I am doing pagination on the web page. In which 20 account has been load on the page and after clicking the button again another 20 account has been loaded. After third click button disappeared from the web page and all accounts has been loaded. But I am getting below error:
"org.openqa.selenium.StaleElementReferenceException: stale element reference: element is not attached to the page document"
Below is the code:
public static WebDriver driver;
public static List<WebElement> tarif;
public static Actions action;
public static boolean flag;
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
tarif = driver.findElements(By.xpath("//button[contains(text(),'tarife')]"));
flag = true;
while(flag) {
System.out.println(flag);
System.out.println(tarif.size());
if (tarif.size() > 0) {
//try {
Actions action = new Actions(driver);
action.moveToElement(tarif.get(0)).build().perform();
Thread.sleep(5000);
tarif.get(0).click();
} else {
flag = false;
}
}
Thread.sleep(5000);
driver.quit();
Can you all please help me regarding above?
Stale element exception means element is there on web page but selenium could not interct that element , there are 2 ways to resolve that
1.Try with page refresh(driver.navigate().refresh();)
2.Just use loop element until click that element
I am trying to check if web page is loaded completed or not (i.e. checking that all the control is loaded) in selenium.
I tried below code:
new WebDriverWait(firefoxDriver, pageLoadTimeout).until(
webDriver -> ((JavascriptExecutor) webDriver).executeScript("return document.readyState").equals("complete"));
but even if page is loading above code does not wait.
I know that I can check for particular element to check if its visible/clickable etc but I am looking for some generic solution
As you mentioned if there is any generic function to check if the page has completely loaded through Selenium the answer is No.
First let us have a look at your code trial which is as follows :
new WebDriverWait(firefoxDriver, pageLoadTimeout).until(webDriver -> ((JavascriptExecutor) webDriver).executeScript("return document.readyState").equals("complete"));
The parameter pageLoadTimeout in the above line of code doesn't really reseambles to actual pageLoadTimeout().
Here you can find a detailed discussion of pageLoadTimeout in Selenium not working
Now as your usecase relates to page being completely loaded you can use the pageLoadStrategy() set to normal [ the supported values being none, eager or normal ] using either through an instance of DesiredCapabilities Class or ChromeOptions Class as follows :
Using DesiredCapabilities Class :
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.openqa.selenium.remote.DesiredCapabilities;
public class myDemo
{
public static void main(String[] args) throws Exception
{
System.setProperty("webdriver.gecko.driver", "C:\\Utility\\BrowserDrivers\\geckodriver.exe");
DesiredCapabilities dcap = new DesiredCapabilities();
dcap.setCapability("pageLoadStrategy", "normal");
FirefoxOptions opt = new FirefoxOptions();
opt.merge(dcap);
WebDriver driver = new FirefoxDriver(opt);
driver.get("https://www.google.com/");
System.out.println(driver.getTitle());
driver.quit();
}
}
Using ChromeOptions Class :
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;
import org.openqa.selenium.PageLoadStrategy;
public class myDemo
{
public static void main(String[] args) throws Exception
{
System.setProperty("webdriver.gecko.driver", "C:\\Utility\\BrowserDrivers\\geckodriver.exe");
FirefoxOptions opt = new FirefoxOptions();
opt.setPageLoadStrategy(PageLoadStrategy.NORMAL);
WebDriver driver = new FirefoxDriver(opt);
driver.get("https://www.google.com/");
System.out.println(driver.getTitle());
driver.quit();
}
}
You can find a detailed discussion in Page load strategy for Chrome driver (Updated till Selenium v3.12.0)
Now setting PageLoadStrategy to NORMAL and your code trial both ensures that the Browser Client have (i.e. the Web Browser) have attained 'document.readyState' equal to "complete". Once this condition is fulfilled Selenium performs the next line of code.
You can find a detailed discussion in Selenium IE WebDriver only works while debugging
But the Browser Client attaining 'document.readyState' equal to "complete" still doesn't guarantees that all the JavaScript and Ajax Calls have completed.
