수정본

tests/test_db_connection.py

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+#!/usr/bin/env python3
+"""
+DB 연결 테스트 스크립트
+실행: python test_db_connection.py
+"""
+import asyncio
+import asyncpg
+
+
+async def test_connection():
+    print("🔵 Testing PostgreSQL connection...")
+    print("Host: shium.net")
+    print("Port: 55432")
+    print("Database: stock")
+    print("User: stock")
+    print()
+    
+    try:
+        # 직접 asyncpg로 연결 시도
+        conn = await asyncpg.connect(
+            host='shium.net',
+            port=55432,
+            database='stock',
+            user='stock',
+            password='Tjduddn!!12',
+            timeout=10,
+            ssl=False,
+        )
+        
+        print("✅ Connection successful!")
+        
+        # 간단한 쿼리 테스트
+        version = await conn.fetchval('SELECT version()')
+        print(f"PostgreSQL version: {version}")
+        
+        # 테이블 목록 조회
+        tables = await conn.fetch("""
+            SELECT table_name 
+            FROM information_schema.tables 
+            WHERE table_schema = 'public'
+        """)
+        
+        print(f"\nTables in database:")
+        for table in tables:
+            print(f"  - {table['table_name']}")
+        
+        await conn.close()
+        print("\n✅ Connection test completed successfully!")
+        
+    except asyncpg.PostgresConnectionError as e:
+        print(f"❌ PostgreSQL connection error: {e}")
+    except ConnectionRefusedError as e:
+        print(f"❌ Connection refused: {e}")
+        print("Possible causes:")
+        print("  1. PostgreSQL server is not running")
+        print("  2. Firewall blocking port 55432")
+        print("  3. PostgreSQL not configured to accept external connections")
+        print("  4. Need SSH tunnel or VPN to access the server")
+    except TimeoutError as e:
+        print(f"❌ Connection timeout: {e}")
+        print("The server is not responding. Check network connectivity.")
+    except Exception as e:
+        print(f"❌ Unexpected error: {e}")
+        import traceback
+        traceback.print_exc()
+
+
+if __name__ == "__main__":
+    asyncio.run(test_connection())