From 276768a82600045a2f95767d5d5c6dbb72873753 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Drwi=C4=99ga?= <tomasz@ethcore.io>
Date: Thu, 10 Mar 2016 11:11:59 +0100
Subject: [PATCH] Failing test case for #656

---
 sync/src/transaction_queue.rs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/sync/src/transaction_queue.rs b/sync/src/transaction_queue.rs
index 3e0d931b5..38e70d1fc 100644
--- a/sync/src/transaction_queue.rs
+++ b/sync/src/transaction_queue.rs
@@ -541,6 +541,28 @@ mod test {
 		assert_eq!(top[0], tx);
 	}
 
+	#[test]
+	fn should_correctly_update_futures_when_removing() {
+		// given
+		let prev_nonce = |a: &Address| default_nonce(a) - U256::one();
+		let next2_nonce = |a: &Address| default_nonce(a) + U256::from(2);
+
+		let mut txq = TransactionQueue::new();
+
+		let (tx, tx2) = new_txs(U256::from(1));
+		txq.add(tx.clone(), &prev_nonce);
+		txq.add(tx2.clone(), &prev_nonce);
+		assert_eq!(txq.status().future, 2);
+
+		// when
+		txq.remove(&tx.hash(), &next2_nonce);
+		// should remove both transactions since they are not valid
+
+		// then
+		assert_eq!(txq.status().pending, 0);
+		assert_eq!(txq.status().future, 0);
+	}
+
 	#[test]
 	fn should_move_transactions_if_gap_filled() {
 		// given