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Charon/scripts/frontend-test-coverage.sh

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#!/usr/bin/env bash
set -euo pipefail
# ⚠️ DEPRECATED: This script is deprecated and will be removed in v2.0.0
# Please use: .github/skills/scripts/skill-runner.sh test-frontend-coverage
# For more info: docs/AGENT_SKILLS_MIGRATION.md
echo "⚠️ WARNING: This script is deprecated and will be removed in v2.0.0" >&2
echo " Please use: .github/skills/scripts/skill-runner.sh test-frontend-coverage" >&2
echo " For more info: docs/AGENT_SKILLS_MIGRATION.md" >&2
echo "" >&2
sleep 1
ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
FRONTEND_DIR="$ROOT_DIR/frontend"
MIN_COVERAGE="${CHARON_MIN_COVERAGE:-${CPM_MIN_COVERAGE:-88}}"
cd "$FRONTEND_DIR"
# Ensure dependencies are installed for CI runs
npm ci --silent
# Ensure coverage output directories exist to avoid intermittent ENOENT errors
mkdir -p coverage/.tmp
# Run tests with coverage and json-summary reporter (force istanbul provider)
# Using istanbul ensures json-summary and coverage-summary artifacts are produced
# so that downstream checks can parse them reliably.
npm run test:coverage -- --run
SUMMARY_FILE="coverage/coverage-summary.json"
if [ ! -f "$SUMMARY_FILE" ]; then
echo "Error: Coverage summary file not found at $SUMMARY_FILE"
exit 1
fi
# Extract and print total coverage summary using python
LINES_PERCENT=$(python3 - <<'PY'
import json
import sys
try:
with open('coverage/coverage-summary.json') as f:
summary = json.load(f)
except json.JSONDecodeError as e:
print(f"Error: Invalid JSON in coverage-summary.json: {e}", file=sys.stderr)
sys.exit(1)
except KeyError as e:
print(f"Error: Missing key in coverage-summary.json: {e}", file=sys.stderr)
sys.exit(1)
# Validate structure
if 'total' not in summary:
print("Error: 'total' key not found in coverage-summary.json", file=sys.stderr)
sys.exit(1)
total = summary['total']
metrics = ['statements', 'branches', 'functions', 'lines']
for metric in metrics:
if metric not in total:
print(f"Error: '{metric}' metric missing from coverage summary", file=sys.stderr)
sys.exit(1)
if not isinstance(total[metric], dict) or 'pct' not in total[metric]:
print(f"Error: '{metric}' metric missing 'pct' field", file=sys.stderr)
sys.exit(1)
def fmt(metric):
return f"{metric['pct']}% ({metric['covered']}/{metric['total']})"
print("Frontend coverage summary:")
print(f" Statements: {fmt(total['statements'])}")
print(f" Branches: {fmt(total['branches'])}")
print(f" Functions: {fmt(total['functions'])}")
print(f" Lines: {fmt(total['lines'])}")
lines_pct = total['lines']['pct']
# Validate that lines pct is numeric
if not isinstance(lines_pct, (int, float)):
print(f"Error: Coverage percentage is not numeric: {lines_pct} ({type(lines_pct).__name__})", file=sys.stderr)
sys.exit(1)
# Print just the numeric value
print(lines_pct)
PY
)
python3 - <<PY
import sys
from decimal import Decimal, InvalidOperation
if not '$LINES_PERCENT':
print("Error: Failed to extract coverage percentage from coverage-summary.json", file=sys.stderr)
sys.exit(1)
try:
total = Decimal('$LINES_PERCENT')
except InvalidOperation as e:
print(f"Error: Coverage value is not numeric: '$LINES_PERCENT' ({e})", file=sys.stderr)
sys.exit(1)
try:
minimum = Decimal('$MIN_COVERAGE')
except InvalidOperation as e:
print(f"Error: Minimum coverage value is not numeric: '$MIN_COVERAGE' ({e})", file=sys.stderr)
print(" Set CHARON_MIN_COVERAGE or CPM_MIN_COVERAGE to a numeric percentage value.", file=sys.stderr)
sys.exit(1)
status = "PASS" if total >= minimum else "FAIL"
print(f"Coverage gate: {status} (lines {total}% vs minimum {minimum}%)")
if total < minimum:
print(f"Frontend coverage {total}% is below required {minimum}% (set CHARON_MIN_COVERAGE or CPM_MIN_COVERAGE to override)", file=sys.stderr)
sys.exit(1)
PY