test: Avoid intermittent timeout in p2p_headers_sync_with_minchainwork.py

Author: MarcoFalke

test/functional/p2p_headers_sync_with_minchainwork.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2019-2022 The Bitcoin Core developers
+# Copyright (c) 2019-present The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test that we reject low difficulty headers to prevent our block tree from filling up with useless bloat"""
@@ -21,6 +21,8 @@
 
 from test_framework.util import assert_equal
 
+import time
+
 NODE1_BLOCKS_REQUIRED = 15
 NODE2_BLOCKS_REQUIRED = 2047
 
@@ -48,6 +50,10 @@ def reconnect_all(self):
         self.connect_nodes(0, 2)
         self.connect_nodes(0, 3)
 
+    def mocktime_all(self, time):
+        for n in self.nodes:
+            n.setmocktime(time)
+
     def test_chains_sync_when_long_enough(self):
         self.log.info("Generate blocks on the node with no required chainwork, and verify nodes 1 and 2 have no new headers in their headers tree")
         with self.nodes[1].assert_debug_log(expected_msgs=["[net] Ignoring low-work chain (height=14)"]), self.nodes[2].assert_debug_log(expected_msgs=["[net] Ignoring low-work chain (height=14)"]), self.nodes[3].assert_debug_log(expected_msgs=["Synchronizing blockheaders, height: 14"]):
@@ -149,7 +155,9 @@ def test_large_reorgs_can_succeed(self):
 
         self.reconnect_all()
 
+        self.mocktime_all(int(time.time()))  # Temporarily hold time to avoid internal timeouts
         self.sync_blocks(timeout=300) # Ensure tips eventually agree
+        self.mocktime_all(0)
 
 
     def run_test(self):