API Testing

Playwright for Python 1.18 introduces new API Testing that lets you send requests to the server directly from Python! Now you can:

• test your server API
• prepare server side state before visiting the web application in a test
• validate server side post-conditions after running some actions in the browser

To do a request on behalf of Playwright's Page, use new page.request API:

# Do a GET request on behalf of page
res = page.request.get("http://example.com/foo.json")

Read more in our documentation.

Web-First Assertions

Playwright for Python 1.18 introduces Web-First Assertions.

Consider the following example:

from playwright.sync_api import Page, expect

def test_status_becomes_submitted(page: Page) -> None:
    # ..
    page.click("#submit-button")
    expect(page.locator(".status")).to_have_text("Submitted")

Playwright will be re-testing the node with the selector .status until fetched Node has the "Submitted" text. It will be re-fetching the node and checking it over and over, until the condition is met or until the timeout is reached. You can pass this timeout as an option.

Read more in our documentation.

Locator Improvements

• locator.drag_to()

• Each locator can now be optionally filtered by the text it contains:

  page.locator("li", has_text="my item").locator("button").click()
  

  Read more in locator documentation

New APIs & changes

• accept_downloads option now defaults to True.
• sources option to embed sources into traces.

Browser Versions

• Chromium 99.0.4812.0
• Mozilla Firefox 95.0
• WebKit 15.4

This version was also tested against the following stable channels:

• Google Chrome 97
• Microsoft Edge 97

Highlights

This patch includes bug fixes for the following issues:

https://github.com/microsoft/playwright/issues/10638 - [BUG] Locator.click -> subtree intercepts pointer events since version 1.17.0 https://github.com/microsoft/playwright/issues/10632 - [BUG] Playwright 1.17.0 -> After clicking the element - I get an error that click action was failed https://github.com/microsoft/playwright/issues/10627 - [REGRESSION]: Can no longer click Material UI select box https://github.com/microsoft/playwright/issues/10620 - [BUG] trailing zero width whitespace fails toHaveText

Browser Versions

• Chromium 98.0.4695.0
• Mozilla Firefox 94.0.1
• WebKit 15.4

This version of Playwright was also tested against the following stable channels:

• Google Chrome 96
• Microsoft Edge 96

Highlights

This patch includes bug fixes for the following issues:

https://github.com/microsoft/playwright/issues/10127 - [BUG] Add Trace Viewer error handling (file not found, not parsable) https://github.com/microsoft/playwright/issues/10436 - [Bug]: Add hints on how to open trace from HTML report when opened locally https://github.com/microsoft/playwright/pull/10492 - [Bug]: Fix broken Firefox User-Agent on 'Desktop Firefox' devices

Browser Versions

• Chromium 98.0.4695.0
• Mozilla Firefox 94.0.1
• WebKit 15.4

This version was also tested against the following stable channels:

• Google Chrome 96
• Microsoft Edge 96

Playwright v1.17.0

Frame Locators

Playwright 1.17 introduces frame locators - a locator to the iframe on the page. Frame locators capture the logic sufficient to retrieve the iframe and then locate elements in that iframe. Frame locators are strict by default, will wait for iframe to appear and can be used in Web-First assertions.

Frame locators can be created with either page.frame_locator(selector) or locator.frame_locator(selector) method.

locator = page.frame_locator("my-frame").locator("text=Submit")
locator.click()

Read more at our documentation.

Trace Viewer Update

Playwright Trace Viewer is now available online at https://trace.playwright.dev! Just drag-and-drop your trace.zip file to inspect its contents.

NOTE: trace files are not uploaded anywhere; trace.playwright.dev is a progressive web application that processes traces locally.

• Playwright Test traces now include sources by default (these could be turned off with tracing option)
• Trace Viewer now shows test name
• New trace metadata tab with browser details
• Snapshots now have URL bar

Ubuntu ARM64 support + more

• Playwright now supports Ubuntu 20.04 ARM64. You can now run Playwright tests inside Docker on Apple M1 and on Raspberry Pi.

New APIs

• Tracing now supports a 'title' option
• Page navigations support a new 'commit' waiting option

Browser Versions

• Chromium 98.0.4695.0
• Mozilla Firefox 94.0.1
• WebKit 15.4

This version was also tested against the following stable channels:

• Google Chrome 96
• Microsoft Edge 96

---

Highlights

This patch includes bug fixes for the following issues:

https://github.com/microsoft/playwright/issues/9692 - [BUG] HTML report shows locator._withElement for locator.evaluate https://github.com/microsoft/playwright/issues/7818 - [Bug]: dedup snapshot CSS images

Browser Versions

• Chromium 97.0.4666.0
• Mozilla Firefox 93.0
• WebKit 15.4

This version was also tested against the following stable channels:

• Google Chrome 94
• Microsoft Edge 94

---

(1.16.2-1635322350000)

🎭 Playwright Library

Locator.waitFor

Wait for a locator to resolve to a single element with a given state. Defaults to the state: 'visible'.

order_sent = page.locator("#order-sent")
order_sent.wait_for()

Read more about locator.wait_for().

