From cbad2a9fae22e5531e3b4ff1b0a9d6a223826c71 Mon Sep 17 00:00:00 2001
From: Tyera Eulberg <tyera@solana.com>
Date: Thu, 6 Aug 2020 12:44:39 -0600
Subject: [PATCH] Add failing test: fresh transaction-status column shouldn't
 point at valid root 0

---
 ledger/src/blockstore.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/ledger/src/blockstore.rs b/ledger/src/blockstore.rs
index a66133a86b..be500c6222 100644
--- a/ledger/src/blockstore.rs
+++ b/ledger/src/blockstore.rs
@@ -6072,6 +6072,23 @@ pub mod tests {
         );
     }
 
+    #[test]
+    fn test_empty_transaction_status_contains_no_roots() {
+        let blockstore_path = get_tmp_ledger_path!();
+        let blockstore = Blockstore::open(&blockstore_path).unwrap();
+        blockstore.set_roots(&[0]).unwrap();
+        let index_iterator = blockstore
+            .transaction_status_cf
+            .iter(IteratorMode::From(
+                cf::TransactionStatus::as_index(0),
+                IteratorDirection::Forward,
+            ))
+            .unwrap();
+        for ((_, _, slot), _) in index_iterator {
+            assert!(!blockstore.is_root(slot));
+        }
+    }
+
     #[test]
     fn test_get_confirmed_signatures_for_address() {
         let blockstore_path = get_tmp_ledger_path!();