/**
* @dataProvider instanceProvider
* @param Entity $entity
*/
public function testCopy(Entity $entity)
{
$copy = $entity->copy();
// The equality method alone is not enough since it does not check the IDs.
$this->assertTrue($entity->equals($copy));
$this->assertEquals($entity->getId(), $copy->getId());
$this->assertNotSame($entity, $copy);
}