Selenium element cannot be found error log

Question

I have a number of tests I'm running through Selenium. Whenever one fails I just have a catch surrounding the test saying that an Element could not be found.

It seems quite vague instead I want to be able to say what element can't be found and write that to my error log. Is there a way to determine what element cannot be found?

Here is some example code I am using at the moment to catch my error.

try
{
    base.SetUp();

    webDriverWait.Until(ExpectedConditions.ElementTo‌BeClickable(
      excelSession.FindElementByName("Blank workbook"))).Click();
    webDriverWait.Until(ExpectedConditions.ElementTo‌BeClickable(
      excelSession.FindElementByName("Create"))).Click();
    webDriverWait.Until(ExpectedConditions.ElementTo‌BeClickable(
      excelSession.FindElementByName("New"))).Click();
    webDriverWait.Until(ExpectedConditions.ElementTo‌BeClickable(
      excelSession.FindElementByName("E  Sample Data"))).Click();

    CommonMethods.IsElementDisplayed(excelSession,
      new StackTrace(true).GetFrame(0).GetFileLineNumber(), 
      new StackTrace(true).GetFrame(0).GetMethod(), "CreateErrorIcon",
        "Error appeard while selecting the E Sample Data button");
}
catch (Exception)
{
    CommonMethods.ExceptionHandler("Couldn't find element", 
      new StackTrace(true).GetFrame(0).GetFileLineNumber(), 
      new StackTrace(true).GetFrame(0).GetMethod(), excelSession);
}

One option is to write the exception message to the logs. The exception message will indicate the locator used. — JeffC
– JeffC, Commented Jul 31, 2017 at 18:12

Aleks Andreev · Accepted Answer · 2017-07-31 18:58:09Z

2

Declare a function that will search for elements:

Func<RemoteWebDriver, By, IWebElement> find = (driver, by) =>
{
    var elements = driver.FindElements(by);
    if (elements.Count < 1)
    {
        var msg = $"Couldn't find element {by}";
        logger.Warn(msg);
        throw new Exception(msg);
    }

    return elements.First();
};

Then use it like this:

webDriverWait.Until(
  ExpectedConditions.ElementTo‌BeClickable(
  find(excelSession, By.Name("Blank workbook")))
).Click();

edited Jul 31, 2017 at 18:58

answered Jul 31, 2017 at 17:27

Aleks Andreev

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8 Comments

Aleks Andreev Over a year ago

Please give me a feedback. Does my code not working? Did I misunderstood a question? What wrong with this answer?

JeffC Over a year ago

The idea is not bad but the implementation has issues. FindElementsByName() is not defined. OP used singular. You have logic issues in your if-else... you don't need the else if at all, just return the first element if .Count == 0. It would be much better to pass in a By locator instead of a string. I know OP used a string but that is not a good practice. By is much more flexible.

Aleks Andreev Over a year ago

@JeffC Thank you for feedback, I've updated my answer. I'm using Selenium "3.4.0.0" and FindElementsByName is defined in OpenQA.Selenium.Remote.RemoteWebDriver class

Craig Gallagher Over a year ago

This is a good answer however in my case I'm searching for a windows element and I'm using FindElementByName rather than the By.Name property is there a way of using your method to fit my methodology?

Aleks Andreev Over a year ago

@CraigGallagher Please see a first version of my answer. Does it meet your requirements?

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