It is a testing method where a combination of different units and their interactions are checked. The integrity of the whole application is validated. There may be multiple software modules that may have been coded by different programmers in a typical software development project. Integration testing makes sure that the defects are exposed in the interaction that happens between these software modules when they are integrated.
Integration testing example:
For example, there is a fitness app that focuses on a specific set of training and best nutrition plans.
Some of the core features of this application are:
- Signing up and logging to the system
- Viewing the available training and nutrition plans
- A personalized plan is selected
- The progress is tracked.
The team develops authorization logic and user registration at the initial stages of product testing. These are pages that contain forms through which login and password can be entered or another way is signing in via using the social media accounts.
After the verification process has been passed, the user should be redirected to the page that calls for entering certain personal parameters for the purpose of customization. There will be an error in the system if the flow appears to be different. Integration tests are run in order to find and fix this bug.
Following are a few key tips to perform integration testing effectively:
- The test cases and test data should be properly outlined in the integration testing strategy. All the members of the QA team should be able to easily understand the information
- Almost all the interface features should be covered by test cases. A proper examination should take place because the point of user interaction is the interface
- The test data should not be selected on the go. The mock tests should be prepared before proceeding to the actual tests
- All the modules should be properly checked by the development team
- Automation can be incorporated, which can in turn save time so that more accurate results can be delivered.
