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Testing

Framework choice

This repository uses MSTest for IOBusMonitorLib.Tests.

Reason:

  • it is native to the Visual Studio and vstest.console.exe workflow already expected by this repository task set
  • it works with .NET Framework 4.7.2
  • it keeps the Windows CI path straightforward for restore, build, and test execution on GitHub Actions

Test scope

Current automated coverage focuses on core logic that does not require real PLC hardware:

  • condition expression evaluation
  • Modbus register word conversion helpers
  • Siemens address type inference
  • serial parity/port mapping helpers
  • SQLite archive creation, schema initialization, indexed inserts, latest-value loading, and bounded history loading

Current limitations

  • tests do not exercise WPF UI rendering
  • tests do not require or use physical Modbus or Siemens devices
  • local execution still requires Windows build tools for the full restore/build/test command chain used by the solution