How to handle Javascript Alert/pop up window in selenium webdriver

Question

I am not sure whether selenium webdriver can handle Javascript alert/pop-up window.

I have a scenario like
1. User uploads a xls file and click on upload button
2. Alert/Pop-up window will be displayed . Click "OK" on window

Am able to automate the above scenario but the Alert/pop-up window is displayed while running the scripts.

Is their anyway workaround that we can handle javascript alert/pop-up window?

Solution 1

You can also try waiting for the alert to appear and then accepting it.

Below is the code for that (after the upload button is clicked):

try{
   //Wait 10 seconds till alert is present
   WebDriverWait wait = new WebDriverWait(driver, 10);
   Alert alert = wait.until(ExpectedConditions.alertIsPresent());

   //Accepting alert.
   alert.accept();
   System.out.println("Accepted the alert successfully.");
}catch(Throwable e){
   System.err.println("Error came while waiting for the alert popup. "+e.getMessage());
}

Solution 2

Switch to default content Dismiss alert after accepting "OK" Otherwise your alert is from a different window which you'll have to switch to in order to dismiss

driver.switchTo().alert().accept();    
driver.switchTo().alert().dismiss();  
driver.switchTo().alert().defaultConent();  

Solution 3

Mock it out. Call javascript behind the UI directly:

WebDriver driver = new AnyDriverYouWant();
if (driver instanceof JavascriptExecutor) {
    ((JavascriptExecutor)driver).executeScript("yourScript();");
}