def test_can_clear_password_field_content(browser, app_url):
    """lxml-based drivers should not be able to clear"""
    browser.visit(app_url)
    with pytest.raises(NotImplementedError):
        browser.find_by_name("password").first.clear()
lxml-based drivers should not be able to clear
tests/test_all_lxml_drivers/test_form_elements_lxml.py