A code coverage tool tests a program under test that executes on a processor of an information handling system (IHS). The code coverage tool may apportion the program under test into code portions of interest that exhibit a user-specified granularity level. A user may request that the code coverage tool change the granularity level of the code portions of interest in real time. The code coverage tool conducts testing of the code portions of interest according to test criteria that the user may specify in real time. The code coverage tool may provide test results for each of the code portions of interest in real time. The code coverage tool may also provide a summary report after providing real time results for the code portions of interest. The user may specify that the code coverage tool generate real time test results in the form of sensory output, for example auditory output or visual output, for each of the code portions of interest. The code coverage tool may alter the type of sensory output in real time at the request of the user.