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#!/usr/bin/env python3
# Copyright (c) 2016-2020 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 using named arguments for RPCs."""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
)
class NamedArgumentTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.supports_cli = False
def run_test(self):
node = self.nodes[0]
h = node.help(command='getblockchaininfo')
assert h.startswith('getblockchaininfo\n')
assert_raises_rpc_error(-8, 'Unknown named parameter', node.help, random='getblockchaininfo')
h = node.getblockhash(height=0)
node.getblock(blockhash=h)
assert_equal(node.echo(), [])
assert_equal(node.echo(arg0=0,arg9=9), [0] + [None]*8 + [9])
assert_equal(node.echo(arg1=1), [None, 1])
assert_equal(node.echo(arg9=None), [None]*10)
assert_equal(node.echo(arg0=0,arg3=3,arg9=9), [0] + [None]*2 + [3] + [None]*5 + [9])
assert_equal(node.echo(0, 1, arg3=3, arg5=5), [0, 1, None, 3, None, 5])
assert_raises_rpc_error(-8, "Parameter arg1 specified twice both as positional and named argument", node.echo, 0, 1, arg1=1)
assert_raises_rpc_error(-8, "Parameter arg1 specified twice both as positional and named argument", node.echo, 0, None, 2, arg1=1)
if __name__ == '__main__':
NamedArgumentTest().main()
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