Add bip 380 checksum test vectors

Add test vectors from BIP-380 that cover the checksum and character set,
both valid and invalid.

src/descriptor/checksum.rs

@@ -221,4 +221,34 @@ mod test {
  format!("Invalid descriptor: Invalid character in checksum: '{}'", sparkle_heart)
  );
  }
+
+ #[test]
+ fn bip_380_test_vectors_checksum_and_character_set_valid() {
+ let tcs = vec![
+ "raw(deadbeef)#89f8spxm", // Valid checksum.
+ "raw(deadbeef)", // No checksum.
+ ];
+ for tc in tcs {
+ if verify_checksum(tc).is_err() {
+ panic!("false negative: {}", tc)
+ }
+ }
+ }
+
+ #[test]
+ fn bip_380_test_vectors_checksum_and_character_set_invalid() {
+ let tcs = vec![
+ "raw(deadbeef)#", // Missing checksum.
+ "raw(deadbeef)#89f8spxmx", // Too long checksum.
+ "raw(deadbeef)#89f8spx", // Too short checksum.
+ "raw(dedbeef)#89f8spxm", // Error in payload.
+ "raw(deadbeef)##9f8spxm", // Error in checksum.
+ "raw(Ü)#00000000", // Invalid characters in payload.
+ ];
+ for tc in tcs {
+ if verify_checksum(tc).is_ok() {
+ panic!("false positive: {}", tc)
+ }
+ }
+ }
 }