Overview

Writing test cases manually from user stories is one of the most repetitive and time-consuming tasks for QA and product teams. It often leads to inconsistent coverage, human error, and long validation cycles. Recognizing this challenge, Optimus Information built Test Case Generator, an AI-powered Microsoft Teams agent that automatically creates high-quality test cases directly from Azure DevOps user stories without requiring users to switch tools or perform manual formatting.

Test Case Generator simplifies the validation process by using Azure OpenAI to analyze user stories, acceptance criteria, and context to produce detailed test cases that link directly back to Azure DevOps. The result is faster QA readiness, consistent documentation, and reduced manual effort, all within the familiar Teams interface.

The Challenge

Quality assurance teams face persistent challenges in keeping up with the fast pace of agile development. Traditional test case writing requires manually interpreting user stories, understanding acceptance criteria, and translating them into structured test cases. This leads to several inefficiencies:

  • Time-consuming manual test case creation

  • Inconsistent coverage and duplication across teams

  • Errors or omissions in acceptance criteria mapping

  • Context switching between Teams, DevOps, and documentation tools

  • Delays in validation cycles and project readiness

Organizations needed a secure, AI-based, and Teams-native solution to accelerate test case generation while ensuring accuracy, compliance, and visibility within Azure DevOps.

The Solution

Optimus developed Test Case Generator, a fully integrated Teams-based AI agent built on Azure OpenAI (GPT-4) that automates the generation of test cases directly from Azure DevOps user stories.

The agent manages authentication, story selection, and orchestration seamlessly. Users can browse projects, select one or more stories, and trigger AI-based test case generation from inside Teams. The generated test cases are automatically linked to their original stories in Azure DevOps.

Key Capabilities

  • Teams-Native Workflow
    Work entirely within Microsoft Teams with no switching between tabs or tools.

  • Secure Azure DevOps Authentication
    OAuth-based login flow ensures secure access to organizations, projects, and user stories.

  • Story and Project Selection
    Browse Azure DevOps organizations and select one or more stories for generation.

  • AI-Powered Test Case Generation
    Produces 6–7 detailed, context-aware test cases per story aligned with acceptance criteria.

  • Real-Time Feedback
    The bot confirms each request and provides an estimated completion time.

  • Direct DevOps Integration
    Generated test cases appear automatically in Azure DevOps, linked to their original stories.

  • Scalability and Performance
    Optimized to handle up to five user stories per generation cycle with about an eight-minute turnaround.

Multi-Agent Architecture

The Test Case Generator uses a modular multi-agent system coordinated by a central orchestrator for secure integration and scalability.

Agent Role
Orchestrator Agent Manages user requests, coordinates generation, and maintains context between modules.
Auth and Access Agent Handles OAuth authentication and access to Azure DevOps organizations and projects.
Story Parser Agent Extracts story details and acceptance criteria from Azure DevOps.
Test Case Generation Agent Uses Azure OpenAI to produce structured, detailed test cases.
Integration Agent Publishes generated test cases to Azure DevOps while maintaining traceability.

Deployment

  • Platform: Microsoft Teams, Copilot Studio, Azure DevOps
    Auth and Data: Microsoft SSO (OAuth2), Azure DevOps API, Microsoft Graph API
    Tech Stack: Azure OpenAI (GPT-4), Azure Functions, Azure SQL, Teams Bot SDK

    This setup ensures secure authentication, reliable data handling, and scalability across internal and marketplace deployments.

The Results

By integrating Test Case Generator into Teams, Optimus helped QA and product teams accelerate validation cycles and improve coverage consistency.

Business Outcomes

  • 60–70% faster turnaround from story selection to test case availability

  • Improved accuracy by aligning test cases directly with acceptance criteria

  • Elimination of manual formatting and context switching between tools

  • Reduced review time with automatically linked test cases in Azure DevOps

Technologies Used

  • Azure OpenAI (GPT-4)

  • Microsoft Teams

  • Microsoft Copilot Studio

  • Azure DevOps and Graph API

  • Azure Functions

  • Azure SQL Database

  • OAuth2 (Microsoft SSO)

What’s Next

The next version of Test Case Generator will introduce inline editing of generated test cases in Teams, multi-project batch generation, and reporting dashboards for QA managers to track coverage and quality metrics. Future updates will also include integration with test automation frameworks such as Selenium and Playwright to help teams move from story to automated testing in minutes.

Contact Optimus to learn how we can help you leverage Agentic AI & Cloud services.

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