valid tests save and getFromSave sudoku

app/src/test/java/sudoku/SudokuSerializerTest.java

@@ -8,6 +8,7 @@ import org.junit.jupiter.api.Test;
 
 import sudoku.io.SudokuPrinter;
 import sudoku.io.SudokuSerializer;
+import sudoku.structure.MultiDoku;
 import sudoku.structure.SudokuFactory;
 
 import java.util.Random;
@@ -17,20 +18,41 @@ public class SudokuSerializerTest {
     void testSerializeWithSize(int blockWidth, int blockHeight) {
         var sudoku = SudokuFactory.createBasicEmptyRectangleSudoku(blockWidth, blockHeight);
         JSONObject data = SudokuSerializer.serializeSudoku(sudoku);
-        SudokuSerializer.saveMultiDoku(sudoku);
-        //MultiDoku multiDoku = SudokuSerializer.deserializeSudoku(data);
-        //assertEquals(data, SudokuSerializer.serializeSudoku(multiDoku));
+        MultiDoku multiDoku = SudokuSerializer.deserializeSudoku(data);
+        assert(data.toString().equals(SudokuSerializer.serializeSudoku(multiDoku).toString()));
+    }
+
+    void testSaveWithSize(int blockWidth, int blockHeight) {
+        MultiDoku doku = SudokuFactory.createBasicEmptyRectangleSudoku(blockWidth, blockHeight);
+        int saveNumber = SudokuSerializer.saveMultiDoku(doku);
+        MultiDoku otherDoku = null;
+        try {
+            otherDoku = SudokuSerializer.getSavedMultiDoku(saveNumber);
+            assert (otherDoku != null);
+        } catch (Exception e) {
+            e.printStackTrace();
+            assert false;
+        }
+        assert(doku.equals(otherDoku));
     }
 
     @Test
     void testSerialize() {
-        int testCount = 5;
         Random r = new Random();
+        int testCount = 5;
         for (int i = 0; i < testCount; i++) {
             int blockWidth = r.nextInt(20) + 1;
             int blockHeight = r.nextInt(20) + 1;
             testSerializeWithSize(blockWidth, blockHeight);
         }
+        for (int i = 0; i < testCount; i++) {
+            int blockWidth = r.nextInt(20) + 1;
+            int blockHeight = r.nextInt(20) + 1;
+            testSaveWithSize(blockWidth, blockHeight);
+        }
+
+
+
     }
 
 }