[VISION] CTRL Coverage Tooling - npm-winccoa-ctrl-coverage

[mPokornyETM]

Idea title

CTRL Coverage Tooling

Describe your idea

Vision: CTRL Coverage Tooling

Problem Statement

WinCC OA CTRL TestFramework generates code coverage data when running tests with CTRL_COVERAGE enabled. However, there's no tooling to:

• Parse and aggregate coverage data
• Generate human-readable reports (HTML, JSON, LCOV)
• Integrate with CI/CD pipelines (GitHub Actions, GitLab CI)
• Visualize coverage in VS Code

Proposed Solution

Create a new repository npm-winccoa-ctrl-coverage that provides:

Core Library (npm package)

• Parse CTRL coverage output files
• Aggregate coverage across multiple test runs
• Calculate coverage percentages (statements, functions, lines)
• Export to standard formats (LCOV, Cobertura, JSON)

CLI Tool

• ctrl-coverage report - Generate HTML/text reports
• ctrl-coverage merge - Combine multiple coverage files
• ctrl-coverage check - Fail CI if coverage below threshold

VS Code Integration

• Coverage gutter indicators (green/red lines)
• Coverage summary in status bar
• Integration with vscode-winccoa-ctrl-test-framework

Technical Considerations

1. Coverage File Format: Research WinCC OA CTRL coverage output format
2. Language: TypeScript (consistent with tools-pack ecosystem)
3. VS Code API: Use vscode.TestCoverageController for native integration
4. CI Support: GitHub Actions action for coverage reporting

Related

• Enables vscode-winccoa-ctrl-test-framework issue Automate repo settings & GitFlow protections via YAML + Rulesets (main, develop, release/, hotfix/, v tags)* #35 (CTRL_COVERAGE flag)
• Similar to istanbul/nyc for JavaScript coverage

Labels

enhancement, vision, P1