test: revive feature_sporks.py

test/functional/feature_sporks.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+# Copyright (c) 2018-2023 The Dash Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+from test_framework.test_framework import BitcoinTestFramework
+
+'''
+'''
+
+class SporkTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 3
+        self.setup_clean_chain = True
+        self.disable_mocktime = True
+        self.extra_args = [["-sporkkey=cP4EKFyJsHT39LDqgdcB43Y3YXjNyjb5Fuas1GQSeAtjnZWmZEQK"], [], []]
+
+    def setup_network(self):
+        self.setup_nodes()
+        # connect only 2 first nodes at start
+        self.connect_nodes(0, 1)
+
+    def get_test_spork_value(self, node):
+        # use InstantSend spork for tests
+        return node.spork()['SPORK_2_INSTANTSEND_ENABLED']
+
+    def set_test_spork_value(self, node, value):
+        # use InstantSend spork for tests
+        node.sporkupdate("SPORK_2_INSTANTSEND_ENABLED", value)
+
+    def run_test(self):
+        spork_default_value = self.get_test_spork_value(self.nodes[0])
+        # check test spork default state matches on all nodes
+        assert self.get_test_spork_value(self.nodes[1]) == spork_default_value
+        assert self.get_test_spork_value(self.nodes[2]) == spork_default_value
+
+        # check spork propagation for connected nodes
+        spork_new_value = spork_default_value + 1
+        self.set_test_spork_value(self.nodes[0], spork_new_value)
+        self.wait_until(lambda: self.get_test_spork_value(self.nodes[1]) == spork_new_value, timeout=10)
+
+        # restart nodes to check spork persistence
+        self.stop_node(0)
+        self.stop_node(1)
+        self.start_node(0)
+        self.start_node(1)
+        assert self.get_test_spork_value(self.nodes[0]) == spork_new_value
+        assert self.get_test_spork_value(self.nodes[1]) == spork_new_value
+
+        # Generate one block to kick off masternode sync, which also starts sporks syncing for node2
+        self.nodes[1].generate(1)
+
+        # connect new node and check spork propagation after restoring from cache
+        self.connect_nodes(1, 2)
+        self.wait_until(lambda: self.get_test_spork_value(self.nodes[2]) == spork_new_value, timeout=10)
+
+if __name__ == '__main__':
+    SporkTest().main()