Assert etched runestone is correct (#3354)

src/wallet/inscribe/batch.rs

@@ -426,6 +426,7 @@ impl Batch {
 
     let rune;
     let premine;
+    let runestone;
 
     if let Some(etch) = self.etch {
       let mut edicts = Vec::new();
@@ -455,7 +456,7 @@ impl Batch {
         destination = None;
       }
 
-      let script_pubkey = Runestone {
+      let inner = Runestone {
         cenotaph: false,
         claim: None,
         default_output: None,
@@ -476,8 +477,11 @@ impl Batch {
           spacers: etch.rune.spacers,
           symbol: Some(etch.symbol),
         }),
-      }
-      .encipher();
+      };
+
+      let script_pubkey = inner.encipher();
+
+      runestone = Some(inner);
 
       ensure!(
         script_pubkey.len() <= 82,
@@ -494,6 +498,7 @@ impl Batch {
     } else {
       premine = 0;
       rune = None;
+      runestone = None;
     }
 
     let commit_input = usize::from(self.parent_info.is_some()) + self.reveal_satpoints.len();
@@ -632,6 +637,18 @@ impl Batch {
     let total_fees =
       Self::calculate_fee(&unsigned_commit_tx, &utxos) + Self::calculate_fee(&reveal_tx, &utxos);
 
+    match (Runestone::from_transaction(&reveal_tx), runestone) {
+      (Some(actual), Some(expected)) => assert_eq!(
+        actual, expected,
+        "commit transaction runestone did not match expected runestone"
+      ),
+      (Some(_), None) => panic!("commit transaction contained runestone, but none was expected"),
+      (None, Some(_)) => {
+        panic!("commit transaction did not contain runestone, but one was expected")
+      }
+      (None, None) => {}
+    }
+
     let rune = rune.map(|(destination, rune, vout)| RuneInfo {
       destination: destination.map(|destination| uncheck(&destination)),
       location: vout.map(|vout| OutPoint {