To wait for the all the JavaScript and Ajax Calls to complete you can write a function as follows :
public void WaitForAjax2Complete() throws InterruptedException
{
while (true)
{
if ((Boolean) ((JavascriptExecutor)driver).executeScript("return jQuery.active == 0")){
break;
}
Thread.sleep(100);
}
}
You can find a detailed discussion in Wait for ajax request to complete - selenium webdriver
Now, the above two approaches through PageLoadStrategy and "return jQuery.active == 0" looks to be waiting for indefinite events. So for a definite wait you can induce WebDriverWait inconjunction with ExpectedConditions set to titleContains() method which will ensure that the Page Title (i.e. the Web Page) is visible and assume the all the elements are also visible as follows :
driver.get("https://www.google.com/");
new WebDriverWait(driver, 10).until(ExpectedConditions.titleContains("partial_title_of_application_under_test"));
System.out.println(driver.getTitle());
driver.quit();
Now, at times it is possible though the Page Title will match your Application Title still the desired element you want to interact haven't completed loading. So a more granular approach would be to induce WebDriverWait inconjunction with ExpectedConditions set to visibilityOfElementLocated() method which will make your program wait for the desired element to be visible as follows :
driver.get("https://www.google.com/");
WebElement ele = new WebDriverWait(driver, 10).until(ExpectedConditions.visibilityOfElementLocated(By.xpath("xpath_of_the_desired_element")));
System.out.println(ele.getText());
driver.quit();
References
You can find a couple of relevant detailed discussions in:
Selenium IE WebDriver only works while debugging
Selenium how to manage wait for page load?
I use selenium too and I had the same problem, to fix that I just wait also for the jQuery to load.
So if you have the same issue try this also
((Long) ((JavascriptExecutor) browser).executeScript("return jQuery.active") == 0);
You can wrap both function in a method and check until both page and jQuery is loaded
Implement this, Its working for many of us including me. It includes Web Page wait on JavaScript, Angular, JQuery if its there.
If your Application is containing Javascript & JQuery you can write code for only those,
By define it in single method and you can Call it anywhere:
// Wait for jQuery to load
{
ExpectedCondition<Boolean> jQueryLoad = driver -> ((Long) ((JavascriptExecutor) driver).executeScript("return jQuery.active") == 0);
boolean jqueryReady = (Boolean) js.executeScript("return jQuery.active==0");
if (!jqueryReady) {
// System.out.println("JQuery is NOT Ready!");
wait.until(jQueryLoad);
}
wait.until(jQueryLoad);
}
// Wait for ANGULAR to load
{
String angularReadyScript = "return angular.element(document).injector().get('$http').pendingRequests.length === 0";
ExpectedCondition<Boolean> angularLoad = driver -> Boolean.valueOf(((JavascriptExecutor) driver).executeScript(angularReadyScript).toString());
boolean angularReady = Boolean.valueOf(js.executeScript(angularReadyScript).toString());
if (!angularReady) {
// System.out.println("ANGULAR is NOT Ready!");
wait.until(angularLoad);
}
}
// Wait for Javascript to load
{
ExpectedCondition<Boolean> jsLoad = driver -> ((JavascriptExecutor) driver).executeScript("return document.readyState").toString()
.equals("complete");
boolean jsReady = (Boolean) js.executeScript("return document.readyState").toString().equals("complete");
// Wait Javascript until it is Ready!
if (!jsReady) {
// System.out.println("JS in NOT Ready!");
wait.until(jsLoad);
}
}
Click here for Reference Link
Let me know if you stuck anywhere by implementing.
