cosmos-sdk/systemtests

System Tests

This package contains the testing framework for black-box system tests. It includes a test runner that sets up a multi-node blockchain locally for use in tests. The framework provides utilities and helpers for easy access and setup in tests.

Components

• CLI: Command-line interface wrapper for interacting with the chain or keyring
• Servers: Server instances to run the blockchain environment.
• Events: Event listeners
• RPC: Remote Procedure Call setup for communication.

Dependencies

• testify: Testing toolkit.
• gjson: JSON parser.
• sjson: JSON modifier.

Server and client-side operations are executed on the host machine.

Developer

Test strategy

System tests cover the full stack via cli and a running (multi node) network. They are more expensive (in terms of time/ cpu) to run compared to unit or integration tests. Therefore, we focus on the critical path and do not cover every condition.

How to use

Read the GETTING_STARTED guide to get started.

Execute a single test

go test -tags system_test -count=1 -v . --run TestStakeUnstake  -verbose

Test cli parameters

• -verbose verbose output
• -wait-time duration - time to wait for chain events (default 30s)
• -nodes-count int - number of nodes in the cluster (default 4)

Port ranges

With n nodes:

• 26657 - 26657+n - RPC
• 1317 - 1317+n - API
• 9090 - 9090+n - GRPC
• 16656 - 16656+n - P2P

For example Node 3 listens on 26660 for RPC calls

Resources

• gjson query syntax

Disclaimer

This is based on the system test framework in wasmd built by Confio.