diff --git a/test/functional/rpc_whitelist.py b/test/functional/rpc_whitelist.py
index a35c89fadd2..b103289fab3 100755
--- a/test/functional/rpc_whitelist.py
+++ b/test/functional/rpc_whitelist.py
@@ -33,6 +33,7 @@ class RPCWhitelistTest(BitcoinTestFramework):
 
     def set_test_params(self):
         self.num_nodes = 1
+        self.supports_cli = False
 
     def run_test(self):
         # 0 => Username
diff --git a/test/functional/wallet_encryption.py b/test/functional/wallet_encryption.py
index 10f2c3c81d4..b54852b7c33 100755
--- a/test/functional/wallet_encryption.py
+++ b/test/functional/wallet_encryption.py
@@ -90,17 +90,18 @@ class WalletEncryptionTest(BitcoinTestFramework):
         assert_equal(actual_time, expected_time)
         self.nodes[0].walletlock()
 
-        # Test passphrase with null characters
-        passphrase_with_nulls = "Phrase\0With\0Nulls"
-        self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
-        # walletpassphrasechange should not stop at null characters
-        assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase_with_nulls.partition("\0")[0], 10)
-        assert_raises_rpc_error(-14, "The wallet passphrase entered was incorrect", self.nodes[0].walletpassphrasechange, passphrase_with_nulls.partition("\0")[0], "abc")
-        assert_raises_rpc_error(-14, "wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "\0", 10)
-        assert_raises_rpc_error(-14, "The old wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrasechange, passphrase_with_nulls + "\0", "abc")
-        with WalletUnlock(self.nodes[0], passphrase_with_nulls):
-            sig = self.nodes[0].signmessage(address, msg)
-            assert self.nodes[0].verifymessage(address, sig, msg)
+        if not self.options.usecli: # can't be done with the test framework for cli since subprocess.Popen doesn't allow null characters
+            # Test passphrase with null characters
+            passphrase_with_nulls = "Phrase\0With\0Nulls"
+            self.nodes[0].walletpassphrasechange(passphrase2, passphrase_with_nulls)
+            # walletpassphrasechange should not stop at null characters
+            assert_raises_rpc_error(-14, "wallet passphrase entered was incorrect", self.nodes[0].walletpassphrase, passphrase_with_nulls.partition("\0")[0], 10)
+            assert_raises_rpc_error(-14, "The wallet passphrase entered was incorrect", self.nodes[0].walletpassphrasechange, passphrase_with_nulls.partition("\0")[0], "abc")
+            assert_raises_rpc_error(-14, "wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrase, passphrase_with_nulls + "\0", 10)
+            assert_raises_rpc_error(-14, "The old wallet passphrase entered is incorrect. It contains a null character (ie - a zero byte)", self.nodes[0].walletpassphrasechange, passphrase_with_nulls + "\0", "abc")
+            with WalletUnlock(self.nodes[0], passphrase_with_nulls):
+                sig = self.nodes[0].signmessage(address, msg)
+                assert self.nodes[0].verifymessage(address, sig, msg)
 
         self.log.info("Test that wallets without private keys cannot be encrypted")
         self.nodes[0].createwallet(wallet_name="noprivs", disable_private_keys=True)
diff --git a/test/functional/wallet_fundrawtransaction.py b/test/functional/wallet_fundrawtransaction.py
index a3b19847335..2a0af8efe00 100755
--- a/test/functional/wallet_fundrawtransaction.py
+++ b/test/functional/wallet_fundrawtransaction.py
@@ -49,6 +49,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         # whitelist peers to speed up tx relay / mempool sync
         self.noban_tx_relay = True
         self.rpc_timeout = 90  # to prevent timeouts in `test_transaction_too_large`
+        self.supports_cli = False
 
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
diff --git a/test/functional/wallet_send.py b/test/functional/wallet_send.py
index 067df43e50a..21761775c53 100755
--- a/test/functional/wallet_send.py
+++ b/test/functional/wallet_send.py
@@ -29,6 +29,7 @@ class WalletSendTest(BitcoinTestFramework):
         self.num_nodes = 2
         # whitelist peers to speed up tx relay / mempool sync
         self.noban_tx_relay = True
+        self.supports_cli = False
         self.extra_args = [
             ["-walletrbf=1"],
             ["-walletrbf=1"]