diff --git a/test/Minesweeper/test_is_Valid_tile.c b/test/Minesweeper/test_is_Valid_tile.c
index 65082e2..503146d 100644
--- a/test/Minesweeper/test_is_Valid_tile.c
+++ b/test/Minesweeper/test_is_Valid_tile.c
@@ -21,4 +21,32 @@ void test_detect_not_valid_tile(void){
     TEST_ASSERT_EQUAL_INT(-1, result);//not valid tile
 }
 
+void test_detect_valid_tile_right(void){
+    /* arrange */
+    Minesweeper_Board board = initialize_minesweeper();
+    int tile = 0;
+    int direction = 5;
+    int result;
+
+    /* act */
+    result = is_Valid_tile(&board, tile, direction);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(1, result);//not valid tile
+}
+
+void test_detect_valid_tile_down(void){
+    /* arrange */
+    Minesweeper_Board board = initialize_minesweeper();
+    int tile = 0;
+    int direction = 4;
+    int result;
+
+    /* act */
+    result = is_Valid_tile(&board, tile, direction);
+
+    /* assert */
+    TEST_ASSERT_EQUAL_INT(0 + board.width, result);//not valid tile
+}
+
 #endif // TEST
\ No newline at end of file