{"id":5113,"date":"2021-11-29T21:23:48","date_gmt":"2021-11-29T21:23:48","guid":{"rendered":"https:\/\/www.softwaretestinghelp.com\/?p=5113"},"modified":"2025-05-09T10:50:29","modified_gmt":"2025-05-09T10:50:29","slug":"what-is-integration-testing","status":"publish","type":"post","link":"https:\/\/www.softwaretestinghelp.com\/what-is-integration-testing\/","title":{"rendered":"What is Integration Testing? Integration Test Example"},"content":{"rendered":"\n

This tutorial is all about integration testing. We have explained the concept with the help of an example for better understanding. Let’s get started. <\/strong><\/p>\n\n\n\n

Integration testing is done to test the modules\/components when integrated to verify that they are working as expected, i.e. to test the modules that work fine individually and do not have issues when integrated.<\/p>\n\n\n\n

When testing large applications using the black box testing technique, it involves the combination of several modules that are tightly coupled with each other. We can apply the Integration testing technique concepts to test these scenarios.  <\/em><\/p>\n\n\n\n

List of tutorials covered in this series:<\/mark><\/strong><\/span><\/p>\n\n\n\n

Tutorial #1: <\/mark><\/strong><\/span>What is Integration Testing?<\/a> (This Tutorial)<\/span><\/span>
<\/mark>Tutorial #2:<\/mark><\/strong><\/span> What is Incremental Testing<\/a>
Tutorial #3:<\/mark><\/strong><\/span> What is Component Testing<\/a>
Tutorial #4:<\/strong> <\/mark><\/span>Continuous Integration<\/a>
Tutorial #5:<\/strong> <\/mark><\/span>Difference Between Unit Testing and Integration <\/a>
Tutorial #6:<\/mark><\/strong><\/span> <\/mark>Top 10 Integration Testing Tools<\/a><\/p>\n\n\n \n \n \n\n\n

What is Integration Testing<\/h2>\n\n\n\n
\"Integration<\/figure>\n\n\n\n

The meaning of the term, ‘Integration testing’ is quite simple – Integrate\/combine the unit-tested module one by one and test the behavior as a combined unit.<\/p>\n\n\n\n

The main function or goal of this testing is to test the interfaces between the units\/modules.<\/p>\n\n\n\n

We normally do Integration testing after \u201cUnit testing\u201d. Once all the individual units are created and tested, we combine those \u201cUnit Tested\u201d modules and start doing the integrated testing.<\/p>\n\n\n\n

The main function or goal of this testing is to test the interfaces between the units\/modules.<\/p>\n\n\n\n

The individual modules are first tested in isolation. Once the modules are unit tested, they are integrated one by one, until all the modules are integrated, to check the combinational behavior, and to validate whether the requirements have been implemented correctly.<\/p>\n\n\n\n

Here, we should understand that Integration testing does not happen at the end of the cycle, rather it is conducted simultaneously with the development. So most of the time, all the modules are available for testing, and the challenge is to test something that does not exist!<\/p>\n\n\n\n

Why Integration Test<\/h3>\n\n\n\n

Integration testing can be challenging and demands development and logical expertise. What is the reason for incorporating this testing into our overall testing approach?<\/p>\n\n\n\n

Here are some reasons:<\/strong><\/p>\n\n\n\n

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  1. In the real world, when applications are developed, it is broken down into several smaller modules and individual developers are assigned 1 module. The logic implemented by one developer differs from another developer, so it becomes important to check whether the logic implemented by a developer is as per the expectations and renders the correct value following the prescribed standards.<\/li>\n\n\n\n
  2. Many a time, the face or the structure of data changes when it travels from one module to another. Some values are appended or removed, which causes issues in the later modules.<\/li>\n\n\n\n
  3. Modules also interact with a few third-party tools or APIs, which also need to be tested to ensure that the data accepted by that API \/ tool is correct and that the response generated is also as expected.<\/li>\n\n\n\n
  4. Frequent requirement change is a very common problem in testing. Many a time, the developer deploys the changes in unit testing. Integration testing becomes important at that time.<\/li>\n<\/ol>\n\n\n\n

    Advantages<\/strong><\/p>\n\n\n\n

    This testing has several advantages, and a few of them are listed below.<\/mark><\/span><\/strong><\/p>\n\n\n\n