old_contents: """Test xoinvader.level module."""
  
  from xoinvader.level import Level
  
  
  # pylint: disable=invalid-name,protected-access,missing-docstring
  def test_wave():
      e = Level()
  
      # pylint: disable=too-few-public-methods
      class MockObject(object):
          def __init__(self):
              self.value = 0
  
          def add(self):
              self.value += 10
  
      a = MockObject()
      b = MockObject()
  
      e.add_event(10, a.add)
      e.add_event(20, b.add)
  
      e.speed = 10
      e.update()
      assert a.value == 0
      assert b.value == 0
      e.start()
      e.update()
      assert a.value == 10
      assert b.value == 0
      e.update()
      assert a.value == 10
      assert b.value == 10
  
      assert not e.running
  
new_contents: """Test xoinvader.level module."""
  
  from xoinvader.level import Level
  
  
  # pylint: disable=invalid-name,protected-access,missing-docstring
  def test_level():
      e = Level()
  
      # pylint: disable=too-few-public-methods
      class MockObject(object):
          def __init__(self):
              self.value = 0
  
          def add(self):
              self.value += 10
  
      a = MockObject()
      b = MockObject()
  
      e.add_event(10, a.add)
      e.add_event(20, b.add)
  
      e.speed = 10
      assert e.speed == 10
      e.update()
      assert a.value == 0
      assert b.value == 0
      e.start()
      e.update()
      assert a.value == 10
      assert b.value == 0
      e.update()
      assert a.value == 10
      assert b.value == 10
  
      assert not e.running
  
subject: Fix test name, cover speed getter