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direct-tests

Execute in-memory unit tests for GenLayer intelligent contracts with mocking and VM cheatcodes.

10|6|Updated Jan 29, 2026
Search Tags:#testing#developer tools#pytest#smart contracts#in-memory#genlayer
One-click install
npx skills add https://github.com/genlayerlabs/skills --skill direct-tests
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: direct-tests
Source: https://github.com/genlayerlabs/skills/tree/main/plugins/genlayer-dev/skills/direct-tests
Command: npx skills add https://github.com/genlayerlabs/skills --skill direct-tests

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enables developers to write and execute fast, in-memory tests for GenLayer intelligent contracts, eliminating the need for servers or Docker and significantly speeding up the development feedback loop.

Core Features & Use Cases

  • Rapid Testing: Execute tests in approximately 30-50ms per test case.
  • In-Memory Execution: No external dependencies like Docker or running nodes required.
  • Mocking Capabilities: Mock web requests and LLM responses for isolated testing.
  • VM Cheatcodes: Utilize powerful tools to manipulate VM state, sender, balance, time, and more.
  • Use Case: Quickly iterate on contract logic by writing and running tests directly within your development environment, ensuring correctness before deploying to a testnet.

Quick Start

Run all direct mode tests using the command pytest tests/direct/ -v.

Frequently Asked Questions about direct-tests

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

FAQPage Schema
How do I run in-memory tests for GenLayer smart contracts without using Docker?▼

Mocking LLM responses and web requests allows you to isolate contract logic during in-memory testing, ensuring that external factors do not affect the validation of your smart contract's core behavior.

What are VM cheatcodes used for when testing smart contracts?▼

VM cheatcodes provide specialized tools to manipulate VM state, including sender identity, account balance, and time, allowing you to thoroughly test and assert various smart contract scenarios in isolation.

Do I need a running node to execute smart contract unit tests?▼

No, you do not need a running node or server to execute smart contract unit tests, because the in-memory execution environment handles the validation directly within your local development setup.

How do I mock LLM responses for isolated smart contract testing?▼

You can mock LLM responses to isolate contract logic during testing, ensuring that external factors do not affect the validation of your GenLayer intelligent contracts' core behavior.

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