[jira] [Created] (DISPATCH-1783) Add ability to use test doubles (mocks, fakes, ...) in C tests

["Jiri Daněk (Jira)" <ji...@apache.org>]

Jiri Daněk created DISPATCH-1783:
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             Summary: 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
            Reporter: Jiri Daněk


During the work on https://github.com/apache/qpid-dispatch/pull/684, there was at one point a version which allowed to what happens if a {{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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