rust-async-testing

Write and validate asynchronous Rust tests using Tokio attributes.

1|Updated Dec 30, 2025
One-click install
npx skills add https://github.com/gar-ai/mallorn --skill rust-async-testing
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: rust-async-testing
Source: https://github.com/gar-ai/mallorn/tree/main/.claude/skills/rust-testing-async-testing
Command: npx skills add https://github.com/gar-ai/mallorn --skill rust-async-testing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Write async tests for Rust code using Tokio’s test attributes and multi-threaded runtimes, simplifying reliable concurrent testing.

Core Features & Use Cases

  • Tokio-based async tests using #[tokio::test] with flavor = "multi_thread" or "current_thread"
  • Configure worker threads for deterministic concurrency and fixtures for setup
  • Supports integration-style tests, channels, and timeout scenarios to validate async behavior

Quick Start

Create an example async test with tokio::test and run cargo test to verify concurrency.

Frequently Asked Questions about rust-async-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I write async tests in Rust using Tokio?▼

Write async tests in Rust using the #[tokio::test] attribute, which enables asynchronous test functions powered by the Tokio runtime. You can configure it with flavor = "multi_thread" or "current_thread" to validate concurrent behavior and run the tests using cargo test.

How do I test asynchronous Rust code with channels and timeouts?▼

Test asynchronous Rust code with channels and timeouts by configuring #[tokio::test] with multi-threaded runtimes. This approach supports integration-style tests to validate async behavior and concurrency scenarios reliably.

What is the difference between multi_thread and current_thread flavor in Tokio tests?▼

The multi_thread flavor runs async tests on multiple worker threads for concurrent execution, while current_thread runs them on a single thread. You select the flavor in the #[tokio::test] attribute to achieve deterministic concurrency and proper fixture setup.

Do I need cargo test to run Tokio async tests?▼

Yes, you need cargo test to run Tokio async tests as part of your Rust workflow. The cargo test command executes the asynchronous test functions defined by the #[tokio::test] attribute to verify your concurrency logic.

Can I configure worker threads for deterministic concurrency in Rust async tests?▼

Yes, you can configure worker threads for deterministic concurrency in Rust async tests by specifying the worker thread count in the #[tokio::test] attribute. This allows precise control over multi-threaded runtime behavior during testing.