test: created test for LobbyRunner

Server/src/test/java/uulm/teamname/marvelous/server/lobbymanager/LobbyRunnerTest.java

@@ -1,28 +1,67 @@
 package uulm.teamname.marvelous.server.lobbymanager;
 
+import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+import uulm.teamname.marvelous.server.Server;
 
+import java.lang.reflect.InvocationTargetException;
 import java.util.concurrent.*;
 
 import static org.mockito.Mockito.*;
 import static org.junit.jupiter.api.Assertions.*;
+import static org.assertj.core.api.Assertions.*;
 
 class LobbyRunnerTest {
 
     LobbyConnection connection;
+    LobbyRunner lobbyRunner;
+
+    MockedStatic<Server> serverMockedStatic;
 
     @BeforeEach
-    void setUp() {
+    void setUp()
+            throws NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException {
         connection = mock(LobbyConnection.class);
+        // when(connection.gameID).thenReturn("/SomeGameID");
 
+        var constructor = LobbyRunner.class.getDeclaredConstructor();
+        constructor.setAccessible(true);
+
+        lobbyRunner = constructor.newInstance();
+
+        serverMockedStatic = mockStatic(Server.class);
+        serverMockedStatic.when(Server::getMaxLobbies).thenReturn(1);
+    }
+
+    @AfterEach
+    void tearDown() {
+        serverMockedStatic.close();
+    }
+
+
+    // It seems very impractical indeed to properly to check if another thread executed this, so I won't
+    @Test
+    void lobbyGetsStartedTest() {
+        lobbyRunner.startLobby(connection);
+        verify(connection).run();
     }
 
     @Test
-    void lobbyGetsStartedTest() {
-
+    void canAddLobbyTest() {
+        assertThat(lobbyRunner.canAddLobby()).isTrue();
+        lobbyRunner.startLobby(connection);
+        assertThat(lobbyRunner.canAddLobby()).isFalse();
+    }
 
+    @Test
+    void removeLobbyRemovesLobbyAndSetsTerminationFlag() {
+        lobbyRunner.startLobby(connection);
     }
 
 }