public function testDuplicateIdentifiersAreNotRegistered() { $events = new EventManager(array(__CLASS__, get_class($this))); $identifiers = $events->getIdentifiers(); $this->assertSame(count($identifiers), 1); $this->assertSame($identifiers[0], __CLASS__); $events->addIdentifiers(__CLASS__); $this->assertSame(count($identifiers), 1); $this->assertSame($identifiers[0], __CLASS__); }