It overcomes the use of Thread or Explicit Wait.
public static void waitForPageToLoad(long timeOutInSeconds) {
ExpectedCondition<Boolean> expectation = new ExpectedCondition<Boolean>() {
public Boolean apply(WebDriver driver) {
return ((JavascriptExecutor) driver).executeScript("return document.readyState").equals("complete");
}
};
try {
System.out.println("Waiting for page to load...");
WebDriverWait wait = new WebDriverWait(Driver.getDriver(), timeOutInSeconds);
wait.until(expectation);
} catch (Throwable error) {
System.out.println(
"Timeout waiting for Page Load Request to complete after " + timeOutInSeconds + " seconds");
}
}
Try this method
This works for me well with dynamically rendered websites:
Wait for complete page to load
WebDriverWait wait = new WebDriverWait(driver, 50);
wait.until((ExpectedCondition<Boolean>) wd -> ((JavascriptExecutor) wd).executeScript("return document.readyState").equals("complete"));
Make another implicit wait with a dummy condition which would always fail
try {
wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//*[contains(text(),'" + "This text will always fail :)" + "')]"))); // condition you are certain won't be true
}
catch (TimeoutException te) {
}
Finally, instead of getting the html source - which would in most of one page applications would give you a different result , pull the outerhtml of the first html tag
String script = "return document.getElementsByTagName(\"html\")[0].outerHTML;";
content = ((JavascriptExecutor) driver).executeScript(script).toString();
There is a easy way to do it. When you first request the state via javascript, it tells you that the page is complete, but after that it enters the state loading. The first complete state was the initial page!
So my proposal is to check for a complete state after a loading state. Check this code in PHP, easily translatable to another language.
$prevStatus = '';
$checkStatus = function ($driver) use (&$prevStatus){
$status = $driver->executeScript("return document.readyState");
if ($prevStatus=='' && $status=='loading'){
//save the previous status and continue waiting
$prevStatus = $status;
return false;
}
if ($prevStatus=='loading' && $status=='complete'){
//loading -> complete, stop waiting, it is finish!
return true;
}
//continue waiting
return false;
};
$this->driver->wait(20, 150)->until($checkStatus);
Checking for a element to be present also works well, but you need to make sure that this element is only present in the destination page.
Something like this should work (please excuse the python in a java answer):
idle = driver.execute_async_script("""
window.requestIdleCallback(() => {
arguments[0](true)
})
""")
This should block until the event loop is idle which means all assets should be loaded.
I have my simple selenium program that validate if the value search box in the google is equal to hello world but i got this error:
Exception in thread "main"
org.openqa.selenium.NoSuchElementException: no such element: Unable to
locate element: {"method":"name","selector":"q"}....
Here's my complete code
public class SimpleSelenium {
WebDriver driver = null;
public static void main(String args[]) {
SimpleSelenium ss = new SimpleSelenium();
ss.openBrowserInChrome();
ss.getPage();
ss.listenForHelloWorld();
ss.quitPage();
}
private void openBrowserInChrome(){
System.setProperty("webdriver.chrome.driver", "C:/chromedriver.exe");
driver = new ChromeDriver();
}
private void quitPage() {
driver.quit();
}
private void getPage() {
driver.get("http://www.google.com");
}
private void listenForHelloWorld() {
WebElement searchField = driver.findElement(By.name("q"));
int count = 1;
while (count++ < 20) {
if (searchField.getAttribute("value").equalsIgnoreCase("hello world")) {
break;
}
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Do you wait until the page is ready and element displayed?
I've often got this error when the page is still loading. You could add something like
(MochaJS example, pretty much the same API for JAVA tests)
test.it('should check the field existence', function (done) {
let field_by = By.id(ID_OF_THE_FIELD);
driver.wait(until.elementLocated(field_by,
driver.wait(until.elementIsVisible(driver.findElement(field_by)), TIME_TO_WAIT_MS);
done();
});
You wait until the element is visible. If it failed, the timeout of TIME_TO_WAIT_MS will be raised.
The google search bar will never have "hello world" in it because you haven't typed it in?
Also the search field value doesn't seem to update when you type in a search (if you inspect the element using the Console).
