Merge #10853: [tests] Fix RPC failure testing (again)

47ba8cf71 scripted-diff: rename assert_raises_jsonrpc to assert_raises_rpc error (John Newbery)
677d893ff [tests] do not allow assert_raises_message to be called with JSONRPCException (John Newbery)
5864e9c16 [tests] remove direct testing on JSONRPCException from individual test cases (John Newbery)

Pull request description:

  I did this a few months ago (here: #9707), but a few new examples have crept back in.

  When testing RPC failures, the test case should always assert the error value and message, to ensure that the failure was for the correct reason. Not doing that can hide bugs in the test code and mean that the test is not testing the correct behaviour.

  RPC failure testing should use the utility function `assert_raises_jsonrpc()` (renamed in the final commit of this PR to `assert_raises_rpc_error()`.

  This PR does the following:
  - changes all remaining instances of tests directly testing on `JSONRPCException` to calls to `assert_raises_jsonrpc()`
  - prevents `assert_raises_message()` from being called with `JSONRPCException`
  - scripted-diff changes `assert_raises_jsonrpc()` to `assert_raises_rpc_error()`

Tree-SHA512: 2cc5e320704ec623a6e5a27d3c2c81cea86b502e29896f03bb5bf92cc36725132c1144410aecdf49e90d4577d512ee467d50d8184e9d5c5d0870bfc931316a5a

35 files changed, 139 insertions, 137 deletions

diff --git a/test/functional/bip68-sequence.py b/test/functional/bip68-sequence.py
index 74f51d8cfb..5f8f21701f 100755
--- a/test/functional/bip68-sequence.py
+++ b/test/functional/bip68-sequence.py
@@ -83,7 +83,7 @@ class BIP68Test(BitcoinTestFramework):
         tx2.vout = [CTxOut(int(value-self.relayfee*COIN), CScript([b'a']))]
         tx2.rehash()
 
-        assert_raises_jsonrpc(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, ToHex(tx2))
+        assert_raises_rpc_error(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, ToHex(tx2))
 
         # Setting the version back down to 1 should disable the sequence lock,
         # so this should be accepted.
@@ -180,7 +180,7 @@ class BIP68Test(BitcoinTestFramework):
 
             if (using_sequence_locks and not should_pass):
                 # This transaction should be rejected
-                assert_raises_jsonrpc(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, rawtx)
+                assert_raises_rpc_error(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, rawtx)
             else:
                 # This raw transaction should be accepted
                 self.nodes[0].sendrawtransaction(rawtx)
@@ -227,7 +227,7 @@ class BIP68Test(BitcoinTestFramework):
 
             if (orig_tx.hash in node.getrawmempool()):
                 # sendrawtransaction should fail if the tx is in the mempool
-                assert_raises_jsonrpc(-26, NOT_FINAL_ERROR, node.sendrawtransaction, ToHex(tx))
+                assert_raises_rpc_error(-26, NOT_FINAL_ERROR, node.sendrawtransaction, ToHex(tx))
             else:
                 # sendrawtransaction should succeed if the tx is not in the mempool
                 node.sendrawtransaction(ToHex(tx))
@@ -280,7 +280,7 @@ class BIP68Test(BitcoinTestFramework):
         tx5.vout[0].nValue += int(utxos[0]["amount"]*COIN)
         raw_tx5 = self.nodes[0].signrawtransaction(ToHex(tx5))["hex"]
 
-        assert_raises_jsonrpc(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, raw_tx5)
+        assert_raises_rpc_error(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, raw_tx5)
 
         # Test mempool-BIP68 consistency after reorg
         #
@@ -353,7 +353,7 @@ class BIP68Test(BitcoinTestFramework):
         tx3.vout = [CTxOut(int(tx2.vout[0].nValue - self.relayfee*COIN), CScript([b'a']))]
         tx3.rehash()
 
-        assert_raises_jsonrpc(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, ToHex(tx3))
+        assert_raises_rpc_error(-26, NOT_FINAL_ERROR, self.nodes[0].sendrawtransaction, ToHex(tx3))
 
         # make a block that violates bip68; ensure that the tip updates
         tip = int(self.nodes[0].getbestblockhash(), 16)
diff --git a/test/functional/blockchain.py b/test/functional/blockchain.py
index de222584b8..4576cb036a 100755
--- a/test/functional/blockchain.py
+++ b/test/functional/blockchain.py
@@ -27,7 +27,7 @@ from test_framework.util import (
     assert_greater_than,
     assert_greater_than_or_equal,
     assert_raises,
-    assert_raises_jsonrpc,
+    assert_raises_rpc_error,
     assert_is_hex_string,
     assert_is_hash_string,
 )
@@ -125,7 +125,7 @@ class BlockchainTest(BitcoinTestFramework):
         assert('window_interval' not in chaintxstats)
         assert('txrate' not in chaintxstats)
 
-        assert_raises_jsonrpc(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, 201)
+        assert_raises_rpc_error(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, 201)
 
     def _test_gettxoutsetinfo(self):
         node = self.nodes[0]
@@ -171,7 +171,7 @@ class BlockchainTest(BitcoinTestFramework):
     def _test_getblockheader(self):
         node = self.nodes[0]
 
-        assert_raises_jsonrpc(-5, "Block not found",
+        assert_raises_rpc_error(-5, "Block not found",
                               node.getblockheader, "nonsense")
 
         besthash = node.getbestblockhash()
diff --git a/test/functional/bumpfee.py b/test/functional/bumpfee.py
index dde87d5bd1..008e83d5b2 100755
--- a/test/functional/bumpfee.py
+++ b/test/functional/bumpfee.py
@@ -133,7 +133,7 @@ def test_segwit_bumpfee_succeeds(rbf_node, dest_address):
 def test_nonrbf_bumpfee_fails(peer_node, dest_address):
     # cannot replace a non RBF transaction (from node which did not enable RBF)
     not_rbfid = peer_node.sendtoaddress(dest_address, Decimal("0.00090000"))
-    assert_raises_jsonrpc(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid)
+    assert_raises_rpc_error(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid)
 
 
 def test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address):
@@ -153,7 +153,7 @@ def test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address):
     signedtx = rbf_node.signrawtransaction(rawtx)
     signedtx = peer_node.signrawtransaction(signedtx["hex"])
     rbfid = rbf_node.sendrawtransaction(signedtx["hex"])
-    assert_raises_jsonrpc(-4, "Transaction contains inputs that don't belong to this wallet",
+    assert_raises_rpc_error(-4, "Transaction contains inputs that don't belong to this wallet",
                           rbf_node.bumpfee, rbfid)
 
 
@@ -164,7 +164,7 @@ def test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address)
     tx = rbf_node.createrawtransaction([{"txid": parent_id, "vout": 0}], {dest_address: 0.00020000})
     tx = rbf_node.signrawtransaction(tx)
     rbf_node.sendrawtransaction(tx["hex"])
-    assert_raises_jsonrpc(-8, "Transaction has descendants in the wallet", rbf_node.bumpfee, parent_id)
+    assert_raises_rpc_error(-8, "Transaction has descendants in the wallet", rbf_node.bumpfee, parent_id)
 
 
 def test_small_output_fails(rbf_node, dest_address):
@@ -173,7 +173,7 @@ def test_small_output_fails(rbf_node, dest_address):
     rbf_node.bumpfee(rbfid, {"totalFee": 50000})
 
     rbfid = spend_one_input(rbf_node, dest_address)
-    assert_raises_jsonrpc(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 50001})
+    assert_raises_rpc_error(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 50001})
 
 
 def test_dust_to_fee(rbf_node, dest_address):
@@ -205,7 +205,7 @@ def test_rebumping(rbf_node, dest_address):
     # check that re-bumping the original tx fails, but bumping the bumper succeeds
     rbfid = spend_one_input(rbf_node, dest_address)
     bumped = rbf_node.bumpfee(rbfid, {"totalFee": 2000})
-    assert_raises_jsonrpc(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 3000})
+    assert_raises_rpc_error(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 3000})
     rbf_node.bumpfee(bumped["txid"], {"totalFee": 3000})
 
 
@@ -213,7 +213,7 @@ def test_rebumping_not_replaceable(rbf_node, dest_address):
     # check that re-bumping a non-replaceable bump tx fails
     rbfid = spend_one_input(rbf_node, dest_address)
     bumped = rbf_node.bumpfee(rbfid, {"totalFee": 10000, "replaceable": False})
-    assert_raises_jsonrpc(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
+    assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
                           {"totalFee": 20000})
 
