class AppError(Exception): pass
class MissingInputError(AppError):
em = {1101: "Date input is missing. Please verify.", \
1102: "Key input is missing. Please verify.", \
1103: "Stn input is missing. Please verify."}
# and so on ...
...
def validate(self):
""" Method of Input class to validate input and save it """
params = self.__params
if 'dt' in params:
self.__validateKey(escape(params['dt'][0]))
else:
raise MissingInputError(1101)
if 'key' in params:
self.__validateService(escape(params['key'][0]))
else:
raise MissingInputError(1102)
# and so on ...
Unit testing the above, I know that the following tests in the MissingInput test class:
def testMissingKeyInput(self):
""" Missing key should raise error """
ip = controller.Input(MissingInput.missInputKey)
self.assertRaises(errors.MissingInputError, ip.validate)
def testMissingDtInput(self):
""" Missing dt should raise error """
ip = controller.Input(MissingInput.missInputDt)
self.assertRaises(errors.MissingInputError, ip.validate)
# and so on ...
will correctly detect if a MissingInputError exception was raised.
Is there any way to determine in the test what error number was passed to the exception while calling it, so that I can be sure that the error is being raised for that particular missing input, and not for any other missing inputs?
(P.S: Python 2.4.3).
Tip: If you are stuck with 2.4 to 2.6, use the unittest2 library. In Python 2.7 and 3.2 a whole bunch of improvements to unittest will arrive. unittest2 is a backport of the new features (and tests) to work with Python 2.4, 2.5 & 2.6.