$ python machine_spec.py
test_MachineShouldInitiallyHaveStateOfInitial (__main__.machine_spec) ... ERROR

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ERROR: test_MachineShouldInitiallyHaveStateOfInitial (__main__.machine_spec)
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Traceback (most recent call last):
  File "machine_spec.py", line 14, in test_MachineShouldInitiallyHaveStateOfInitial
    self.shouldEqual( self.machine.state, 'Initial' )
AttributeError: Machine instance has no attribute 'state'

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Ran 1 test in 0.003s

FAILED (errors=1)
$