Written By :Appsierra

Tue May 07 2024

5 min read

Integration Testing with React | How to Do It

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Integration Testing with React

Integration testing is a crucial testing process in the software development process. It ensures everything in your firm works together, even when there are new upgrades and updates. Therefore, you must complete the integration test for your React apps in the long run. So, this blog will help you understand the types of integration testing and its benefits.

Keep scrolling and continue to read for more insights.

Running integration tests in React components and apps can be difficult. Therefore, you must ensure to perform React integration testing properly without mistakes. Otherwise, it can impact the app badly. Besides, integration testing is ideal for react apps. It combines different modules, elements, and units to test them as a unit.

As a result, you can know through the tests if the features and elements work together seamlessly in an app. It helps you to spot bugs and errors in the software and ensure your app performs all functions.

In this article, you will see the topics as follows:

  • What is integration testing?
  • Types of integration tests
  • The benefit of react integration testing
  • How to conduct the tests?

What is Integration Testing?

As mentioned earlier, integration is software testing that includes testing various elements, components, and features as a unit. Here, the developers can detect the bugs and issues in the software with the help of integration tests. 

As a result, they can avoid the disparity between software units. In other words, you can spot flaws in the interaction between the integrated units. So, it enhances the performance of the overall system in the firm. Integration tests usually take place after the unit testing. 

Unit testing involves each developer testing the different modules that make up software. On the other hand, integration tests allow the developers to test the functioning between these modules. In other words, it helps the developer test individual modules and how they interact with each other. 

As a result, it ensures that the overall system works smoothly without any hindrance. React integration testing is essential for apps and websites that are highly interactive. The developers can check the data flow between the components in the system. It helps the business immensely since it streamlines and fastens up operations. 

Besides, it saves costs and resources for the business. You can keep the entire system seamless with the best-suited methods for testing. If you want to acquire integration testing services, you can hire software development companies. Appsierra offers the finest testing services to build robust and interactive software. 

Besides, you can access a rich pool of talents and tools for your software. The developers and QA specialists are highly skilled and experienced in the field to provide you with future-proof solutions. So, contact the experts for React integration testing.

What are the Types of Integration Testing?

Testing react apps involves different approaches. Each of these integration testing types helps you to fulfill the specific objectives. So, you must understand the integration testing types to implement the ideal one for your software. The following are the test types to test React apps:

  • Big Bang Approach
  • Incremental Approach: This approach further divides into three:
    1. Bottom-up approach
    2. Top-down approach
    3. Hybrid/Sandwich approach

Now we will briefly explain each of these types and their advantages:

1 - Big Bang Testing:

In this type of React integration testing, all the modules of the software get integrated and tested together as units. So, here the developers and testers ensure to connect all the modules at the same time as a singular entity. As a result, they can deliver a complete system at the end of the testing.


  • This type of approach is suitable for small-scale systems
  • Help saves time and accelerates the deployment process
  • No prior extensive planning required

2 - Incremental Testing Approach:

Here, you can integrate two or more logically related and functional modules. After grouping them, you can test them. As such, the testers keep on grouping related modules for testing. As a result, the testers integrate the group of modules and test them until these modules get fully tested. Here the testers can use the Bottom-up, Top-down, or Hybrid/Sandwich approach.


  • Enable testing of high-risk modules on a priority basis
  • Help find bugs and errors early since this approach helps test coded modules.

2.1 - Bottom-Up Testing Approach

The bottom-up approach is a React integration testing that involves testing lower-level modules first until they reach the higher-level modules. This approach defines how higher-level modules become reliable only if their foundational or lower-level modules perform well. As a result, once all the lower-level modules get tested, the testers can check the next level of modules.


  • Highly reliable testing approach
  • Less time for troubleshooting
  • Easy to identify and localize errors

2.2 - Top-Down Testing Approach

Unlike the bottom-down approach, this approach involves integrating and testing higher-level modules. Then, it gradually tests the lower-level modules. If any module is missing, they can use stubs as dummy programs. So, this type of approach helps identify if there are any design or infrastructural flaws.


  • Easy to spot and isolate defects
  • Help fix errors in the early stage of the development lifecycle
  • Reveal design flaws
  • This approach is simple and non-data intensive

2.3 - Hybrid Testing Approach

As the name suggests, it involves integrating and testing separate modules together. In other words, the testers combine low-level and higher-level modules and test them as a single system. Combining top-down and bottom-up test React integration testing helps the testers to get a broad insight into the app. Besides, they use drivers and stubs as a substitute for missing modules.


  • This approach applies to large-scale systems
  • Neutralizes the disadvantages of bottom-up and top-down approaches

What are the Benefits of React Integration Testing?

Most businesses use React apps and systems for a seamless workflow. As a result, the reaction integration tests beat the disadvantage of system integration testing. Besides, they are crucial for the apps to perform well. In the following, we will discuss the benefits of React integration testing:

Consistent Code:

Multiple developers write the code when building a React software app. Each developer has their logic and approach. As a result, there is a possibility for functional or usability issues when these codes get integrated. However, with the help of integration testing, the developers can ensure the codes of each component are in alignment.

Spot Missing Defects:

The developers must modify the code whenever the client's needs and conditions change. It can affect the React application as a whole since this modification can lead to changing the code logic. With the help of React integration testing, the developers can spot flaws that unit testing may have missed.

Identify Bugs:

While developing software, data gets transferred between modules. However, if this data fails to be in proper format, it can result in errors and bugs. As a result, the developers cannot read or process the data if the data is not in an organized pattern. With the Integration testing procedures, they can analyze the root cause of the troubleshooting and eliminate errors.

Proper APIs Integration:

When React software gets integrated with third-party apps and APIs, it may receive inaccurate inputs and generate false results. But, integration testing ensures each app and system communicate well with each other.

Ensure Exception Handling:

There are possibilities where the developers miss exceptions whenever the modules get integrated. Nevertheless, React integration testing allows the developers to spot the missing exception cases and revise them to build robust software.

Removes Incompatibility:

When integrating React apps with hardware and other systems, chances for bugs are high. However, integration testing helps find the bugs and make them compatible.

How to Conduct Integration Tests on React Apps?

Integration testing can be a daunting task that requires a lot of time and effort. However, the following steps will help you get a step-by-step guide to running integration testing on React apps. We have briefly explained the phase as given below:

  • The first step is to develop a test plan according to the needs.
  • Design test cases, scenarios, and scripts for further steps.
  • Conduct React integration testing on integrated modules.
  • Identify the bugs and find solutions to solve them.
  • Retest the system after the bugs get fixed.
  • Repeat the process until all modules get tested.


Integration tests have proved to be a critical testing method for software. Similarly, for React apps, React integration testing helps catch the bugs and errors that lead to software failure. So, if you need integration testing services for your React software, get the finest services from Appsierra. 

With years of experience in this domain, the company has proved its excellence at software development and testing. What are you waiting for? Visit the website and contact experts for more details.

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