Boost unit testing main function?

Question

How do I define my own main() function when testing with boost?

Boost is using it\'s own main function, but I\'m using a custom memory manager and it ne

Answer 1

I do not believe you actually need your own main. I think you are much better off with global fixture:

struct AllocatorSetup {
    AllocatorSetup()   { /* setup your allocator here */ }
    ~AllocatorSetup()  { /* shutdown your allocator/check memory leaks here */ }
};

BOOST_GLOBAL_FIXTURE( AllocatorSetup );

Answer 2

You have to define

BOOST_TEST_NO_MAIN

before the boost includes.

BOOST_TEST_MAIN

is the default. http://www.boost.org/doc/libs/1_36_0/libs/test/doc/html/utf/compilation.html

Answer 3

You can define a static object and his constructor will execute before main:

class Alloc_Setup {
   Alloc_Setup() {
       // Your init code
   }
   ~Alloc_Setup() {
       // Your cleanup
   }
};
Alloc_Setup setup;
int main() {} // (generated by boost)

Answer 4

Memory can be allocated before main:

static int* x = new int(1);
int main() { return *x; }

And you could make your memory manager a global variable as well,
but you can't enforce a specific order of global variables initialization. (in standard C++ at least)

In Windows you could put your memory manager into a DLL, at it will be initialized before application entry point will be called, but still, something other may allocate a memory before - another DLL, or CRT of your DLL.