 
@@ -264,7 +264,7 @@ def test_bumpfee_metadata(rbf_node, dest_address):
 def test_locked_wallet_fails(rbf_node, dest_address):
     rbfid = spend_one_input(rbf_node, dest_address)
     rbf_node.walletlock()
-    assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first.",
+    assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first.",
                           rbf_node.bumpfee, rbfid)
 
 
diff --git a/test/functional/deprecated_rpc.py b/test/functional/deprecated_rpc.py
index ec500ccbf9..19fd24edb9 100755
--- a/test/functional/deprecated_rpc.py
+++ b/test/functional/deprecated_rpc.py
@@ -4,7 +4,7 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test deprecation of RPC calls."""
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_raises_jsonrpc
+from test_framework.util import assert_raises_rpc_error
 
 class DeprecatedRpcTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -14,7 +14,7 @@ class DeprecatedRpcTest(BitcoinTestFramework):
 
     def run_test(self):
         self.log.info("estimatefee: Shows deprecated message")
-        assert_raises_jsonrpc(-32, 'estimatefee is deprecated', self.nodes[0].estimatefee, 1)
+        assert_raises_rpc_error(-32, 'estimatefee is deprecated', self.nodes[0].estimatefee, 1)
 
         self.log.info("Using -deprecatedrpc=estimatefee bypasses the error")
         self.nodes[1].estimatefee(1)
diff --git a/test/functional/disablewallet.py b/test/functional/disablewallet.py
index c1d37963bc..c75ef9b9f1 100755
--- a/test/functional/disablewallet.py
+++ b/test/functional/disablewallet.py
@@ -19,7 +19,7 @@ class DisableWalletTest (BitcoinTestFramework):
 
     def run_test (self):
         # Make sure wallet is really disabled
-        assert_raises_jsonrpc(-32601, 'Method not found', self.nodes[0].getwalletinfo)
+        assert_raises_rpc_error(-32601, 'Method not found', self.nodes[0].getwalletinfo)
         x = self.nodes[0].validateaddress('3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy')
         assert(x['isvalid'] == False)
         x = self.nodes[0].validateaddress('mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ')
@@ -28,7 +28,7 @@ class DisableWalletTest (BitcoinTestFramework):
         # Checking mining to an address without a wallet. Generating to a valid address should succeed
         # but generating to an invalid address will fail.
         self.nodes[0].generatetoaddress(1, 'mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ')
-        assert_raises_jsonrpc(-5, "Invalid address", self.nodes[0].generatetoaddress, 1, '3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy')
+        assert_raises_rpc_error(-5, "Invalid address", self.nodes[0].generatetoaddress, 1, '3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy')
 
 if __name__ == '__main__':
     DisableWalletTest ().main ()
diff --git a/test/functional/disconnect_ban.py b/test/functional/disconnect_ban.py
index a6445b9b35..59655d37fb 100755
--- a/test/functional/disconnect_ban.py
+++ b/test/functional/disconnect_ban.py
@@ -8,7 +8,7 @@ import time
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    assert_raises_jsonrpc,
+    assert_raises_rpc_error,
     connect_nodes_bi,
     wait_until,
 )
@@ -34,14 +34,14 @@ class DisconnectBanTest(BitcoinTestFramework):
 
         self.log.info("setban: fail to ban an already banned subnet")
         assert_equal(len(self.nodes[1].listbanned()), 1)
-        assert_raises_jsonrpc(-23, "IP/Subnet already banned", self.nodes[1].setban, "127.0.0.1", "add")
+        assert_raises_rpc_error(-23, "IP/Subnet already banned", self.nodes[1].setban, "127.0.0.1", "add")
 
         self.log.info("setban: fail to ban an invalid subnet")
-        assert_raises_jsonrpc(-30, "Error: Invalid IP/Subnet", self.nodes[1].setban, "127.0.0.1/42", "add")
+        assert_raises_rpc_error(-30, "Error: Invalid IP/Subnet", self.nodes[1].setban, "127.0.0.1/42", "add")
         assert_equal(len(self.nodes[1].listbanned()), 1)  # still only one banned ip because 127.0.0.1 is within the range of 127.0.0.0/24
 
         self.log.info("setban remove: fail to unban a non-banned subnet")
-        assert_raises_jsonrpc(-30, "Error: Unban failed", self.nodes[1].setban, "127.0.0.1", "remove")
+        assert_raises_rpc_error(-30, "Error: Unban failed", self.nodes[1].setban, "127.0.0.1", "remove")
         assert_equal(len(self.nodes[1].listbanned()), 1)
 
         self.log.info("setban remove: successfully unban subnet")
@@ -81,10 +81,10 @@ class DisconnectBanTest(BitcoinTestFramework):
         self.log.info("disconnectnode: fail to disconnect when calling with address and nodeid")
         address1 = self.nodes[0].getpeerinfo()[0]['addr']
         node1 = self.nodes[0].getpeerinfo()[0]['addr']
-        assert_raises_jsonrpc(-32602, "Only one of address and nodeid should be provided.", self.nodes[0].disconnectnode, address=address1, nodeid=node1)
+        assert_raises_rpc_error(-32602, "Only one of address and nodeid should be provided.", self.nodes[0].disconnectnode, address=address1, nodeid=node1)
 
         self.log.info("disconnectnode: fail to disconnect when calling with junk address")
-        assert_raises_jsonrpc(-29, "Node not found in connected nodes", self.nodes[0].disconnectnode, address="221B Baker Street")
+        assert_raises_rpc_error(-29, "Node not found in connected nodes", self.nodes[0].disconnectnode, address="221B Baker Street")
 
         self.log.info("disconnectnode: successfully disconnect node by address")
         address1 = self.nodes[0].getpeerinfo()[0]['addr']
diff --git a/test/functional/fundrawtransaction.py b/test/functional/fundrawtransaction.py
index 71e88009b6..d446f56d0e 100755
--- a/test/functional/fundrawtransaction.py
+++ b/test/functional/fundrawtransaction.py
@@ -179,7 +179,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 
-        assert_raises_jsonrpc(-3, "Unexpected key foo", self.nodes[2].fundrawtransaction, rawtx, {'foo':'bar'})
+        assert_raises_rpc_error(-3, "Unexpected key foo", self.nodes[2].fundrawtransaction, rawtx, {'foo':'bar'})
 
         ############################################################
         # test a fundrawtransaction with an invalid change address #
@@ -192,7 +192,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 
-        assert_raises_jsonrpc(-5, "changeAddress must be a valid bitcoin address", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':'foobar'})
+        assert_raises_rpc_error(-5, "changeAddress must be a valid bitcoin address", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':'foobar'})
 
         ############################################################
         # test a fundrawtransaction with a provided change address #
@@ -206,7 +206,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
 
         change = self.nodes[2].getnewaddress()
-        assert_raises_jsonrpc(-8, "changePosition out of bounds", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':change, 'changePosition':2})
+        assert_raises_rpc_error(-8, "changePosition out of bounds", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':change, 'changePosition':2})
         rawtxfund = self.nodes[2].fundrawtransaction(rawtx, {'changeAddress': change, 'changePosition': 0})
         dec_tx  = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
         out = dec_tx['vout'][0]
@@ -314,7 +314,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
         dec_tx  = self.nodes[2].decoderawtransaction(rawtx)
 
-        assert_raises_jsonrpc(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx)
+        assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx)
 
         ############################################################
         #compare fee of a standard pubkeyhash transaction
@@ -469,14 +469,14 @@ class RawTransactionsTest(BitcoinTestFramework):
         rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
         # fund a transaction that requires a new key for the change output
         # creating the key must be impossible because the wallet is locked
-        assert_raises_jsonrpc(-4, "Keypool ran out, please call keypoolrefill first", self.nodes[1].fundrawtransaction, rawtx)
+        assert_raises_rpc_error(-4, "Keypool ran out, please call keypoolrefill first", self.nodes[1].fundrawtransaction, rawtx)
 
         #refill the keypool
         self.nodes[1].walletpassphrase("test", 100)
         self.nodes[1].keypoolrefill(8) #need to refill the keypool to get an internal change address
         self.nodes[1].walletlock()
 
-        assert_raises_jsonrpc(-13, "walletpassphrase", self.nodes[1].sendtoaddress, self.nodes[0].getnewaddress(), 1.2)
+        assert_raises_rpc_error(-13, "walletpassphrase", self.nodes[1].sendtoaddress, self.nodes[0].getnewaddress(), 1.2)
 
         oldBalance = self.nodes[0].getbalance()
 
diff --git a/test/functional/import-rescan.py b/test/functional/import-rescan.py
index cb5b65c682..6807fa6696 100755
--- a/test/functional/import-rescan.py
+++ b/test/functional/import-rescan.py
@@ -19,9 +19,8 @@ importing nodes pick up the new transactions regardless of whether rescans
 happened previously.
 """
 
-from test_framework.authproxy import JSONRPCException
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (connect_nodes, sync_blocks, assert_equal, set_node_times)
+from test_framework.util import (assert_raises_rpc_error, connect_nodes, sync_blocks, assert_equal, set_node_times)
 
 import collections
 import enum
@@ -35,21 +34,26 @@ Rescan = enum.Enum("Rescan", "no yes late_timestamp")
 class Variant(collections.namedtuple("Variant", "call data rescan prune")):
     """Helper for importing one key and verifying scanned transactions."""
 
