How do I mock memory allocation failures ?

Posted by Andrei Ciobanu on Stack Overflow See other posts from Stack Overflow or by Andrei Ciobanu
Published on 2010-04-07T11:51:39Z Indexed on 2010/04/07 12:03 UTC
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I want to extensively test some pieces of C code for memory leaks.

On my machine I have 4 Gb of RAM, so it's very unlikely for a dynamic memory allocation to fail. Still I want to see the comportment of the code if memory allocation fails, and see if the recover mechanism is "strong" enough.

What do you suggest ? How do I emulate an environment with lower memory specs ? How do i mock my tests ?

EDIT: I want my tests to be code independent. I only have "access" to return values for different functions in the library I am testing. I am not supposed to write "test logic" inside the code I am testing.

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