If your just learning I would just write a test like this and the click the search button, then confirm the "hello world" text in the search results:
WebElement searchField = driver.findElement(By.name("q"))
searchField.sendKeys("Hello World")
//Add code to click search button
//Add code to assert results on next page
Also I would completely change your listenForHelloWorld() method and use the built in WebDriver ExpectedConditions:
new WebDriverWait(driver, 10)
.until(ExpectedConditions.textToBePresentInElement(searchField, "Hello World"))
I was trying to automate the Make My Trip site using Selenium. These are the steps I took:
Search for MakeMyTrip in Google -> Done
Open makemytrip and change country to US -> Done
Click on feedback -> Done
Trying to fill feedback form -> Error
It's saying, unable to find the element.
I have tried the following:
1. Tried finding the element by id
2. Tried finding the element by xpath
//div[#class='feedback-form-container']//form[#id='feedbackForm']//input[#id='field_name_NAME']"
Code:
public void setUp() throws Exception {
driver = new FirefoxDriver();
baseURL = "http://www.google.com/";
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
}
#Test
public void makeMyTriptest() throws Exception {
System.out.println("Entered this loop");
driver.get(baseURL + "/?gws_rd=ssl");
driver.findElement(By.id("lst-ib")).sendKeys("makemytrip");
System.out.println("send keys successful");
driver.findElement(By.linkText("Flights - MakeMyTrip")).click();
driver.findElement(By.id("country_links")).click();
driver.findElement(By.xpath("//*[#id='country_dropdown']//p//a[#href='http://us.makemytrip.com/']")).click();
driver.findElement(By.xpath("//div[#id='webklipper-publisher-widget-container-content-expand-collapse']")).click();
//entering feedback details
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
//driver.findElement(By.id("field_name_NAME")).sendKeys("SubbaRao");
driver.findElement(By.xpath("//div[#class='feedback-form-container']//form[#id='feedbackForm']//input[#id='field_name_NAME']")).sendKeys("SubbaRao");
//driver.findElement(By.id("field_email_EMAIL")).sendKeys("test#test.com");
}
The Feedback form is located inside an iframe. You have to switch into it's context:
driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
//WebElement iFrame = driver.findElement(By.xpath("//*[id='print_ticket_overlayiframe']"));
driver.switchTo().defaultContent();
driver.switchTo().frame("webklipper-publisher-widget-container-frame");
//driver.findElement(By.id("field_name_NAME")).sendKeys("SubbaRao");
driver.findElement(By.xpath("//*[#id='field_name_NAME']")).sendKeys("SubbaRao");
now while you are in the iframe, search for the input
Works for me.
I'm currently using PhantomJS + Selenium to populate some form fields but having weird results. 50% of the time, the test runs fine. The other 50% it errors out and gives me the following
{"errorMessage":"Element is not currently interactable and may not be
manipulated"
I'm doing the following to make sure the page is loaded.
private static boolean waitForJQueryProcessing(WebDriver driver,
int timeOutInSeconds) {
boolean jQcondition = false;
try {
new WebDriverWait(driver, timeOutInSeconds) {
}.until(new ExpectedCondition<Boolean>() {
#Override
public Boolean apply(WebDriver driverObject) {
return (Boolean) ((JavascriptExecutor) driverObject)
.executeScript("return jQuery.active == 0");
}
});
jQcondition = (Boolean) ((JavascriptExecutor) driver)
.executeScript("return window.jQuery != undefined && jQuery.active === 0");
return jQcondition;
} catch (Exception e) {
logger.debug(e.getMessage());
}
return jQcondition;
}
And then to interact with the element(s):
pageWait.until(ExpectedConditions.presenceOfElementLocated(By
.cssSelector("#myForm-searchDate")));
driver.findElement(
By.cssSelector("#myForm-searchDate"))
.sendKeys(Keys.CONTROL + "a");
driver.findElement(
By.cssSelector("#myForm-searchDate"))
.sendKeys(Keys.DELETE);
driver.findElement(
By.cssSelector("#myForm-searchDate"))
.sendKeys(MY_TEST_DATE);
I could see if it failed all the time, but it doesn't fail all the time so it's hard to repeat the results when debugging.
Edit 1. I've tried swapping following the comment below; however, it doesn't work. I've since come to realize this seems to only happen when I fire up several (5+) instances of PhantomJS at once.