def test_setdefault(self, empty_ops):
		assert len(empty_ops.operations) == 0
		empty_ops.setdefault('fnord', 42)
		assert len(empty_ops.operations) == 1
		assert empty_ops.operations['fnord'] == 42
		empty_ops.setdefault('fnord', 27)
		assert len(empty_ops.operations) == 1
		assert empty_ops.operations['fnord'] == 42