class not found when unit testing a custom module - phpunit

Question

I'm trying to write tests for a custom module I've written on Drupal 8 and keep getting an error and at this point I'm out of ideas. Here is the error:
Error: Class 'Drupal\mypackage\Services\Config\MyClassServiceConfig' not found
The PhpUnit class is under
modules\custom\mypackage\tests\src\Unit\mypackageUserAuthTest
Here is the code
class mypackageUserAuthTest extends UnitTestCase
{
protected $user;
protected $loginService;
public function setUp()
{
parent::setUp();
$this->loginService = new LoginService();
$this->user = [
'username' => 'xxx',
'password' => 'xxx',
'deviceId' => 'xxx',
'some-token' => 'xxx'
];
}
/** #test */
public function that_we_can_authenticate_a_user()
{
$IsUserLoggedIn = $this->loginService->login($this->user['username'], $this->user['password']);
$this->assertTrue($IsUserLoggedIn);
}
Now the method login in loginService code
<?php
namespace Drupal\mypackage\Rest;
use GuzzleHttp\Exception\ClientException;
use Drupal\mypackage\Services\RestServiceFactory;
use Drupal\mypackage\Services\Config\MyClassServiceConfig;
class LoginService
{
public function login($username, $password)
{
$configs = new MyClassServiceConfig(null, "mobile", "v1");
$client = RestServiceFactory::create($configs);
try {
$response = $client->post('login', [
'json' => [
'username' => $username,
'password' => $password,
'deviceId' => 'onepiece',
],
]);
return json_decode($response->getBody(), true);
} catch (ClientException $exception) {
switch ($$exception->getResponse()->getStatusCode()) {
case 402: // This only applies to co members
throw new SubscriptionRequiredException();
case 403:
throw new BlockedAccountException();
case 409:
throw new DuplicateEmailException();
case 410:
throw new PasswordDoesNotExistException();
}
throw $exception;
}
}
}
pwd result on MyClassServiceConfig class directory
/var/www/cms/web/modules/custom/mypackage/src/Services/Config
But it seems to fail on the line $configs = new MyClassServiceConfig(null, "mobile", "v1"); with the previously mentioned error :
1) Drupal\Tests\mypackage\Unit\mypackageUserAuthTest::that_we_can_authenticate_a_user
Error: Class 'Drupal\mypackage\Services\Config\MyClassServiceConfig' not found
Btw, I'm using drupal-project structure (https://github.com/drupal-composer/drupal-project)

Answer 1

So I spent days checking the path but it seemed that the files were not loading so I ended up adding the custom module to autload-dev part composer.json.
"autoload": {
"classmap": [
"scripts/composer/ScriptHandler.php"
],
"files": ["load.environment.php"]
},
"autoload-dev": {
"psr-4": { "Drupal\\mypackage\\": "web/modules/custom/mypackage" }
},
Now at least it seems to load the module as I'm getting an other error related to Drupal Container
\Drupal::$container is not initialized yet. \Drupal::setContainer() must be called with a real container.

Answer 2

It is an old question, the same thing happened to me, as I managed to solve it in my case it was as follows:
In the comment of the class where the tests are carried out, something similar to this should go:
The #coversDefaultClass annotation must go with the namespace of the class to test.
/**
* #coversDefaultClass \Drupal\my_module\MyModuleClassName
* #group my_module
*/
class MyModuleCaseTest extends UnitTestCase {
}
Maybe it will serve someone else