Disadvantages Top Down Integration Testing
- It requires a lot of stubs and mock objects.
- Representation of test cases in stubs can be not easy and might be difficult before Input-Output functions are added.
- Low-level utilities that are important are also not tested well.
Steps in Top Down Integration Testing
Top-down testing is a type of incremental integration testing approach in which testing is done by integrating or joining two or more modules by moving down from top to bottom through the control flow of the architecture structure. In these, high-level modules are tested first, and then low-level modules are tested. Then, finally, integration is done to ensure that the system is working properly. Stubs and drivers are used to carry out this project. This technique is used to increase or stimulate the behavior of Modules that are not integrated into a lower level. Processing:
The following are the steps that need to be followed during processing :
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