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Hi James,

Glen here, I attended your TDD training course in Eindhoven last year.  I just have a query regarding testing static callback functions.  My apologies if this is an incorrect form to contact you by.

I am currently applying TDD to a new project which started this year.  Our software is designed around timer callback functions.  The class I am currently developing passes the address of a static callback function to the timer, then programs the timer.  When the timer interrupts, the callback function is called.

I have currently mocked out the timer.  This is working fine.  Where I am stuck is how to test the static callback function.  
1) Since I am mocking out the timer, the callback wont occur.  
2) Since the callback is static in the class under test, I cannot call it from my test file.  Also the static callback function calls further static functions within the class under test.
3) I cannot stub out the callback with CMock because I cannot reference the static function in my test file.

Any help with this problem would be much appreciated.  I am currently using Unity and CMock tools with IAR Embedded Workbench.  I am not developing on hardware.

If you require more information please let me know

Thanks James.

Regards
Glen

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