public function testMerge()
{
$user1 = $this->createTestObject();
$user1->setId(1);
$user1->setUsername('jonwage');
$user1->setPassword('password');
$user2 = $this->objectManager->find($this->userClassName, 1);
$this->objectManager->merge($user1);
$this->assertEquals('jonwage', $user2->getUsername());
}