[twill] I wish that code 200 would call show on failure

Titus Brown titus at caltech.edu
Thu Jan 31 11:03:31 PST 2008

On Thu, Jan 31, 2008 at 06:56:44PM +0000, Matthew Wilson wrote:
-> I have some twill tests like this:
->     go /somepage
->     show
->     code 200
->     find blah
-> I put the show in there so that in the event that the page returned a
-> 500, I get to see the debugging information.
-> However, if the code 200 test passes, but the find blah test fails, I
-> still see all that HTML, which isn't helpful.
-> How can I only execute show when code 200 fails?

Hey Matt... you can't :(.  There aren't any conditionals in
twill-script, and there's no special command for doing this.

I run all of my twill tests from within a unit test framework, which
hides all output unless there's an error; that's one way to go.

Another thing you could try is to write an extension module; it would
go something like this:

--- my_ext.py
from twill.commands import *

def show_if_not_ok():


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