text: def test_mongo_cache(mongo_cache):
      key1 = "key"
      value1 = "value"
  
      mongo_cache[key1] = value1
      assert mongo_cache[key1] == value1
      assert len(mongo_cache) == 1
      assert set(mongo_cache.keys()) == {key1}
      assert set(mongo_cache.values()) == {value1}
      mongo_cache[value1] = key1
      assert len(mongo_cache) == 2
      del mongo_cache[value1]
      assert not mongo_cache[value1]
      assert len(mongo_cache) == 1
      mongo_cache.destroy()
      assert len(mongo_cache) == 0
  