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This article is about what integration testing means in programming development. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Integration testing, also known as assembly testing or joint testing. On the basis of unit testing, all modules are assembled into subsystems or systems according to the design requirements (such as according to the structure diagram) for integration testing.

What is an integration test?

Practice shows that although some modules can work alone, they can not guarantee that the connection can also work normally. Some problems that cannot be reflected locally are likely to be exposed in the overall situation.

Integration testing (also known as assembly testing, joint testing) is a logical extension of unit testing. Its simplest form is to combine two tested units into a single component and test the interface between them. In this sense, component refers to the integrated aggregation of multiple units. In a real-world scenario, many units are combined into components, which in turn are aggregated into a larger part of the program. The method is to combine the test fragments and eventually expand into a process to test the module with the modules of other groups. Finally, all the modules that make up the process are tested together. In addition, if your program consists of multiple processes, you should test them in pairs instead of testing all processes at the same time.

Problems with integration testing

Problems with integration testing and testing combinational units. By using a test plan that requires each unit to be tested before combining units and to ensure the viability of each unit, you can know that any errors found when combining units are likely to be related to the interface between units. This approach reduces the number of situations that can occur to a simpler analysis level. An effective integration test helps to solve the problems of compatibility and maneuverability of related software with other systems.

Integration testing is on the basis of unit testing, the activity of testing whether each part of the work meets or achieves the corresponding technical specifications and requirements in the process of assembling all software units into modules, subsystems or systems according to the requirements of the summary design specification. That is, before the integration test, the unit test should have been completed, and the object used in the integration test should be the software unit that has been unit tested. This is important because without unit testing, the effectiveness of integration testing will be greatly affected and the cost of error correction of software unit code will be greatly increased.

Integration testing is a logical extension of unit testing. In real scenarios, integration refers to the aggregation of multiple units, many units are combined into modules, and these modules are aggregated into a larger part of the program, such as subsystems or systems. The method of integration testing is to test whether the combination of software units can work properly and whether it can be integrated with other groups of modules. Finally, it is necessary to test whether all the module combinations that make up the system can work properly. The main standard of integration testing is the Software profile Design Specification, and any program module behavior that does not conform to this specification should be recorded and reported.

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