created a test, ConnectionIdLoggingTest, to verify that the connection ID is correctly included in the logs

Author: Tyreviel

src/test/java/org/juv25d/logging/ConnectionIdLoggingTest.java

@@ -0,0 +1,49 @@
+package org.juv25d.logging;
+
+import org.junit.jupiter.api.Test;
+import java.util.logging.Handler;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class ConnectionIdLoggingTest {
+
+    @Test
+    void logMessageShouldIncludeConnectionId() {
+        // Arrange
+        Logger logger = Logger.getLogger("test.connectionid");
+        logger.setUseParentHandlers(false);
+        
+        List<String> formattedMessages = new ArrayList<>();
+        ServerLogFormatter formatter = new ServerLogFormatter();
+        
+        Handler handler = new Handler() {
+            @Override
+            public void publish(LogRecord record) {
+                formattedMessages.add(formatter.format(record));
+            }
+            @Override
+            public void flush() {}
+            @Override
+            public void close() throws SecurityException {}
+        };
+        logger.addHandler(handler);
+
+        try {
+            String testId = "test-123";
+            LogContext.setConnectionId(testId);
+
+            // Act
+            logger.info("This is a test message");
+
+            // Assert
+            assertTrue(formattedMessages.get(0).contains("[" + testId + "]"), 
+                "Log message should contain the connection ID. Found: " + formattedMessages.get(0));
+        } finally {
+            LogContext.clear();
+        }
+    }
+}