public function classesFromInactivePackagesAreNotLoaded()
{
$this->classLoader = new ClassLoader();
$allPackages = ['Acme.MyApp' => $this->mockPackage1, 'Acme.MyAppAddon' => $this->mockPackage2];
$activePackages = ['Acme.MyApp' => $this->mockPackage1];
$this->classLoader->setPackages($activePackages);
mkdir('vfs://Test/Packages/Application/Acme.MyAppAddon/Classes/Acme/MyAppAddon', 0770, true);
file_put_contents('vfs://Test/Packages/Application/Acme.MyAppAddon/Classes/Acme/MyAppAddon/Class.php', '<?php ' . __CLASS__ . '::$testClassWasLoaded = TRUE; ?>');
$this->classLoader->loadClass('Acme\\MyAppAddon\\Class');
$this->assertFalse(self::$testClassWasLoaded);
}