From 525754409a68925405fd9c56f185eef1898a2fad Mon Sep 17 00:00:00 2001
From: Tobias Krause <tobias.krause@informatik.hs-fulda.de>
Date: Mon, 31 Jan 2022 14:45:06 +0100
Subject: [PATCH] tictactoe: added method countCharsInDiag

---
 .../java/de/tims/tictactoe/ai/AIHard.java     |  4 ++++
 .../java/de/tims/tictactoe/ai/AIHardTest.java | 21 +++++++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/src/main/java/de/tims/tictactoe/ai/AIHard.java b/src/main/java/de/tims/tictactoe/ai/AIHard.java
index 56ff489..df3c16a 100644
--- a/src/main/java/de/tims/tictactoe/ai/AIHard.java
+++ b/src/main/java/de/tims/tictactoe/ai/AIHard.java
@@ -77,4 +77,8 @@ public class AIHard implements TicTacToeAI {
 		
 		return count;
 	}
+	
+	public int countCharsInDiag(int index, char charToCount) {
+		return 0;
+	}
 }
diff --git a/src/test/java/de/tims/tictactoe/ai/AIHardTest.java b/src/test/java/de/tims/tictactoe/ai/AIHardTest.java
index f764772..5fdd8d6 100644
--- a/src/test/java/de/tims/tictactoe/ai/AIHardTest.java
+++ b/src/test/java/de/tims/tictactoe/ai/AIHardTest.java
@@ -88,11 +88,11 @@ class AIHardTest {
 	
 	@ParameterizedTest
 	@MethodSource("testCasesForCountCharsInCol")
-	void countCharsInColTest(String testName, char[][] board, int rowNum, char charToCount, int expectedResult) {
+	void countCharsInColTest(String testName, char[][] board, int colNum, char charToCount, int expectedResult) {
 		doReturn(board).when(gl).getBoard();
 		
 		AIHard ai = new AIHard(gl);
-		int realResult = ai.countCharsInCol(rowNum, charToCount);
+		int realResult = ai.countCharsInCol(colNum, charToCount);
 		
 		assertThat(realResult).describedAs(testName).isEqualTo(expectedResult);
 	}
@@ -105,5 +105,22 @@ class AIHardTest {
 						new char[][] { {'-', '-', '-'}, {'o', 'o', '-'}, {'-', '-', '-'} },
 						1, 'o', 1));
 	}
+	
+	@ParameterizedTest
+	@MethodSource("testCasesForCountCharsInDiag")
+	void countCharsInDiagTest(String testName, char[][] board, int diagNum, char charToCount, int expectedResult) {
+		doReturn(board).when(gl).getBoard();
+		
+		AIHard ai = new AIHard(gl);
+		int realResult = ai.countCharsInDiag(diagNum, charToCount);
+		
+		assertThat(realResult).describedAs(testName).isEqualTo(expectedResult);
+	}
+	
+	private static Stream<Arguments> testCasesForCountCharsInDiag() {
+		return Stream.of(Arguments.of("EmptyFieldReturns0", 
+						new char[][] { {'-', '-', '-'}, {'-', '-', '-'}, {'-', '-', '-'} },
+						0, 'o', 0));
+	}
 
 }