How can I write a javascript code that will only click on a link if it is present on the page?

In SeleniumIDE, I am attempting to call javascript.

This seems like a common scenario for others as well.

My test suite begins with a login step.

I want the suite to start by ensuring that I am logged out and logging me out if I am not already logged out. I can determine my log-in status by checking for the presence of a 'Logout' hyperlink.

However, I only want to click on the logout link if I am currently logged in; otherwise, I want to do nothing to prevent errors raised by clicking on a non-existent element when I am not logged in.

So logically, this translates to:

if the logout link UI element exists,
  click on the logout link
else
  do nothing
end

Since basic SeleniumIDE doesn't support if-then statements, I was hoping to achieve this in JavaScript itself.

Something along the lines of:

store    javascript{if ([a with text 'Logout' exists]) then click on it end;}  id1

Alternatively, visiting the URL directly could be an option (e.g., http://my-apps-domain/users/sign_out), but I'm unsure of the exact syntax.

The relevant HTML code is:

<li><a href="/users/sign_out">Logout</a></li>

If the logout link exists, I would prefer to click on the anchor tag (or visit the URL directly); otherwise, take no action.

If possible, I would like to avoid using jQuery.

Update: Even using

javascript{window.location.replace('http://google.com')}
closes my SeleniumIDE window and opens Google in a new window without affecting the actual window where the tests are running.

Answer №1

Executing a click event in vanilla JavaScript can present challenges (refer to this solution: )

Nevertheless, incorporating jQuery can streamline the process. For instance, if the logout button is identified by an id such as "logout", you could utilize the following method:

var logoutButton = $('#logout');

if (logoutButton != null) {
    logoutButton.click();
}

Answer №2

When you're unable to edit the HTML directly, one alternative is to find a different way to reference the link. The URL appears to be quite dependable for this purpose:

var logoutLink = document.querySelector('a[href="/users/sign_out"]');
if(logoutLink != null) {
    window.location.href = logoutLink.href;
}

You can avoid triggering a click event since changing pages can be easily achieved with window.location.

UPDATE:

Another suggestion would be to give your button an id, and then click it using selenium:

var logoutLink = document.querySelector('a[href="/users/sign_out"]');
if(logoutLink != null) {
    logoutLink.setAttribute("id", "logoutLink");
}

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