public function testCreateDocument_UseIdentityMap()
{
$user1 = $this->uow->createDocument($this->type, array('_id' => '1', '_rev' => 1, 'username' => 'foo', 'type' => $this->type));
$user2 = $this->uow->createDocument($this->type, array('_id' => '1', '_rev' => 1, 'username' => 'foo', 'type' => $this->type));
$this->assertSame($user1, $user2);
}