[Question] How do we poll for some seconds if an element will become present?

[NikkTod]

Hello,

Can somebody help me with code example of the following situation:

I have a question form on which there could be follow up question depending on the answer of the first question.

So my issue is that I want to poll for let say 3 seconds if an element will become available after a click.

A saw that locator.isVisible timeout option is DEPRECATED, so how do we do it now?

[yury-s]

If you know that the element should become visible the recommended way is to use web-first assertion:

assertThat(page.locator(".my-element")).isVisible();

Otherwise you can do a generic poll using page.waitForTimeout like this:

    Instant start = Instant.now();
    while (!locator.isVisible() && Duration.between(start, Instant.now()).getSeconds() < 3) {
      page.waitForTimeout(100);
    }

In the next version we may introduce generic poll method to simplify code like this.

[NikkTod]

Hi @yury-s, thanks for the hints.

Usually I use web-first assertions, but they are not returning Boolean.

There are cases where I do not know if this element will become available, so I am using for example an if statement.

e.g. -> if (element.IsVisible) do something.

But as we know .isVisible() is returning immediately, so we need some time to wait for it.

Will try the waitForTimeout, but having generic poll method will be great.

Thanksss!

[mxschmitt]

Closing since we have web-first assertions for that. I filed a separate feature request for assert.poll here: #940