Initial commit

node_modules/smtp-server/test/test-server-closing.js

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+// Test script for issue #181 fix
+'use strict';
+
+const SMTPServer = require('../lib/smtp-server').SMTPServer;
+const net = require('net');
+
+// Create SMTP server
+const server = new SMTPServer({
+    logger: {
+        info: console.info,
+        debug: console.debug,
+        error: console.error
+    },
+    onConnect: (session, callback) => {
+        console.log('Client connected with session:', session.id);
+        callback();
+    }
+});
+
+// Start server on a random port
+server.listen(0, '127.0.0.1', () => {
+    const address = server.server.address();
+    console.log(`SMTP Server listening on [${address.address}]:${address.port}`);
+
+    // Test the server shutdown behavior
+    console.log('Starting server shutdown test...');
+
+    // Connect a client
+    const client = net.createConnection(address.port, address.address, () => {
+        console.log('Client connected to server');
+
+        // Set up data handler
+        client.on('data', data => {
+            const response = data.toString();
+            console.log('Server response:', response);
+
+            // After receiving the greeting, initiate server shutdown and try to send a command
+            if (response.startsWith('220')) {
+                console.log('Initiating server shutdown...');
+
+                // Trigger server shutdown
+                server.close(() => {
+                    console.log('Server shutdown complete');
+                });
+
+                // Wait a moment and then try to send a command
+                setTimeout(() => {
+                    console.log('Sending HELO command during shutdown...');
+                    client.write('HELO example.com\r\n');
+
+                    // Wait for response and then close client
+                    setTimeout(() => {
+                        console.log('Test complete - client disconnecting');
+                        client.end();
+                    }, 500);
+                }, 100);
+            }
+        });
+    });
+
+    client.on('close', () => {
+        console.log('Client connection closed');
+        process.exit(0);
+    });
+
+    client.on('error', err => {
+        console.error('Client error:', err.message);
+    });
+});
+
+// Handle errors
+server.on('error', err => {
+    console.error('SMTP Server error:', err);
+});