old_contents: from . import Storage
  
  
  def test_contains(tmpdir):
      storage = Storage(str(tmpdir))
      name = "foo"
      # check if it is not there yet
      assert name not in storage
      with storage.create(name, 0) as item:
          # we just want it created, no need to write sth into it
          pass
      # check if it is there
      assert name in storage
      storage.remove(name)
      # check if it is gone
      assert name not in storage
  
new_contents: from . import Storage
  
  
  def test_contains(tmpdir):
      storage = Storage(str(tmpdir))
      name = "foo"
      # check if it is not there yet
      assert name not in storage
      with storage.create(name, 0) as item:
          # we just want it created, no need to write sth into it
          pass
      # check if it is there
      assert name in storage
      storage.remove(name)
      # check if it is gone
      assert name not in storage
  
  
  def test_iter(tmpdir):
      storage = Storage(str(tmpdir))
      # nothing there yet
      assert list(storage) == []
      names = ["foo", "bar", "baz", ]
      for name in names:
          with storage.create(name, 0) as item:
              # we just want it created, no need to write sth into it
              pass
      assert set(list(storage)) == set(names)
  
  
subject: test for name iteration in storage