Test Coverage
Analyze and improve test coverage with comprehensive reporting and gap identification
npx claude-code-templates@latest --command testing/test-coverage Scanned by NVIDIA SkillSpector
Automated static analysis (no LLM) · v2.12.0 · 2026-10-23
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Content
Test Coverage
Analyze and improve test coverage with detailed reporting and gap analysis: $ARGUMENTS
Current Coverage Context
- Test framework: !
find . -name "jest.config.*" -o -name ".nycrc*" -o -name "coverage.xml" | head -1 || echo "Detect framework" - Coverage tools: !
npm ls nyc jest @jest/core 2>/dev/null | grep -E "nyc|jest" | head -2 || echo "No JS coverage tools" - Existing coverage: !
find . -name "coverage" -type d | head -1 && echo "Coverage data exists" || echo "No coverage data" - Test files: !
find . -name "*.test.*" -o -name "*.spec.*" | wc -ltest files
Task
Execute comprehensive coverage analysis with improvement recommendations and reporting:
Coverage Type: Use $ARGUMENTS to focus on line coverage, branch coverage, function coverage, statement coverage, or comprehensive reporting
Coverage Analysis Framework:
- Coverage Tool Setup - Configure appropriate tools (Jest, NYC, Istanbul, Coverage.py, JaCoCo), setup collection settings, optimize performance, enable reporting
- Coverage Measurement - Generate line coverage, branch coverage, function coverage, statement coverage reports, identify uncovered code paths
- Gap Analysis - Identify critical uncovered paths, analyze coverage quality, assess business logic coverage, evaluate edge case handling
- Threshold Management - Configure coverage thresholds, implement quality gates, setup trend monitoring, enforce minimum standards
- Reporting & Visualization - Generate detailed reports, create coverage dashboards, implement trend analysis, setup automated notifications
- Improvement Planning - Prioritize coverage gaps, recommend test additions, identify refactoring opportunities, plan coverage enhancement
Advanced Features: Differential coverage analysis, coverage trend monitoring, integration with code review, automated coverage alerts, performance impact assessment.
Quality Insights: Coverage quality assessment, test effectiveness analysis, maintainability correlation, risk area identification.
Output: Comprehensive coverage analysis with detailed reports, gap identification, improvement recommendations, and quality metrics tracking.