Hi,
2 ways come to mind
a) using print
b) using the == operator for the assertion and a assert_repr_compare hook
see
http://pytest.org/latest/assert.html#defining-your-own-assertion-comparison
-- Ronny
On Sunday, March 2, 2014 11:36:56 PM CEST, Jurko Gospodnetić wrote:
Hi all.
I was wondering if anyone can tell me the cleanest way to
make assertions in a specific part of my test code (e.g. a
specific test class or module) report some extra information on
test failure?
I can add a regular assertion description string, and that
displays the extra information but it also avoids regular pytest
test failure result reporting which I would like to keep.
I can also print out the extra information directly to
stdout/stderr - but that can be hard to read, especially if the
test prints out other data as well.
Usage scenario:
---------------
Imagine a class for comparing two XML structures. That class
maintains some context information that would be useful to print
out when an XML mismatch is detected. For example, if it detects
two nodes with different namespaces, you want it to:
- report exactly which nodes these are and not just 'there
exist two nodes with mismatched namespaces'
- make this information available without the developer
having to drop into the debugger
If possible, it would also be a great plus if this extra
content could be integrated into the regular 'red' assertion
failure information.
Best regards,
Jurko Gospodnetić
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