Steps for Module Testing

Module testing is a type of software testing where individual units/components of the software are tested in isolation. This is to ensure that these units/components work as expected. 

There are different ways to carry out module testing:

1. One way is to use stubs and drivers. Stubs are used to replace the functionality of modules that are not yet implemented. Drivers are used to providing an interface to test the modules.
2. Another way to carry out module testing is to use mock objects. Mock objects are simulated versions of modules that mimic the behavior of the real modules. This allows you to test the modules without having to depend on other parts of the system working correctly. 

When carrying out module testing, it is important to keep in mind that the goal is not just to find bugs but also to verify that the module meets its functional requirements. Therefore, it is important to have a good test plan and test cases that cover all the requirements of the module.

Below are the steps to carry out module testing:

1. Design test cases: designing test cases in module testing is an important step, here tester must consider the specification of the module and the module’s source code. The module’s logic must be analyzed carefully using the white box testing methods and apply black box testing methods to the module specification to supplement the test cases.
2. Combine modules for testing: Next step after designing the test cases is to combine the modules for testing. Here, 2 approaches can be used. The tester can either use a non-incremental approach or an incremental approach.
   • Incremental approach: In this approach, each module is tested first and then incremented to the tested collection. In this stepwise retesting is done. 
   • Non-incremental approach: In this approach, all modules are tested independently. First, all modules are combined and then the whole program is tested. 
3. Capture results: The driver is required to supply the test data, monitor the execution, and capture the results.
4. Report results: Recorded results are reported and carefully analyzed to determine the next step to be taken to resolve the identified errors.

Module testing is a type of software testing where individual units or components of the software are tested. The purpose of module testing is to isolate a section of code and verify its correctness. Module testing is usually performed by the development team during the early stages of software development. However, it can also be done by independent testers as part of regression testing. There are various methods of module testing, but the most common one is black-box testing. In black-box testing, the test cases are designed based on the functionality of the code, without taking into consideration its internal structure. Other methods include white-box testing (which looks at the internal structure), grey-box testing (which combines both black-box and white-box testing), and glass-box testing (which tests all possible inputs and outputs). No matter which method you choose, module testing is an important part of ensuring the quality of your software. In this blog post, we will take a closer look at module testing and how it can benefit your software development process.

The following topics will be discussed here:

1. What is Module Testing?
2. Objectives of Module Testing
3. Inputs to Module Testing
4. Why Module Testing is Important?
5. Steps for Module Testing
6. Who does Module Testing?
7. When Module Testing is done?
8. Module Testing Best Practices
9. Module Testing Test Strategy
10. What are Stubs and Drivers?
11. Module Testing vs Integration Testing
12. Module Testing vs Unit Testing
13. Module Testing Example
14. Module Testing Tools
15. Tips for Effective Module Testing

Let’s start discussing each of these topics in detail.