public function testSetPluginManagerAllowsSettingAlternatePluginManager()
 {
     $defaultManager = $this->inflector->getPluginManager();
     $manager = new FilterPluginManager();
     $this->inflector->setPluginManager($manager);
     $receivedManager = $this->inflector->getPluginManager();
     $this->assertNotSame($defaultManager, $receivedManager);
     $this->assertSame($manager, $receivedManager);
 }