+    def try_rpc(self, func, *args, **kwargs):
+        if self.expect_disabled:
+            assert_raises_rpc_error(-4, "Rescan is disabled in pruned mode", func, *args, **kwargs)
+        else:
+            return func(*args, **kwargs)
+
     def do_import(self, timestamp):
         """Call one key import RPC."""
 
         if self.call == Call.single:
             if self.data == Data.address:
-                response, error = try_rpc(self.node.importaddress, self.address["address"], self.label,
-                                          self.rescan == Rescan.yes)
+                response = self.try_rpc(self.node.importaddress, self.address["address"], self.label,
+                                               self.rescan == Rescan.yes)
             elif self.data == Data.pub:
-                response, error = try_rpc(self.node.importpubkey, self.address["pubkey"], self.label,
-                                          self.rescan == Rescan.yes)
+                response = self.try_rpc(self.node.importpubkey, self.address["pubkey"], self.label,
+                                               self.rescan == Rescan.yes)
             elif self.data == Data.priv:
-                response, error = try_rpc(self.node.importprivkey, self.key, self.label, self.rescan == Rescan.yes)
+                response = self.try_rpc(self.node.importprivkey, self.key, self.label, self.rescan == Rescan.yes)
             assert_equal(response, None)
-            assert_equal(error, {'message': 'Rescan is disabled in pruned mode',
-                                 'code': -4} if self.expect_disabled else None)
+
         elif self.call == Call.multi:
             response = self.node.importmulti([{
                 "scriptPubKey": {
@@ -179,13 +183,5 @@ class ImportRescanTest(BitcoinTestFramework):
             else:
                 variant.check()
 
-
-def try_rpc(func, *args, **kwargs):
-    try:
-        return func(*args, **kwargs), None
-    except JSONRPCException as e:
-        return None, e.error
-
-
 if __name__ == "__main__":
     ImportRescanTest().main()
diff --git a/test/functional/importmulti.py b/test/functional/importmulti.py
index 32f555c79b..c1a42870ec 100755
--- a/test/functional/importmulti.py
+++ b/test/functional/importmulti.py
@@ -423,11 +423,11 @@ class ImportMultiTest (BitcoinTestFramework):
 
         # Bad or missing timestamps
         self.log.info("Should throw on invalid or missing timestamp values")
-        assert_raises_message(JSONRPCException, 'Missing required timestamp field for key',
+        assert_raises_rpc_error(-3, 'Missing required timestamp field for key',
             self.nodes[1].importmulti, [{
                 "scriptPubKey": address['scriptPubKey'],
             }])
-        assert_raises_message(JSONRPCException, 'Expected number or "now" timestamp value for key. got type string',
+        assert_raises_rpc_error(-3, 'Expected number or "now" timestamp value for key. got type string',
             self.nodes[1].importmulti, [{
                 "scriptPubKey": address['scriptPubKey'],
                 "timestamp": "",
diff --git a/test/functional/importprunedfunds.py b/test/functional/importprunedfunds.py
index 9619d67952..068052409a 100755
--- a/test/functional/importprunedfunds.py
+++ b/test/functional/importprunedfunds.py
@@ -66,7 +66,7 @@ class ImportPrunedFundsTest(BitcoinTestFramework):
         self.sync_all()
 
         #Import with no affiliated address
-        assert_raises_jsonrpc(-5, "No addresses", self.nodes[1].importprunedfunds, rawtxn1, proof1)
+        assert_raises_rpc_error(-5, "No addresses", self.nodes[1].importprunedfunds, rawtxn1, proof1)
 
         balance1 = self.nodes[1].getbalance("", 0, True)
         assert_equal(balance1, Decimal(0))
@@ -97,7 +97,7 @@ class ImportPrunedFundsTest(BitcoinTestFramework):
         assert_equal(address_info['ismine'], True)
 
         #Remove transactions
-        assert_raises_jsonrpc(-8, "Transaction does not exist in wallet.", self.nodes[1].removeprunedfunds, txnid1)
+        assert_raises_rpc_error(-8, "Transaction does not exist in wallet.", self.nodes[1].removeprunedfunds, txnid1)
 
         balance1 = self.nodes[1].getbalance("*", 0, True)
         assert_equal(balance1, Decimal('0.075'))
diff --git a/test/functional/keypool.py b/test/functional/keypool.py
index b823ca63bb..f2701c36bd 100755
--- a/test/functional/keypool.py
+++ b/test/functional/keypool.py
@@ -28,7 +28,7 @@ class KeyPoolTest(BitcoinTestFramework):
         wallet_info = nodes[0].getwalletinfo()
         assert(addr_before_encrypting_data['hdmasterkeyid'] != wallet_info['hdmasterkeyid'])
         assert(addr_data['hdmasterkeyid'] == wallet_info['hdmasterkeyid'])
-        assert_raises_jsonrpc(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)
+        assert_raises_rpc_error(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)
 
         # put six (plus 2) new keys in the keypool (100% external-, +100% internal-keys, 1 in min)
         nodes[0].walletpassphrase('test', 12000)
@@ -47,7 +47,7 @@ class KeyPoolTest(BitcoinTestFramework):
         nodes[0].getrawchangeaddress()
         addr = set()
         # the next one should fail
-        assert_raises_jsonrpc(-12, "Keypool ran out", nodes[0].getrawchangeaddress)
+        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].getrawchangeaddress)
 
         # drain the external keys
         addr.add(nodes[0].getnewaddress())
@@ -58,7 +58,7 @@ class KeyPoolTest(BitcoinTestFramework):
         addr.add(nodes[0].getnewaddress())
         assert(len(addr) == 6)
         # the next one should fail
-        assert_raises_jsonrpc(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)
+        assert_raises_rpc_error(-12, "Error: Keypool ran out, please call keypoolrefill first", nodes[0].getnewaddress)
 
         # refill keypool with three new addresses
         nodes[0].walletpassphrase('test', 1)
@@ -72,7 +72,7 @@ class KeyPoolTest(BitcoinTestFramework):
         nodes[0].generate(1)
         nodes[0].generate(1)
         nodes[0].generate(1)
-        assert_raises_jsonrpc(-12, "Keypool ran out", nodes[0].generate, 1)
+        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].generate, 1)
 
         nodes[0].walletpassphrase('test', 100)
         nodes[0].keypoolrefill(100)
diff --git a/test/functional/mempool_packages.py b/test/functional/mempool_packages.py
index 2b09889661..b845c75681 100755
--- a/test/functional/mempool_packages.py
+++ b/test/functional/mempool_packages.py
@@ -115,7 +115,7 @@ class MempoolPackagesTest(BitcoinTestFramework):
             assert_equal(mempool[x]['descendantfees'], descendant_fees * COIN + 1000)
 
         # Adding one more transaction on to the chain should fail.
-        assert_raises_jsonrpc(-26, "too-long-mempool-chain", self.chain_transaction, self.nodes[0], txid, vout, value, fee, 1)
+        assert_raises_rpc_error(-26, "too-long-mempool-chain", self.chain_transaction, self.nodes[0], txid, vout, value, fee, 1)
 
         # Check that prioritising a tx before it's added to the mempool works
         # First clear the mempool by mining a block.
@@ -167,7 +167,7 @@ class MempoolPackagesTest(BitcoinTestFramework):
 
