code: def test_pop(self):
      h = [3, 4, 6, 0, 1, 2, 5]
      h_sorted = sorted(h)
      q = self._make_mapped_queue(h)
      q._heapify()
      popped = [q.pop() for _ in range(len(h))]
      assert popped == h_sorted
      self._check_map(q)
  
imports: import pytest
  from networkx.utils.mapped_queue import MappedQueue, _HeapElement
label_desc: Use image node_id 18 for calling the TestMappedQueue obj's underlying member method code with example usage: obj.test_pop() without return types