[Zope3-dev] help with doctests

[Marius Gedminas]

On Fri, Jul 20, 2007 at 09:48:52AM +0200, Adam Groszer wrote:
> Hello,
> 
> In z.a.apidoc.browser.README.txt I can write
> """
>   >>> browser.open('http://localhost/++apidoc++/non-existent/')
>   Traceback (most recent call last):
>   ...
>   httperror_seek_wrapper: HTTP Error 404: Not Found
> """
> (test passes)
> 
> but I can't write
> """
>   >>> browser.open('http://localhost/++apidoc++/non-existent/')
>   Traceback (most recent call last):
>   ...
>   ...HTTP Error 404: Not Found
> """
> it throws:
> """
> Failed example:
>     browser.open('http://localhost/++apidoc++/non-existent/')
> Exception raised:
>     Traceback (most recent call last):
>       File "U:\zope\svn_zope34\src\zope\testing\doctest.py", line 1348, in __run
> 
>         compileflags, 1) in test.globs
>       File "<doctest README.txt[3]>", line 1, in ?
>         browser.open('http://localhost/++apidoc++/non-existent/')
>       File "U:\zope\svn_zope34\src\zope\testbrowser\browser.py", line 224, in open
>         self.mech_browser.open(url, data)
>       File "U:\zope\svn_zope34\src\mechanize\_mechanize.py", line 203, in open
>         return self._mech_open(url, data)
>       File "U:\zope\svn_zope34\src\mechanize\_mechanize.py", line 254, in _mech_open
>         raise response
>     httperror_seek_wrapper: HTTP Error 404: Not Found
> """
> 
> what do I miss?

doctests have special rules for exceptions that are different from the
rules of normal output matching.

If a statement raises an exception, the output part must be of the form

  Traceback (most recent call last):
    ...
  <exception type>: <exception value>

You can use ellipsis in the exception value part, IIRC.

Marius Gedminas
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