Error en la prueba guests_cannot_update_posts

[miguelcabgil]

Tests\Feature\UpdatePostTest::guests_cannot_update_posts
Expected status code 403 but received 302.
Failed asserting that false is true.

/var/www/html/ValetProjects/styde-gates-mine/vendor/laravel/framework/src/Illuminate/Foundation/Testing/TestResponse.php:133
/var/www/html/ValetProjects/styde-gates-mine/tests/Feature/UpdatePostTest.php:73

Versión de laravel: 5.7.*

Código de la prueba guests_cannot_update_posts:

/** @test */
function guests_cannot_update_posts()
{
$this->withoutExceptionHandling();
$post = factory(Post::class)->create();

    $response = $this->put("admin/posts/{$post->id}", [
        'title' => 'Updated post title',
    ]);

    $response->assertRedirect('login');

    $this->assertDatabaseMissing('posts', [
        'id' => $post->id,
        'title' => 'Updated post title',
    ]);
}