Files
ToastyFS/scripts
Claude d4ecf6db17 Replace custom HTML generation with lcov/genhtml
Use the standard lcov tools instead of custom HTML generation.

Changes:
- Completely rewrite generate_coverage_html.sh to use lcov
- Install lcov if not available
- Use lcov to capture coverage data from .gcda files
- Use genhtml to create HTML reports with branch coverage
- Add scripts/README.md with usage instructions

Benefits:
- Professional HTML reports with standard lcov styling
- Better branch coverage visualization
- Sortable tables by line/function/branch coverage
- Source code view with execution counts
- Much simpler script (30 lines vs 200+ lines)

The reports now show:
- 32.1% branch coverage (781/2431 branches)
- 43.5% line coverage
- 61.3% function coverage
2025-11-13 20:41:28 +00:00
..

Branch Coverage Measurement

This directory contains scripts for measuring branch coverage of the random simulation.

Prerequisites

The HTML report generation requires lcov:

sudo apt-get install lcov

Usage

Quick text summary (5 second simulation)

make coverage-report

HTML report with branch details (5 second simulation)

make coverage-html

Custom duration

./scripts/measure_coverage.sh 10          # 10 second run, text output
./scripts/measure_coverage.sh 10 --html   # 10 second run, HTML output

What gets measured

The coverage tool:

  • Builds the test binary with coverage instrumentation (--coverage flag)
  • Runs the random simulation for the specified duration
  • Generates reports showing which branches were executed

Output

Text report: Shows per-file and total branch coverage percentages

HTML report: Interactive report generated by lcov/genhtml showing:

  • Overall coverage summary
  • Per-file coverage breakdown
  • Source code with execution counts
  • Branch coverage details

The HTML report is generated in coverage_report/index.html