coverage: add per-file branch coverage metrics#775
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Add branch coverage tracking alongside existing line coverage to help users understand if all conditional paths are being tested. The coverage report now displays: - Overall branch coverage statistics (total branches, covered branches) - Per-file branch coverage percentage in the file header - Branch coverage in the file stats section - Branch coverage information in the file tree tooltips Branches are identified as JUMPI instructions in EVM bytecode, which represent conditional jumps in Solidity code (if statements, loops, ternary operators, etc.). Fixes #285 Co-Authored-By: Claude Opus 4.5 <[email protected]>
dguido
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Summary
Changes
fuzzing/coverage/source_analysis.go:TotalBranchesandCoveredBranchesfields toSourceFileAnalysisTotalBranchCount()andCoveredBranchCount()methods toSourceAnalysisanalyzeContractBranchCoverage()function that identifies JUMPI instructions and maps them to source filesfuzzing/coverage/report_template.gohtml:Test plan
go build ./...go vet ./...Fixes #285
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