..............E.

======================================================================

ERROR: testSum (tester.ProblemTests)

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Traceback (most recent call last):

  File ".../test.py", line 105, in testSum

    self.assertRaises(ValueError, Interval.__add__, Interval(7, 99), Interval(101, 200))

  File "unittest.py", line 320, in failUnlessRaises

    callableObj(*args, **kwargs)

  File ".../fn43569/2007-04-04 01:52:35/user.py", line 208, in __add__

    raise ValueError

ValueError: <__builtin__.ValueError instance at 0xb7d27f6c>



----------------------------------------------------------------------

Ran 16 tests in 0.009s



FAILED (errors=1)