Fix disconnect notifiers

2026-09-28 13:01:03 +00:00
parent daac11472d
commit fac6ac8bfb
5 changed files with 70 additions and 3 deletions
@@ -335,4 +335,24 @@ public class Mock3270ServerIntegrationTest {
        }
        assertTrue(receivedWontOrDontTn3270e, "Server should have received Telnet de-negotiation for TN3270E");
    }
+
+    @Test
+    public void testServerSideDisconnectTransitionsClientToNotConnectedAndClosesSocket() throws Exception {
+        ConnectionConfig config = new ConnectionConfig("127.0.0.1", server.getPort(), TerminalModel.IBM_3279_2);
+        client = new Telnet3270Client(config);
+        assertTrue(client.connect(8000));
+        assertTrue(server.waitForHandshake(5, TimeUnit.SECONDS));
+        waitForState(client, ConnectionState.CONNECTED_TN3270E, 5000);
+        assertTrue(client.isConnected());
+
+        // Server drops connection (host disconnect)
+        server.disconnectClient();
+
+        // Wait for client to detect disconnect
+        waitForState(client, ConnectionState.NOT_CONNECTED, 5000);
+        assertEquals(ConnectionState.NOT_CONNECTED, client.getConnectionState());
+        assertFalse(client.isConnected(), "Client must report isConnected() == false after host disconnect");
+        assertNotNull(client.getConnection());
+        assertFalse(client.getConnection().isConnected(), "TelnetConnection must report isConnected() == false after host disconnect");
+    }
 }