flox/backend/tests/Setting/UserTest.php

<?php

  use Illuminate\Foundation\Testing\DatabaseMigrations;

  class UserTest extends TestCase {

    use DatabaseMigrations;

    protected $user;

    public function setUp()
    {
      parent::setUp();

      $this->user = factory(App\User::class)->create();
    }

    /** @test */
    public function change_user_data_only_if_user_is_logged_in()
    {
      $this->json('PATCH', 'api/userdata', [
        'username' => 'Ganta',
        'password' => 'Igarashi',
      ]);

      $this->seeStatusCode(401);
    }

    /** @test */
    public function save_new_username()
    {
      $this->assertNotEquals('Ganta', $this->user->username);

      $this->actingAs($this->user)->json('PATCH', 'api/userdata', [
        'username' => 'Ganta',
        'password' => 'Igarashi',
      ]);

      $this->assertEquals('Ganta', $this->user->username);
    }

    /** @test */
    public function save_new_password()
    {
      $oldPassword = $this->user->password;

      $this->actingAs($this->user)->json('PATCH', 'api/userdata', [
        'username' => 'Ganta',
        'password' => 'Igarashi'
      ]);

      $this->assertNotEquals($oldPassword, $this->user->password);
    }

    /** @test */
    public function change_password_only_if_new_password_is_given()
    {
      $oldPassword = $this->user->password;

      $this->actingAs($this->user)->json('PATCH', 'api/userdata', [
        'username' => 'Ganta',
        'password' => ''
      ]);

      $this->assertEquals($oldPassword, $this->user->password);
    }

    /** @test */
    public function user_can_login_with_correct_credentials()
    {
      $this->json('POST', 'api/login', [
        'username' => $this->user->username,
        'password' => 'secret',
      ]);

      $this->seeStatusCode(200);
    }

    /** @test */
    public function user_can_not_login_with_wrong_credentials()
    {
      $this->json('POST', 'api/login', [
        'username' => $this->user->username,
        'password' => 'wrong_password',
      ]);

      $this->seeStatusCode(401);
    }
  }