How to Build Automated Unit Tests for PLC Sequences in AutomationView
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title: AutomationView Unit Testing Architecture
---
flowchart TD
classDef test fill:#3b82f6,stroke:#2563eb,color:#ffffff
classDef sfc fill:#10b981,stroke:#059669,color:#ffffff
classDef report fill:#f59e0b,stroke:#d97706,color:#ffffff
A["Python Test Runner (PyTest)"]:::test --> B["Mock I/O Variables"]:::test
B --> C["Execute SFC Step/Transition"]:::sfc
C --> D{"Assert Outputs == Expected"}
D -- Pass --> E["Generate Coverage Report"]:::report
D -- Fail --> F["Flag Error & Halt CI/CD"]:::report
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How to Build Automated Unit Tests for PLC Sequences in AutomationView
In modern software engineering, pushing code to production without running automated unit tests is considered professional malpractice. Yet, in the industrial automation world, engineers routinely download thousands of lines of ladder logic into critical infrastructure relying solely on manual simulation and blind faith. AutomationView changes this paradigm entirely by introducing a native Python-based unit testing […]
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