Merge #14931: test: mempool_persist: Verify prioritization is dumped correctly

fa30a0e test: mempool_persist: Verify prioritization is dumped correctly (MarcoFalke)

Pull request description:

Tree-SHA512: ef39c470cd418443741b55e9765ee84e0a87a44e7756f88dea86df9b4d37a121a4fbcb97976fbe4693692691650fb1196093b7dadd3922359eb4720845d28f05

Author: MarcoFalke

test/functional/mempool_persist.py

@@ -42,6 +42,7 @@
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_raises_rpc_error, wait_until
 
+
 class MempoolPersistTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 3
@@ -60,14 +61,21 @@ def run_test(self):
 
         self.log.debug("Send 5 transactions from node2 (to its own address)")
         for i in range(5):
-            self.nodes[2].sendtoaddress(self.nodes[2].getnewaddress(), Decimal("10"))
+            last_txid = self.nodes[2].sendtoaddress(self.nodes[2].getnewaddress(), Decimal("10"))
         node2_balance = self.nodes[2].getbalance()
         self.sync_all()
 
         self.log.debug("Verify that node0 and node1 have 5 transactions in their mempools")
         assert_equal(len(self.nodes[0].getrawmempool()), 5)
         assert_equal(len(self.nodes[1].getrawmempool()), 5)
 
+        self.log.debug("Prioritize a transaction on node0")
+        fees = self.nodes[0].getmempoolentry(txid=last_txid)['fees']
+        assert_equal(fees['base'], fees['modified'])
+        self.nodes[0].prioritisetransaction(txid=last_txid, fee_delta=1000)
+        fees = self.nodes[0].getmempoolentry(txid=last_txid)['fees']
+        assert_equal(fees['base'] + Decimal('0.00001000'), fees['modified'])
+
         self.log.debug("Stop-start the nodes. Verify that node0 has the transactions in its mempool and node1 does not. Verify that node2 calculates its balance correctly after loading wallet transactions.")
         self.stop_nodes()
         # Give this node a head-start, so we can be "extra-sure" that it didn't load anything later
@@ -81,6 +89,10 @@ def run_test(self):
         # The others have loaded their mempool. If node_1 loaded anything, we'd probably notice by now:
         assert_equal(len(self.nodes[1].getrawmempool()), 0)
 
+        self.log.debug('Verify prioritization is loaded correctly')
+        fees = self.nodes[0].getmempoolentry(txid=last_txid)['fees']
+        assert_equal(fees['base'] + Decimal('0.00001000'), fees['modified'])
+
         # Verify accounting of mempool transactions after restart is correct
         self.nodes[2].syncwithvalidationinterfacequeue()  # Flush mempool to wallet
         assert_equal(node2_balance, self.nodes[2].getbalance())