Add corner cases in board to isReachable

eloylp · Nov 17, 2019 · e3011de · e3011de
1 parent 921a8a0
commit e3011de
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/main.go b/main.go
@@ -45,7 +45,7 @@ func IsReachableNeighbour(board Board, x, y, ox, oy int) bool {
 	if y+oy > len(board)-1 || y+oy < 0 {
 		return false
 	}
-	if x+ox > len(board[y]) || x+ox < 0 {
+	if x+ox > len(board[y])-1 || x+ox < 0 {
 		return false
 	}
 	return true

diff --git a/main_test.go b/main_test.go
@@ -56,6 +56,9 @@ func TestIsReachableNeighbour(t *testing.T) {
 			{0, 0, -1, 0, false},
 			{0, 0, 0, -1, false},
 			{0, 3, 0, 1, false},
+			{3, 0, 1, 0, false},
+			{3, 3, 1, 0, false},
+			{3, 3, 1, 1, false},
 		}
 	}