Added all of the existing code

test_stress.sh

@@ -0,0 +1,138 @@
+#!/bin/bash
+
+# TechIRCd Stability Stress Test
+echo "=== TechIRCd Stability Stress Test ==="
+echo "This test simulates conditions that previously caused freezing"
+echo
+
+# Start the server
+echo "Starting TechIRCd..."
+./techircd start &
+SERVER_PID=$!
+
+echo "Server started with PID: $SERVER_PID"
+echo "Waiting 3 seconds for server to initialize..."
+sleep 3
+
+# Function to create a client connection
+create_client() {
+    local client_id=$1
+    local duration=$2
+    
+    timeout ${duration}s bash -c "
+        exec 3<>/dev/tcp/localhost/6667
+        echo 'NICK TestUser$client_id' >&3
+        echo 'USER testuser$client_id 0 * :Test User $client_id' >&3
+        sleep 2
+        echo 'JOIN #test' >&3
+        
+        # Send periodic messages to keep connection alive
+        for i in {1..20}; do
+            echo 'PING :client$client_id' >&3
+            sleep 1
+            echo 'PRIVMSG #test :Message \$i from client $client_id' >&3
+            sleep 1
+        done
+        
+        echo 'QUIT :Test complete' >&3
+        exec 3<&-
+        exec 3>&-
+    " 2>/dev/null &
+}
+
+# Function to create unstable client (connects and disconnects quickly)
+create_unstable_client() {
+    local client_id=$1
+    
+    timeout 5s bash -c "
+        exec 3<>/dev/tcp/localhost/6667
+        echo 'NICK Unstable$client_id' >&3
+        echo 'USER unstable$client_id 0 * :Unstable User $client_id' >&3
+        sleep 1
+        # Abruptly close connection without QUIT
+        exec 3<&-
+        exec 3>&-
+    " 2>/dev/null &
+}
+
+echo "Phase 1: Testing multiple stable connections..."
+# Create 10 stable clients
+for i in {1..10}; do
+    create_client $i 30
+    echo -n "."
+    sleep 0.5
+done
+echo " (10 stable clients created)"
+
+echo "Phase 2: Testing unstable connections (simulating network issues)..."
+# Create 20 unstable clients that disconnect abruptly
+for i in {1..20}; do
+    create_unstable_client $i
+    echo -n "."
+    sleep 0.2
+done
+echo " (20 unstable clients created)"
+
+echo "Phase 3: Testing rapid connection attempts..."
+# Create many short-lived connections
+for i in {1..30}; do
+    timeout 2s bash -c "
+        exec 3<>/dev/tcp/localhost/6667
+        echo 'NICK Rapid$i' >&3
+        exec 3<&-
+        exec 3>&-
+    " 2>/dev/null &
+    sleep 0.1
+done
+echo "30 rapid connections created"
+
+echo
+echo "Monitoring server health for 45 seconds..."
+echo "Press Ctrl+C to interrupt test early"
+
+# Monitor server for 45 seconds
+for i in {1..45}; do
+    if ! kill -0 $SERVER_PID 2>/dev/null; then
+        echo "❌ Server died during stress test!"
+        echo "=== Stress Test Failed ==="
+        exit 1
+    fi
+    
+    # Test server responsiveness every 10 seconds
+    if [ $((i % 10)) -eq 0 ]; then
+        echo "Testing server responsiveness at ${i}s..."
+        timeout 3s bash -c '
+            exec 3<>/dev/tcp/localhost/6667
+            echo "NICK HealthCheck$RANDOM" >&3
+            echo "USER healthcheck 0 * :Health Check" >&3
+            sleep 1
+            echo "QUIT :Health check complete" >&3
+            exec 3<&-
+            exec 3>&-
+        ' 2>/dev/null && echo "✅ Server responsive" || echo "⚠️  Server response slow/failed"
+    fi
+    
+    echo -n "."
+    sleep 1
+done
+
+echo
+echo "✅ Server survived 45-second stress test!"
+
+echo "Testing graceful shutdown after stress..."
+kill -TERM $SERVER_PID
+
+# Wait for shutdown
+TIMEOUT=15
+for i in $(seq 1 $TIMEOUT); do
+    if ! kill -0 $SERVER_PID 2>/dev/null; then
+        echo "✅ Server shut down gracefully after stress test"
+        echo "=== Stress Test Passed ==="
+        exit 0
+    fi
+    sleep 1
+done
+
+echo "⚠️  Server did not shut down gracefully, forcing..."
+kill -9 $SERVER_PID 2>/dev/null
+echo "=== Stress Test Completed with Warning ==="