cosmos-sdk/tests/systemtests

Testing

Test framework for system tests. Starts and interacts with a (multi node) blockchain in Go. Supports

• CLI
• Servers
• Events
• RPC

Uses:

• testify
• gjson
• sjson Server and client side 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.

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.