doctests/unittest problem with exception

[Paul]

Hello. I converted doctests into DocTestSuite() to use with unittest. And try it under Python 3.

And, sure, I get errors with unmatched exceptions details (mismatched name of exception class: a.b.c.MyError instead of MyError). So, I have 2 questions:

1) how to turn on option IGNORE_EXCEPTION_DETAIL for all doctests in DocStestSuite (like 'optionflags' argument in doctest.testmod())

2) Is a way to ignore all 'package path' of exception but not message? Something like:
---cut---
Traceback (most recent call last):
...
...MyError: 'details are not ignored!'
---cut---
see, ellipsis-prefix in MyError

 

[Steven D'Aprano]

Hello. I converted doctests into DocTestSuite() to use with unittest. And
try it under Python 3.

And, sure, I get errors with unmatched exceptions details (mismatched name
of exception class: a.b.c.MyError instead of MyError). So, I have 2
questions:

1) how to turn on option IGNORE_EXCEPTION_DETAIL for all doctests in
DocStestSuite (like 'optionflags' argument in doctest.testmod())

Have you tried reading the Fine Manual? If you don't have access to the
Python documentation

http://docs.python.org/3/library/doctest.html

you can get interactive help at the interpreter. Launch the Python
interactive interpreter, and then give these two commands:

import doctest
help(doctest.DocTestSuite)


In particular, note that DocTestSuite takes a keyword argument:

optionflags
A set of doctest option flags expressed as an integer.


So try passing optionFlags=doctest.IGNORE_EXCEPTION_DETAIL to the
DocTestSuite.

2) Is a way to ignore all 'package path' of exception but not message?
Something like:
---cut---
Traceback (most recent call last):
...
...MyError: 'details are not ignored!'
---cut---
see, ellipsis-prefix in MyError

Have you tried it to see? Add this comment to your docstring, following the
line which causes an exception:
Traceback (most recent call last):
...
....MyError: 'details are not ignored!'


Does that do what you expect?