I love doctest -- the way it combines documentation with verification
seems elegant and useful, and most of the time it's simple and easy to
use.
But I've run into a bit of a snag trying to test a method that returns
a dictionary, because (of course) the order in which the dictionary
pairs are printed may not match what I wrote as the expected result.
For example, my doctest string is:
"""
>>> t = Template("The $object in $location falls mainly on the
$subloc.")
>>> t.match( "The rain in Spain falls mainly on the train." )
{'object': 'rain', 'location': 'Spain', 'subloc': 'train'}
"""
But when I run it, I get:
Failed example:
t.match( "The rain in Spain falls mainly on the train." )
Expected:
{'object': 'rain', 'location': 'Spain', 'subloc': 'train'}
Got:
{'subloc': 'train', 'object': 'rain', 'location': 'Spain'}
Now, you and I can see that the obtained results really do match the
expected results, considered as a dictionary rather than as a string.
But doctest doesn't see it that way.
What's the standard solution for this? Should I iterate over the
sorted keys and print those out instead? Is there some built-in
method somewhere that will print a dictionary in a reliable order?
Does doctest have some special way to tell it to consider the result
as a dictionary rather than a string? Or something else?
Thanks,
- Joe
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