Handle absent media and selection state safely

tests/reactions.rs

@@ -2,8 +2,12 @@
 
 mod helpers;
 
+use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
+use helpers::app_builder::TestAppBuilder;
 use helpers::fake_tdclient::FakeTdClient;
 use helpers::test_data::TestMessageBuilder;
+use tele_tui::config::Command;
+use tele_tui::input::handlers::chat::handle_message_selection;
 use tele_tui::types::ChatId;
 
 /// Test: Добавление реакции к сообщению
@@ -32,6 +36,25 @@ async fn test_add_reaction_to_message() {
     assert!(messages[0].reactions()[0].is_chosen);
 }
 
+#[tokio::test]
+async fn test_react_without_selected_chat_does_not_panic() {
+    let msg = TestMessageBuilder::new("React safely", 100).build();
+    let mut app = TestAppBuilder::new()
+        .with_message(123, msg)
+        .selecting_message(0)
+        .build();
+    *app.td_client.current_chat_id.lock().unwrap() = Some(123);
+
+    handle_message_selection(
+        &mut app,
+        KeyEvent::new(KeyCode::Esc, KeyModifiers::NONE),
+        Some(Command::ReactMessage),
+    )
+    .await;
+
+    assert_eq!(app.error_message.as_deref(), Some("Чат не выбран"));
+}
+
 /// Test: Удаление реакции (toggle) - вторичное нажатие
 #[tokio::test]
 async fn test_toggle_reaction_removes_it() {