wip: add basic test for GameState.snapshot

src/test/java/uulm/teamname/marvelous/gamelibrary/TupleTest.java

@@ -1,14 +1,13 @@
 package uulm.teamname.marvelous.gamelibrary;
 
-import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 class TupleTest {
     @Test
-    void basic() {
-        var a = new Tuple<Integer, Integer>(0, 1);
+    void basicTest() {
+        Tuple<Integer, Integer> a = new Tuple<>(0, 1);
         assertEquals((int) a.item1, 0);
         assertEquals((int) a.item2, 1);
     }

src/test/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameStateTest.java

@@ -0,0 +1,35 @@
+package uulm.teamname.marvelous.gamelibrary.gamelogic;
+
+import org.junit.jupiter.api.Test;
+import uulm.teamname.marvelous.gamelibrary.IntVector2;
+import uulm.teamname.marvelous.gamelibrary.entities.EntityID;
+import uulm.teamname.marvelous.gamelibrary.entities.EntityType;
+import uulm.teamname.marvelous.gamelibrary.entities.Rock;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class GameStateTest {
+    @Test
+    void testSnapshot() {
+        //TODO: test all properties in GameStateTest.testSnapshot
+
+        //base state
+        GameState state = new GameState(new IntVector2(10, 10));
+
+        //set up game
+        state.entities.addEntity(new Rock(new EntityID(0, EntityType.Rocks), new IntVector2(0, 0), 100));
+
+        //snapshot state
+        GameState snapshot = state.snapshot();
+
+        //modify snapshot and test for disconnection
+
+        snapshot.turnNumber = 10;
+        assertEquals(0, state.turnNumber, "Original's turn number should remain unchanged");
+
+        assertTrue(snapshot.entities.getEntities().hasNext(), "Snapshot should contain cloned entities");
+
+        ((Rock)snapshot.entities.getEntities().next()).decreaseHp(5);
+        assertEquals(100, ((Rock)state.entities.getEntities().next()).getHp(), "Original's rock entity hp should remain unchanged");
+    }
+}