API testing with json() and seeJson()

UpdateUserTest.php

<?php

use App\User;
use App\Profile;

use Illuminate\Foundation\Testing\WithoutMiddleware;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Illuminate\Foundation\Testing\DatabaseTransactions;

class UpdateUserTest extends TestCase
{
    use DatabaseMigrations, WithoutMiddleware;

    /**
     * A basic functional test example.
     *
     * @return void
     */
    public function testUpdatingUser()
    {
        $user = factory(User::class)->create(['username' => 'my-username']);

        $profile = factory(Profile::class)->make(['bio' => 'my-bio']);

        $user->profile()->save($profile);

        $this->be($user);

        $this->json('PUT', '/api/users/'.$user->uuid, [
            'bio' => 'new-bio',
            'username' => 'new-username'
        ])->seeJson([
            'success' => true
        ]);

        $this->visit('/api/users/'.$user->uuid)
            ->see('new-bio')
            ->see('new-username');
    }
}

rewrote it and the ->assertResponseOk() method is giving me better errors if i purposely put one in the controller

<?php

use App\User;
use App\Profile;

use Illuminate\Foundation\Testing\WithoutMiddleware;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Illuminate\Foundation\Testing\DatabaseTransactions;

class UserRestTest extends TestCase
{
    use DatabaseMigrations, WithoutMiddleware;

    /**
     * A basic functional test example.
     *
     * @return void
     */
    public function testUpdatingUser()
    {
        $user = factory(User::class)->create(['username' => 'my-username']);

        $profile = factory(Profile::class)->make(['bio' => 'my-bio']);

        $user->profile()->save($profile);

        $this->be($user);

        $this->put('/api/users/'.$user->uuid, [
            'bio' => 'new-bio',
            'username' => 'new-username'
        ])->assertResponseOk();

        $this->get('/api/users/'.$user->uuid)
            ->seeJson([
                'bio' => 'new-bio',
                'username' => 'new-username'
            ]);
    }
}