/**
  * @covers PPI\Framework\ServiceManager::hasAlias
  */
 public function testHasAlias()
 {
     $this->assertFalse($this->serviceManager->hasAlias('foo'));
     $this->serviceManager->setService('bar', 'baz');
     $this->serviceManager->setAlias('foo', 'bar');
     $this->assertTrue($this->serviceManager->hasAlias('foo'));
 }