchElementError: No element found using locator: By.id("loadLogin")
\n    at new bot.Error (C:\\Users\\idan\\AppData\\Roaming\\npm\\node_modules\\pr
otractor\\node_modules\\selenium-webdriver\\lib\\atoms\\error.js:113:18)\n    at
 C:\\Users\\idan\\AppData\\Roaming\\npm\\node_modules\\protractor\\lib\\element.
js:706:15\n    at [object Object].promise.ControlFlow.runInFrame_ (C:\\Users\\id
an\\AppData\\Roaming\\npm\\node_modules\\protractor\\node_modules\\selenium-webd
river\\lib\\webdriver\\promise.js:1877:20)\n    at [object Object].promise.Callb
ack_.goog.defineClass.notify (C:\\Users\\idan\\AppData\\Roaming\\npm\\node_modul
es\\protractor\\node_modules\\selenium-webdriver\\lib\\webdriver\\promise.js:246
4:25)\n    at [object Object].promise.Promise.notify_ (C:\\Users\\idan\\AppData\
\Roaming\\npm\\node_modules\\protractor\\node_modules\\selenium-webdriver\\lib\\
webdriver\\promise.js:563:12)\n    at Array.forEach (native)\n    at Object.goog
.array.forEach (C:\\Users\\idan\\AppData\\Roaming\\npm\\node_modules\\protractor
\\node_modules\\selenium-webdriver\\lib\\goog\\array\\array.js:203:43)\n    at [
object Object].promise.Promise.notifyAll_ (C:\\Users\\idan\\AppData\\Roaming\\np
m\\node_modules\\protractor\\node_modules\\selenium-webdriver\\lib\\webdriver\\p
romise.js:552:16)\n    at goog.async.run.processWorkQueue (C:\\Users\\idan\\AppD
ata\\Roaming\\npm\\node_modules\\protractor\\node_modules\\selenium-webdriver\\l
ib\\goog\\async\\run.js:125:21)\n    at runMicrotasksCallback (node.js:337:7)\nE
rror\n    at [object Object].ElementArrayFinder.applyAction_ (C:\\Users\\idan\\A
ppData\\Roaming\\npm\\node_modules\\protractor\\lib\\element.js:403:21)\n    at
[object Object].self.(anonymous function) [as isDisplayed] (C:\\Users\\idan\\App
Data\\Roaming\\npm\\node_modules\\protractor\\lib\\element.js:76:19)\n    at [ob
ject Object].self.(anonymous function) [as isDisplayed] (C:\\Users\\idan\\AppDat
a\\Roaming\\npm\\node_modules\\protractor\\lib\\element.js:733:11)\n    at c:\\a
utomation\\tests\\paymentsNewClient.js:71:39\n    at [object Object].promise.Con
trolFlow.runInFrame_ (C:\\Users\\idan\\AppData\\Roaming\\npm\\node_modules\\prot
ractor\\node_modules\\selenium-webdriver\\lib\\webdriver\\promise.js:1877:20)\n
   at [object Object].promise.Callback_.goog.defineClass.notify (C:\\Users\\idan
\\AppData\\Roaming\\npm\\node_modules\\protractor\\node_modules\\selenium-webdri
ver\\lib\\webdriver\\promise.js:2464:25)\n    at [object Object].promise.Promise
.notify_ (C:\\Users\\idan\\AppData\\Roaming\\npm\\node_modules\\protractor\\node
_modules\\selenium-webdriver\\lib\\webdriver\\promise.js:563:12)\n    at Array.f
orEach (native)\n    at Object.goog.array.forEach (C:\\Users\\idan\\AppData\\Roa
ming\\npm\\node_modules\\protractor\\node_modules\\selenium-webdriver\\lib\\goog
\\array\\array.js:203:43)\n    at [object Object].promise.Promise.notifyAll_ (C:
\\Users\\idan\\AppData\\Roaming\\npm\\node_modules\\protractor\\node_modules\\se
lenium-webdriver\\lib\\webdriver\\promise.js:552:16)' }

Answer 1

错误提示未找到 loadLogin 元素。它并没有说它不可见。

 NoSuchElementError: No element found using locator: By.id("loadLogin")
   Stacktrace:
     NoSuchElementError: No element found using locator: By.id("loadLogin")

看起来您打算在切换新窗口后与 loadLogin 元素进行交互，但您似乎也在尝试在切换之前找到元素 loadLogin到窗口。在测试开始时检查下面的代码。也许您需要切换到存在 loadLogin 元素的窗口，然后查找它。

 it('New Client LiveSite - Payments - Perform a payment by PayPal', function () {
        var loadLogin = element(by.id("loadLogin"));
         browser.sleep(2000);

编辑 1

当元素不可见时，可能会抛出一些异常，这就是为什么您永远不会遇到 else 条件的原因。也许添加这样的东西，

loadLogin.isDisplayed().then(function(result) {
      //keep your code here
   }, function(err) {
       console.log('Error occurred in loadLogin.isDisplayed:', err);
  });