Test Doesnt Display Errors Correctly

I am confused, you said you don't have the method in your controller and the error says exactly that you don't have the method in your controller... it seems correct.

yes it is in $reaponse object and I can check it with dd() method but the problem is it doesn't pop up when I run my the test. Test will pass.

Because in Exceptions/handler.php you are catching that exception so PHPUnit does not report any error.

You may "disable" error handling while testing using this snippet

public function render($request, Exception $exception)
{
    if (App::environment('testing')) {
        throw $exception;
    }
    ...
}

And better yet there is this video which may be even better.

Awesome you saved me, thanks alot !

From @kyslik's link the updated code for L6 with dusk:

in tests/DuskTestCase.php add disableExceptionHandling()

use Exception;
use App\Exceptions\Handler;
use Illuminate\Contracts\Debug\ExceptionHandler;

abstract class DuskTestCase extends BaseTestCase
{
    use CreatesApplication;

    /**
     * To show the phpunit/dusk exceptions
     */
    protected function disableExceptionHandling()
    {
        $this->app->instance(ExceptionHandler::class, new class extends Handler {
            public function __construct() {}
            
            public function report(Exception $e)
            {
                // no-op
            }
            
            public function render($request, Exception $e) {
                throw $e;
            }
        });
    }
    ...
}

In your testcase file tests/Browser/ViewAnotherUsersTweetsTest.php

class ViewAnotherUsersTweetsTest extends DuskTestCase
{
    use DatabaseMigrations;

    protected function setUp(): void {
        parent::setUp();
        $this->disableExceptionHandling();
    }
    ...
}