diff --git a/src/card.rs b/src/card.rs
index 531206a..879b8e6 100644
--- a/src/card.rs
+++ b/src/card.rs
@@ -248,4 +248,44 @@ mod test {
     assert_eq!(stacked, expected);
     assert!(doors.is_none());
   }
+
+  #[test]
+  fn cut_octagon() {
+    todo!();
+  }
+
+  #[test]
+  fn cut_triangle() {
+    todo!();
+  }
+
+  #[test]
+  fn flip_triangle_vertical() {
+    todo!();
+  }
+
+  #[test]
+  fn flip_triangle_horizontal() {
+    todo!();
+  }
+
+  #[test]
+  fn transpose_vertical() {
+    todo!();
+  }
+
+  #[test]
+  fn transpose_horizontal(){
+    todo!();
+  }
+  
+  #[test]
+  fn rotate_clockwise() {
+    todo!();
+  }
+
+  #[test]
+  fn rotate_counter_clockwise() {
+    todo!();
+  }
 }