worked on BlankFieldTest and fixed ActionHandlerTest

src/test/java/ActionHandlerTest.java

@@ -1,3 +1,4 @@
+import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.mockito.MockedStatic;
 import org.mockito.Mockito;
@@ -24,6 +25,12 @@ static void initOnce() {
         gameFrameClass = mockStatic(GameFrame.class);
     }
 
+    @AfterAll
+    static void afterAll() {
+        gameClass.close();
+        gameFrameClass.close();
+    }
+
     @Test
     void PlayerTurn_hasPoints() {
         Player player = Mockito.mock(Player.class);

src/test/java/BlankFieldTest.java

@@ -1,26 +1,57 @@
 import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
 
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
 
 class BlankFieldTest {
-    private BlankField field;
+    private BlankField blankField;
+    private static MockedStatic<Game> gameClass;
+    private static MockedStatic<GameFrame> gameFrameClass;
 
     @BeforeEach
     public void init() {
-        this.field = new BlankField();
+        this.blankField = new BlankField();
+    }
+
+    @BeforeAll
+    static void initOnce() {
+        gameClass = Mockito.mockStatic(Game.class);
+        gameFrameClass = mockStatic(GameFrame.class);
+    }
+
+    @AfterAll
+    static void afterAll() {
+        gameClass.close();
+        gameFrameClass.close();
     }
 
     @Test
     void GetReferenceID() {
-        this.field = new BlankField("refID");
+        this.blankField = new BlankField("refID");
+
+        assertEquals("refID", blankField.GetReferenceID());
+    }
+
+    @Test
+    void AcceptWater() {
+        Field field = mock(Field.class);
+
+        Game game = mock(Game.class);
+        gameClass.when(Game::Get).thenReturn(game);
+
+        assertTrue(blankField.AcceptWater(field));
 
-        assertEquals("refID", field.GetReferenceID());
+        verify(game).InceraseSaboteurPoints();
     }
 
     @Test 
     void CanAcceptPlayer() {
-        assertEquals(false, field.CanAcceptPlayer());
+        assertEquals(false, blankField.CanAcceptPlayer());
     }