tictactoe: bugfix: if row and col with same number each contain two chars of same player, col isnt ignored anymore

src/main/java/de/tims/tictactoe/ai/AIHard.java

@@ -52,12 +52,24 @@ public class AIHard implements TicTacToeAI {
 				
 				if (charsInRow == BOARD_SIZE - 1 || charsInCol == BOARD_SIZE - 1) {
 					for (int k = 0; k < BOARD_SIZE; k++) {
-						row = (charsInRow == BOARD_SIZE - 1) ? j : k;
-						col = (charsInRow == BOARD_SIZE - 1) ? k : j;
+						if (charsInRow == BOARD_SIZE - 1) {
+							row = j;
+							col = k;
+							
+							if (board[row][col] == EMPTY_CHAR) {
+								gl.setField(row, col, AI_CHAR);
+								return;
+							}
+						}
 						
-						if (board[row][col] == EMPTY_CHAR) {
-							gl.setField(row, col, AI_CHAR);
-							return;
+						if (charsInCol == BOARD_SIZE - 1) {
+							row = k;
+							col = j;
+							
+							if (board[row][col] == EMPTY_CHAR) {
+								gl.setField(row, col, AI_CHAR);
+								return;
+							}
 						}
 					}
 				}

src/test/java/de/tims/tictactoe/ai/AIHardTest.java

@@ -176,6 +176,17 @@ class AIHardTest {
 		verify(gl, times(1)).setField(2, 1, realChar);
 	}
 	
+	@Test
+	void ifRowAndColWithSameNumberContainEachContainTwoCharsDontIgnoreCol() {
+		char realChar = 'o';
+		doReturn(new char[][] { {'x', 'o', 'x'}, {'-', 'o', '-'}, {'o', 'x', 'x'} }).when(gl).getBoard();
+		
+		TicTacToeAI ai = new AIHard(gl);
+		ai.calculateNextMove();
+		
+		verify(gl, times(1)).setField(1, 2, realChar);
+	}
+	
 	@ParameterizedTest
 	@MethodSource("testCasesForCountCharsInRow")
 	void countCharsInRowTest(String testName, char[][] board, int rowNum, char charToCount, int expectedResult) {