pool.maxConcurrentInstanceCreateOps = 2
res = pool.Create(type1)
c.Check(pool.Unallocated()[type1], check.Equals, 2)
c.Check(res, check.Equals, true)
pool.maxConcurrentInstanceCreateOps = 2
res = pool.Create(type1)
c.Check(pool.Unallocated()[type1], check.Equals, 2)
c.Check(res, check.Equals, true)