selenium – Page 33 – Tarik Billa

Capturing JavaScript error in Selenium

January 28, 2023 by Tarik

I’m doing this to capture JavaScript errors: [TestCleanup] public void TestCleanup() { var errorStrings = new List<string> { “SyntaxError”, “EvalError”, “ReferenceError”, “RangeError”, “TypeError”, “URIError” }; var jsErrors = Driver.Manage().Logs.GetLog(LogType.Browser).Where(x => errorStrings.Any(e => x.Message.Contains(e))); if (jsErrors.Any()) { Assert.Fail(“JavaScript error(s):” + Environment.NewLine + jsErrors.Aggregate(“”, (s, entry) => s + entry.Message + Environment.NewLine)); } }

Selenium Webdriver finding an element in a sub-element

January 28, 2023 by Tarik

If you start an XPath expression with //, it begins searching from the root of document. To search relative to a particular element, you should prepend the expression with . instead: element2 = driver.find_element_by_xpath(“//div[@title=”div2″]”) element2.find_element_by_xpath(“.//p[@class=”test”]”).text

How to take partial screenshot with Selenium WebDriver in python?

January 27, 2023 by Tarik

Other than Selenium, this example also requires the PIL Imaging library. Sometimes this is put in as one of the standard libraries and sometimes it’s not, but if you don’t have it you can install it with pip install Pillow from selenium import webdriver from PIL import Image from io import BytesIO fox = webdriver.Firefox() … Read more

unknown error: Chrome failed to start: exited abnormally (Driver info: chromedriver=2.9

January 25, 2023 by Tarik

I finally managed to get Selenium tests starting the Chrome Driver on my laptop (server). The important bit is to use Xvfb. Don’t ask me why but once you accept this fact follow these steps (more detailed than @Anon answer) In you Jenkins settings add a global property key : DISPLAY value:0:0 On your server … Read more

How to run a method before all tests in all classes?

January 24, 2023 by Tarik

Using session fixture as suggested by hpk42 is great solution for many cases, but fixture will run only after all tests are collected. Here are two more solutions: conftest hooks Write a pytest_configure or pytest_sessionstart hook in your conftest.py file: # content of conftest.py def pytest_configure(config): “”” Allows plugins and conftest files to perform initial … Read more

How to check if an alert exists using WebDriver?

January 24, 2023 by Tarik

public boolean isAlertPresent() { try { driver.switchTo().alert(); return true; } // try catch (NoAlertPresentException Ex) { return false; } // catch } // isAlertPresent() check the link here https://groups.google.com/forum/?fromgroups#!topic/webdriver/1GaSXFK76zY

How to Maximize window in chrome using webDriver (python)

January 23, 2023 by Tarik

You could use ChromeOptions and set suitable argument: options = ChromeOptions() options.add_argument(“–start-maximized”) driver = ChromeDriver(options)

How do I pass options to the Selenium Chrome driver using Python?

January 22, 2023 by Tarik

Found the chrome Options class in the Selenium source code. Usage to create a Chrome driver instance: from selenium import webdriver from selenium.webdriver.chrome.options import Options chrome_options = Options() chrome_options.add_argument(“–disable-extensions”) driver = webdriver.Chrome(chrome_options=chrome_options)

How to capture the screenshot of a specific element rather than entire page using Selenium Webdriver?

January 21, 2023 by Tarik

We can get the element screenshot by cropping entire page screenshot as below: driver.get(“http://www.google.com”); WebElement ele = driver.findElement(By.id(“hplogo”)); // Get entire page screenshot File screenshot = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE); BufferedImage fullImg = ImageIO.read(screenshot); // Get the location of element on the page Point point = ele.getLocation(); // Get width and height of the element int eleWidth = … Read more

XPath: difference between dot and text()

January 20, 2023 by Tarik

There is a difference between . and text(), but this difference might not surface because of your input document. If your input document looked like (the simplest document one can imagine given your XPath expressions) Example 1 <html> <a>Ask Question</a> </html> Then //a[text()=”Ask Question”] and //a[.=”Ask Question”] indeed return exactly the same result. But consider … Read more