diff --git a/test/functional/rpc_users.py b/test/functional/rpc_users.py
--- a/test/functional/rpc_users.py
+++ b/test/functional/rpc_users.py
@@ -66,83 +66,43 @@
             f.write(rpcuser + "\n")
             f.write(rpcpassword + "\n")
 
-    def run_test(self):
-
-        #
-        # Check correctness of the rpcauth config option #
-        #
-        url = urllib.parse.urlparse(self.nodes[0].url)
-
-        password = "cA773lm788buwYe4g4WT+05pKyNruVKjQ25x3n0DQcM="
-        password2 = "8/F3uMDw4KSEbw96U3CA1C4X05dkHDN2BPFjTgZW4KI="
-
+    def test_auth(self, node, user, password):
         self.log.info('Correct...')
-        assert_equal(
-            200, call_with_auth(self.nodes[0], url.username,
-                                url.password).status)
+        assert_equal(200, call_with_auth(node, user, password).status)
 
-        # Use new authpair to confirm both work
-        self.log.info('Correct...')
+        self.log.info('Wrong...')
         assert_equal(
-            200, call_with_auth(self.nodes[0], 'rt', password).status)
+            401, call_with_auth(node, user, password + 'wrong').status)
 
-        # Wrong login name with rt's password
         self.log.info('Wrong...')
-
         assert_equal(
-            401, call_with_auth(self.nodes[0], 'rtwrong', password).status)
+            401, call_with_auth(node, user + 'wrong', password).status)
 
-        # Wrong password for rt
         self.log.info('Wrong...')
         assert_equal(
-            401, call_with_auth(self.nodes[0], 'rt',
+            401, call_with_auth(node, user + 'wrong',
                                 password + 'wrong').status)
 
-        # Correct for rt2
-        self.log.info('Correct...')
-        assert_equal(
-            200, call_with_auth(self.nodes[0], 'rt2', password2).status)
-
-        # Wrong password for rt2
-        self.log.info('Wrong...')
-        assert_equal(
-            401, call_with_auth(self.nodes[0], 'rt2',
-                                password2 + 'wrong').status)
+    def run_test(self):
+        ##################################################
+        # Check correctness of the rpcauth config option #
+        ##################################################
+        url = urllib.parse.urlparse(self.nodes[0].url)
 
-        # Correct for randomly generated user
-        self.log.info('Correct...')
-        assert_equal(
-            200, call_with_auth(self.nodes[0], self.user,
-                                self.password).status)
+        password = "cA773lm788buwYe4g4WT+05pKyNruVKjQ25x3n0DQcM="
+        password2 = "8/F3uMDw4KSEbw96U3CA1C4X05dkHDN2BPFjTgZW4KI="
 
-        # Wrong password for randomly generated user
-        self.log.info('Wrong...')
-        assert_equal(
-            401, call_with_auth(self.nodes[0], self.user,
-                                self.password + 'Wrong').status)
+        self.test_auth(self.nodes[0], url.username, url.password)
+        self.test_auth(self.nodes[0], 'rt', password)
+        self.test_auth(self.nodes[0], 'rt2', password2)
+        self.test_auth(self.nodes[0], self.user, self.password)
 
         ###############################################################
         # Check correctness of the rpcuser/rpcpassword config options #
         ###############################################################
         url = urllib.parse.urlparse(self.nodes[1].url)
 
-        # rpcuser and rpcpassword authpair
-        self.log.info('Correct...')
-        assert_equal(
-            200, call_with_auth(self.nodes[1], "rpcuser💻",
-                                "rpcpassword🔑").status)
-
-        # Wrong login name with rpcuser's password
-        self.log.info('Wrong...')
-        assert_equal(
-            401, call_with_auth(self.nodes[1], 'rpcuserwrong',
-                                'rpcpassword').status)
-
-        # Wrong password for rpcuser
-        self.log.info('Wrong...')
-        assert_equal(
-            401, call_with_auth(self.nodes[1], 'rpcuser',
-                                'rpcpasswordwrong').status)
+        self.test_auth(self.nodes[1], "rpcuser💻", "rpcpassword🔑")
 
 
 if __name__ == '__main__':