umock_c should have a way to inspect calls made.

Assume there's 2 modules, A and B. A calls B's B_do_something_async providing some callback and context.

In real world, B would call back.

In tests, there's no (easy) way to make the callback.

umock_c needs to improve on that.

Best Regards,
Andrei Porumb

Start by reading the umock_c API and tracing how a call such as B_do_something_async is represented in tests. Define the expected inspection and callback behavior for the supplied callback and context, then add focused tests showing that a test can retrieve the call and trigger the callback.

Written by the indexing model from the issue text.