Disable Laravel exception handling for Tests

Question

I am following along this course testdrivenlaravel, and it mentions a way disable the Laravel's exception handling to prevent Laravel from handling exceptions that occur and instead throwing it, so we can get a more detailed error in our tests output.

So I added this method in my testcase class, and in the render method I am throwing the exception

protected function disableExceptionHandling() {

    $this->app->instance(Handler::class, new class extends Handler {
        public function __construct()
        {
        }
        public function report(\Exception $e)
        {
        }
        public function render($request, \Exception $e)
        {
            throw $e;
        }
    });
}

But whenever I call it in a test, to get more detailed error, I still get the same errors that Laravel Handler is rendering.

When I change the Handler class directly like this:

public function render($request, Exception $exception)
{
    throw $exception;
    // return parent::render($request, $exception);
}

I get the detailed errors, but I need to get the disableExceptionHandling helper work.

Answer 1

Put this at the top of your test method:

    $this->withoutExceptionHandling();

You don't need to create a method for this, it's included in laravel's 'InteractsWithExceptionHandling' trait which is used by the abstract TestCase that you should be extending from your test.