How to mock the library function in cpp program?

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Hi, Actually am trying to mock the library function like(send, recv, connect, accept), but i do not how to mock to it. normally, for user-defined class member function using function overriding concept i will mock it. but for global function how to mock it?...

What I have tried:

Mocking related query need to know

Posted 13-Feb-22 17:14pm

maathesh

Updated 13-Feb-22 21:47pm

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CPallini · Answer 1 · 2022-02-13T20:27:00

Solution 1

Can't you simply include your header (containing the mocking functions) instead of sys/socket.h ?

Posted 13-Feb-22 20:27pm

CPallini

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KarstenK 14-Feb-22 2:56am

and best is to use #define to include the mocking instead of the socket header.

Richard MacCutchan · Answer 2 · 2022-02-13T21:47:00

Solution 2

As CPallini say, just add your own header. Or you can just create a module in your project that contains the functions you want. Something like:

C++

ssize_t send(int sockfd, const void *buf, size_t len, int flags)
{
    // Add whatever local code you need here
}

Posted 13-Feb-22 21:47pm

Richard MacCutchan