PHPUnit test fails when it should pass

Hi all. I am running this test, where in fact I am testing my polices, that a user cannot do what he is not supposed to:

<?php

declare(strict_types=1);

namespace Tests\Feature\Client;

use App\Models\Client;
use App\Models\User;
use PHPUnit\Framework\Attributes\Test;
use Tests\TestCase;

class OthersRecordsTest extends TestCase
{
    #[Test]
    public function list_have_only_own_records()
    {
        $response = $this->get(route('clients.list'));

        $response->assertDontSee($this->foreignClient->name);
        $response->assertSee($this->ownClient->name);
    }

    #[Test]
    public function cannot_view_foreign_record()
    {
        $response = $this->get(route('client.show', ['id' => $this->foreignClient->id]));

        $response->assertStatus(403);
    }

    #[Test]
    public function cannot_view_edit_form_for_foreign_record()
    {
        $response = $this->get(route('client.edit', ['id' => $this->foreignClient->id]));

        $response->assertStatus(403);
    }

    #[Test]
    public function cannot_edit_foreign_record()
    {
        $this->foreignClient->save(['name' => 'Some test Name']);

        $this->assertDatabaseMissing('clients', ['name' => 'Some test Name']);
    }

    #[Test]
    public function cannot_delete_foreign_record()
    {
        $this->foreignClient->delete();

        $this->assertDatabaseHas('clients', ['name' => $this->foreignClient->name]);
    }

    #[Test]
    protected function setUp(): void
    {
        parent::setUp();

        $user = User::factory()->create();
        $user->assignRole('ProjectOwner');
        $this->actingAs($user);
        $this->ownClient = Client::factory()->create(['user_id' => $user->id]);

        $users = User::all()->where('id', '!=', $user->id);

        $this->foreignClient = Client::factory()->create([
            'user_id' => $users->random(1)->first()->id,
        ]);
    }
}

For some reason, the test cannot_delete_foreign_record fails i.e. the client is deleted, when it should not, because in my Client model policy I have this:

    /**
     * Determine whether the user can delete the client.
     */
    public function delete(User $user, Client $client): bool
    {
        return $user->can('delete_client') || $client->user_id === $user->id;
    }

The test result:

FAILED  Tests\Feature\Client\OthersRecordsTest > cannot delete foreign record
  Failed asserting that a row in the table [clients] matches the attributes {
    "name": "Runolfsson-Durgan"
}.

Found: [
    {
        "name": "Aufderhar, Schiller and Marvin"
    },
    {
        "name": "Barrows, Glover and Murray"
    },
    {
        "name": "Bergnaum, Dibbert and Ferry"
    }
] and 23 others.

  at tests\Feature\Client\OthersRecordsTest.php:52
     48▕     public function cannot_delete_foreign_record()
     49▕     {
     50▕         $this->foreignClient->delete();
     51▕
  ➜  52▕         $this->assertDatabaseHas('clients', ['name' => $this->foreignClient->name]);
     53▕     }
     54▕
     55▕     #[Test]
     56▕     protected function setUp(): void


  Tests:    1 failed, 4 passed (6 assertions)
  Duration: 7.59s

The assigned role 'ProjectOwner' doesn't have permission to delete_client.

What am I doing wrong on my test? Because all the other tests pass.