grafana/xk6-browser v0.1.3

on GitHub

This release helps us to drive complex websites with xk6-browser by fixing significant frame handling bugs and improving the integration testing suite and logging.

Bugs fixed

• Fix major bug: Cannot find context with specified id (#49)

  FrameSession was blocking the frame handling mechanism, and the rest of the system couldn't propagate execution contexts, causing the context with specified id not found error. This happens when a Session is closed while a related FrameSession is booting up.

  Refactors FrameSession and frame handling code. Improves log messages and better reflects the cause of possible errors.

• Fix major bug: Cannot create frame session (#129)

  Fixes and gracefully handles cannot create frame session issue reported by #125. It does so by preventing FrameSession from throwing an error if the error is temporary and instead logs the error.

  Improves the handling of creation and destruction of execution contexts in a more stable way.

  Fixes related data race issues, refactors and cleans things up.

• Fix frame aborted navigation event nil pending document sharing (#177)

  We were sharing a nil pending document when a frame aborts navigation.

• Improve mainframe handling (#174)

  This PR skips setting the mainframe if it is already the same. It also adds sanity checks and protects the mainframe field behind a mutex.

Improvements

• Move WebSocket test server to its own package (#166)

  Refactors WebSocket test server and gives it a convenient to use interface:

  twss := ws.NewServer(t, ws.WithCDPHandler("/cdp", handler, &cmdsReceived))

• Revise, refactor, and improve the integration test suite (#140)

  This work allows us to reason about the tests better, write them quickly, and provide a first step for reducing circular dependencies between packages. We discovered subtle concurrency bugs thanks to this work. Now we can easily write an integration test like:

  newTestBrowser(t)
  newTestBrowser(t, withFileServer())
  // See the issue for more details

Internals

• Improve execution context logs (#176)

• Propagate the internal logger to more entities (#151)

  Increases the consistency of log messages and adds more detailed log messages to some entities such as BrowserContext, FrameManager, FrameSession, Page, Request, and Session.

• Update dependencies (#155)

• Introduce NewNullLogger for ease of testing (NewNullLogger)

  // Old way
  NewLogger(ctx, NullLogger(), false, nil)
  // New way
  NewNullLogger()