[test] Unit Tests for Kernel Calls

[ppenna]

Description

The following unit tests for assessing the Kernel Calls should be introduced.

API Tests

• [ ] Sanity Check Execution Context After a Kernel Call

Fault Injection Tests

• [ ] Issue an Invalid Kernel Call
• [ ] Issue a Bad Kernel Call
• [ ] Issue a Kernel Call from a Bad Execution Context
• [ ] Issue a Kernel Call from an Invalid Execution Context