Function test_payment_failed_persistence

tests/test_pay.py:449–496

(node_factory, executor)

@pytest.mark.openchannel('v1')
@pytest.mark.openchannel('v2')
def test_payment_failed_persistence(node_factory, executor):
    # Start two nodes and open a channel.. die during payment.
    # Feerates identical so we don't get gratuitous commit to update them
    disconnect = ['+WIRE_COMMITMENT_SIGNED']
    if EXPERIMENTAL_DUAL_FUND:
        # We have to add an extra 'wire-commitment-signed' because
        # dual funding uses this for channel establishment also
        disconnect = ['=WIRE_COMMITMENT_SIGNED'] + disconnect
    l1 = node_factory.get_node(disconnect=disconnect,
                               options={'dev-no-reconnect': None},
                               may_reconnect=True,
                               feerates=(7500, 7500, 7500, 7500))
    l2 = node_factory.get_node(may_reconnect=True)
    l1.rpc.connect(l2.info['id'], 'localhost', l2.port)

    l1.fundchannel(l2, 100000)

    # Expires almost immediately, so it will fail.
    inv1 = l2.rpc.invoice(1000, 'inv1', 'inv1', 5)

    # Fire off a pay request, it'll get interrupted by a restart
    executor.submit(l1.rpc.pay, inv1['bolt11'])

    l1.daemon.wait_for_log(r'dev_disconnect: \+WIRE_COMMITMENT_SIGNED')

    print("Killing l1 in mid HTLC")
    l1.daemon.kill()

    # Restart l1, without disconnect stuff.
    del l1.daemon.opts['dev-no-reconnect']
    del l1.daemon.opts['dev-disconnect']

    # Make sure invoice has expired.
    time.sleep(5 + 1)

    # Should reconnect, and fail the payment
    l1.start()

    wait_for(lambda: l1.rpc.listsendpays()['payments'][0]['status'] != 'pending')

    payments = l1.rpc.listsendpays()['payments']
    invoices = l2.rpc.listinvoices('inv1')['invoices']
    assert len(invoices) == 1 and invoices[0]['status'] == 'expired'
    assert len(payments) == 1 and payments[0]['status'] == 'failed'

    # Another attempt should also fail.
    with pytest.raises(RpcError):
        l1.rpc.pay(inv1['bolt11'])


@pytest.mark.developer("needs DEVELOPER=1")