Enhance the branch coverage measurement tool with HTML report generation
that shows exactly which branches were taken during simulation execution.
Changes:
- Add generate_coverage_html.sh script to create interactive HTML reports
- Update measure_coverage.sh with --html flag to generate reports
- Add *.gcov, *.gcda, *.gcno to .gitignore
- HTML reports show:
- Overall coverage summary with visual progress bars
- Per-file coverage breakdown with clickable links
- Source code view with color-coded branch coverage
- Green highlight: branches taken
- Red highlight: branches not taken
- Branch execution counts and percentages
Usage:
./measure_coverage.sh [duration] --html
The HTML report is generated in coverage_report/index.html and can be
viewed in any web browser. Each source file links to a detailed view
showing which specific branches were executed.
This commit adds tooling to measure how many branches the random simulation
reaches during execution, which helps understand code coverage and identify
untested code paths.
Changes:
- Add coverage build target to Makefile with --coverage flags
- Create measure_coverage.sh script to build, run, and report branch coverage
- Add signal handlers (SIGINT/SIGTERM) to main_test.c for clean shutdown
- Update clean target to remove coverage files (*.gcda, *.gcno)
The script runs the simulation for a specified duration (default 5 seconds),
then uses gcov to analyze which branches were executed. In a 3-second run,
the simulation reaches approximately 32% of all branches (781/2431).
Usage:
./measure_coverage.sh [duration_in_seconds]
Example output shows per-file and total branch coverage statistics.
Claude