[tor-bugs] #22217 [Metrics/metrics-lib]: Parse new padding-counts lines

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#22217: Parse new padding-counts lines
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 Reporter:  karsten              |          Owner:  karsten
     Type:  enhancement          |         Status:  needs_review
 Priority:  Medium               |      Milestone:  metrics-lib 1.7.0
Component:  Metrics/metrics-lib  |        Version:
 Severity:  Normal               |     Resolution:
 Keywords:                       |  Actual Points:
Parent ID:                       |         Points:
 Reviewer:                       |        Sponsor:
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Changes (by karsten):

 * status:  needs_revision => needs_review


Comment:

 Replying to [comment:4 iwakeh]:
 > Please find four commits in [https://gitweb.torproject.org/user/iwakeh
 /metrics-lib.git/?h=task-22217 my repo branch].

 Looks good.  Merged into mine together with a few whitespaces fixes and
 after prefixing instance method calls and references to instance variables
 with `this.` to be consistent with the other code.

 > Open topics I noticed in other parts of the code:
 > The empty key issue seems to also apply to comma separated key-value
 pairs and maybe others.  Similarly repeated keys.  New ticket?

 I included a fix and tests for empty keys.  I briefly pondered adding
 checks and tests for duplicate keys, but I'd rather want to postpone that
 discussion in order not to de-stabilize master this close to the release.
 Maybe we can combine that with a minor code cleanup where we're
 duplicating less of that parsing code.  Want to create that new ticket?

 > It would be good to add the check for the correct exception string also
 to other test methods in ExtraInfoDescriptorTest.  Another ticket?

 Yes, new ticket sounds good.  Mind creating one?

 If you like [https://gitweb.torproject.org/user/karsten/metrics-
 lib.git/log/?h=task-22217 these changes], I'll merge that branch into
 master and start preparing the release.  Thanks!

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22217#comment:6>
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