it is possible now to load an easy game from file to the model and testing this

src/main/java/src/Model.java

@@ -14,6 +14,8 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Scanner;
 
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 public class Model {
 
     private static int SIZE = 9;
@@ -40,6 +42,7 @@ public class Model {
         return difficulty;
     }
 
+    //1=easy, 2=medium, 3=hard
     public void setDifficulty(int difficulty) {
         this.difficulty = difficulty;
     }
@@ -121,15 +124,35 @@ public class Model {
 
     }
 
-    public void loadNewEasy() {
-        String s = loadAllData();
-        JSONParser jsonParser = new JSONParser();
+    public void loadNewEasy(int p) {
+
+        String data = Model.loadAllData();
+
+        setDifficulty(1);
+
+        JSONParser parser = new JSONParser();
+        JSONObject jsonObject = null;
+
         try {
-            JSONObject parse = (JSONObject) jsonParser.parse(s);
+            jsonObject = (JSONObject) parser.parse(data);
         } catch (ParseException e) {
-            throw new RuntimeException(e);
+            assertTrue(false, "parsing went wrong");
         }
 
+        try {
+
+            JSONArray easyGame = (JSONArray) jsonObject.get("easyGame");
+
+            JSONObject jsonObjectEasyGame = (JSONObject) easyGame.get(p);
+
+//            Model modelEasy = new Model(jsonObjectEasyGame, new GameField(360));
+//            System.out.println(modelEasy);
+
+            jsonToModel(jsonObjectEasyGame);
+
+        } catch (IndexOutOfBoundsException e) {
+            throw e;
+        }
     }
 
     public void loadNewMedium() {
@@ -301,7 +324,6 @@ public class Model {
         JSONArray jsonArrayHard = new JSONArray();
         jsonArrayHard.add(jsonObjectHard);
 
-
         jsonObjectRoot.put("easyGame", jsonArrayEasy);
         jsonObjectRoot.put("mediumGame", jsonArrayMedium);
         jsonObjectRoot.put("hardGame", jsonArrayHard);

src/test/java/ModelTest.java

@@ -217,7 +217,11 @@ public class ModelTest extends MainFrame {
 
     @Test
     public void test_loadNewEasy() {
-        GameField gameField = new GameField(360);
+        Model model = new Model(new GameField(360));
+        model.loadNewEasy(0);
+        int field = model.getField(0, 0);
+        assertEquals(1, field, "the first game has a 1 at (0,0)");
+        System.out.println(model);
     }
 
     @Test