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How to use not_to_have_attribute method in Playwright Python

Best Python code snippet using playwright-python

_assertions.py

Source:_assertions.py

...159            ),160            value,161            "Locator expected to have attribute",162        )163    async def not_to_have_attribute(164        self,165        name: str,166        value: Union[str, Pattern],167        timeout: float = None,168    ) -> None:169        __tracebackhide__ = True170        await self._not.to_have_attribute(name, value, timeout)171    async def to_have_class(172        self,173        expected: Union[List[Union[Pattern, str]], Pattern, str],174        timeout: float = None,175    ) -> None:176        __tracebackhide__ = True177        if isinstance(expected, list):...

test_assertions.py

Source:test_assertions.py

...83    page.goto(server.EMPTY_PAGE)84    page.set_content("<div id=foobar>kek</div>")85    expect(page.locator("div#foobar")).to_have_attribute("id", "foobar")86    expect(page.locator("div#foobar")).to_have_attribute("id", re.compile("foobar"))87    expect(page.locator("div#foobar")).not_to_have_attribute("id", "kek", timeout=100)88    with pytest.raises(AssertionError):89        expect(page.locator("div#foobar")).to_have_attribute("id", "koko", timeout=100)90def test_assertions_locator_to_have_class(page: Page, server: Server) -> None:91    page.goto(server.EMPTY_PAGE)92    page.set_content("<div class=foobar>kek</div>")93    expect(page.locator("div.foobar")).to_have_class("foobar")94    expect(page.locator("div.foobar")).to_have_class(["foobar"])95    expect(page.locator("div.foobar")).to_have_class(re.compile("foobar"))96    expect(page.locator("div.foobar")).to_have_class([re.compile("foobar")])97    expect(page.locator("div.foobar")).not_to_have_class("kekstar", timeout=100)98    with pytest.raises(AssertionError):99        expect(page.locator("div.foobar")).to_have_class("oh-no", timeout=100)100def test_assertions_locator_to_have_count(page: Page, server: Server) -> None:101    page.goto(server.EMPTY_PAGE)...

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
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Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
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