In this test, the trace recording goes super fast. Sometimes, this means
that the recording is finished before the screen recorder got a chance
to take a screenshot. If that happens, the tests fail because we never
show a screenshot.
This PR fixes the flakiness by delaying the trace recording so that
there's always a screenshot taken.
Those were just workarounds for browser-specific bugs, they should be
fixed upstream.
* individual mouse down/up/down/up events don't trigger dblclick event
in Firefox
* setContent throws when document.open/write is called in the utility
context in Firefox
Closes https://github.com/microsoft/playwright/issues/23964.
Trace snapshots are a best-effort snapshots of the browser DOM, but we
can't guarantee them to be exactly what the browser showed. One example
of this is `canvas` elements, where you just can't see their contents.
That makes snapshots useful, but not perfect.
For those cases where the snapshot doesn't show everything, this PR
introduces a new setting to show a screenshot instead. You won't be able
to scroll or inspect the DOM or select a locator anymore. But if the
snapshot was missing something, or displaying something wrong, you can
now check the screenshot instead.
Instead of plumbing it through a custom unspecified config field, make
it a part of plugin interface.
Additionally, use task runner for starting/stopping dev server.
This pull request introduces initial support for the WebDriver BiDi
protocol in Playwright. The primary goal of this PR is not to fully
implement BiDi but to experiment with the current state of the
specification and its implementation. We aim to identify the biggest
gaps and challenges that need to be addressed before considering BiDi as
the main protocol for Playwright.
In the `visit` method, we currently cache the rendered HTML for every
walked node. This re-use works well for traces that consist mostly of
references to earlier snapshots.
But for traces that don't share much, this is a large memory overhead
and leads to the memory crash documented in
https://github.com/microsoft/playwright/issues/32336. For the algocracks
amongst you, the current memory usage for an html tree $h$ is
$\mathcal{O}(|h| * \text{height}(h))$.
This PR removes that cache from the nodes and replaces it with a
snapshot-level cache, fixing the memory crash.
Traces *without* reference should not see a performance impact from
this.
Traces *with* references will have slower initial rendering, but
re-rendering maintains speed because of the snapshot-level cache.
Closes https://github.com/microsoft/playwright/issues/32336
---------
Signed-off-by: Simon Knott <info@simonknott.de>
Co-authored-by: Max Schmitt <max@schmitt.mx>
After API review we decided to revert it:
* VSCode extension and UI mode users already get the (runtime) error if
the tag is not prefixed
* The typescript error message is not very nice
* The type change would break those clients that generate tests with
tags passed as string
This reverts commit 90e7b9ebacbd597b7380522001eb6d17ee9c3d86.
Closes https://github.com/microsoft/playwright/issues/32076.
This PR rewrites `watchMode.ts` to use `TestServer` under the hood. It's
essentially a complete rewrite, so don't pay too much attention on the
old implementation. Note that there's no changes to tests, so all
behaviour we have specced out there still works.
To make this work without a superfluous WebSocket connection, I had to
refactor `TestServerConnection` a little. Originally, I pulled this into
a [separate PR](https://github.com/microsoft/playwright/pull/32132), but
then realised how small the refactoring is. So it's in this PR now. Let
me know if you'd like to land it separately.
