Why Integration Testing Is Required?

Integration Testing

A multifunctional software product is a complex of components and models that need to interact with each other without violating the application logic.

A multifunctional software product is a complex of components and models that need to interact with each other without violating the application logic. During integration testing, it is checked to what extent the developers managed to follow the logic of the software product and combine disparate modules into a coherent system. To check the interaction of components, various integration testing services are used, which help to do this work more quickly and efficiently.

Differences From Unit Testing

Unit testing of application or web service components is basic, while integration testing is sequential. In the first case, separate functional parts of the code are checked. 

Integration testing does not require access to the code, it is carried out by the black box method, when interaction with modules occurs through the user interface. The process detects errors and vulnerabilities that occur during the interaction of units, even if the functionality of each element individually is not broken.

Those. These tests do not exclude, but rather complement each other. First, unit testing is carried out, then integration testing, and the result is a product in the logic and functionality of which you can be completely sure.

Why Do You Need Integration Testing?

Not only can the interaction of different code arrays be unpredictable, but also various changes can be made to the project along the way. This is especially true for Agile projects, where the requirements for the finished product can be very different from the initial requirements. 

The reasons for these changes can be different:

  • Change in the vector of product development and adjustments in the marketing strategy;
  • Gaps in the initial list of requirements that led to a violation of the logic of the finished software product;
  • Design defects;
  • Test case failures;
  • Inaccuracies in product life cycle calculations;
  • Discovered new tools, technologies or ideas that can make the project better;
  • Changes in the technical parameters of the final product. Even if only one function is changed or added, it also consists of different blocks interacting with each other.

Initially, the logic of the application or web service is thought out to the smallest detail. But the more options and functions are added to the product, the more blocks appear in it and more complex interaction schemes are built. It is impossible to always predict 100% that all the logic that was originally compiled will be observed. But you can verify this during testing. 

Depending on the goals, integration testing can be:

  • Hybrid
  • Incremental
  • Descending
  • Upside down
  • Big bang

All presented types of testing can be ordered from zapple tech. Make sure the architecture matches the module components and product logic. So you can offer your children such software solutions in which you will be 100% sure.