test: validate behaviour of getpeerinfo last_inv_sequence and inv_to_send

Co-Authored-By: MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz>

Author: ajtowns

test/functional/p2p_leak_tx.py

@@ -12,6 +12,7 @@
 )
 from test_framework.wallet import MiniWallet
 
+import time
 
 class P2PNode(P2PDataStore):
     def on_inv(self, msg):
@@ -36,8 +37,24 @@ def test_tx_in_block(self):
 
         self.log.debug("Generate transaction and block")
         inbound_peer.last_message.pop("inv", None)
+
+        self.gen_node.setmocktime(int(time.time())) # pause time based activities
         wtxid = self.miniwallet.send_self_transfer(from_node=self.gen_node)["wtxid"]
+        rawmp = self.gen_node.getrawmempool(False, True)
+        pi = self.gen_node.getpeerinfo()[0]
+        assert_equal(rawmp["mempool_sequence"], 2) # our tx cause mempool activity
+        assert_equal(pi["last_inv_sequence"], 1) # that is after the last inv
+        assert_equal(pi["inv_to_send"], 1) # and our tx has been queued
+        self.gen_node.setmocktime(0)
+
         inbound_peer.wait_until(lambda: "inv" in inbound_peer.last_message and inbound_peer.last_message.get("inv").inv[0].hash == int(wtxid, 16))
+
+        rawmp = self.gen_node.getrawmempool(False, True)
+        pi = self.gen_node.getpeerinfo()[0]
+        assert_equal(rawmp["mempool_sequence"], 2) # no mempool update
+        assert_equal(pi["last_inv_sequence"], 2) # announced the current mempool
+        assert_equal(pi["inv_to_send"], 0) # nothing left in the queue
+
         want_tx = msg_getdata(inv=inbound_peer.last_message.get("inv").inv)
         self.generate(self.gen_node, 1)