diff --git a/.idea/misc.xml b/.idea/misc.xml
index 0319d5d..220cd6a 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="11" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="16" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/test/BoardTests.java b/test/BoardTests.java
index d7c6e76..d6fdcf8 100644
--- a/test/BoardTests.java
+++ b/test/BoardTests.java
@@ -36,12 +36,9 @@ public class BoardTests {
 
     @ParameterizedTest
     @MethodSource("getSetBoxTestData")
-    public void getSetBoxTests(Object[] args){
+    public void getSetBoxTests(int col, int row, boolean shouldThrow){
         Board b = new Board();
         Player p = Player.X;
-        int col = (int) args[0];
-        int row = (int) args[1];
-        boolean shouldThrow = (boolean) args[2];
 
         if (shouldThrow){
             Assertions.assertThrows(IndexOutOfBoundsException.class, ()-> b.setBox(col, row, p));
diff --git a/test/InputCheckerTests.java b/test/InputCheckerTests.java
index df90e9e..abaa9df 100644
--- a/test/InputCheckerTests.java
+++ b/test/InputCheckerTests.java
@@ -3,25 +3,26 @@ import model.InputChecker;
 import model.Player;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 
 import java.util.Random;
 import java.util.stream.Stream;
 
 public class InputCheckerTests {
-    public static Stream<Object[]> validIndexTestData() {
+    public static Stream<Arguments> validIndexTestData() {
         int val = RandomSingleton.get.nextInt();
         boolean isValid = val >= 1 && val <= 9;
         return Stream.of(
-                new Object[]{1, true},
-                new Object[]{9, true},
-                new Object[]{-3, false},
-                new Object[]{15, false},
-                new Object[]{val, isValid}
+                Arguments.of(1, true),
+                Arguments.of(1, true),
+                Arguments.of(-3, false),
+                Arguments.of(15, false),
+                Arguments.of(val, isValid)
         );
     }
 
-    public static Stream<Object[]> boxOccupiedTestData() {
+    public static Stream<Arguments> boxOccupiedTestData() {
         Board b = randomBoard();
         int index = RandomSingleton.get.nextInt(9) + 1;
         boolean isValid = true;
@@ -32,12 +33,12 @@ public class InputCheckerTests {
                     isValid = false;
 
         return Stream.of(
-                new Object[]{new Board(), 1, true},
-                new Object[]{fullBoard(), 1, false},
-                new Object[]{topLeftBoard(), 1, false},
-                new Object[]{topLeftBoard(), 3, true},
-                new Object[]{b, index, isValid}
-        );
+                Arguments.of(new Board(), 1,  true),
+                Arguments.of(fullBoard(), 1, false),
+                Arguments.of(topLeftBoard(), 1, false),
+                Arguments.of(topLeftBoard(), 3, true),
+                Arguments.of(b, index, isValid
+                ));
     }
 
     private static Board fullBoard(){
@@ -71,20 +72,15 @@ public class InputCheckerTests {
 
     @ParameterizedTest
     @MethodSource("validIndexTestData")
-    public void validIndexTest(Object[] args){
-        Board b = new Board();
-        int val = (int) args[0];
-        boolean expected = (boolean) args[1];
-        boolean actual = new InputChecker().isInputValid(b, val);
-        Assertions.assertEquals(expected, actual);
+    public void validIndexTest(int val,boolean expected){
+       Board b = new Board();
+       boolean actual = new InputChecker().isInputValid(b, val);
+       Assertions.assertEquals(expected, actual);
     }
 
     @ParameterizedTest
     @MethodSource("boxOccupiedTestData")
-    public void boxOccupiedTest(Object[] args){
-        Board b = (Board) args[0];
-        int input = (int) args[1];
-        boolean expected = (boolean) args[2];
+    public void boxOccupiedTest(Board b, int input, boolean expected){
         boolean actual = new InputChecker().isInputValid(b, input);
         Assertions.assertEquals(expected, actual);
     }
diff --git a/test/WinCheckerTests.java b/test/WinCheckerTests.java
index e7242b2..2a9bb0c 100644
--- a/test/WinCheckerTests.java
+++ b/test/WinCheckerTests.java
@@ -16,11 +16,11 @@ public class WinCheckerTests {
 
     public static Stream<Arguments> isGameOverTestData() {
         Board randomBoard = new Board();
-        Player currentBox;
+        Player currentBox, p;
         for (int i = 1; i <= 3; ++i)
             for (int j = 1; j <= 3; ++j) {
                 int rand = rng.nextInt(3);
-                Player p = switch (rand){
+                p = switch (rand) {
                     case 1 -> Player.X;
                     case 2 -> Player.O;
                     default -> null;
@@ -169,18 +169,14 @@ public class WinCheckerTests {
 
     @ParameterizedTest
     @MethodSource("isGameOverTestData")
-    public void isGameOverTest(Object[] args){
-        Board b = (Board) args[0];
-        boolean expected = (boolean) args[1];
+    public void isGameOverTest(Board b, boolean expected){
         boolean actual = new WinChecker().isGameOver(b);
         Assertions.assertEquals(expected, actual);
     }
 
     @ParameterizedTest
     @MethodSource("getWinnerTestNormalData")
-    public void getWinnerTestNormal(Object[] args){
-        Board b = (Board) args[0];
-        Player expected = (Player) args[1];
+    public void getWinnerTestNormal(Board b, Player expected){
         Player actual = new WinChecker().getWinner(b);
         Assertions.assertEquals(expected, actual);
     }