ViewPostsTest.php

<?php

namespace Tests\Feature;

use App\Models\Post;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Foundation\Testing\WithFaker;
use Tests\TestCase;

class ViewPostsTest extends TestCase
{
    use HasFactory;
    use RefreshDatabase;

    /** @test */
    public function a_guest_can_view_the_blog_post_archive()
    {
        list($postA, $postB, $postC) = Post::factory()->count(3)->create();

        $response = $this->get('/posts');

        $response->assertViewHas('posts', new Collection([
            $postA->fresh(),
            $postB->fresh(),
            $postC->fresh(),
        ]));
    }
}