Case study cover

95% Reduction in bug leakage to production through API Test Automation

85%

reduction in manual regression time

95%

reduction in bug leakage

70%

reduction in high-severity functional bugs

The Opportunity

Using API Test Automation for Early Bug Detection

In a landscape where software quality directly impacts business success, our client faced a pivotal challenge: the need for early bug detection and a significant reduction in manual testing efforts. Testing late into the development lifecycle not only delayed deliverables but also inflated bug-fixing costs, thus impeding timely project completion and affecting time to market.

The Solution

Developing API Test Automation Suite using Postman & Javascript

  • Utilizing Postman, we created test cases in JavaScript to test software functionality via APIs and tested each API for the following:

    • Payload Verification

    • Schema Validation

    • Status Code Validation

    • Response Time Validation

    With NodeJS and Newman, we seamlessly executed these test cases, enabling integration with various systems, including databases and remote VMs.

  • For continuous test execution, we integrated the automated test suite into our GitHub CI/CD pipeline, ensuring continuous testing throughout several phases of the development lifecycle. This integration facilitated swift identification and resolution of bugs, enhancing overall software quality.

  • Additionally, by empowering developers to utilize the same automated test suite locally, we experienced a substantial improvement in bug detection during the API development phase. This allowed developers to address issues before the code integration happens.

The Impact

85%

reduction in manual regression time, allowing our client to reallocate resources to more strategic tasks.

95%

reduction in high-severity bug leakage to the production environment, ensuring a seamless user experience.

70%

reduction in the occurrence of high-severity functional bugs, significantly improving software quality.

60%

reduction in bugs identified during the API development phase leads to more robust development and faster iteration cycles

50%

reduction in time taken to roll out new features to production, enabling our customers to stay ahead in a competitive market.

Lessons Learned

This effort provided us with several key lessons for the future:

  • The importance of embracing automation to streamline testing processes and enhance software quality.

  • The value of continuous integration and continuous deployment (CI/CD) in fostering a culture of efficiency and agility.

  • The critical role of comprehensive test reporting is in facilitating informed decision-making and prompt issue resolution.

  • The significance of empowering developers with access to the automated test suite during API development.

This quote underscores the importance of shift left testing, where testing is integrated earlier in the development process, leading to cost-effective bug detection and resolution. With API test automation, we were able to shift our testing left, which has helped our client achieve optimised software quality, accelerated delivery timelines, and enhanced customer satisfaction. Moving forward, these insights will inform our approach to future projects, ensuring continued success and innovation

Tools & Technologies