Playwright assertions are created specifically for the dynamic web. This makes Playwright free of the typical in-process test runner limitations. This again leads to a poor developer experience and in some cases leads to double testing the same thing. At any point during test execution, you can check whether there were any soft assertion failures: You can specify a custom error message as a second argument to the expect function, for example: You can convert any synchronous expect to an asynchronous polling one using expect.poll. Playwright Test uses expect library for test assertions. ts We should see that the test succeeded and an HTML report is generated. Sign in await expect(page.locator(#username)).toBeVisible({ timeout: 2000 }) Using toBeVisible() we are checking that the username field is visible on the webpage. Your email address will not be published. Ensures the page is navigated to the given URL. Log out and assert that the logout was successful. Playwright creates a browser context for each test. Inspect page, generate selectors, step through the test execution, see click points, explore execution logs. Playwright also supports soft assertions: failed soft assertions do not terminate test execution, but mark the test as failed. This function will wait until two consecutive page screenshots yield the same result, and then compare the last screenshot with the expectation. > Specify locators that should be masked when the screenshot is taken. Web-first Assertions: Playwright's assertions are more intelligent in that it retries for the conditions that need to be satisfied automatically. Headless execution is supported for all browsers on all platforms. Playwright waits for elements to be actionable prior to performing actions. Now to execute the test in one browser and in headed mode, we will use the command: 1 npx playwright test -- headed -- project = chromium tests /1- inputText. <"css"|"device"> When set to "css", screenshot will have a single pixel per each css pixel on the page. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. You can use regular expressions for the value as well. // Basic usage and the file name is derived from the test name. Ensures that Locator either does not resolve to any DOM node, or resolves to a non-visible one. // Avoid running further if there were soft assertion failures. Assertions Assertions Playwright Test uses expect library for test assertions. The use of ElementHandle is discouraged, use Locator objects and web-first assertions instead; The Locator API was introduced in version 1.14 of Microsoft.Playwright; Locator vs ElementHandle describes the difference between the old and new way to access elements; You can use the vanilla API to achieve the same thing without using this package . Playwright inspector. Codegen. Defaults to timeout in TestConfig.expect.#. Ensures the Locator points to an editable element. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests. Ensures the Locator points to an element with the given input value. When true, takes a screenshot of the full scrollable page, instead of the currently visible viewport. Browser context is equivalent to a brand new browser profile. Limitations of Playwright . You can use regular expressions for the value as well. Not very clear for our users, use web-first assertions in some places but never explain it in the docs. 409K impressions in July22. Learn more about locators. Pass 0 to disable timeout. Playwright is a framework for Web Testing and Automation. Auto-wait. It checks whether the condition has been met or not. Creating a new browser context only takes a handful of milliseconds. expect(locator).toContainText(expected[, options]), expect(locator).toHaveAttribute(name, value[, options]), expect(locator).toHaveClass(expected[, options]), expect(locator).toHaveCount(count[, options]), expect(locator).toHaveCSS(name, value[, options]), expect(locator).toHaveJSProperty(name, value[, options]), expect(locator).toHaveScreenshot(name[, options]), expect(locator).toHaveScreenshot([options]), expect(locator).toHaveText(expected[, options]), expect(locator).toHaveValue(value[, options]), expect(locator).toHaveValues(values[, options]), expect(page).toHaveScreenshot(name[, options]), expect(page).toHaveTitle(titleOrRegExp[, options]), expect(page).toHaveURL(urlOrRegExp[, options]), expect(screenshot).toMatchSnapshot(name[, options]), expect(screenshot).toMatchSnapshot([options]), expect(locator).toContainText(expected, options), expect(locator).toHaveAttribute(name, value, options), expect(locator).toHaveClass(expected, options), expect(locator).toHaveCount(count, options), expect(locator).toHaveCSS(name, value, options), expect(locator).toHaveJSProperty(name, value, options), expect(locator).toHaveScreenshot(name, options), expect(locator).toHaveScreenshot(options), expect(locator).toHaveText(expected, options), expect(locator).toHaveValue(value, options), expect(locator).toHaveValues(values, options), expect(page).toHaveScreenshot(name, options), expect(page).toHaveTitle(titleOrRegExp, options), expect(page).toHaveURL(urlOrRegExp, options), expect(screenshot).toMatchSnapshot(name, options), expect(screenshot).toMatchSnapshot(options). Ensures the Locator points to an element that contains the given text. Playwright v1.23 is out! Unset by default.