Laravel PhpUnit 'Undefined variable: errors' - laravel-5

Question

I try to use PhpUnit with Laravel 5.2.
When I run this test:
class TestInscription extends TestCase
{
/******************************************************************************/
/* pour lancer le test : C:\wamp\www\compet>phpunit tests/TestInscription.php */
/******************************************************************************/
function __construct()
{
parent::setUp();
}
public function testInscriptionAvecErreur()
{
$this->visit('inscription')
->seePageIs('inscription')
->see('Inscription')
->type('', 'nom')
->type('', 'prenom')
->type('', 'email')
->type('', 'password')
->type('', 'password_confirm')
->press('bouton_valider')
->seePageIs('inscription')
->see('Nom obligatoire')
->see('Prénom obligatoire')
->see('Adresse email obligatoire')
->see('Mot de passe obligatoire');
}
I have a response "OK".
When I add a second test into the same class, like this :
class TestInscription extends TestCase
{
/******************************************************************************/
/* pour lancer le test : C:\wamp\www\compet>phpunit tests/TestInscription.php */
/******************************************************************************/
function __construct()
{
parent::setUp();
}
public function testInscriptionAvecErreur()
{
$this->visit('inscription')
->seePageIs('inscription')
->see('Inscription')
->type('', 'nom')
->type('', 'prenom')
->type('', 'email')
->type('', 'password')
->type('', 'password_confirm')
->press('bouton_valider')
->seePageIs('inscription')
->see('Nom obligatoire')
->see('Prénom obligatoire')
->see('Adresse email obligatoire')
->see('Mot de passe obligatoire');
}
public function testInscriptionAvecErreurMdp()
{
$this->visit('inscription')
->seePageIs('inscription')
->see('Inscription')
->type('azerty', 'password')
->type('azertyu', 'password_confirm')
->press('bouton_valider')
->seePageIs('inscription')
->see('Les 2 mots de passe sont différents');
}
}
then I have an error on the first test (the second one is not triggered). The error is:
Time: 2.69 seconds, Memory: 20.50MB
There was 1 failure:
1) TestInscription::testInscriptionAvecErreur
A request to [http://localhost/inscription] failed. Received status code [500].
C:\wamp\www\compet\vendor\laravel\framework\src\Illuminate\Foundation\Testing\Concerns\InteractsWithPages.php:196
C:\wamp\www\compet\vendor\laravel\framework\src\Illuminate\Foundation\Testing\Concerns\InteractsWithPages.php:80
C:\wamp\www\compet\vendor\laravel\framework\src\Illuminate\Foundation\Testing\Concerns\InteractsWithPages.php:61
C:\wamp\www\compet\tests\TestInscription.php:21
C:\wamp\www\ecole\vendor\phpunit\phpunit\src\TextUI\Command.php:149
C:\wamp\www\ecole\vendor\phpunit\phpunit\src\TextUI\Command.php:100
Caused by
exception 'ErrorException' with message 'Undefined variable: errors' in C:\wamp\www\compet\storage\framework\views\7a56ba5973bcafaa00c3a5edb3816871f0ac8a17.php:44
I see in this view:
<div class="form-group <?php echo e($errors->has('nom') ? 'has-error has-feedback' : ''); ?>">
Certainly the error is because this variable "$errors", but what?
and why the first test runs fine when it is alone. And fails when I add a second test?

Answer 1

I found the error (but don't know if it is the real reason).
When I create several functions into my class, then I have the error. When I create only 1 function into my class, then I have no errors.
So I decided to create only 1 function per test class (even if the function can be very long).