🎭 Playwright Trace Viewer

• run trace viewer with npx playwright show-trace and drop trace files to the trace viewer PWA
• better visual attribution of action targets

Read more about Trace Viewer.

Browser Versions

• Chromium 97.0.4666.0
• Mozilla Firefox 93.0
• WebKit 15.4

This version of Playwright was also tested against the following stable channels:

• Google Chrome 94
• Microsoft Edge 94

---

(1.16.0-1634781227000)

Highlights

This patch includes bug fixes for the following issues:

https://github.com/microsoft/playwright/issues/9261 - [BUG] npm init playwright fails on path spaces https://github.com/microsoft/playwright/issues/9298 - [Question]: Should new Headers methods work in RouteAsync ?

Browser Versions

• Chromium 96.0.4641.0
• Mozilla Firefox 92.0
• WebKit 15.0

This version of Playwright was also tested against the following stable channels:

• Google Chrome 93
• Microsoft Edge 93

---

(driver version: 1.15.2-1633455481000)

Highlights

This patch includes bug fixes for the following issues:

https://github.com/microsoft/playwright/issues/9065 - [BUG] browser(webkit): disable COOP support https://github.com/microsoft/playwright/issues/9092 - [BUG] browser(webkit): fix text padding

Browser Versions

• Chromium 96.0.4641.0
• Mozilla Firefox 92.0
• WebKit 15.0

This version of Playwright was also tested against the following stable channels:

• Google Chrome 93
• Microsoft Edge 93

---

(driver version: 1.15.0-1633020276000)

Highlights

This patch includes bug fixes for the following issues:

https://github.com/microsoft/playwright/pull/8955 - [BUG] fix(inspector): stop on all snapshottable actions https://github.com/microsoft/playwright/pull/8999 - [BUG] fix: do not dedup header values https://github.com/microsoft/playwright/pull/9038 - [BUG] fix: restore support for slowmo connect option

Browser Versions

• Chromium 96.0.4641.0
• Mozilla Firefox 92.0
• WebKit 15.0

This version of Playwright was also tested against the following stable channels:

• Google Chrome 93
• Microsoft Edge 93

🖱️ Mouse Wheel

By using Page.mouse.wheel you are now able to scroll vertically or horizontally.

📜 New Headers API

Previously it was not possible to get multiple header values of a response. This is now possible and additional helper functions are available:

• Request.all_headers()
• Request.headers_array()
• Request.header_value(name: str)
• Response.all_headers()
• Response.headers_array()
• Response.header_value(name: str)
• Response.header_values(name: str)

🌈 Forced-Colors emulation

Its now possible to emulate the forced-colors CSS media feature by passing it in the context options or calling Page.emulate_media().

New APIs

• Page.route() accepts new times option to specify how many times this route should be matched.
• Page.set_checked(selector: str, checked: bool) and Locator.set_checked(selector: str, checked: bool) was introduced to set the checked state of a checkbox.
• Request.sizes() Returns resource size information for given http request.
• BrowserContext.tracing.start_chunk() - Start a new trace chunk.
• BrowserContext.tracing.stop_chunk() - Stops a new trace chunk.

Browser Versions

• Chromium 96.0.4641.0
• Mozilla Firefox 92.0
• WebKit 15.0

This version of Playwright was also tested against the following stable channels:

• Google Chrome 93
• Microsoft Edge 93

Highlights

This patch includes bug fixes for the following issues:

microsoft/playwright#8287 - [BUG] webkit crashes intermittently: "file data stream has an unexpected number of bytes" microsoft/playwright#8281 - [BUG] HTML report crashes if diff snapshot does not exists microsoft/playwright#8230 - Using React Selectors with multiple React trees microsoft/playwright#8366 - [BUG] Mark timeout in isVisible as deprecated and noop

Browser Versions

• Chromium 94.0.4595.0
• Mozilla Firefox 91.0
• WebKit 15.0

This version of Playwright was also tested against the following stable channels:

• Google Chrome 92
• Microsoft Edge 92

⚡️ New "strict" mode

Selector ambiguity is a common problem in automation testing. "strict" mode ensures that your selector points to a single element and throws otherwise.

Pass strict = true into your action calls to opt in.

