src/test/java/ch/unibas/dmi/dbis/cs108/casono/client/ui/lobbyui/LobbyButtonGridManagerTest.java

@@ -0,0 +1,33 @@
+package ch.unibas.dmi.dbis.cs108.casono.client.ui.lobbyui;
+
+import javafx.scene.layout.GridPane;
+import org.junit.jupiter.api.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class LobbyButtonGridManagerTest {
+    LobbyButtonGridManager gridManager;
+    LobbyButtonTranslationManager translationManager;
+    GridPane gridPane;
+
+    @BeforeEach
+    void setUp() {
+        gridPane = new GridPane();
+        translationManager = new LobbyButtonTranslationManager();
+        translationManager.getButtonIdToLobbyId().clear();
+        translationManager.saveTranslation();
+        gridManager = new LobbyButtonGridManager(gridPane, translationManager);
+    }
+
+    @Test
+    void testCreateLobbyReturnsId() {
+        int lobbyId = gridManager.createLobby();
+        assertTrue(lobbyId > 0);
+    }
+
+    @Test
+    void testJoinLobbyPlaceholder() {
+        // check if exception is thrown
+        assertDoesNotThrow(() -> gridManager.joinLobby(123));
+    }
+}