Laravel Unit test login of inactive user

I would like to test the case when a user is marked as inactive in db, here is the method in LoginController

protected function credentials(Request $request)
{
    $credentials = $request->only($this->username(), 'password');
    $credentials['status'] = "A";

    return $credentials;
}

therefore I create a fake user and I use the following test to cover the case

 $this->faker = Faker::create();
    $password = $this->faker->password;
    $user = factory(User::class)->create([
        'username' => $this->faker->username,
        'firstname' => $this->faker->firstName,
        'lastname' => $this->faker->lastName,
        'status'=> 'I',
        'password' => bcrypt($password),
        'email' => $this->faker->email
    ]);

    $response = $this->call('POST', '/login', [
       'email' => $user->email,
       'password' =>$password,
        '_token' => csrf_token()
    ]);

    $response->assertRedirect('/login');

but the user is getting logged in each time.

What I miss in this case?

via Chebli Mohamed