BIND 10 #1024: increase logging verbosity in unittests

[BIND 10 Development]

#1024: increase logging verbosity in unittests
-------------------------------------+-------------------------------------
                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:  task   |             Milestone:
                   Priority:  major  |  Sprint-20110712
                  Component:         |            Resolution:
  Unclassified                       |             Sensitive:  0
                   Keywords:         |           Sub-Project:  Core
            Defect Severity:  N/A    |  Estimated Difficulty:  0.0
Feature Depending on Ticket:         |           Total Hours:  0
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
-------------------------------------+-------------------------------------

Comment (by jinmei):

 Since this feature seemed to be a bit controversial, I'll describe
 some more rationale for that.

 There can be (and actually was as we saw in #1023) a bug in producing
 a debug logging message (or in general log messages at a lower
 severity that wouldn't be generated by default).  Unless we enable
 that level of logging we'll keep missing that type of regression.

 There was a suggestion that it would be better to have explicit tests
 on logging outputs.  I don't deny that, but it doesn't seem to be
 possible quickly and would be a kind of middle to long term
 enhancements.  On the other hand, it's more short term, IMO, to be
 able to detect regression in log outputs through our regular tests.
 If, in future, separate tests eliminate the need for relying on the
 side effect by increasing the log level, we can revert it.  But as a
 short term improvement I believe we should do it now.

 Another note: it would be better to do this ticket after #1071 if
 it gets completed quickly.  Then we can avoid having a period of
 making log output noisier.  But if #1071 is not completed, say, within
 one week, I suggest we start and complete this task regardless of the
 progress of #1071.

-- 
Ticket URL: <http://bind10.isc.org/ticket/1024#comment:3>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development