add a horizontal player won test

src/test/c/Georg/test_tictactoe.c

@@ -200,4 +200,35 @@ void test_checkOnWin_vertically(void){
     TEST_ASSERT_EQUAL_INT( 1, result );
     TEST_ASSERT_EQUAL_INT( 1, result2 );
     TEST_ASSERT_EQUAL_INT( 1, result3 );
+}
+
+void test_negativ_checkOnWin_horizontally(void){
+    // arrange
+    bool board1[3][3]={
+            {1,0,0},
+            {0,0,0},
+            {0,0,0}
+    };
+
+    bool board2[3][3]={
+            {0,0,0},
+            {0,1,0},
+            {0,0,0}
+    };
+
+    bool board3[3][3]={
+            {0,0,0},
+            {0,0,0},
+            {0,0,1}
+    };
+
+    // act
+    bool result = playerHasWon( board1 );
+    bool result2 = playerHasWon( board2 );
+    bool result3 = playerHasWon( board3 );
+
+    // assert
+    TEST_ASSERT_EQUAL_INT( 0, result );
+    TEST_ASSERT_EQUAL_INT( 0, result2 );
+    TEST_ASSERT_EQUAL_INT( 0, result3 );
 }