factory not being found in PHP Feature Test Laravel-8 - php

Question

Just playing around with laravel-8 unit tests. I extended the basic TestCase and thought laravels factory method would be available. I checked the composer.json and the factories are being loaded.
I am trying to run this particular test but factory is not found any ideas:
<?php
namespace Tests\Feature\Http\Controllers\Auth;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Foundation\Testing\WithFaker;
use Tests\TestCase;
use App\User;
class LoginControllerTest extends TestCase
{
use RefreshDatabase;
/** #test */
public function login_authenticates_and_redirects_user()
{
$user = factory(User::class)->create();
$response = $this->post(route('login'), [
'email' => $user->email,
'password' => 'password'
]);
$response->assertRedirect(route('home'));
$this->assertAuthenticatedAs($user);
}
}
The error I am getting is:
1) Tests\Feature\Http\Controllers\Auth\LoginControllerTest::login_authenticates_and_redirects_user
Error: Call to undefined function Tests\Feature\Http\Controllers\Auth\factory()

Answer 1

On laravel 8 models are at 'App\Models\'.
It changes how factory works. See at docs.
So, it should be like:
<?php
namespace Tests\Feature\Http\Controllers\Auth;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Foundation\Testing\WithFaker;
use Tests\TestCase;
use App\Models\User;
class LoginControllerTest extends TestCase
{
use RefreshDatabase;
/** #test */
public function login_authenticates_and_redirects_user()
{
$user = User::factory->create();
$response = $this->post(route('login'), [
'email' => $user->email,
'password' => 'password'
]);
$response->assertRedirect(route('home'));
$this->assertAuthenticatedAs($user);
}
}

Answer 2

Turns out in upgrading to laravel-8 release notes:
https://laravel.com/docs/8.x/upgrade#seeder-factory-namespaces
"Laravel's model factories feature has been totally rewritten to support classes and is not compatible with Laravel 7.x style factories."
So in order to make it work I used:
$user = \App\Models\User::factory(User::class)->make();