php artisan "Command "test" is not defined."

And does running php artisan list lists the test command in the available commands part?

Try running composer dump-autoload in case you upgraded recently.

Thanks for your reply. I already tried composer dump-autoload, with no luck.

In fact, the test command doesn't show up in the list. It had me thinking, a while ago I had a command called test:run (before I was aware of this artisan command), but it has been removed now. Could this be causing my current issue?

@dpcreations I would delete your vendor directory and try running composer install to see if that helps.

I don't think your old command would conflicting because it would be found if it was. If that makes sense.

I don't think so. Just make sure that you are really running the 7.14 version as you say by running php artisan --version because on my project I have 7.7.1 and the command is there.

Make sure you update all the dependencies as well.

https://laravel.com/docs/7.x/testing#artisan-test-runner

Alright, so I pulled up the composer.json file from my other project, and compared my dependencies. For some reason, I was missing nunomaduro/collision.

Thanks both for your replies, they got me in the right direction.

Just come across this randomly...

if you do composer install -o --no-dev, you will not be able to run php artisan test

i will never say I tried to run php artisan test on production

Just to confirm that composer install ... --no-dev removes the test command (in my case it was composer install --optimize-autoloader --no-dev). This is fixed with composer install

I am still facing this issue, I am on Laravel Framework 8.83.2 and nunomaduro/collision v5.11.0

I am getting the above error. Not sure what am I missing?

In case it can help someone in the future: I solved this by deleting the bootstrap/cache/packages.php file (there's probably an artisan command that clears it as well, but I did it manually in my case).