Mocker++
C++ Mock object with automatic generator
...What you need is to run the generator and full featured mock class is there for your unit test.
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How to use:
You need Ruby. Obtain it if you don't have it yet.
Go to
https://sourceforge.net/p/mockerplusplus/code/ci/master/tree/
Download everything except copy-tools.sh (which is for my internal use)
(You can also skip unittest/ if you are not interested)
doc/ folder contains a documentation that explains Mocker++
Code samples (unit test codes) are found in 'unittest/MockerppTest'