# This will throw if you have more than one button!
page.click('button', strict=true)

📍 New Locators API

Locator represents a view to the element(s) on the page. It captures the logic sufficient to retrieve the element at any given moment.

The difference between the Locator and ElementHandle is that the latter points to a particular element, while Locator captures the logic of how to retrieve that element.

Also, locators are "strict" by default!

locator = page.locator('button')
locator.click()

Learn more in the documentation.

🧩 Experimental React and Vue selector engines

React and Vue selectors allow selecting elements by its component name and/or property values. The syntax is very similar to attribute selectors and supports all attribute selector operators.

page.click('_react=SubmitButton[enabled=true]')
page.click('_vue=submit-button[enabled=true]')

Learn more in the react selectors documentation and the vue selectors documentation.

✨ New nth and visible selector engines

• nth selector engine is equivalent to the :nth-match pseudo class, but could be combined with other selector engines.
• visible selector engine is equivalent to the :visible pseudo class, but could be combined with other selector engines.

# select the first button among all buttons
button.click('button >> nth=0')
# or if you are using locators, you can use first(), nth() and last()
page.locator('button').first().click()

# click a visible button
button.click('button >> visible=true')

Browser Versions

• Chromium 94.0.4595.0
• Mozilla Firefox 91.0
• WebKit 15.0

This version of Playwright was also tested against the following stable channels:

• Google Chrome 92
• Microsoft Edge 92

Highlights

This patch includes bug fixes for the following issues:

#823 - [Bug]: Warning of Future exception was never retrieved when expect_* gets used and throws inside the context manager #820 - [Bug]: wait_for_load_state("networkidle") was not working #812 - [Bug]: added hooks for pyinstaller

Browser Versions

• Chromium 93.0.4576.0
• Mozilla Firefox 90.0
• WebKit 14.2

Playwright

• 🖖 Programmatic drag-and-drop support via the page.drag_and_drop() API.
• 🔎 Enhanced HAR with body sizes for requests and responses. Use via record_har_path option in browser.new_context().

Tools

• Playwright Trace Viewer now shows parameters, returned values and console.log() calls.
• Playwright Inspector can generate Playwright Test tests.

New and Overhauled Guides

• Intro
• Authentication
• Chome Extensions
• Playwright Test Configuration
• Playwright Test Annotations
• Playwright Test Fixtures

Browser Versions

• Chromium 93.0.4576.0
• Mozilla Firefox 90.0
• WebKit 14.2

New Playwright APIs

• new baseURL option in browser.new_context() and browser.new_page()
• response.security_details() and response.server_addr()
• page.drag_and_drop() and frame.drag_and_drop()
• download.cancel()
• page.input_value(), frame.input_value() and element_handle.input_value()
• new force option in page.fill(), frame.fill(), and element_handle.fill()
• new force option in page.select_option(), frame.select_option(), and element_handle.select_option()

Highlights

This patch release includes bugfixes for the following issues:

https://github.com/microsoft/playwright/issues/7015 - [BUG] Firefox: strange undefined toJSON property on JS objects https://github.com/microsoft/playwright/issues/7048 - [BUG] Dialogs cannot be dismissed if tracing is on in Chromium or Webkit https://github.com/microsoft/playwright/issues/7058 - [BUG] Getting no video frame error for mobile chrome

Browser Versions

• Chromium 93.0.4530.0
• Mozilla Firefox 89.0
• WebKit 14.2

This version of Playwright was also tested against the following stable channels:

• Google Chrome 91
• Microsoft Edge 91

🧟‍♂️ Introducing Playwright Trace & TraceViewer

Playwright Trace Viewer is a new GUI tool that helps exploring recorded Playwright traces after the script ran. Playwright traces let you examine:

• page DOM before and after each Playwright action
• page rendering before and after each Playwright action
• browse network during script execution

Traces are recorded using the new browser_context.tracing API:

browser = chromium.launch()
context = browser.new_context()

# Start tracing before creating / navigating a page.
context.tracing.start(screenshots=True, snapshots=True)

page.goto("https://playwright.dev")

# Stop tracing and export it into a zip archive.
context.tracing.stop(path = "trace.zip")

Traces are examined later with the Playwright CLI:

playwright show-trace trace.zip

That will open the following GUI:

👉 Read more in trace viewer documentation.