#, omitBackground? Playwright is a framework for Web Testing and Automation. Playwright is aligned with the modern browsers architecture and runs tests out-of-process. In this article, we will be writing a simple login-logout scenario using text input and basic assertions. Native mobile emulation of Google Chrome for Android and Mobile Safari. This library provides a lot of matchers like toEqual, toContain, toMatch, toMatchSnapshot and many more: expect(success).toBeTruthy(); Playwright also extends it with convenience async matchers that will wait until the expected condition is met. 12 uchagani mentioned this issue on Mar 16 [Feature] LocatorAssertions.setDefaultTimeout () microsoft/playwright-java#842 Closed Ensures the Locator points to a focused DOM node. Test frames, pierce Shadow DOM. Playwright selectors pierce shadow DOM and allow entering frames seamlessly. Cross-platform. Configure test retry strategy, capture execution trace, videos, screenshots to eliminate flakes. Defaults to "hide".#, mask? Multiple everything. Ensures the Locator points to an element with the given text. expect web first auto wait element expect Playwright wait match timeout Web-First Assertions expect (locator).toBeChecked ( [options]) expect (locator).toBeDisabled ( [options]) Headless execution is supported for all browsers on all platforms. Ensures the Locator points to an element with given JavaScript property. await page.click(button[type=submit]) Using page.click we are clicking the login button. Should have the following fields:#, fullPage? Playwright leverages the Chrome DevTools protocol to communicate with browsers directly. // Poll for 10 seconds; defaults to 5 seconds. When set to "initial", text caret behavior will not be changed. No trade-offs No limits The number of elements equals the number of expected values in the array. <"disabled"|"allow"> When set to "disabled", stops CSS animations, CSS transitions and Web Animations. Brains and Sweat behind Testersdock. infinite animations are canceled to initial state, and then played over after the screenshot. It will be re-fetching the node and checking it over and over, until the condition is met or until the timeout is reached. For high-dpi devices, this will keep screenshots small. caret? Already on GitHub? Test scenarios that span multiple tabs, multiple origins and multiple users. You can use regular expressions for the value as well. The text was updated successfully, but these errors were encountered: Web-first assertions vs. Playwright Assertions? Defaults to false.#. Web-First Assertions - retries checks until a necessary condition is met, before proceeding. Open https://the-internet.herokuapp.com/login In general, we can expect the opposite to be true by adding a .not to the front of the matchers: By default, failed assertion will terminate test execution. For example, this code tests that the page URL doesn't contain "error": clip? Check out system requirements for details. Feels good when your efforts turn into actual numbers, 'Example to demonstrate text input and basic assertions', 'https://the-internet.herokuapp.com/login', How to work with checkboxes in Playwright. // Make a few checks that will not stop the test when failed // and continue the test to check more things. For example, this code tests that the response status is not successful: Ensures the response status code is within 200..299 range. A QA by profession and a Coder by passion. We can also use it with Playwright Test's many web-first assertions, that offer async matchers that wait until the expected condition is . Playwright is a framework for Web Testing and Automation. Ensures the Locator points to an element with given CSS classes. Time to retry the assertion for. // Contains the right items in the right order, // Locator points to the outer list element, not to the list items, // Has the right items in the right order. Selectors : Playwright supports different types of selectors including CSS and Xpath. Check out system requirements for details. If you pass an array as an expected value, the expectations are: For example, consider the following list: Ensures the Locator points to an element with given attribute. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Trusted events. Log in once. To view the generated HTML report, we will use the command: Github:https://github.com/alapanme/Playwright-Automation. Assert that the login was successful . Cut errors by configuring test retry strategy and capturing execution trace videos. Playwright trace contains test execution screencast, live DOM snapshots, action explorer, test source, and many more. It also has a rich set of introspection events. Tracing. Locators are the central piece of Playwright's auto-waiting and retry-ability. name > Snapshot name.#, animations? This function will wait until two consecutive locator screenshots yield the same result, and then compare the last screenshot with the expectation. Test Mobile Web. to your account. It allows testing Chromium, Firefox and WebKit with a single API. Ensures the Locator points to an element with the given DOM Node ID. An acceptable amount of pixels that could be different. Checks are also automatically retried until they meet the necessary conditions. Default is configurable with TestConfig.expect. Generate tests by recording your actions. How to apply Tags to your Cypress Tests like Smoke, E2E, Facebook Automation: Login, Status Update, Logout, https://github.com/alapanme/Playwright-Automation, How to automatically generate scripts with Playwright Inspector, How to execute HTML Document Methods in Playwright, Interesting things that you can do with Playwright Command Line Tools. <"hide"|"initial"> When set to "hide", screenshot will hide text caret.