integration

Integration Tests for Modbus Library

Overview

The integration tests are fully automated and require no external tools or manual setup. They use the built-in Modbus simulator located in internal/simulator/.

Running Tests

Simply run the tests directly:

# Run all integration tests
$ go test -v ./integration

# Run specific protocol tests
$ go test -v -run TCP ./integration
$ go test -v -run RTU ./integration
$ go test -v -run ASCII ./integration

How It Works

Each test automatically:

1. Starts a Modbus simulator server (RTU, ASCII, or TCP)
2. Creates a client connection
3. Runs comprehensive function code tests
4. Cleans up and stops the simulator

No external dependencies like diagslave or socat are needed!

Simulator CLI

You can also run the simulator standalone for manual testing:

# TCP mode
$ go run cmd/simulator/main.go -mode tcp -addr localhost:5020

# RTU mode
$ go run cmd/simulator/main.go -mode rtu -slave-id 17 -baud 19200

# ASCII mode
$ go run cmd/simulator/main.go -mode ascii -slave-id 17 -baud 19200

See cmd/simulator/main.go for all available options.