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>

debug-test-hang.sh

@@ -0,0 +1,98 @@
+#!/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!"