Argument 1 passed to Illuminate\Foundation\Testing\TestCase::actingAs() must implement interface Illuminate\Contracts\Auth\Authenticatable - laravel

Question

Argument 1 passed to Illuminate\Foundation\Testing\TestCase::actingAs() must implement interface Illuminate\Contracts\Auth\Authenticatable, instance of Illuminate\Database\Eloquent\Collection given
I have also tried some of the following methods, but none of them worked:
Argument 1 passed to Illuminate\Foundation\Testing\TestCase::actingAs()
Problem with testing method with actingAs
I hope there is another way I can solve this problem.
This is my ClipartTest.php file:
<?php
namespace Tests\Feature;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Foundation\Testing\WithFaker;
use Tests\TestCase;
class ClipartTest extends TestCase
{
use RefreshDatabase;
/**
* A basic feature test example.
*
* #return void
*/
public function test_can_get_clipart()
{
$this->withoutExceptionHandling();
$user = User::factory(3)->create();
$this->actingAs($user, 'api');
$this->getJson('/api/cliparts')
->assertStatus(201)
;
}
This is my User.php file
<?php
namespace App\Models;
use App\Http\Traits\Uuid;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Laravel\Sanctum\HasApiTokens;
class User extends Authenticatable
{
use Authenticatable, HasFactory, Notifiable, HasApiTokens;
use Uuid;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'name',
'email',
'password',
];
This is my Clipart.php file:
<?php
namespace App\Models;
use App\Http\Traits\Uuid;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class Clipart extends Model
{
use HasFactory;
use Uuid;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'user_id',
'name',
'image_id',
];

Answer 1

You are creating 3 users with the factory and therefore the $user will actually return a collection of 3 users.
Instead of User::factory(3)->create() do User::factory()->create() so that it would return a single user model.