From 09f35464dfa5e03dfc3c0aca0515149c82b2608d Mon Sep 17 00:00:00 2001
From: Hank Stoever <hstove@gmail.com>
Date: Tue, 22 Oct 2024 10:49:19 -0700
Subject: [PATCH] feat: ensure new miner doesn't propose a block yet

---
 testnet/stacks-node/src/tests/signer/v0.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/testnet/stacks-node/src/tests/signer/v0.rs b/testnet/stacks-node/src/tests/signer/v0.rs
index 9f1e10dc69..92463e36e3 100644
--- a/testnet/stacks-node/src/tests/signer/v0.rs
+++ b/testnet/stacks-node/src/tests/signer/v0.rs
@@ -683,6 +683,11 @@ fn miner_wait_for_proposal() {
     })
     .expect("Timed out waiting for block proposal");
 
+    let proposals_before = signer_test
+        .running_nodes
+        .nakamoto_blocks_proposed
+        .load(Ordering::SeqCst);
+
     let mut block_proposal: Option<BlockProposal> = None;
 
     wait_for(30, || {
@@ -737,6 +742,16 @@ fn miner_wait_for_proposal() {
 
     TEST_IGNORE_ALL_BLOCK_PROPOSALS.lock().unwrap().take();
 
+    // Ensure that the new miner hasn't proposed any blocks yet
+    wait_for(10, || {
+        Ok(signer_test
+            .running_nodes
+            .nakamoto_blocks_proposed
+            .load(Ordering::SeqCst)
+            > proposals_before)
+    })
+    .expect_err("New miner proposed a block before we expected");
+
     // Now, generate a block response for each signer
     signer_test.spawned_signers.iter().for_each(|signer| {
         let sk = signer.config.stacks_private_key;