[Armin Rigo Tue, Jun 15, 2004 at 05:56:07PM +0100]
> Hi,
>
> Building on a suggestion by Jacob on how to safely convert old-style unittests
> "self.assertEquals(x,y)" into new-style utest "assert x == y": the difficulty
> is not to find the self.assertEquals() in the test sources, but to safely
> identify the comma between the two arguments, and not mistake it with some
> other comma that could appear in x or in y.
>
> There was talk about subtle string parsing, or about using Python's parser or
> compiler package, but actually it is much easier than that... Just try to
> split the text "x,y" between the parenthesis in two halves at every possible
> comma position, until both halves compile without raising SyntaxError :-)
Yes, that reminds me of my favourite "try-parsing" technique (used
in rlcompleter2 and elsewhere :-)
Actually you also need to check for multiline-parseability first. IIRC
we do have a quite a bit of multiline-asserts.
cheers,
holger
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