example-remote-server/debug-test-hang.sh
Jerome 88f683ef12
Fix test suite for refactored shttp and redisTransport
- Update tests to handle async session initialization
- Fix session ID retrieval from SSE/JSON responses
- Update DELETE request tests to match new behavior
- Remove references to deprecated startServerListeningToRedis
- Add proper waits for async operations

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-09 14:50:23 +01:00

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#!/bin/bash
# Script to debug why Jest tests hang after completion
echo "=== Starting Jest test hang debugging ==="
echo "Expected: Tests should exit within 5 seconds"
echo "Actual: Tests hang indefinitely"
echo ""
# Run tests with timeout and capture output
echo "Running tests with 10 second timeout..."
timeout 10s npm test > test_output.log 2>&1 &
TEST_PID=$!
# Monitor the test process
sleep 1
echo "Test process PID: $TEST_PID"
# Wait for either completion or timeout
wait $TEST_PID
EXIT_CODE=$?
echo ""
echo "=== Test Results ==="
if [ $EXIT_CODE -eq 124 ]; then
echo "❌ TESTS TIMED OUT (hung after 10 seconds)"
else
echo "✅ Tests completed normally with exit code: $EXIT_CODE"
fi
echo ""
echo "=== Test Output (last 20 lines) ==="
tail -20 test_output.log
echo ""
echo "=== Checking for Jest hanging indicators ==="
if grep -q "Jest did not exit one second after the test run has completed" test_output.log; then
echo "❌ Found Jest hanging message"
echo ""
echo "=== Common causes of Jest hanging ==="
echo "1. Unclosed database connections"
echo "2. Open timers/intervals"
echo "3. Open file handles"
echo "4. Unresolved promises"
echo "5. WebSocket connections"
echo "6. Event listeners not cleaned up"
echo ""
echo "=== Analyzing test files for potential issues ==="
# Check for Redis connections
echo "Checking for Redis connection issues..."
grep -r "redisClient" src/ --include="*.test.ts" | head -5
# Check for timers
echo ""
echo "Checking for setTimeout/setInterval..."
grep -r "setTimeout\|setInterval" src/ --include="*.test.ts" | head -5
# Check for event listeners
echo ""
echo "Checking for event listeners..."
grep -r "addEventListener\|on(" src/ --include="*.test.ts" | head -5
echo ""
echo "=== Suggested fixes ==="
echo "1. Add --detectOpenHandles to Jest config"
echo "2. Ensure all Redis connections are closed in afterAll/afterEach"
echo "3. Clear all timers in test cleanup"
echo "4. Add explicit process.exit() if needed"
else
echo "✅ No Jest hanging message found"
fi
echo ""
echo "=== Running with --detectOpenHandles ==="
echo "This will show what's keeping Node.js alive..."
timeout 15s npm test -- --detectOpenHandles > detect_handles.log 2>&1 &
DETECT_PID=$!
wait $DETECT_PID
DETECT_EXIT=$?
if [ $DETECT_EXIT -eq 124 ]; then
echo "❌ --detectOpenHandles also timed out"
else
echo "✅ --detectOpenHandles completed"
fi
echo ""
echo "=== Open handles output ==="
tail -30 detect_handles.log
echo ""
echo "=== Cleanup ==="
rm -f test_output.log detect_handles.log
echo "Debug complete!"