How to mock a function that operates on the value passed in by reference/pointer
lowkin18 opened this issue · 3 comments
lowkin18 commented
I am unclear on how I can mock a function that takes a pointer and passes back through this pointer.
for example
void get_current(float *current)
{
*current = 10
}
how do I create the mock expectation for this?
ALLOW_CALL(mockObj, get_current(_))??
I need to be able to set the returned current to some values for passing/failing conditions
Any help would be appreciated.
rollbear commented
Assign to it using the positional parameters, for example in a .SIDE_EFFECT()
. _1
will be the pointer. *_1
is whatever it points to.
Example: https://godbolt.org/z/WGcqva164
rollbear commented
I wouldn't call this frequent, but you're not the first to ask, so I've added an entry to the FAQ.
lowkin18 commented
Thank you very much!