         # Sending one more chained transaction will fail
         utxo = transaction_package.pop(0)
-        assert_raises_jsonrpc(-26, "too-long-mempool-chain", self.chain_transaction, self.nodes[0], utxo['txid'], utxo['vout'], utxo['amount'], fee, 10)
+        assert_raises_rpc_error(-26, "too-long-mempool-chain", self.chain_transaction, self.nodes[0], utxo['txid'], utxo['vout'], utxo['amount'], fee, 10)
 
         # TODO: check that node1's mempool is as expected
 
diff --git a/test/functional/mempool_persist.py b/test/functional/mempool_persist.py
index 149a01870d..92f66be2ff 100755
--- a/test/functional/mempool_persist.py
+++ b/test/functional/mempool_persist.py
@@ -103,7 +103,7 @@ class MempoolPersistTest(BitcoinTestFramework):
         mempooldotnew1 = mempooldat1 + '.new'
         with os.fdopen(os.open(mempooldotnew1, os.O_CREAT, 0o000), 'w'):
             pass
-        assert_raises_jsonrpc(-1, "Unable to dump mempool to disk", self.nodes[1].savemempool)
+        assert_raises_rpc_error(-1, "Unable to dump mempool to disk", self.nodes[1].savemempool)
         os.remove(mempooldotnew1)
 
 if __name__ == '__main__':
diff --git a/test/functional/mempool_reorg.py b/test/functional/mempool_reorg.py
index 7dfddd3230..2803371f5b 100755
--- a/test/functional/mempool_reorg.py
+++ b/test/functional/mempool_reorg.py
@@ -50,14 +50,14 @@ class MempoolCoinbaseTest(BitcoinTestFramework):
         timelock_tx = timelock_tx[:-8] + hex(self.nodes[0].getblockcount() + 2)[2:] + "000000"
         timelock_tx = self.nodes[0].signrawtransaction(timelock_tx)["hex"]
         # This will raise an exception because the timelock transaction is too immature to spend
-        assert_raises_jsonrpc(-26, "non-final", self.nodes[0].sendrawtransaction, timelock_tx)
+        assert_raises_rpc_error(-26, "non-final", self.nodes[0].sendrawtransaction, timelock_tx)
 
         # Broadcast and mine spend_102 and 103:
         spend_102_id = self.nodes[0].sendrawtransaction(spend_102_raw)
         spend_103_id = self.nodes[0].sendrawtransaction(spend_103_raw)
         self.nodes[0].generate(1)
         # Time-locked transaction is still too immature to spend
-        assert_raises_jsonrpc(-26,'non-final', self.nodes[0].sendrawtransaction, timelock_tx)
+        assert_raises_rpc_error(-26,'non-final', self.nodes[0].sendrawtransaction, timelock_tx)
 
         # Create 102_1 and 103_1:
         spend_102_1_raw = create_tx(self.nodes[0], spend_102_id, node1_address, 49.98)
diff --git a/test/functional/mempool_spendcoinbase.py b/test/functional/mempool_spendcoinbase.py
index 58ccd3e373..6e8a635a76 100755
--- a/test/functional/mempool_spendcoinbase.py
+++ b/test/functional/mempool_spendcoinbase.py
@@ -36,7 +36,7 @@ class MempoolSpendCoinbaseTest(BitcoinTestFramework):
         spend_101_id = self.nodes[0].sendrawtransaction(spends_raw[0])
 
         # coinbase at height 102 should be too immature to spend
-        assert_raises_jsonrpc(-26,"bad-txns-premature-spend-of-coinbase", self.nodes[0].sendrawtransaction, spends_raw[1])
+        assert_raises_rpc_error(-26,"bad-txns-premature-spend-of-coinbase", self.nodes[0].sendrawtransaction, spends_raw[1])
 
         # mempool should have just spend_101:
         assert_equal(self.nodes[0].getrawmempool(), [ spend_101_id ])
diff --git a/test/functional/merkle_blocks.py b/test/functional/merkle_blocks.py
index a58334b2a5..b3989a4c54 100755
--- a/test/functional/merkle_blocks.py
+++ b/test/functional/merkle_blocks.py
@@ -38,7 +38,7 @@ class MerkleBlockTest(BitcoinTestFramework):
         tx2 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
         txid2 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx2)["hex"])
         # This will raise an exception because the transaction is not yet in a block
-        assert_raises_jsonrpc(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [txid1])
+        assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [txid1])
 
         self.nodes[0].generate(1)
         blockhash = self.nodes[0].getblockhash(chain_height + 1)
@@ -63,11 +63,11 @@ class MerkleBlockTest(BitcoinTestFramework):
         txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2
 
         # We can't find the block from a fully-spent tx
-        assert_raises_jsonrpc(-5, "Transaction not yet in block", self.nodes[2].gettxoutproof, [txid_spent])
+        assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[2].gettxoutproof, [txid_spent])
         # We can get the proof if we specify the block
         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_spent], blockhash)), [txid_spent])
         # We can't get the proof if we specify a non-existent block
-        assert_raises_jsonrpc(-5, "Block not found", self.nodes[2].gettxoutproof, [txid_spent], "00000000000000000000000000000000")
+        assert_raises_rpc_error(-5, "Block not found", self.nodes[2].gettxoutproof, [txid_spent], "00000000000000000000000000000000")
         # We can get the proof if the transaction is unspent
         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_unspent])), [txid_unspent])
         # We can get the proof if we provide a list of transactions and one of them is unspent. The ordering of the list should not matter.
@@ -76,7 +76,7 @@ class MerkleBlockTest(BitcoinTestFramework):
         # We can always get a proof if we have a -txindex
         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[3].gettxoutproof([txid_spent])), [txid_spent])
         # We can't get a proof if we specify transactions from different blocks
-        assert_raises_jsonrpc(-5, "Not all transactions found in specified or retrieved block", self.nodes[2].gettxoutproof, [txid1, txid3])
+        assert_raises_rpc_error(-5, "Not all transactions found in specified or retrieved block", self.nodes[2].gettxoutproof, [txid1, txid3])
 
 
 if __name__ == '__main__':
diff --git a/test/functional/mining.py b/test/functional/mining.py
index c8fb1062b7..9aee06864e 100755
--- a/test/functional/mining.py
+++ b/test/functional/mining.py
@@ -15,7 +15,7 @@ from decimal import Decimal
 from test_framework.blocktools import create_coinbase
 from test_framework.mininode import CBlock
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal, assert_raises_jsonrpc
+from test_framework.util import assert_equal, assert_raises_rpc_error
 
 def b2x(b):
     return b2a_hex(b).decode('ascii')
@@ -68,7 +68,7 @@ class MiningTest(BitcoinTestFramework):
         assert_template(node, block, None)
 
         self.log.info("submitblock: Test block decode failure")
-        assert_raises_jsonrpc(-22, "Block decode failed", node.submitblock, b2x(block.serialize()[:-15]))
+        assert_raises_rpc_error(-22, "Block decode failed", node.submitblock, b2x(block.serialize()[:-15]))
 
         self.log.info("getblocktemplate: Test bad input hash for coinbase transaction")
         bad_block = copy.deepcopy(block)
@@ -77,10 +77,10 @@ class MiningTest(BitcoinTestFramework):
         assert_template(node, bad_block, 'bad-cb-missing')
 
         self.log.info("submitblock: Test invalid coinbase transaction")
-        assert_raises_jsonrpc(-22, "Block does not start with a coinbase", node.submitblock, b2x(bad_block.serialize()))
+        assert_raises_rpc_error(-22, "Block does not start with a coinbase", node.submitblock, b2x(bad_block.serialize()))
 
         self.log.info("getblocktemplate: Test truncated final transaction")
-        assert_raises_jsonrpc(-22, "Block decode failed", node.getblocktemplate, {'data': b2x(block.serialize()[:-1]), 'mode': 'proposal'})
+        assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {'data': b2x(block.serialize()[:-1]), 'mode': 'proposal'})
 
         self.log.info("getblocktemplate: Test duplicate transaction")
         bad_block = copy.deepcopy(block)
@@ -107,7 +107,7 @@ class MiningTest(BitcoinTestFramework):
         bad_block_sn = bytearray(block.serialize())
         assert_equal(bad_block_sn[TX_COUNT_OFFSET], 1)
         bad_block_sn[TX_COUNT_OFFSET] += 1
-        assert_raises_jsonrpc(-22, "Block decode failed", node.getblocktemplate, {'data': b2x(bad_block_sn), 'mode': 'proposal'})
+        assert_raises_rpc_error(-22, "Block decode failed", node.getblocktemplate, {'data': b2x(bad_block_sn), 'mode': 'proposal'})
 
         self.log.info("getblocktemplate: Test bad bits")
         bad_block = copy.deepcopy(block)
diff --git a/test/functional/multiwallet.py b/test/functional/multiwallet.py
index b4e15a3322..6adcc1fd88 100755
--- a/test/functional/multiwallet.py
+++ b/test/functional/multiwallet.py
@@ -9,7 +9,7 @@ Verify that a bitcoind node can load multiple wallet files
 import os
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal, assert_raises_jsonrpc
+from test_framework.util import assert_equal, assert_raises_rpc_error
 
 class MultiWalletTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -43,10 +43,10 @@ class MultiWalletTest(BitcoinTestFramework):
         w1.generate(1)
 
