Continuous Testing in DevOps: What You Should Know

Web and mobile applications take a lot of work and money from software development to deployment. After the software product is released, the ideal scenario is to have better quality and interoperation without glitches. But what if errors pop up?

To avoid app glitches and errors popping up, continuous testing in DevOps is crucial. It helps to improve application quality with rigorous and thorough testing.

Apps across different fields from e-commerce to finance, fitness, and games all require thorough testing to ensure their quality.

So, what does continuous testing in DevOps mean?

The acronym ‘DevOps’ refers to software Development (Dev) combined with Operations (Ops). DevOps is a software engineering practice aimed at increasing an organization’s speed to deliver applications and services faster than manual software development processes, while ensuring smooth interaction between developers and the operations team.

Continuous testing in DevOps is an approach where applications are tested at every stage of the software development life cycle (SDLC). This approach encourages and involves automating tests as much as possible throughout the development cycle.

DevOps testing services come in very handy to provide clients with continuous testing in DevOps, with firms employing DevOps testing service providers to execute automated tests that are carried out at regular intervals every time code changes are made. Both parties align their priorities and work together to produce and deploy the highest quality software.

Moreover, continuous testing in DevOps includes the concepts of continuous integration/continuous delivery (CI/CD) combined with automation to test code for every new iteration, while reducing the risk of errors.

Continuously testing software thoroughly at every stage of the SDLC is an effective method to prevent app glitches and errors popping up, which ensures the best quality app is developed all through to the final stage where it is delivered to users.

Benefits of continuous testing in DevOps

The main benefits of choosing continuous testing for businesses include:

1. Better user experience

Advanced continuous testing practices create different test cases and troubleshooting conditions, while observing the user's response.

The data gathered from these simulations help developers remove unnecessary add-ons, thereby ensuring better user experience and avoiding additional development costs.

2. Deployment at higher quality

Applying continuous testing provides an automated method of managing the quality of internal operations at every stage of SDLC. By receiving feedback from unit testing modules, the developer solves those errors and improves the overall quality.

3. Fast error discovery and recovery

Large businesses have multiple departments interconnected, meaning they are multilayered. Continuous testing in DevOps helps the development team to divide that architecture into scalable solutions, leading to fast error discovery and recovery without security breaches.

Common testing methodologies used in DevOps

Methodologies used in DevOps continuous testing involve a group of tests that are aimed at ensuring system security, reliability, and performance. They include:

1. Unit testing

This testing is the ideal solution for small class load, volume, or memory leak checks over the designs to identify any inefficiencies at the early stage of software development.

2. Shift-left testing

This method prioritizes performing testing at the early stage of SDLC to prevent several errors and debugging problems down the road.

3. Shift-right testing

Unlike above, this method prioritizes testing at the end stage of SDLC, mainly for elevating the user experience, overall functionality, and error-free performance.

4. Integration testing

When errors surface, first, it checks for virtual dependencies within the system that may affect end output. Later, composite code is used without deterring the main functions.

5. Functional testing

This testing is used to check whether expectations are meeting the user experience. Also, whether software functions without disrupting the workflow or not.

Popular tools used for continuous testing in DevOps

While mastering continuous testing in DevOps can be difficult, choosing the right tool to use for continuous testing in DevOps can be even more difficult.

However, using the right tool for continuous testing in DevOps is greatly advantageous for your software testing capabilities and application delivery success.

To narrow your options and point you in the direction to find the right tools for continuous testing in DevOps, here is a list of the most popular, top-ranked tools for continuous testing in DevOps:

1. Katalon

Katalon platform is a mix of Selenium and Appium. It's a good solution as it performs elaborative automated tests in DevOps. Also, the platform is easy to use with CI/CD integration and gives instant feedback applicable to web, API, and mobile applications.

2. Selenium

Selenium is the go-to choice for automated web testing. It is an open-source framework, mainly opted by Quality Assurance (QA) engineers with advanced programming skills. In addition, for cross-environment testing, it supports a wide range of browsers.

3. Eggplant

Eggplant supports automation technologies and platforms for web and mobile applications. As a result, it is pretty easy to learn and provides a test lab with a cloud devices management service that allows access to the team to use with continuous testing and deployment.

4. Tosca

Tosca is a commercial automation tool for continuous testing in DevOps. It supports web, mobile, and API applications. This helps the business stakeholders to be directly involved in the testing process. Also, Tosca offers a good range of tests with the ALM system.

5. Watir

Watir is an excellent open-source tool for continuous testing and automation. It supports cross-browser testing, especially for data-driven applications. Integrating Watir with BDD tools and framework in addition to Cucumber or RSpect is a good choice for testing.

Best practices for incorporating DevOps testing strategies

Some best practices that will help integrate continuous testing in DevOps successfully include:

I. Integrate automation tests

In DevOps continuous testing, the pipeline will be constantly updated with new changes. To eliminate CI, opting for continuous integration of the software with the automated test enables easy iteration of new code, helping to follow the DevOps testing strategy.

II. Build a continuous delivery pipeline

The continuous delivery pipeline should be the last stage, where all tests are approved, and the software is released for production. Continuous delivery allows a prompt feedback mechanism with high response while supporting monitoring tools.

III. Testing should be shared responsibility

For a fundamental DevOps pipeline to produce the best quality in less time, shared responsibility is necessary. The testing strategy should encourage the QA team, the designing team, and the testing team to collaboratively produce the best end product.

IV. Continuous monitoring processes

If the pipeline is set up, the continuous testing process will be integrated with automated testing. Hence, the important step that lies here is continuous monitoring. Development and QA teams should be dedicated to working with constant feedback for errors till the end.  

Conclusion

Businesses that want to modernize their operations and services in line with current modern trends are highly advised to opt for DevOps practices. It’s also recommended to upgrade your web, desktop, API, and or mobile applications to a flexible framework with a thorough testing process.

But remember not to compromise on quality and performance when you identify issues at any point in the development life cycle using continuous testing in DevOps.