Reintroduce snapshots for invalid TXIDs

zebra-rpc/src/methods/tests/snapshot.rs

@@ -451,6 +451,13 @@ async fn test_rpc_response_data_for_network(network: &Network) {
     settings.bind(|| insta::assert_json_snapshot!(format!("getrawtransaction_unknown_txid"), rsp));
     mempool.expect_no_requests().await;
 
+    // `getrawtransaction` with an invalid TXID
+    let rsp = rpc
+        .get_raw_transaction("aBadC0de".to_owned(), Some(1))
+        .await;
+    settings.bind(|| insta::assert_json_snapshot!(format!("getrawtransaction_invalid_txid"), rsp));
+    mempool.expect_no_requests().await;
+
     // `getaddresstxids`
     let get_address_tx_ids = rpc
         .get_address_tx_ids(GetAddressTxIdsRequest {

zebra-rpc/src/methods/tests/snapshots/getrawtransaction_invalid_txid@mainnet_10.snap

@@ -0,0 +1,11 @@
+---
+source: zebra-rpc/src/methods/tests/snapshot.rs
+expression: rsp
+snapshot_kind: text
+---
+{
+  "Err": {
+    "code": -5,
+    "message": "Invalid string length"
+  }
+}

zebra-rpc/src/methods/tests/snapshots/getrawtransaction_invalid_txid@testnet_10.snap

@@ -0,0 +1,11 @@
+---
+source: zebra-rpc/src/methods/tests/snapshot.rs
+expression: rsp
+snapshot_kind: text
+---
+{
+  "Err": {
+    "code": -5,
+    "message": "Invalid string length"
+  }
+}

zebra-rpc/src/methods/tests/vectors.rs

@@ -728,7 +728,7 @@ async fn rpc_getrawtransaction() {
             let rpc_req = rpc.get_raw_transaction(tx.hash().encode_hex(), Some(0u8));
 
             let (rsp, _) = futures::join!(rpc_req, mempool_req);
-            let get_tx = rsp.expect("We should have a ");
+            let get_tx = rsp.expect("we should have a `GetRawTransaction` struct");
 
             if let GetRawTransaction::Raw(raw_tx) = get_tx {
                 assert_eq!(raw_tx.as_ref(), tx.zcash_serialize_to_vec().unwrap());