---
id: 4591
title: "Mutation testing comes to DAML"
source_domain: blog.trailofbits.com
source_url: "https://blog.trailofbits.com/2026/07/08/mutation-testing-comes-to-daml/"
published_at: "2026-07-08 11:00"
tags: ["open-source", "smart-contracts", "daml", "software-testing", "tooling", "blockchain", "mutation-testing"]
phying_url: "https://phying.com/item/4591"
lang: en
---

# Mutation testing comes to DAML

## Summary

Trail of Bits' Mewt mutation-testing engine adds DAML support: mutants for the Canton Network language, including two aimed at authorization primitives, grade tests by how many survive.

## Intelligence Metadata

- **Sources:** blog.trailofbits.com
- **Published:** 2026-07-08 11:00
- **Original:** https://blog.trailofbits.com/2026/07/08/mutation-testing-comes-to-daml/
- **Phying News:** https://phying.com/item/4591