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.
Retaining traces in the following scenarios:
- browser crash;
- manual `browser.close()`;
- implicit `browser.close()` from the `browser` fixture upon test end.
This does not affect the library, where `browser.close()` will not
retain the trace and will close the browser as fast as possible.
References #31541, #31535, #31537.
Matching bu `apiName@wallTime` fails when two actions start at the same
time, e.g. two parallel api requests. Moreover, it results in trace
actions that have parent set to themselves, which in turn causes
infinite loop in the trace viewer. To avoid this problems we write
stepId explicitly to the library trace and use those step ids to find
corresponding test runner steps.
The stepId is passed via zone in case of expect, because the protocol
step is quite deep in the call chain after or explicitly in case of API
call steps created by the test runner instrumentation.
Similarly to page.close, we pass test-runner specific reason to
facilitate better error messages.
```
1) a.test.ts:10:11 › test
Error: apiRequestContext.fetch: Fixture { request } from beforeAll cannot be reused in a test.
- Recommended fix: use a separate { request } in the test.
- Alternatively, manually create APIRequestContext in beforeAll and dispose it in afterAll.
See https://playwright.dev/docs/api-testing#sending-api-requests-from-ui-tests for more details.
9 |
10 | test('test', async () => {
> 11 | await context.fetch('http://example.com');
| ^
12 | });
13 |
```
Closes#29260.
- Automatically waiting for the overlay locator to be hidden, with
`allowStayingVisible` opt-out.
- `times: 1` option.
- `removeLocatorHandler(locator, handler)` method.
- Passing `locator` as first argument to `handler`.
Fixes#30471. Fixes#30424. Fixes#29779.
When websocket disconnects during `browserType.connect()` call, the
error looks like this now:
```
browserType.connect: Custom error message received over WebSocket
```
Previously, it was a generic error:
```
browserType.connect: Target page, context or browser has been closed
```
The metadata.error change was brought back in
https://github.com/microsoft/playwright/pull/29271and it broke java port
as we could have error and result set simulteniously. This PR moves the
logic to the trace recorder instead and keeps the protocol contract
clear that either error or result is present, but not both.
- Keep main frames in a separate bucket, so that page methods that
redirect to the main frame continue to work.
- Increase default dispatchers limit to `10_000`.
- Increase dispatchers limit for `JSHandle`/`ElementHandle` to
`100_000`.
Fixes#28320, #28503.
We used to have a fake `error` property, so that trace viewer shows
failed expectes as such. Today, we have a step for each expect that
contains a proper error. Sending the fake error to the client confuses
language ports.
