added getCurrentState method for Board class with tests for detecting winner, draw or not finished game

src/main/java/Game/TicTacToe/Board.java

@@ -1,6 +1,7 @@
 package Game.TicTacToe;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 
 public class Board {
 
@@ -14,9 +15,10 @@ public class Board {
         DRAW,
         CIRCLEWIN,
         CROSSWIN,
-        NOTFINÌSHED
+        NOTFINISHED
     }
 
+    private ArrayList<int[]> winPatterns;
     private State[] states;
 
 
@@ -25,6 +27,15 @@ public class Board {
         for (int i = 0; i < states.length; i++) {
             states[i] = State.EMPTY;
         }
+        winPatterns = new ArrayList<>();
+        winPatterns.add(new int[]{1,1,1,0,0,0,0,0,0});
+        winPatterns.add(new int[]{0,0,0,1,1,1,0,0,0});
+        winPatterns.add(new int[]{0,0,0,0,0,0,1,1,1});
+        winPatterns.add(new int[]{1,0,0,1,0,0,1,0,0});
+        winPatterns.add(new int[]{0,1,0,0,1,0,0,1,0});
+        winPatterns.add(new int[]{0,0,1,0,0,1,0,0,1});
+        winPatterns.add(new int[]{0,0,1,0,1,0,1,0,0});
+        winPatterns.add(new int[]{1,0,0,0,1,0,0,0,1});
     }
 
 
@@ -106,7 +117,38 @@ public class Board {
 
     //Checkfull(draw), Checkwinner clear,neue Runde und Scoreboard
 
+    public CurrentState getCurrentState() {
 
+        int counterCross = 0;
+        int counterCircle = 0;
+
+        for (int[] pattern : winPatterns) {
+            counterCircle = 0;
+            counterCross = 0;
+            for (int i = 0; i < pattern.length; i++) {
+                if (pattern[i] == 1) {
+                    if (getStates()[i] == State.CIRCLE)
+                        counterCircle++;
+                    if (getStates()[i] == State.CROSS)
+                        counterCross++;
+                }
+            }
+            if (counterCircle >= 3)
+                return CurrentState.CIRCLEWIN;
+            if (counterCross >= 3)
+                return CurrentState.CROSSWIN;
+        }
+
+        //Not finished
+        for (int i = 0; i < getStates().length; i++) {
+            if (getStates()[i] == State.EMPTY) {
+                return CurrentState.NOTFINISHED;
+            }
+        }
+
+        //Draw
+        return CurrentState.DRAW;
+    }
 
     public static State[] convertSimpleToState(int[] temp) {
         if (temp.length != 9)

src/test/java/Game/TicTacToe/BoardTest.java

@@ -80,4 +80,49 @@ class BoardTest {
         assertTrue(Arrays.deepEquals(expected4, Board.convertSimpleToState(test4)));
         assertNull(Board.convertSimpleToState(test5));
     }
+
+    @Test
+    void getCurrentState() {
+        Board.State[] testArray = Board.convertSimpleToState(new int[]{2, 2, 2, 1, 0, 1, 1, 0, 0});
+        Board.State[] testArray2 = Board.convertSimpleToState(new int[]{1, 0, 2, 1, 2, 0, 1, 0, 2});
+        Board.State[] testArray3 = Board.convertSimpleToState(new int[]{1, 0, 2, 0, 1, 2, 0, 2, 1});
+        Board.State[] testArray4 = Board.convertSimpleToState(new int[]{0, 1, 2, 2, 1, 0, 0, 1, 2});
+        Board.State[] testArray5 = Board.convertSimpleToState(new int[]{1, 0, 0, 2, 2, 2, 1, 0, 1});
+        Board.State[] testArray6 = Board.convertSimpleToState(new int[]{2, 0, 1, 2, 1, 0, 1, 2, 0});
+        Board.State[] testArray7 = Board.convertSimpleToState(new int[]{0, 0, 1, 0, 2, 1, 2, 2, 1});
+        Board.State[] testArray8 = Board.convertSimpleToState(new int[]{1, 0, 0, 1, 1, 0, 2, 2, 2});
+
+        Board.State[] drawArray = Board.convertSimpleToState(new int[]{2, 1, 2, 1, 2, 1, 1, 2, 1});
+        Board.State[] drawArray2 = Board.convertSimpleToState(new int[]{2, 2, 1, 1, 1, 2, 2, 2, 1});
+        Board.State[] notFinishedArray = Board.convertSimpleToState(new int[]{2, 2, 1, 2, 0, 1, 0, 0, 0});
+
+        try {
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CROSSWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray2);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CIRCLEWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray3);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CIRCLEWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray4);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CIRCLEWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray5);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CROSSWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray6);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CIRCLEWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray7);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CIRCLEWIN);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), testArray8);
+            assertEquals(board.getCurrentState(), Board.CurrentState.CROSSWIN);
+
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), drawArray);
+            assertEquals(board.getCurrentState(), Board.CurrentState.DRAW);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), drawArray2);
+            assertEquals(board.getCurrentState(), Board.CurrentState.DRAW);
+            FieldSetter.setField(board, board.getClass().getDeclaredField("states"), notFinishedArray);
+            assertEquals(board.getCurrentState(), Board.CurrentState.NOTFINISHED);
+
+        } catch (NoSuchFieldException e) {
+            e.printStackTrace();
+        }
+    }
 }