---

Browser Versions

• Chromium 93.0.4530.0
• Mozilla Firefox 89.0
• WebKit 14.2

This version of Playwright was also tested against the following stable channels:

• Google Chrome 91
• Microsoft Edge 91

New APIs

• reduced_motion option in page.emulate_media(), browser_type.launch_persistent_context(), browser.new_context() and browser.new_page()
• browser_context.on("request")
• browser_context.on("requestfailed")
• browser_context.on("requestfinished")
• browser_context.on("response")
• traces_dir option in browser_type.launch() and browser_type.launch_persistent_context()
• new browser_context.tracing API namespace
• new download.page getter

Highlights

This patch includes bug fixes across all languages for the following issues:

• https://github.com/microsoft/playwright-python/issues/679 - can't get browser's context pages after connect_over_cdp
• https://github.com/microsoft/playwright-java/issues/432 - [Bug] Videos are not complete when an exception is thrown

Browser Versions

• Chromium 92.0.4498.0
• Mozilla Firefox 89.0b6
• WebKit 14.2

This version of Playwright was also tested against the following stable channels:

• Google Chrome 90
• Microsoft Edge 90

Highlights

🐧 Deploy v1.11 on PIP for Ubuntu users 🐍 Release Playwright-Python on Anaconda: https://anaconda.org/Microsoft/playwright

Browser Versions

• Chromium 92.0.4498.0
• Mozilla Firefox 89.0b6
• WebKit 14.2

This version of Playwright was also tested against the following stable channels:

• Google Chrome 90
• Microsoft Edge 90

Highlights

🎥 New video: Playwright: A New Test Automation Framework for the Modern Web (slides)

• We talked about Playwright
• Showed engineering work behind the scenes
• Did live demos with new features ✨
• Special thanks to applitools for hosting the event and inviting us!

⚙️ Chrome DevTools Protocol support with browser_type.connect_over_cdp().

Browser Versions

• Chromium 92.0.4498.0
• Mozilla Firefox 89.0b6
• WebKit 14.2

This version of Playwright was also tested against the following stable channels:

• Google Chrome 90
• Microsoft Edge 90

New APIs

• new emulation devices: Galaxy S8, Galaxy S9+, Galaxy Tab S4, Pixel 3, Pixel 4
• new methods:
  • browser_type.connect_over_cdp() to connect using Chrome DevTools protocol
  • browser_type.connect() to connect to a Playwright server
  • page.wait_for_url() to ensure navigations to URL
  • video.delete() and video.save_as() to manage screen recording
• new options:
  • screen option in the browser.new_context() method to emulate window.screen dimensions
  • position option in page.check() and page.uncheck() methods
  • trial option to dry-run actions in page.check(), page.uncheck(), page.click(), page.dblclick(), page.hover() and page.tap()
  • headers option in browser_type.connect()

Highlights

• Run Playwright against Google Chrome and Microsoft Edge stable channels with the new channels API.
• Chromium screenshots are fast on Mac & Windows.

Bundled Browser Versions

• Chromium 90.0.4430.0
• Mozilla Firefox 87.0b10
• WebKit 14.2

This version of Playwright was also tested against the following stable channels:

• Google Chrome 89
• Microsoft Edge 89

New APIs

• browserType.launch() now accepts the new 'channel' option. Read more in our documentation.

Highlights

Text selector and click() fixes.

Browser Versions

• Chromium 90.0.4421.0
• Mozilla Firefox 86.0b10
• WebKit 14.1

<details> <summary><b>Issues Closed (4)</b></summary>

#538 - page.on("request", f=func) fails if func is a class method #534 - Either path or source parameter must be specified

https://github.com/microsoft/playwright/issues/5634 - [REGRESSION]: Test selector changed behavior https://github.com/microsoft/playwright/issues/5674 - [REGRESSION]: Label is not visible anymore

</details>

Highlights

Text selector fixes.

Browser Versions

• Chromium 90.0.4421.0
• Mozilla Firefox 86.0b10
• WebKit 14.1

Highlights

• Playwright for Python is now stable with an idiomatic snake case API and pre-built Docker image to run tests in CI/CD.

• Playwright Inspector is a new GUI tool to author and debug your tests.

  • Line-by-line debugging of your Playwright scripts, with play, pause and step-through.
  • Author new scripts by recording user actions.
  • Generate element selectors for your script by hovering over elements.
  • Set the PWDEBUG=1 environment variable to launch the Inspector

• Pause script execution with page.pause() in headed mode. Pausing the page launches Playwright Inspector for debugging.

• New has-text pseudo-class for CSS selectors. :has-text("example") matches any element containing "example" somewhere inside, possibly in a child or a descendant element. See more examples.

• Page dialogs are now auto-dismissed during execution, unless a listener for dialog event is configured. Learn more about this.

Browser Versions

• Chromium 90.0.4421.0
• Mozilla Firefox 86.0b10
• WebKit 14.1

New APIs

• page.pause