PHPUnit test $obj = new ProgTestClass() don't craate controller's object

Hi All

I'm writing a small test and I want to check the value of a property after calling initController

PHP Code:

      $obj = new \App\Controllers\Prog();
      $this->assertTrue( $obj->baseOK ); 


Unfortunately, after running the tests I get the following message:
1) App\Controllers\ProgTest::testinitController
Error: Cannot access protected property App\Controllers\Prog::$baseOK

I am using CI4 and phpunit PHPUnit 10.5.41
Thank you in advance for all replies