The Agility Maturity Paradox: Uncovering the Potential of AI in Unit Testing


Startups like 1Huddle, pioneers in workforce training and performance, are renowned for their agility, their ability to bring impactful features to market swiftly, and their commitment to customer satisfaction and growth. Reduced cycle time enhances customer satisfaction and drives business growth. But there’s a twist—how can we maintain rapid development in the face of limited resources? It’s a question that echoes through the startup world in 2024, especially after the challenges of 2023.

1Huddle is dedicated to reshaping the way organizations train, develop, and engage their employees. As their tech partner, Codewalla has been pivotal in navigating the complex terrain of modern software development. We set out to tackle a a key challenge—how to increase development speed and reduce cycle time without need to expand resources. Did we succeed? Let’s delve into the nitty-gritty, exploring the journey and insights that emerged from this exploration.

The Challenges We Faced

Coding Challenges: Over time, the codebase had evolved, and it included sections that had become intricate, occasionally unclear, and inconsistent. This complexity made testing and maintenance more challenging.

//First if condition
if (updatedProfile.isLeft()) {
    var error = updatedProfile.getLeft();
    //Nested if Condition
    if (error instanceof ProfileExist exactError) {
        // Code Block 1
        var failedResponse = new FailResponseExtractor(
                exactError.message, exactError.jsonify(this.mapper));
        return (new ResponseEntity<>(
                failedResponse.jsonify(this.mapper), HttpStatus.OK));
    } else if (error instanceof ProfileAlreadyActivated exactError) {
        // Duplicated Code block
        var failedResponse = new FailResponseExtractor(
                exactError.message, exactError.jsonify(this.mapper));
        return new ResponseEntity<>(
                failedResponse.jsonify(this.mapper), HttpStatus.OK);

Low Test Coverage: Like many codebases that have evolved over time, the codebase had gaps in unit test coverage. These gaps made it difficult to detect and fix bugs and increased the risk of regressions.

High Manual Effort: The development team had invested a substantial amount of time and resources in manually creating and executing unit test cases. This manual effort was not only time-consuming but also limited their ability to focus on other critical aspects of software development.

Our Initiative

Assess the Current Test Coverage: We conducted a thorough evaluation of the existing unit test cases, identifying areas that needed improvement.

Integrate Copilot for Unit Testing: We integrated Copilot into our development pipeline. This transformative step brought automation to unit test case generation, potentially radically streamlining development.

Collaborate with Copilot for Refactoring: As a prerequisite for testing automation we embarked on a refactoring journey, making the code more testable and readable.

Implementation in Action

The implementation process involved the following activities

Generate Unit Test Cases with Copilot: Copilot analyzed the existing code and automatically generated unit test cases for various functions and scenarios.

void testUpdatePlayerProfile() {
    // Arrange
    String sessionToken = "sessionToken";
    UpdatePlayerProfileRequest request = new UpdatePlayerProfileRequest();
    ResponseEntity<String> expectedResponse = new ResponseEntity<>(
            "Success", HttpStatus.OK);
            sessionToken, request)).thenReturn(expectedResponse);

    // Act
    ResponseEntity<String> response = playerProfileService
            .updatePlayerProfile(sessionToken, request);

    // Assert
    assertEquals(expectedResponse, response);

A sample test case among the many generated test cases by co pilot

Refine the Code with Copilot’s Suggestions: Copilot not only generated test cases but also provided valuable insights and recommendations to enhance code quality and structure. This included suggesting better naming conventions, simplifying complex logic, and adding comments and documentation for improved readability.

Expand the Automated Test Suite with Copilot: Copilot didn’t stop at generating test cases; it suggested and created additional test cases for critical functions and edge scenarios. This significantly increased test coverage and enhanced the codebase’s robustness.

The Results Speak for Themselves

The initiative yielded impressive results

Increased Test Coverage: Codewalla and 1Huddle achieved a substantial improvement in test coverage, bolstering the reliability and robustness of their software application.

Reduced Bugs and Regressions: The comprehensive unit tests generated by Copilot played a pivotal role in identifying and rectifying existing bugs while preventing the emergence of new ones. This led to improved system stability and performance.

Saved Time and Resources: Copilot’s automated test case generation drastically reduced the manual testing effort. This not only saved time but also allowed the development team to redirect their focus towards other vital aspects of software development.

Navigating Challenges

However, the journey wasn’t without its hurdles 

Understanding Ambiguous or Complex Code: Copilot occasionally faced challenges in generating meaningful test cases for sections of code that had become intricate or unclear. This highlighted the importance of maintaining clean and clear code for optimal AI collaboration.

Following Consistent Naming Conventions: Copilot encountered difficulties when generating test cases for functions or variables with inconsistent or confusing names. This underscored the need for maintaining uniform naming practices.

In Conclusion

1Huddle’s experience, in collaboration with Codewalla, serves as a testament to the critical role of unit testing in establishing a strong and dependable codebase. Codewalla’s leadership in initiating this transformative journey addressed a pressing business challenge shared by startups in 2024. Copilot proved to be a valuable partner in automating test case generation, emphasizing the potential of AI in enhancing software quality and streamlining the development process.

As we continue to explore the frontiers of technology and innovation, Codewalla remains committed to delivering solutions that meet the highest standards of excellence.

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