         # accessing invalid wallet fails
-        assert_raises_jsonrpc(-18, "Requested wallet does not exist or is not loaded", wallet_bad.getwalletinfo)
+        assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", wallet_bad.getwalletinfo)
 
         # accessing wallet RPC without using wallet endpoint fails
-        assert_raises_jsonrpc(-19, "Wallet file not specified", self.nodes[0].getwalletinfo)
+        assert_raises_rpc_error(-19, "Wallet file not specified", self.nodes[0].getwalletinfo)
 
         # check w1 wallet balance
         w1_info = w1.getwalletinfo()
diff --git a/test/functional/net.py b/test/functional/net.py
index 830aeb45b4..16e4f6adb4 100755
--- a/test/functional/net.py
+++ b/test/functional/net.py
@@ -12,7 +12,7 @@ import time
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    assert_raises_jsonrpc,
+    assert_raises_rpc_error,
     connect_nodes_bi,
     p2p_port,
 )
@@ -84,7 +84,7 @@ class NetTest(BitcoinTestFramework):
         assert_equal(len(added_nodes), 1)
         assert_equal(added_nodes[0]['addednode'], ip_port)
         # check that a non-existent node returns an error
-        assert_raises_jsonrpc(-24, "Node has not been added",
+        assert_raises_rpc_error(-24, "Node has not been added",
                               self.nodes[0].getaddednodeinfo, '1.1.1.1')
 
     def _test_getpeerinfo(self):
diff --git a/test/functional/nulldummy.py b/test/functional/nulldummy.py
index 60d0d876df..91c4550653 100755
--- a/test/functional/nulldummy.py
+++ b/test/functional/nulldummy.py
@@ -71,7 +71,7 @@ class NULLDUMMYTest(BitcoinTestFramework):
         self.log.info("Test 2: Non-NULLDUMMY base multisig transaction should not be accepted to mempool before activation")
         test2tx = self.create_transaction(self.nodes[0], txid2, self.ms_address, 47)
         trueDummy(test2tx)
-        assert_raises_jsonrpc(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test2tx.serialize_with_witness()), True)
+        assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test2tx.serialize_with_witness()), True)
 
         self.log.info("Test 3: Non-NULLDUMMY base transactions should be accepted in a block before activation [431]")
         self.block_submit(self.nodes[0], [test2tx], False, True)
@@ -80,14 +80,14 @@ class NULLDUMMYTest(BitcoinTestFramework):
         test4tx = self.create_transaction(self.nodes[0], test2tx.hash, self.address, 46)
         test6txs=[CTransaction(test4tx)]
         trueDummy(test4tx)
-        assert_raises_jsonrpc(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test4tx.serialize_with_witness()), True)
+        assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test4tx.serialize_with_witness()), True)
         self.block_submit(self.nodes[0], [test4tx])
 
         self.log.info("Test 5: Non-NULLDUMMY P2WSH multisig transaction invalid after activation")
         test5tx = self.create_transaction(self.nodes[0], txid3, self.wit_address, 48)
         test6txs.append(CTransaction(test5tx))
         test5tx.wit.vtxinwit[0].scriptWitness.stack[0] = b'\x01'
-        assert_raises_jsonrpc(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test5tx.serialize_with_witness()), True)
+        assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test5tx.serialize_with_witness()), True)
         self.block_submit(self.nodes[0], [test5tx], True)
 
         self.log.info("Test 6: NULLDUMMY compliant base/witness transactions should be accepted to mempool and in block after activation [432]")
diff --git a/test/functional/p2p-acceptblock.py b/test/functional/p2p-acceptblock.py
index 293bc05539..5b6429b410 100755
--- a/test/functional/p2p-acceptblock.py
+++ b/test/functional/p2p-acceptblock.py
@@ -171,7 +171,7 @@ class AcceptBlockTest(BitcoinTestFramework):
         # Blocks 1-287 should be accepted, block 288 should be ignored because it's too far ahead
         for x in all_blocks[:-1]:
             self.nodes[0].getblock(x.hash)
-        assert_raises_jsonrpc(-1, "Block not found on disk", self.nodes[0].getblock, all_blocks[-1].hash)
+        assert_raises_rpc_error(-1, "Block not found on disk", self.nodes[0].getblock, all_blocks[-1].hash)
 
         headers_message.headers.pop() # Ensure the last block is unrequested
         white_node.send_message(headers_message) # Send headers leading to tip
diff --git a/test/functional/prioritise_transaction.py b/test/functional/prioritise_transaction.py
index 7ad368acd4..bb56db9b40 100755
--- a/test/functional/prioritise_transaction.py
+++ b/test/functional/prioritise_transaction.py
@@ -101,7 +101,7 @@ class PrioritiseTransactionTest(BitcoinTestFramework):
         tx_id = self.nodes[0].decoderawtransaction(tx_hex)["txid"]
 
         # This will raise an exception due to min relay fee not being met
-        assert_raises_jsonrpc(-26, "66: min relay fee not met", self.nodes[0].sendrawtransaction, tx_hex)
+        assert_raises_rpc_error(-26, "66: min relay fee not met", self.nodes[0].sendrawtransaction, tx_hex)
         assert(tx_id not in self.nodes[0].getrawmempool())
 
         # This is a less than 1000-byte transaction, so just set the fee
diff --git a/test/functional/pruning.py b/test/functional/pruning.py
index f53fe82881..0101f61185 100755
--- a/test/functional/pruning.py
+++ b/test/functional/pruning.py
@@ -185,7 +185,7 @@ class PruneTest(BitcoinTestFramework):
 
     def reorg_back(self):
         # Verify that a block on the old main chain fork has been pruned away
-        assert_raises_jsonrpc(-1, "Block not available (pruned data)", self.nodes[2].getblock, self.forkhash)
+        assert_raises_rpc_error(-1, "Block not available (pruned data)", self.nodes[2].getblock, self.forkhash)
         self.log.info("Will need to redownload block %d" % self.forkheight)
 
         # Verify that we have enough history to reorg back to the fork point
@@ -232,7 +232,7 @@ class PruneTest(BitcoinTestFramework):
         self.start_node(node_number)
         node = self.nodes[node_number]
         assert_equal(node.getblockcount(), 995)
-        assert_raises_jsonrpc(-1, "not in prune mode", node.pruneblockchain, 500)
+        assert_raises_rpc_error(-1, "not in prune mode", node.pruneblockchain, 500)
 
         # now re-start in manual pruning mode
         self.stop_node(node_number)
@@ -265,14 +265,14 @@ class PruneTest(BitcoinTestFramework):
             return os.path.isfile(self.options.tmpdir + "/node{}/regtest/blocks/blk{:05}.dat".format(node_number, index))
 
         # should not prune because chain tip of node 3 (995) < PruneAfterHeight (1000)
-        assert_raises_jsonrpc(-1, "Blockchain is too short for pruning", node.pruneblockchain, height(500))
+        assert_raises_rpc_error(-1, "Blockchain is too short for pruning", node.pruneblockchain, height(500))
 
         # mine 6 blocks so we are at height 1001 (i.e., above PruneAfterHeight)
         node.generate(6)
         assert_equal(node.getblockchaininfo()["blocks"], 1001)
 
         # negative heights should raise an exception
-        assert_raises_jsonrpc(-8, "Negative", node.pruneblockchain, -10)
+        assert_raises_rpc_error(-8, "Negative", node.pruneblockchain, -10)
 
         # height=100 too low to prune first block file so this is a no-op
         prune(100)
diff --git a/test/functional/rawtransactions.py b/test/functional/rawtransactions.py
index d7255daa0a..2777cb9693 100755
--- a/test/functional/rawtransactions.py
+++ b/test/functional/rawtransactions.py
@@ -48,7 +48,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         rawtx   = self.nodes[2].signrawtransaction(rawtx)
 
