Disable exception handling in Laravel acceptance tests

0.md

Just a quick helper method you can add to your base TestCase to make it easy to toggle exception handling on the fly. Improved a little bit from the sloppier version I used in the screencast :)

Update 2016-11-09:

At some point since I originally shared this snippet and the accompanying screencast, Laravel started binding App\Exceptions\Handler under the Illuminate\Contracts\Debug\ExceptionHandler interface instead of the concrete class, so I've updated the files below to account for that.

Update 2020-11-18

@stefnats made some further improvements to disable throwing exception handling on

• ModelNotFoundException / NotFoundHttpException -> return HTTP 404 instead
• UnauthorizedHttpException -> return HTTP 401 instead
• AuthenticationException -> return HTTP 401 instead
• ValidationException -> return default response with HTTP 422 instead

This prevents common test cases from failing or being marked as E in the php testsuite, for example when you want to test for not existent resources

1-TestCase70.php

<?php

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

class TestCase extends Illuminate\Foundation\Testing\TestCase
{
    
    // Framework-supplied test case methods snipped for brevity

    // Use this version if you're on PHP 7
    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 $e) {
                if ($e instanceof ModelNotFoundException || $e instanceof NotFoundHttpException) {
                    return new Response(null, Response::HTTP_NOT_FOUND);
                }
                if ($e instanceof UnauthorizedHttpException) {
                    return new Response(null, Response::HTTP_UNAUTHORIZED);
                }
                if ($e instanceof AuthenticationException) {
                    return new Response(null, Response::HTTP_UNAUTHORIZED);
                }
                if ($e instanceof ValidationException) {
                    return parent::render($request, $e);
                }
                throw $e;
            }
        });
    }
}

2-TestCase56.php

<?php

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

class TestCase extends Illuminate\Foundation\Testing\TestCase
{

    // Framework-supplied test case methods snipped for brevity

    // Use this version if you're on PHP 5
    protected function disableExceptionHandling()
    {
        app()->instance(ExceptionHandler::class, new PassThroughHandler);
    }
}

class PassThroughHandler extends Handler
{
    public function __construct() {}

    public function report(Exception $e)
    {
        // no-op
    }

    public function render($request, Exception $e)
    {
        if ($e instanceof ModelNotFoundException || $e instanceof NotFoundHttpException) {
            return new Response(null, Response::HTTP_NOT_FOUND);
        }
        if ($e instanceof UnauthorizedHttpException) {
            return new Response(null, Response::HTTP_UNAUTHORIZED);
        }
        if ($e instanceof AuthenticationException) {
            return new Response(null, Response::HTTP_UNAUTHORIZED);
        }
        if ($e instanceof ValidationException) {
            return parent::render($request, $e);
        }
        throw $e;
    }
}