# Microsoft Open Sources code-testing-generator: a Polyglot Unit-Test Agent That Hits 92.1% Task Completion Versus 78.9% for Stock Copilot

> Source: <https://www.marktechpost.com/2026/08/06/microsoft-open-sources-code-testing-generator/>
> Published: 2026-08-07 05:42:45+00:00

Microsoft has open sourced code-testing-generator, a polyglot unit-test agent shipping in the MIT-licensed dotnet/skills repository. It reads a repository before writing anything — detecting the language, test framework, existing conventions, and the real build and test commands — then plans, writes, runs and validates the tests it produces. On Microsoft's internal 152-task benchmark it completed 140 tasks against 120 for stock GitHub Copilot on the same model, with the gain concentrated almost entirely in vague prompts and diff-targeted requests.

The post [Microsoft Open Sources code-testing-generator: a Polyglot Unit-Test Agent That Hits 92.1% Task Completion Versus 78.9% for Stock Copilot](https://www.marktechpost.com/2026/08/06/microsoft-open-sources-code-testing-generator/) appeared first on [MarkTechPost](https://www.marktechpost.com).