Claude
d4ecf6db17
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
49 lines
1.1 KiB
Markdown
49 lines
1.1 KiB
Markdown
# Branch Coverage Measurement
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This directory contains scripts for measuring branch coverage of the random simulation.
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## Prerequisites
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The HTML report generation requires `lcov`:
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```bash
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sudo apt-get install lcov
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```
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## Usage
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### Quick text summary (5 second simulation)
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```bash
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make coverage-report
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```
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### HTML report with branch details (5 second simulation)
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```bash
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make coverage-html
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```
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### Custom duration
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```bash
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./scripts/measure_coverage.sh 10 # 10 second run, text output
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./scripts/measure_coverage.sh 10 --html # 10 second run, HTML output
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```
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## What gets measured
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The coverage tool:
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- Builds the test binary with coverage instrumentation (`--coverage` flag)
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- Runs the random simulation for the specified duration
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- Generates reports showing which branches were executed
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## Output
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**Text report**: Shows per-file and total branch coverage percentages
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**HTML report**: Interactive report generated by lcov/genhtml showing:
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- Overall coverage summary
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- Per-file coverage breakdown
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- Source code with execution counts
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- Branch coverage details
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The HTML report is generated in `coverage_report/index.html`
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