         # This will raise an exception since there are missing inputs
-        assert_raises_jsonrpc(-25, "Missing inputs", self.nodes[2].sendrawtransaction, rawtx['hex'])
+        assert_raises_rpc_error(-25, "Missing inputs", self.nodes[2].sendrawtransaction, rawtx['hex'])
 
         #########################
         # RAW TX MULTISIG TESTS #
@@ -188,13 +188,13 @@ class RawTransactionsTest(BitcoinTestFramework):
         assert_equal(self.nodes[0].getrawtransaction(txHash, True)["hex"], rawTxSigned['hex'])
 
         # 6. invalid parameters - supply txid and string "Flase"
-        assert_raises_jsonrpc(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, "Flase")
+        assert_raises_rpc_error(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, "Flase")
 
         # 7. invalid parameters - supply txid and empty array
-        assert_raises_jsonrpc(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, [])
+        assert_raises_rpc_error(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, [])
 
         # 8. invalid parameters - supply txid and empty dict
-        assert_raises_jsonrpc(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, {})
+        assert_raises_rpc_error(-3,"Invalid type", self.nodes[0].getrawtransaction, txHash, {})
 
         inputs  = [ {'txid' : "1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000", 'vout' : 1, 'sequence' : 1000}]
         outputs = { self.nodes[0].getnewaddress() : 1 }
@@ -205,12 +205,12 @@ class RawTransactionsTest(BitcoinTestFramework):
         # 9. invalid parameters - sequence number out of range
         inputs  = [ {'txid' : "1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000", 'vout' : 1, 'sequence' : -1}]
         outputs = { self.nodes[0].getnewaddress() : 1 }
-        assert_raises_jsonrpc(-8, 'Invalid parameter, sequence number is out of range', self.nodes[0].createrawtransaction, inputs, outputs)
+        assert_raises_rpc_error(-8, 'Invalid parameter, sequence number is out of range', self.nodes[0].createrawtransaction, inputs, outputs)
 
         # 10. invalid parameters - sequence number out of range
         inputs  = [ {'txid' : "1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000", 'vout' : 1, 'sequence' : 4294967296}]
         outputs = { self.nodes[0].getnewaddress() : 1 }
-        assert_raises_jsonrpc(-8, 'Invalid parameter, sequence number is out of range', self.nodes[0].createrawtransaction, inputs, outputs)
+        assert_raises_rpc_error(-8, 'Invalid parameter, sequence number is out of range', self.nodes[0].createrawtransaction, inputs, outputs)
 
         inputs  = [ {'txid' : "1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000", 'vout' : 1, 'sequence' : 4294967294}]
         outputs = { self.nodes[0].getnewaddress() : 1 }
diff --git a/test/functional/replace-by-fee.py b/test/functional/replace-by-fee.py
index 75f3d77c13..269d57775c 100755
--- a/test/functional/replace-by-fee.py
+++ b/test/functional/replace-by-fee.py
@@ -125,9 +125,9 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx1b_hex = txToHex(tx1b)
 
         # This will raise an exception due to insufficient fee
-        assert_raises_jsonrpc(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx1b_hex, True)
+        assert_raises_rpc_error(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx1b_hex, True)
         # This will raise an exception due to transaction replacement being disabled
-        assert_raises_jsonrpc(-26, "txn-mempool-conflict", self.nodes[1].sendrawtransaction, tx1b_hex, True)
+        assert_raises_rpc_error(-26, "txn-mempool-conflict", self.nodes[1].sendrawtransaction, tx1b_hex, True)
 
         # Extra 0.1 BTC fee
         tx1b = CTransaction()
@@ -135,7 +135,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx1b.vout = [CTxOut(int(0.9*COIN), CScript([b'b']))]
         tx1b_hex = txToHex(tx1b)
         # Replacement still disabled even with "enough fee"
-        assert_raises_jsonrpc(-26, "txn-mempool-conflict", self.nodes[1].sendrawtransaction, tx1b_hex, True)
+        assert_raises_rpc_error(-26, "txn-mempool-conflict", self.nodes[1].sendrawtransaction, tx1b_hex, True)
         # Works when enabled
         tx1b_txid = self.nodes[0].sendrawtransaction(tx1b_hex, True)
 
@@ -178,7 +178,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         dbl_tx_hex = txToHex(dbl_tx)
 
         # This will raise an exception due to insufficient fee
-        assert_raises_jsonrpc(-26, "insufficient fee", self.nodes[0].sendrawtransaction, dbl_tx_hex, True)
+        assert_raises_rpc_error(-26, "insufficient fee", self.nodes[0].sendrawtransaction, dbl_tx_hex, True)
 
         # Accepted with sufficient fee
         dbl_tx = CTransaction()
@@ -239,7 +239,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         dbl_tx.vout = [CTxOut(initial_nValue - fee*n, CScript([1]))]
         dbl_tx_hex = txToHex(dbl_tx)
         # This will raise an exception due to insufficient fee
-        assert_raises_jsonrpc(-26, "insufficient fee", self.nodes[0].sendrawtransaction, dbl_tx_hex, True)
+        assert_raises_rpc_error(-26, "insufficient fee", self.nodes[0].sendrawtransaction, dbl_tx_hex, True)
 
         # 1 BTC fee is enough
         dbl_tx = CTransaction()
@@ -267,7 +267,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
             dbl_tx.vout = [CTxOut(initial_nValue - 2*fee*n, CScript([1]))]
             dbl_tx_hex = txToHex(dbl_tx)
             # This will raise an exception
-            assert_raises_jsonrpc(-26, "too many potential replacements", self.nodes[0].sendrawtransaction, dbl_tx_hex, True)
+            assert_raises_rpc_error(-26, "too many potential replacements", self.nodes[0].sendrawtransaction, dbl_tx_hex, True)
 
             for tx in tree_txs:
                 tx.rehash()
@@ -291,7 +291,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx1b_hex = txToHex(tx1b)
 
         # This will raise an exception due to insufficient fee
-        assert_raises_jsonrpc(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx1b_hex, True)
+        assert_raises_rpc_error(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx1b_hex, True)
 
     def test_spends_of_conflicting_outputs(self):
         """Replacements that spend conflicting tx outputs are rejected"""
@@ -314,7 +314,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx2_hex = txToHex(tx2)
 
         # This will raise an exception
-        assert_raises_jsonrpc(-26, "bad-txns-spends-conflicting-tx", self.nodes[0].sendrawtransaction, tx2_hex, True)
+        assert_raises_rpc_error(-26, "bad-txns-spends-conflicting-tx", self.nodes[0].sendrawtransaction, tx2_hex, True)
 
         # Spend tx1a's output to test the indirect case.
         tx1b = CTransaction()
@@ -331,7 +331,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx2_hex = txToHex(tx2)
 
         # This will raise an exception
-        assert_raises_jsonrpc(-26, "bad-txns-spends-conflicting-tx", self.nodes[0].sendrawtransaction, tx2_hex, True)
+        assert_raises_rpc_error(-26, "bad-txns-spends-conflicting-tx", self.nodes[0].sendrawtransaction, tx2_hex, True)
 
     def test_new_unconfirmed_inputs(self):
         """Replacements that add new unconfirmed inputs are rejected"""
@@ -350,7 +350,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx2_hex = txToHex(tx2)
 
         # This will raise an exception
-        assert_raises_jsonrpc(-26, "replacement-adds-unconfirmed", self.nodes[0].sendrawtransaction, tx2_hex, True)
+        assert_raises_rpc_error(-26, "replacement-adds-unconfirmed", self.nodes[0].sendrawtransaction, tx2_hex, True)
 
     def test_too_many_replacements(self):
         """Replacements that evict too many transactions are rejected"""
@@ -396,7 +396,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         double_tx_hex = txToHex(double_tx)
 
         # This will raise an exception
-        assert_raises_jsonrpc(-26, "too many potential replacements", self.nodes[0].sendrawtransaction, double_tx_hex, True)
+        assert_raises_rpc_error(-26, "too many potential replacements", self.nodes[0].sendrawtransaction, double_tx_hex, True)
 
         # If we remove an input, it should pass
         double_tx = CTransaction()
@@ -423,7 +423,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx1b_hex = txToHex(tx1b)
 
