How To Set Up Unit Testing

What is How To Set Up Unit Testing and what is it for?

How To Set Up Unit Testing is a Rust code example for testing Holochain app validation rules. It uses a mock engine to check how validation functions respond to sample data, so developers can examine tests without running the engine itself.

The project is a historical guide to testing validation rules in Holochain app code. Its README identifies a Holochain revision from June 2021 and notes that anticipated changes to validation calls would require updates, so it does not establish present compatibility.

In plain terms, the example shows how developers can test whether rules accept or reject data by simulating calls to the Holochain engine from Rust tests.

For a concrete example, it includes tests of validation rules for goals and goal comments, such as create, update, and delete cases. The repository README explains the examples and their test setup.

From 3 public sources, checked 12 November 2026.