telescope: Call to undefined method Illuminate\Support\Testing\Fakes\EventFake::getListeners()

We’ve just updated to Laravel 5.8, and using the latest Telescope v2.0.0, and we get this error in some unit tests - seems to be because Telescope is trying to run getListeners() and it doesn’t exist.

   │ Error: Call to undefined method Illuminate\Support\Testing\Fakes\EventFake::getListeners()
   │ 
   │ /var/www/vendor/laravel/telescope/src/Watchers/EventWatcher.php:82
   │ /var/www/vendor/laravel/telescope/src/Watchers/EventWatcher.php:46
   │ /var/www/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php:344
   │ /var/www/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php:196
   │ /var/www/vendor/laravel/framework/src/Illuminate/Support/Testing/Fakes/EventFake.php:201
   │ /var/www/vendor/laravel/framework/src/Illuminate/Support/Testing/Fakes/EventFake.php:257
   │ /var/www/vendor/owen-it/laravel-auditing/src/Auditor.php:99
   │ /var/www/vendor/owen-it/laravel-auditing/src/Auditor.php:65
   │ /var/www/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php:237
   │ /var/www/vendor/owen-it/laravel-auditing/src/AuditableObserver.php:38

About this issue

Original URL
State: closed
Created 5 years ago
Comments: 15 (8 by maintainers)

Most upvoted comments

@themsaid I’m also getting this issue. I’ve tried to debug the code a bit and this is what happens for us when we have a test that fakes the event dispatcher:

I added a breakpoint at EventFake:201 to see which events passed through this line and at first it was a bunch of eloquent events, which went fine, but as soon as an event from a library was passed to that line the exception occurs.

Obviously Telescope ignores all the eloquent events, so this is the first event that occurs that Telescope tries to format the listeners for. Since faking events replaces the default event dispatcher with EventFake and EventFake doesn’t have a getListeners() method, Telescope’s event watcher can’t format the listeners for the given event.

I hope this information helps a bit.

willemo on May 29, 2019

Thanks @jorenvh. That helped. I’ve sent in a fix for this here: https://github.com/laravel/telescope/pull/866

driesvints on Apr 9, 2020

I just confirmed that Telescope is indeed not disabled by default during testing and nor should it. So we’ll investigate this issue.

driesvints on Apr 7, 2020

@jorenvh Telescope should definitely be disabled when running your tests.

driesvints on Apr 6, 2020