def METHOD_NAME(self):
    # 0 => Username
    # 1 => Password (Hashed)
    # 2 => Permissions
    # 3 => Password Plaintext
    self.users = [
        ["user1", "50358aa884c841648e0700b073c32b2e$b73e95fff0748cc0b517859d2ca47d9bac1aa78231f3e48fa9222b612bd2083e", "getbestblockhash,getblockcount,", "12345"],
        ["user2", "8650ba41296f62092377a38547f361de$4620db7ba063ef4e2f7249853e9f3c5c3592a9619a759e3e6f1c63f2e22f1d21", "getblockcount", "54321"]
    ]
    # For exceptions
    self.strange_users = [
        # Test empty
        ["strangedude", "62d67dffec03836edd698314f1b2be62$c2fb4be29bb0e3646298661123cf2d8629640979cabc268ef05ea613ab54068d", ":", "s7R4nG3R7H1nGZ"],
        ["strangedude2", "575c012c7fe4b1e83b9d809412da3ef7$09f448d0acfc19924dd62ecb96004d3c2d4b91f471030dfe43c6ea64a8f658c1", "", "s7R4nG3R7H1nGZ"],
        # Test trailing comma
        ["strangedude3", "23189c561b5975a56f4cf94030495d61$3a2f6aac26351e2257428550a553c4c1979594e36675bbd3db692442387728c0", ":getblockcount,", "s7R4nG3R7H1nGZ"],
        # Test overwrite
        ["strangedude4", "990c895760a70df83949e8278665e19a$8f0906f20431ff24cb9e7f5b5041e4943bdf2a5c02a19ef4960dcf45e72cde1c", ":getblockcount, getbestblockhash", "s7R4nG3R7H1nGZ"],
        ["strangedude4", "990c895760a70df83949e8278665e19a$8f0906f20431ff24cb9e7f5b5041e4943bdf2a5c02a19ef4960dcf45e72cde1c", ":getblockcount", "s7R4nG3R7H1nGZ"],
        # Testing the same permission twice
        ["strangedude5", "d12c6e962d47a454f962eb41225e6ec8$2dd39635b155536d3c1a2e95d05feff87d5ba55f2d5ff975e6e997a836b717c9", ":getblockcount,getblockcount", "s7R4nG3R7H1nGZ"]
    ]
    # These commands shouldn't be allowed for any user to test failures
    self.never_allowed = ["getnetworkinfo"]
    with open(self.nodes[0].datadir_path / "bitcoin.conf", "a", encoding="utf8") as f:
        f.write("\nrpcwhitelistdefault=0\n")
        for user in self.users:
            f.write("rpcauth=" + user[0] + ":" + user[1] + "\n")
            f.write("rpcwhitelist=" + user[0] + ":" + user[2] + "\n")
        # Special cases
        for strangedude in self.strange_users:
            f.write("rpcauth=" + strangedude[0] + ":" + strangedude[1] + "\n")
            f.write("rpcwhitelist=" + strangedude[0] + strangedude[2] + "\n")
    self.restart_node(0)
    for user in self.users:
        permissions = user[2].replace(" ", "").split(",")
        # Pop all empty items
        i = 0
        while i < len(permissions):
            if permissions[i] == '':
                permissions.pop(i)
            i += 1
        for permission in permissions:
            self.log.info("[" + user[0] + "]: Testing a permitted permission (" + permission + ")")
            assert_equal(200, rpccall(self.nodes[0], user, permission).status)
        for permission in self.never_allowed:
            self.log.info("[" + user[0] + "]: Testing a non permitted permission (" + permission + ")")
            assert_equal(403, rpccall(self.nodes[0], user, permission).status)
    # Now test the strange users
    for permission in self.never_allowed:
        self.log.info("Strange test 1")
        assert_equal(403, rpccall(self.nodes[0], self.strange_users[0], permission).status)
    for permission in self.never_allowed:
        self.log.info("Strange test 2")
        assert_equal(403, rpccall(self.nodes[0], self.strange_users[1], permission).status)
    self.log.info("Strange test 3")
    assert_equal(200, rpccall(self.nodes[0], self.strange_users[2], "getblockcount").status)
    self.log.info("Strange test 4")
    assert_equal(403, rpccall(self.nodes[0], self.strange_users[3], "getbestblockhash").status)
    self.log.info("Strange test 5")
    assert_equal(200, rpccall(self.nodes[0], self.strange_users[4], "getblockcount").status)