How to test custom exception handling

Hi there!

I'm using inertia with my laravel project and implement a modified exception handling as suggested by inertia:

    /**
     * Render the exception into an HTTP response.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function render($request, Throwable $e)
    {
        $response = parent::render($request, $e);

        if ((!app()->environment(['local', 'testing']) && in_array($response->status(), [500])) || in_array($response->status(), [403, 404, 503])) {

            return \Inertia::render('app.error.show', [
                'auth' => 'test123',
                'inertiaEnv' => 'app',
                'errors' => [
                    'code' => $response->status(),
                    'text' => $response->statusText()
                ]
            ])
                ->toResponse($request)
                ->setStatusCode($response->status());
        } else if ($response->status() === 419) {
            return back()->with([
                'message' => 'The page expired, please try again.',
            ]);
        }

        return $response;
    }

I want now implement a test which catch the response and check, the expected values are existing:

    public function test_error_handler_return_expected()
    {
        $response = $this->get('/unknownPage');

        $response->assertStatus(404);
        $response->assertJson([
            'component' => 'app.error.show',
            'props' => [
                'auth' => 'test123',
                'inertiaEnv' => 'app',
                'errors' => [
                    'code' => '404',
                    'text' => 'Not found'
                ],
            ],
            'url' => '/unknownPage'
        ]);
    }

Problem is now, that the response check are never reached. So I far I understands, it's because exception is thrown. But with $this->withoutExceptionHandling(); it sill does not pass the response checks. I also try to catch the exception with try {} catch(\Exception $e) {} but in that situation i did not get the response from the previous call. What I need is simply url call without any exception handling. Is there anything?

Pragmatic solution could be, using guzzle directly because there I should get the response, but it isn't full integrated into the testing environment.