         # This will raise an exception
-        assert_raises_jsonrpc(-26, "txn-mempool-conflict", self.nodes[0].sendrawtransaction, tx1b_hex, True)
+        assert_raises_rpc_error(-26, "txn-mempool-conflict", self.nodes[0].sendrawtransaction, tx1b_hex, True)
 
         tx1_outpoint = make_utxo(self.nodes[0], int(1.1*COIN))
 
@@ -441,7 +441,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx2b_hex = txToHex(tx2b)
 
         # This will raise an exception
-        assert_raises_jsonrpc(-26, "txn-mempool-conflict", self.nodes[0].sendrawtransaction, tx2b_hex, True)
+        assert_raises_rpc_error(-26, "txn-mempool-conflict", self.nodes[0].sendrawtransaction, tx2b_hex, True)
 
         # Now create a new transaction that spends from tx1a and tx2a
         # opt-in on one of the inputs
@@ -493,7 +493,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx1b_hex = txToHex(tx1b)
 
         # Verify tx1b cannot replace tx1a.
-        assert_raises_jsonrpc(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx1b_hex, True)
+        assert_raises_rpc_error(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx1b_hex, True)
 
         # Use prioritisetransaction to set tx1a's fee to 0.
         self.nodes[0].prioritisetransaction(txid=tx1a_txid, fee_delta=int(-0.1*COIN))
@@ -520,7 +520,7 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx2b_hex = txToHex(tx2b)
 
         # Verify tx2b cannot replace tx2a.
-        assert_raises_jsonrpc(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx2b_hex, True)
+        assert_raises_rpc_error(-26, "insufficient fee", self.nodes[0].sendrawtransaction, tx2b_hex, True)
 
         # Now prioritise tx2b to have a higher modified fee
         self.nodes[0].prioritisetransaction(txid=tx2b.hash, fee_delta=int(0.1*COIN))
diff --git a/test/functional/resendwallettransactions.py b/test/functional/resendwallettransactions.py
index d6ba591391..d959bb4c38 100755
--- a/test/functional/resendwallettransactions.py
+++ b/test/functional/resendwallettransactions.py
@@ -5,7 +5,7 @@
 """Test resendwallettransactions RPC."""
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal, assert_raises_jsonrpc
+from test_framework.util import assert_equal, assert_raises_rpc_error
 
 class ResendWalletTransactionsTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -14,7 +14,7 @@ class ResendWalletTransactionsTest(BitcoinTestFramework):
 
     def run_test(self):
         # Should raise RPC_WALLET_ERROR (-4) if walletbroadcast is disabled.
-        assert_raises_jsonrpc(-4, "Error: Wallet transaction broadcasting is disabled with -walletbroadcast", self.nodes[0].resendwallettransactions)
+        assert_raises_rpc_error(-4, "Error: Wallet transaction broadcasting is disabled with -walletbroadcast", self.nodes[0].resendwallettransactions)
 
         # Should return an empty array if there aren't unconfirmed wallet transactions.
         self.stop_node(0)
diff --git a/test/functional/rpcbind_test.py b/test/functional/rpcbind_test.py
index 0cf64beebd..0e8c3fa209 100755
--- a/test/functional/rpcbind_test.py
+++ b/test/functional/rpcbind_test.py
@@ -101,7 +101,7 @@ class RPCBindTest(BitcoinTestFramework):
 
         # Check that with invalid rpcallowip, we are denied
         self.run_allowip_test([non_loopback_ip], non_loopback_ip, defaultport)
-        assert_raises_jsonrpc(-342, "non-JSON HTTP response with '403 Forbidden' from server", self.run_allowip_test, ['1.1.1.1'], non_loopback_ip, defaultport)
+        assert_raises_rpc_error(-342, "non-JSON HTTP response with '403 Forbidden' from server", self.run_allowip_test, ['1.1.1.1'], non_loopback_ip, defaultport)
 
 if __name__ == '__main__':
     RPCBindTest().main()
diff --git a/test/functional/rpcnamedargs.py b/test/functional/rpcnamedargs.py
index b3cc681dad..c47212bddb 100755
--- a/test/functional/rpcnamedargs.py
+++ b/test/functional/rpcnamedargs.py
@@ -7,7 +7,7 @@
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    assert_raises_jsonrpc,
+    assert_raises_rpc_error,
 )
 
 class NamedArgumentTest(BitcoinTestFramework):
@@ -19,7 +19,7 @@ class NamedArgumentTest(BitcoinTestFramework):
         h = node.help(command='getblockchaininfo')
         assert(h.startswith('getblockchaininfo\n'))
 
-        assert_raises_jsonrpc(-8, 'Unknown named parameter', node.help, random='getblockchaininfo')
+        assert_raises_rpc_error(-8, 'Unknown named parameter', node.help, random='getblockchaininfo')
 
         h = node.getblockhash(height=0)
         node.getblock(blockhash=h)
diff --git a/test/functional/segwit.py b/test/functional/segwit.py
index de5c8c6c87..6ecade7cb6 100755
--- a/test/functional/segwit.py
+++ b/test/functional/segwit.py
@@ -99,11 +99,11 @@ class SegWitTest(BitcoinTestFramework):
         sync_blocks(self.nodes)
 
     def fail_accept(self, node, error_msg, txid, sign, redeem_script=""):
-        assert_raises_jsonrpc(-26, error_msg, send_to_witness, 1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
+        assert_raises_rpc_error(-26, error_msg, send_to_witness, 1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
 
     def fail_mine(self, node, txid, sign, redeem_script=""):
         send_to_witness(1, node, getutxo(txid), self.pubkey[0], False, Decimal("49.998"), sign, redeem_script)
-        assert_raises_jsonrpc(-1, "CreateNewBlock: TestBlockValidity failed", node.generate, 1)
+        assert_raises_rpc_error(-1, "CreateNewBlock: TestBlockValidity failed", node.generate, 1)
         sync_blocks(self.nodes)
 
     def run_test(self):
@@ -452,11 +452,7 @@ class SegWitTest(BitcoinTestFramework):
         for i in importlist:
             # import all generated addresses. The wallet already has the private keys for some of these, so catch JSON RPC
             # exceptions and continue.
-            try:
-                self.nodes[0].importaddress(i,"",False,True)
-            except JSONRPCException as exp:
-                assert_equal(exp.error["message"], "The wallet already contains the private key for this address or script")
-                assert_equal(exp.error["code"], -4)
+            try_rpc(-4, "The wallet already contains the private key for this address or script", self.nodes[0].importaddress, i, "", False, True)
 
         self.nodes[0].importaddress(script_to_p2sh(op0)) # import OP_0 as address only
         self.nodes[0].importaddress(multisig_without_privkey_address) # Test multisig_without_privkey
@@ -469,7 +465,7 @@ class SegWitTest(BitcoinTestFramework):
         # addwitnessaddress should refuse to return a witness address if an uncompressed key is used
         # note that no witness address should be returned by unsolvable addresses
         for i in uncompressed_spendable_address + uncompressed_solvable_address + unknown_address + unsolvable_address:
-            assert_raises_jsonrpc(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
+            assert_raises_rpc_error(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
 
         # addwitnessaddress should return a witness addresses even if keys are not in the wallet
         self.nodes[0].addwitnessaddress(multisig_without_privkey_address)
@@ -552,7 +548,7 @@ class SegWitTest(BitcoinTestFramework):
         # premature_witaddress are not accepted until the script is added with addwitnessaddress first
         for i in uncompressed_spendable_address + uncompressed_solvable_address + premature_witaddress:
             # This will raise an exception
-            assert_raises_jsonrpc(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
+            assert_raises_rpc_error(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
 
         # after importaddress it should pass addwitnessaddress
         v = self.nodes[0].validateaddress(compressed_solvable_address[1])
diff --git a/test/functional/signrawtransactions.py b/test/functional/signrawtransactions.py
index b47ef93955..9a45d53cb8 100755
--- a/test/functional/signrawtransactions.py
+++ b/test/functional/signrawtransactions.py
@@ -82,7 +82,7 @@ class SignRawTransactionsTest(BitcoinTestFramework):
             assert_equal(decodedRawTx["vin"][i]["vout"], inp["vout"])
 
         # Make sure decoderawtransaction throws if there is extra data
-        assert_raises(JSONRPCException, self.nodes[0].decoderawtransaction, rawTx + "00")
+        assert_raises_rpc_error(-22, "TX decode failed", self.nodes[0].decoderawtransaction, rawTx + "00")
 
         rawTxSigned = self.nodes[0].signrawtransaction(rawTx, scripts, privKeys)
 
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py
index 64966adb97..102c903018 100644
--- a/test/functional/test_framework/util.py
+++ b/test/functional/test_framework/util.py
@@ -51,6 +51,8 @@ def assert_raises(exc, fun, *args, **kwds):
 def assert_raises_message(exc, message, fun, *args, **kwds):
     try:
         fun(*args, **kwds)
+    except JSONRPCException:
+        raise AssertionError("Use assert_raises_rpc_error() to test RPC failures")
     except exc as e:
         if message is not None and message not in e.error['message']:
             raise AssertionError("Expected substring not found:" + e.error['message'])
@@ -83,7 +85,7 @@ def assert_raises_process_error(returncode, output, fun, *args, **kwds):
     else:
         raise AssertionError("No exception raised")
 
-def assert_raises_jsonrpc(code, message, fun, *args, **kwds):
+def assert_raises_rpc_error(code, message, fun, *args, **kwds):
     """Run an RPC and verify that a specific JSONRPC exception code and message is raised.
 
