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Showing content from https://playwright.dev/python/docs/test-assertions below:

Assertions | Playwright Python

You can specify a custom expect message as a second argument to the expect function, for example:

expect(page.get_by_text("Name"), "should be logged in").to_be_visible()

When expect fails, the error would look like this:

    def test_foobar(page: Page) -> None:
>       expect(page.get_by_text("Name"), "should be logged in").to_be_visible()
E       AssertionError: should be logged in
E       Actual value: None
E       Call log:
E       LocatorAssertions.to_be_visible with timeout 5000ms
E       waiting for get_by_text("Name")
E       waiting for get_by_text("Name")

tests/test_foobar.py:22: AssertionError

You can specify a custom timeout for assertions either globally or per assertion. The default timeout is 5 seconds.

conftest.py

from playwright.sync_api import expect

expect.set_options(timeout=10_000)

test_foobar.py

from playwright.sync_api import expect

def test_foobar(page: Page) -> None:
    expect(page.get_by_text("Name")).to_be_visible(timeout=10_000)

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