diff --git a/src/lib.rs b/src/lib.rs
index e1cb174..29488c4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1734,4 +1734,33 @@ r#"[
         assert_eq!(grid.remove_col(5), None);
         assert_eq!(grid.remove_col(1), Some(vec![2, 4]));
     }
+    #[test]
+    fn remove_col() {
+        let mut grid = grid![[1,2,3,4][5,6,7,8][9,10,11,12][13,14,15,16]];
+        assert_eq![grid.remove_col(3), Some(vec![4, 8, 12, 16])];
+        assert_eq![grid.remove_col(0), Some(vec![1, 5, 9, 13])];
+        assert_eq![grid.remove_col(1), Some(vec![3, 7, 11, 15])];
+        assert_eq![grid.remove_col(0), Some(vec![2, 6, 10, 14])];
+        assert_eq![grid.remove_col(0), None];
+    }
+    #[test]
+    fn remove_row() {
+        let mut grid = grid![[1,2][3,4][5,6]];
+        assert_eq![grid.remove_row(1), Some(vec![3, 4])];
+        assert_eq![grid.remove_row(0), Some(vec![1, 2])];
+        assert_eq![grid.remove_row(0), Some(vec![5, 6])];
+        assert_eq![grid.remove_row(0), None];
+    }
+    #[test]
+    fn remove_row_out_of_bound(){
+        let mut grid = grid![[1, 2][3, 4]];
+        assert_eq![grid.remove_row(5), None];
+        assert_eq![grid.remove_row(1), Some(vec![3, 4])];
+    }
+    #[test]
+    fn remove_col_out_of_bound(){
+        let mut grid = grid![[1, 2][3, 4]];
+        assert_eq!(grid.remove_col(5), None);
+        assert_eq!(grid.remove_col(1), Some(vec![2, 4]));
+    }
 }