diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index 546dea74fa..36719a167c 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -183,6 +183,7 @@ BASE_SCRIPTS = [
     'interface_bitcoin_cli.py --descriptors',
     'feature_bind_extra.py',
     'mempool_resurrect.py',
+    'wallet_sweepprivkeys.py',
     'wallet_txn_doublespend.py --mineblock',
     'tool_wallet.py --legacy-wallet',
     'tool_wallet.py --legacy-wallet --bdbro',
diff --git a/test/functional/wallet_sweepprivkeys.py b/test/functional/wallet_sweepprivkeys.py
new file mode 100755
index 0000000000..d1e58f8c6d
--- /dev/null
+++ b/test/functional/wallet_sweepprivkeys.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2022 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 the sweepprivkeys RPC."""
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal, assert_fee_amount
+
+class SweepPrivKeysTest(BitcoinTestFramework):
+    def add_options(self, parser):
+        self.add_wallet_options(parser)
+
+    def set_test_params(self):
+        self.num_nodes = 2
+
+    def check_balance(self, delta, txid):
+        node = self.nodes[0]
+        new_balances = node.getbalances()['mine']
+        new_balance = new_balances['trusted'] + new_balances['untrusted_pending']
+        balance_change = new_balance - self.balance
+        actual_fee = delta - balance_change
+        tx_vsize = node.getrawtransaction(txid, True)['vsize']
+        assert_fee_amount(actual_fee, tx_vsize, self.tx_feerate)
+        self.balance = new_balance
+
+    def skip_test_if_missing_module(self):
+        self.skip_if_no_wallet()
+
+    def run_test(self):
+        node = self.nodes[0]
+        miner = self.nodes[1]
+
+        keys = (
+            ('mkckmmfVv89sW1HUjyRuydGhwFmSaYtRvG', '92YkaycAxLPUqbbV78V9nNngKLnyVd9T8uZuZAzQnc26dJSP4fm'),
+            ('mw8s1FS2Vr7GwQF8bnDVUQHQZq5qWqz5kq', '93VijJgAYnVUGXAfxYhbMHVGVwQUEXK1YnPvcCod3x1RLbzUhXe'),
+        )
+
+        # This test is not meant to test fee estimation and we'd like
+        # to be sure all txs are sent at a consistent desired feerate
+        self.tx_feerate = self.nodes[0].getnetworkinfo()['relayfee'] * 2
+        node.settxfee(self.tx_feerate)
+
+        self.generate(miner, 120)
+        self.balance = node.getbalance('*', 0)
+
+        txid = node.sendtoaddress(keys[0][0], 10)
+        self.check_balance(-10, txid)
+
+        # Sweep from mempool
+        txid = node.sweepprivkeys({'privkeys': (keys[0][1],), 'label': 'test 1'})
+        assert_equal(node.listtransactions()[-1]['label'], 'test 1')
+        self.check_balance(10, txid)
+
+        txid = node.sendtoaddress(keys[1][0], 5)
+        self.check_balance(-5, txid)
+        self.sync_all()
+        self.generate(miner, 4)
+        assert_equal(self.balance, node.getbalance('*', 1))
+
+        # Sweep from blockchain
+        txid = node.sweepprivkeys({'privkeys': (keys[1][1],), 'label': 'test 2'})
+        assert_equal(node.listtransactions()[-1]['label'], 'test 2')
+        self.check_balance(5, txid)
+
+if __name__ == '__main__':
+    SweepPrivKeysTest(__file__).main()