Updated

Updated · InfoWorld · Aug 6

Microsoft Releases Open-Source Unit Test Agent, Available in GitHub Copilot CLI and VS Code Preview

Updated

Updated · InfoWorld · Aug 6

Microsoft Releases Open-Source Unit Test Agent, Available in GitHub Copilot CLI and VS Code Preview

2 articles · Updated · InfoWorld · Aug 6

Released July 31, Microsoft’s open-source code-testing-generator learns a repository, then plans, writes and validates unit tests for any programming language.
The agent runs through a research-plan-implement pipeline: it finds target code, detects the language and test framework, checks existing tests, and chooses direct, single-pass or iterative generation paths.
Microsoft said it currently covers only unit tests, leaving integration, end-to-end, browser and performance testing outside scope.
Before finishing, the tool probes whether small code changes would break tests, flags weak assertions, verifies requested scenarios, and runs the full workspace build and test suite.
The agent is available in the dotnet-test plugin in the dotnet/skills GitHub repository, with access through GitHub Copilot CLI and preview plugin support in Visual Studio Code and VS Code Insiders.

Sources

Will Microsoft's new AI test generator actually catch your bugs, or just blindly validate your broken code?

If AI automates unit testing, who takes the blame when a hallucinated test approves a catastrophic software failure?

Can an AI agent truly understand your code's intent, or is it just creating a false sense of security?

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