Implementing try-catch logic for element visibility in Playwright using TypeScript poses limitations

There is a specific scenario I need to automate where if the title of a page is "Sample title", then I must mark the test as successful. Otherwise, if that condition is not met, I have to interact with another element on the page and verify if the title changes to "Sample title".

My Approach: I attempted to handle this using a try-catch block, but unfortunately, I kept encountering timeout errors. Here's a snippet of the code I used:

try {
    await expect.soft(page).toHaveTitle("Sample title",{ timeout: 30000 })
}
catch (error){
    await page.getByRole('link', { name: 'here' }).click();
    await expect.soft(page).toHaveTitle("Sample title",{ timeout: 30000 })
}

I anticipated that the script would first attempt the code in the try block, and upon encountering a timeout error, it would proceed to the catch block. However, the execution never goes to the catch block, resulting in the following error message:

Error:

Test timeout of 30000ms exceeded.

Error: expect(locator).toHaveTitle(expected)

Locator: locator(':root')
Expected string: "Sample title"
Received string: "Different Title"
Call log:
  - expect.soft.toHaveTitle with timeout 30000ms
  - waiting for locator(':root')
  -   resolved locator to <html>…</html>
  -   unexpected value "dfretgrt"
...

> 19 |
20 |   try {
21 |     await expect.soft(page).toHaveTitle("Sample title",{ timeout: 30000 })
       |                             ^
22 |
23 |   }
24 |   catch (error){

Answer №1

Try using the "OR" locator method.

This feature creates a unique locator that can match either of two locators, which can be helpful in various scenarios, including yours.

Example of How to Use It

Imagine a situation where you want to click on a button labeled "New email," but sometimes a security settings window pops up instead. With the "OR" locator, you can wait for either the "New email" button or the dialog to appear and take appropriate action.

const newEmail = page.getByRole('button', { name: 'New' });
const dialog = page.getByText('Confirm security settings');
await expect(newEmail.or(dialog)).toBeVisible();
if (await dialog.isVisible())
  await page.getByRole('button', { name: 'Dismiss' }).click();
await newEmail.click();

For more information, visit:

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