Squash into truncate_ bug fix commit

Co-authored-by: Daira Emma Hopwood <[email protected]>
nuttycom · Jul 18, 2023 · ea889d7 · ea889d7
1 parent 74a5a00
commit ea889d7
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/zcash_client_backend/src/data_api/scanning.rs b/zcash_client_backend/src/data_api/scanning.rs
@@ -137,6 +137,11 @@ mod tests {
         assert_eq!(r.truncate_start(7.into()), Some(scan_range(7, 8)));
         assert_eq!(r.truncate_start(8.into()), None);
         assert_eq!(r.truncate_start(9.into()), None);
+
+        let empty = scan_range(5, 5);
+        assert_eq!(empty.truncate_start(4.into()), None);
+        assert_eq!(empty.truncate_start(5.into()), None);
+        assert_eq!(empty.truncate_start(6.into()), None);
     }
 
     #[test]
@@ -149,6 +154,11 @@ mod tests {
         assert_eq!(r.truncate_end(6.into()), Some(scan_range(5, 6)));
         assert_eq!(r.truncate_end(5.into()), None);
         assert_eq!(r.truncate_end(4.into()), None);
+
+        let empty = scan_range(5, 5);
+        assert_eq!(empty.truncate_end(4.into()), None);
+        assert_eq!(empty.truncate_end(5.into()), None);
+        assert_eq!(empty.truncate_end(6.into()), None);
     }
 
     #[test]
@@ -167,5 +177,10 @@ mod tests {
         );
         assert_eq!(r.split_at(8.into()), None);
         assert_eq!(r.split_at(9.into()), None);
+
+        let empty = scan_range(5, 5);
+        assert_eq!(empty.split_at(4.into()), None);
+        assert_eq!(empty.split_at(5.into()), None);
+        assert_eq!(empty.split_at(6.into()), None);
     }
 }