iMTest

IMTest is a kernel-mode test environment for the microkernel of the IBM i operating system. The test environment is a collection of tools and tests that are used to verify the correct operation of the microkernel. The primary purpose of IMTest is to identify and isolate potential problems in the microkernel code, allowing developers to fix issues before they reach the production environment.

IMTest operates by simulating the behavior of various hardware devices and system conditions, such as device failures and system resets. The test environment generates a wide range of test cases that cover both normal and abnormal system operation. By running these test cases, developers can confirm that the microkernel correctly handles different scenarios, including those that might cause errors or unexpected behavior.

The test results generated by IMTest provide detailed information about the test environment, test case execution, and any errors that may have occurred during testing. This information can be used by developers to refine and improve the microkernel code.

IMTest is considered an essential tool for IBM i development, particularly for the microkernel team. It provides a robust and comprehensive test environment that allows developers to thoroughly verify the correctness and reliability of the microkernel code. As a result, IMPtest plays a critical role in ensuring the stability and security of the IBM i operating system.

Research has shown that using IMTest in the development process can help identify and fix bugs earlier in the development lifecycle, reducing the likelihood of errors and unexpected behavior reaching the production environment. Overall, IMTest is an important tool for developing and maintaining the IBM i operating system.