Chris Fonnesbeck wrote:
> I have built the following unit test, observing the examples laid out
> in the python docs:
>
> class testMCMC(unittest.TestCase):
>
> def setUp(self):
>
> # Create an instance of the sampler
> self.sampler = DisasterSampler()
>
> def testCoalMiningDisasters(self):
> """Run coal mining disasters example sampler"""
>
> print 'Running coal mining disasters test case ...'
>
> # Specify the nimber of iterations to execute
> iterations = 10000
> thin = 2
> burn = 5000
> chains = 2
>
> # Run MCMC simulation
> for i in range(chains):
>
> self.failUnless(self.sampler.sample(iterations, burn=burn,
> thin=thin, plot=True))
>
> # Run convergence diagnostics
> self.sampler.convergence()
>
> # Plot autocorrelation
> self.sampler.autocorrelation()
>
> # Goodness of fit
> self.failIf(self.sampler.goodness(iterations/10)['overall'] < 0.05)
>
>
> def test():
> # Run unit tests
> unittest.main()
>
> However, when I run test() from the python shell, it dies:
>
> In [2]: test()
>
> ----------------------------------------------------------------------
> Ran 0 tests in 0.000s
>
> OK
> ---------------------------------------------------------------------------
> exceptions.SystemExit Traceback (most
> recent call last)
>
> /Users/chris/<ipython console>
>
> /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/PyMC/MCMC.py
> in test()
> 2986
> 2987 def test():
> 2988 # Run unit tests
> -> 2989 unittest.main()
> global unittest.main = <class 'unittest.TestProgram'>
> 2990
>
> /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/unittest.py
> in __init__(self=<unittest.TestProgram object at 0x10e6c10>,
> module='__main__', defaultTest=None, argv=['/usr/local/bin/ipython'],
> testRunner=None, testLoader=<unittest.TestLoader object at 0x5feb30>)
> 757 self.progName = os.path.basename(argv[0])
> 758 self.parseArgs(argv)
> --> 759 self.runTests()
> self.runTests = <bound method TestProgram.runTests of
> <unittest.TestProgram object at 0x10e6c10>>
> 760
> 761 def usageExit(self, msg=None):
>
> /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/unittest.py
> in runTests(self=<unittest.TestProgram object at 0x10e6c10>)
> 795 self.testRunner = TextTestRunner(verbosity=self.verbosity)
> 796 result = self.testRunner.run(self.test)
> --> 797 sys.exit(not result.wasSuccessful())
> global sys.exit = <built-in function exit>
> result.wasSuccessful = <bound method
> _TextTestResult.wasSuccessful of <unittest._TextTestResult run=0
> errors=0 failures=0>>
> 798
> 799 main = TestProgram
>
> SystemExit: False
> Type exit or quit to exit IPython (%Exit or %Quit do so unconditionally).
>
> In [3]: from PyMC import testMCMC
>
> In [4]: foo = testMCMC()
> ---------------------------------------------------------------------------
> exceptions.ValueError Traceback (most
> recent call last)
>
> /Users/chris/<ipython console>
>
> /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/unittest.py
> in __init__(self=<PyMC.MCMC.testMCMC testMethod=runTest>,
> methodName='runTest')
> 206 self.__testMethodDoc = testMethod.__doc__
> 207 except AttributeError:
> --> 208 raise ValueError, "no such test method in %s: %s" % \
> global ValueError = undefined
> self.__class__ = <class 'PyMC.MCMC.testMCMC'>
> methodName = 'runTest'
> 209 (self.__class__, methodName)
> 210
>
> ValueError: no such test method in <class 'PyMC.MCMC.testMCMC'>: runTest
>
>
> I have no idea why this is happening. My TestCase class begins with
> "test", the method begins with "test", yet no tests are seen. Also, I
> do not get the runTest ValueError. I assumed that you get this method
> for free win TestCase. The examples certainly do not have this method,
> so I am not sure what the problem is.
>
> Thanks for any help,
Well, it would make a lot more sense to set the test up to be run as a
main program with
if __name__ == "__main__":
test()
at the end, then run it. When I did so with your code (after adding an
import of the unittest module) I got
C:\Steve\Projects\Python>test47.py
E
======================================================================
ERROR: Run coal mining disasters example sampler
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\Steve\Projects\Python\test47.py", line 9, in setUp
self.sampler = DisasterSampler()
NameError: global name 'DisasterSampler' is not defined
----------------------------------------------------------------------
Ran 1 test in 0.000s
FAILED (errors=1)
This just shows me that more code is missing. Hope this helps.
regards
Steve
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