assert reference page from cplusplus.com CHALLENGE ACTIVITY 6.5.1: Unit testing. Add two more statements to main() to test inputs 3 and -1. Use print statements similar to the existing one (don't use assert). #include // Function returns origNum cubed int CubeNum(int origNum) { return origNum * origNum * origNum; } int main(void) { printf("Testing started "); printf("2: Expecting 8, got: %d ", CubeNum(2)); /* Your solution goes here */ printf("Testing completed "); return 0; }