[Koha-bugs] [Bug 28615] Add a simple way to mock Koha::Logger

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=28615

--- Comment #22 from Tomás Cohen Arazi <tomascohen at gmail.com> ---
Created attachment 122480
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=122480&action=edit
Bug 28615: Add a simple way to mock Koha::Logger

This patch introduces a new way to mock and test Koha::Logger.

As the POD says, it is used by calling

    my $logger = t::lib::Mocks::Logger->new();

It then provides convenient methods for testing the logging itself per
log-level:

* warn_is
* warn_like
* debug_is
* debug_like
...

Methods for counting the logging activity and also for clearing the mock
buffer are provided as well. This is covered in the POD and also on the
follow-up, that makes use of this to fix Auth_with_shibboleth.t

To test:

1. Run:
   $ kshell
  k$ prove t/Auth_with_shibboleth.t
=> FAIL: Tests fail! It expects some warns but they are not returned by
the lib
2. Apply this patches
3. Repeat 1
=> SUCCESS: Tests pass! The tests now use the new lib, and they
correctly find the logging Auth_with_shibboleth.pm does on function
calls.
4. Sign off :-D

Signed-off-by: Tomas Cohen Arazi <tomascohen at theke.io>

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