From 6c9fc338d29124685d6381b1a8e8ced94248bd5f Mon Sep 17 00:00:00 2001
From: Felix Detig <fdetig@googlemail.com>
Date: Fri, 11 Feb 2022 23:39:05 +0100
Subject: [PATCH] =?UTF-8?q?TicTacToeBrett.Set=20gibt=20bei=20ung=C3=BCltig?=
 =?UTF-8?q?em=20Index=20false=20zur=C3=BCck=20und=20ver=C3=A4ndert=20das?=
 =?UTF-8?q?=20Brett=20nicht?=
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---
 .../MiniGames/Shared/Models/TicTacToeBrett.cs | 11 +++++++++--
 .../MiniGamesTests/TicTacToeBrettTest.cs      | 19 +++++++++++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs b/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs
index 460e7f2..e0dfb2b 100644
--- a/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs
+++ b/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs
@@ -45,9 +45,16 @@ namespace MiniGames.Shared.Models
         {
             int x = pos / 3;
             int y = pos % 3;
-
-            if (Felder[x, y] != -1)
+            
+            try
+            {
+                if (Felder[x, y] != -1)
+                    return false;
+            }
+            catch (IndexOutOfRangeException e)
+            {
                 return false;
+            }
 
             Felder[x, y] = wert;
 
diff --git a/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs b/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs
index ac787a9..3c70b96 100644
--- a/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs
+++ b/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs
@@ -62,6 +62,25 @@ namespace MiniGamesTests
             Assert.True(brett.Gleich(erwartetesBrett));
         }
 
+        [Theory]
+        [InlineData(-1)]
+        [InlineData(9)]
+        public void Set_OutOfBoundsTest(int pos)
+        {
+            // arrange
+            TicTacToeBrett brett = new();
+            TicTacToeBrett erwartetesBrett = new();
+            int wert = 0;
+            bool erwartetGesetzt = false;
+
+            // act
+            bool erhaltenGesetzt = brett.Set(pos, wert);
+
+            // assert
+            Assert.Equal(erwartetGesetzt, erhaltenGesetzt);
+            Assert.True(brett.Gleich(erwartetesBrett));
+        }
+
         [Fact]
         public void Gleich_LeereBretterGleichTest()
         {