     Calls function `fun` with arguments `args` and `kwds`. Catches a JSONRPCException
@@ -99,6 +101,13 @@ def assert_raises_jsonrpc(code, message, fun, *args, **kwds):
         args*: positional arguments for the function.
         kwds**: named arguments for the function.
     """
+    assert try_rpc(code, message, fun, *args, **kwds), "No exception raised"
+
+def try_rpc(code, message, fun, *args, **kwds):
+    """Tries to run an rpc command.
+
+    Test against error code and message if the rpc fails.
+    Returns whether a JSONRPCException was raised."""
     try:
         fun(*args, **kwds)
     except JSONRPCException as e:
@@ -107,10 +116,11 @@ def assert_raises_jsonrpc(code, message, fun, *args, **kwds):
             raise AssertionError("Unexpected JSONRPC error code %i" % e.error["code"])
         if (message is not None) and (message not in e.error['message']):
             raise AssertionError("Expected substring not found:" + e.error['message'])
+        return True
     except Exception as e:
         raise AssertionError("Unexpected exception raised: " + type(e).__name__)
     else:
-        raise AssertionError("No exception raised")
+        return False
 
 def assert_is_hex_string(string):
     try:
diff --git a/test/functional/wallet-dump.py b/test/functional/wallet-dump.py
index 12db95e5d9..47de8777a6 100755
--- a/test/functional/wallet-dump.py
+++ b/test/functional/wallet-dump.py
@@ -7,7 +7,7 @@
 import os
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (assert_equal, assert_raises_jsonrpc)
+from test_framework.util import (assert_equal, assert_raises_rpc_error)
 
 
 def read_dump(file_name, addrs, hd_master_addr_old):
@@ -106,7 +106,7 @@ class WalletDumpTest(BitcoinTestFramework):
         assert_equal(found_addr_rsv, 90*2) 
 
         # Overwriting should fail
-        assert_raises_jsonrpc(-8, "already exists", self.nodes[0].dumpwallet, tmpdir + "/node0/wallet.unencrypted.dump")
+        assert_raises_rpc_error(-8, "already exists", self.nodes[0].dumpwallet, tmpdir + "/node0/wallet.unencrypted.dump")
 
 if __name__ == '__main__':
     WalletDumpTest().main ()
diff --git a/test/functional/wallet-encryption.py b/test/functional/wallet-encryption.py
index ce1e7744e9..db62e1e30f 100755
--- a/test/functional/wallet-encryption.py
+++ b/test/functional/wallet-encryption.py
@@ -9,7 +9,7 @@ import time
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    assert_raises_jsonrpc,
+    assert_raises_rpc_error,
 )
 
 class WalletEncryptionTest(BitcoinTestFramework):
@@ -32,7 +32,7 @@ class WalletEncryptionTest(BitcoinTestFramework):
         self.start_node(0)
 
         # Test that the wallet is encrypted
-        assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
+        assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
 
         # Check that walletpassphrase works
         self.nodes[0].walletpassphrase(passphrase, 2)
@@ -40,20 +40,20 @@ class WalletEncryptionTest(BitcoinTestFramework):
 
         # Check that the timeout is right
         time.sleep(2)
-        assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
+        assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
 
         # Test wrong passphrase
-        assert_raises_jsonrpc(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase + "wrong", 10)
+        assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase + "wrong", 10)
 
         # Test walletlock
         self.nodes[0].walletpassphrase(passphrase, 84600)
         assert_equal(privkey, self.nodes[0].dumpprivkey(address))
         self.nodes[0].walletlock()
-        assert_raises_jsonrpc(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
+        assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
 
         # Test passphrase changes
         self.nodes[0].walletpassphrasechange(passphrase, passphrase2)
-        assert_raises_jsonrpc(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase, 10)
+        assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase, 10)
         self.nodes[0].walletpassphrase(passphrase2, 10)
         assert_equal(privkey, self.nodes[0].dumpprivkey(address))
 
diff --git a/test/functional/wallet.py b/test/functional/wallet.py
index a643684c7f..9d8ae50354 100755
--- a/test/functional/wallet.py
+++ b/test/functional/wallet.py
@@ -101,7 +101,7 @@ class WalletTest(BitcoinTestFramework):
         unspent_0 = self.nodes[2].listunspent()[0]
         unspent_0 = {"txid": unspent_0["txid"], "vout": unspent_0["vout"]}
         self.nodes[2].lockunspent(False, [unspent_0])
-        assert_raises_jsonrpc(-4, "Insufficient funds", self.nodes[2].sendtoaddress, self.nodes[2].getnewaddress(), 20)
+        assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].sendtoaddress, self.nodes[2].getnewaddress(), 20)
         assert_equal([unspent_0], self.nodes[2].listlockunspent())
         self.nodes[2].lockunspent(True, [unspent_0])
         assert_equal(len(self.nodes[2].listlockunspent()), 0)
@@ -286,10 +286,10 @@ class WalletTest(BitcoinTestFramework):
         assert_equal(txObj['amount'], Decimal('-0.0001'))
 
         # This will raise an exception because the amount type is wrong
-        assert_raises_jsonrpc(-3, "Invalid amount", self.nodes[0].sendtoaddress, self.nodes[2].getnewaddress(), "1f-4")
+        assert_raises_rpc_error(-3, "Invalid amount", self.nodes[0].sendtoaddress, self.nodes[2].getnewaddress(), "1f-4")
 
         # This will raise an exception since generate does not accept a string
-        assert_raises_jsonrpc(-1, "not an integer", self.nodes[0].generate, "2")
+        assert_raises_rpc_error(-1, "not an integer", self.nodes[0].generate, "2")
 
         # Import address and private key to check correct behavior of spendable unspents
         # 1. Send some coins to generate new UTXO
@@ -422,7 +422,7 @@ class WalletTest(BitcoinTestFramework):
 
         node0_balance = self.nodes[0].getbalance()
         # With walletrejectlongchains we will not create the tx and store it in our wallet.
-        assert_raises_jsonrpc(-4, "Transaction has too long of a mempool chain", self.nodes[0].sendtoaddress, sending_addr, node0_balance - Decimal('0.01'))
+        assert_raises_rpc_error(-4, "Transaction has too long of a mempool chain", self.nodes[0].sendtoaddress, sending_addr, node0_balance - Decimal('0.01'))
 
         # Verify nothing new in wallet
         assert_equal(total_txs, len(self.nodes[0].listtransactions("*",99999)))
diff --git a/test/functional/zapwallettxes.py b/test/functional/zapwallettxes.py
index 83b11035c8..8cd622dc8e 100755
--- a/test/functional/zapwallettxes.py
+++ b/test/functional/zapwallettxes.py
@@ -17,7 +17,7 @@
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    assert_raises_jsonrpc,
+    assert_raises_rpc_error,
     wait_until,
 )
 
@@ -72,7 +72,7 @@ class ZapWalletTXesTest (BitcoinTestFramework):
         assert_equal(self.nodes[0].gettransaction(txid1)['txid'], txid1)
 
         # This will raise an exception because the unconfirmed transaction has been zapped
-        assert_raises_jsonrpc(-5, 'Invalid or non-wallet transaction id', self.nodes[0].gettransaction, txid2)
+        assert_raises_rpc_error(-5, 'Invalid or non-wallet transaction id', self.nodes[0].gettransaction, txid2)
 
 if __name__ == '__main__':
     ZapWalletTXesTest().main()