[ 
https://issues.apache.org/jira/browse/DISPATCH-1783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17380499#comment-17380499
 ] 

ASF GitHub Bot commented on DISPATCH-1783:
------------------------------------------

jiridanek commented on pull request #1296:
URL: https://github.com/apache/qpid-dispatch/pull/1296#issuecomment-879794387


   First pass/fail check that would make sense to me: ensure that the ration 
between the direct case (without router) and the one with router is not too 
big. (The multiple tests with the router are pretty much the same, the tests 
only differ in implementation details)
   
   ```
   76: 
--------------------------------------------------------------------------------
   76: Benchmark                                      Time             CPU   
Iterations
   76: 
--------------------------------------------------------------------------------
   76: BM_TCPEchoServerLatencyWithoutQDR          0.037 ms        0.019 ms      
  35901
   76: BM_TCPEchoServerLatency1QDRThread          0.339 ms        0.032 ms      
  10000
   76: BM_TCPEchoServerLatency1QDRThread2         0.341 ms        0.033 ms      
  10000
   76: BM_TCPEchoServerLatency1QDRSubprocess      0.341 ms        0.034 ms      
  10000
   ```


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> Add ability to use test doubles (mocks, fakes, ...) in C tests
> --------------------------------------------------------------
>
>                 Key: DISPATCH-1783
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-1783
>             Project: Qpid Dispatch
>          Issue Type: Improvement
>          Components: Tests
>    Affects Versions: 1.14.0
>            Reporter: Jiri Daněk
>            Priority: Major
>
> During the work on https://github.com/apache/qpid-dispatch/pull/684, there 
> was at one point a version of the PR, which tested what happens if 
> {{vsnprintf}} called from {{safe_snprinf}} returns {{-1}}.
> This was done by replacing the {{vsnprintf}} with a mock (technically it's 
> probably a stub, or maybe fake, but let's ignore the proper terminology).
> There are various possibilities how to approach mocking in C. They are less 
> nice than in more dynamic languages such as Java, or even C++ (where it's 
> possible to subclass things). Nevertheless, it can be useful technique, and 
> it should be explored.
> CC [~cans]



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