Testing
Testing
Use package tests as examples: protocol, LRC, session retry, client behavior, service provider registration, and response parsing are covered separately.
Unit
Use FakeTransport and verify exact command behavior.
Integration
Use a terminal simulator or controlled POS lab before connecting stores.
Acceptance
Verify operational recovery: drop connection, call sendLastResult(), and reconcile.
Commands
composer test
composer lint
composer analyse
Golden frames
Keep known ECR17 byte frames as fixtures for parser and LRC regression tests.
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