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2025-11-29 18:20:21 +08:00

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#!/bin/bash
# Purpose: Verify test coverage for code being refactored
# Version: 1.0.0
# Usage: ./verify-tests.sh <scope> [min-coverage]
# Returns: 0 if coverage adequate, 1 if insufficient
# Dependencies: npm, test runner (jest/mocha/etc)
set -euo pipefail
# Configuration
SCOPE="${1:-.}"
MIN_COVERAGE="${2:-70}"
OUTPUT_FILE="coverage-report.json"
# Colors for output
RED='\033[0;31m'
YELLOW='\033[1;33m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color
# Check if scope exists
if [ ! -e "$SCOPE" ]; then
echo -e "${RED}Error: Scope does not exist: $SCOPE${NC}" >&2
exit 1
fi
echo "Verifying test coverage for: $SCOPE"
echo "Minimum coverage required: ${MIN_COVERAGE}%"
echo ""
# Check if package.json exists
if [ ! -f "package.json" ]; then
echo -e "${YELLOW}Warning: No package.json found. Skipping test coverage check.${NC}"
exit 0
fi
# Check if test script exists
if ! grep -q '"test"' package.json; then
echo -e "${YELLOW}Warning: No test script found in package.json. Skipping test coverage check.${NC}"
exit 0
fi
# Run tests with coverage
echo "Running tests with coverage..."
echo ""
# Try different test runners
if npm test -- --coverage --watchAll=false --json --outputFile="$OUTPUT_FILE" 2>&1; then
TEST_RUNNER="jest"
elif npm run test:coverage 2>&1; then
TEST_RUNNER="npm"
else
echo -e "${YELLOW}Warning: Could not run tests with coverage${NC}"
echo "Make sure your test runner supports coverage reporting"
exit 0
fi
echo ""
# Try to find coverage summary
COVERAGE_SUMMARY=""
if [ -f "coverage/coverage-summary.json" ]; then
COVERAGE_SUMMARY="coverage/coverage-summary.json"
elif [ -f "coverage/lcov.info" ]; then
echo "LCOV format detected, parsing..."
# Convert lcov to summary (simplified)
COVERAGE_SUMMARY="coverage/lcov.info"
elif [ -f "$OUTPUT_FILE" ]; then
COVERAGE_SUMMARY="$OUTPUT_FILE"
fi
if [ -z "$COVERAGE_SUMMARY" ]; then
echo -e "${YELLOW}Warning: Could not find coverage report${NC}"
echo "Coverage report paths checked:"
echo " - coverage/coverage-summary.json"
echo " - coverage/lcov.info"
echo " - $OUTPUT_FILE"
exit 0
fi
# Parse coverage results
echo "=== Test Coverage Results ==="
echo ""
if [[ "$COVERAGE_SUMMARY" == *.json ]]; then
# JSON format (Jest)
if jq empty "$COVERAGE_SUMMARY" 2>/dev/null; then
# Check if it's coverage-summary.json format
if jq -e '.total' "$COVERAGE_SUMMARY" >/dev/null 2>&1; then
STATEMENTS=$(jq -r '.total.statements.pct // 0' "$COVERAGE_SUMMARY")
BRANCHES=$(jq -r '.total.branches.pct // 0' "$COVERAGE_SUMMARY")
FUNCTIONS=$(jq -r '.total.functions.pct // 0' "$COVERAGE_SUMMARY")
LINES=$(jq -r '.total.lines.pct // 0' "$COVERAGE_SUMMARY")
echo "Overall Coverage:"
echo " Statements: ${STATEMENTS}%"
echo " Branches: ${BRANCHES}%"
echo " Functions: ${FUNCTIONS}%"
echo " Lines: ${LINES}%"
echo ""
# Check if coverage meets minimum
COVERAGE_OK=true
if (( $(echo "$STATEMENTS < $MIN_COVERAGE" | bc -l) )); then
COVERAGE_OK=false
echo -e "${RED}✗ Statements coverage (${STATEMENTS}%) below minimum (${MIN_COVERAGE}%)${NC}"
else
echo -e "${GREEN}✓ Statements coverage (${STATEMENTS}%) meets minimum${NC}"
fi
if (( $(echo "$BRANCHES < $MIN_COVERAGE" | bc -l) )); then
COVERAGE_OK=false
echo -e "${RED}✗ Branches coverage (${BRANCHES}%) below minimum (${MIN_COVERAGE}%)${NC}"
else
echo -e "${GREEN}✓ Branches coverage (${BRANCHES}%) meets minimum${NC}"
fi
if (( $(echo "$FUNCTIONS < $MIN_COVERAGE" | bc -l) )); then
COVERAGE_OK=false
echo -e "${RED}✗ Functions coverage (${FUNCTIONS}%) below minimum (${MIN_COVERAGE}%)${NC}"
else
echo -e "${GREEN}✓ Functions coverage (${FUNCTIONS}%) meets minimum${NC}"
fi
if (( $(echo "$LINES < $MIN_COVERAGE" | bc -l) )); then
COVERAGE_OK=false
echo -e "${RED}✗ Lines coverage (${LINES}%) below minimum (${MIN_COVERAGE}%)${NC}"
else
echo -e "${GREEN}✓ Lines coverage (${LINES}%) meets minimum${NC}"
fi
echo ""
# Find files with low coverage
echo "Files with Coverage < ${MIN_COVERAGE}%:"
jq -r --arg min "$MIN_COVERAGE" '
. as $root |
to_entries[] |
select(.key != "total") |
select(.value.lines.pct < ($min | tonumber)) |
"\(.key): \(.value.lines.pct)%"
' "$COVERAGE_SUMMARY" | head -20
echo ""
if [ "$COVERAGE_OK" = true ]; then
echo -e "${GREEN}Status: PASSED - Test coverage is adequate${NC}"
echo ""
echo "✓ Safe to refactor - code is well tested"
exit 0
else
echo -e "${RED}Status: FAILED - Test coverage insufficient${NC}"
echo ""
echo "⚠ Recommendations:"
echo "1. Add tests before refactoring"
echo "2. Focus refactoring on well-tested code"
echo "3. Write tests for critical paths first"
echo ""
exit 1
fi
fi
fi
fi
# If we get here, couldn't parse coverage
echo -e "${YELLOW}Warning: Could not parse coverage report${NC}"
echo "Coverage file: $COVERAGE_SUMMARY"
echo ""
echo "Please verify test coverage manually before refactoring."
exit 0