Create OAuth Bearer token for testing

TestCase.php

<?php

$this->client = app(ClientRepository::class)->create(null, $clientName, '');
$response = $this->post(route('passport.token'), [
    'grant_type' => 'client_credentials',
    'client_id' => $this->client->getKey(),
    'client_secret' => $this->client->plainSecret,
    'scope' => implode(' ', $scopes)
]);
$this->token = $response->json('token_type').' '.$response->json('access_token');

//Passport::actingAsClient($this->client, AccountScopes::keys());