lightning/test/lnd_methods/offchain/test_update_connected_watchtower.js

Lightning Network client library

const {rejects} = require('node:assert').strict;
const test = require('node:test');

const {updateConnectedWatchtower} = require('./../../../lnd_methods');

const makeLnd = err => {
  return {
    tower_client: {
      addTower: ({}, cbk) => cbk(),
      removeTower: ({}, cbk) => cbk(err),
    },
  };
};

const makeArgs = override => {
  const args = {
    add_socket: 'add',
    lnd: makeLnd(),
    public_key: Buffer.alloc(33, 3).toString('hex'),
    remove_socket: 'remove',
  };

  Object.keys(override || {}).forEach(key => args[key] = override[key]);

  return args;
};

const tests = [
  {
    args: makeArgs({add_socket: undefined, remove_socket: undefined}),
    description: 'An add or remove socket is required',
    error: [400, 'ExpectedASocketToAddToOrRemoveFromWatchtower'],
  },
  {
    args: makeArgs({lnd: undefined}),
    description: 'LND is required',
    error: [400, 'ExpectedAuthenticatedLndToUpdateWatchtower'],
  },
  {
    args: makeArgs({public_key: undefined}),
    description: 'A public key is required',
    error: [400, 'ExpectedPublicKeyToUpdateWatchtower'],
  },
  {
    args: makeArgs({
      lnd: makeLnd({
        message: '12 UNIMPLEMENTED: unknown service wtclientrpc.WatchtowerClient',
      }),
    }),
    description: 'Unimplemented error is returned',
    error: [501, 'ExpectedWatchtowerClientLndToGetPolicy'],
  },
  {
    args: makeArgs({
      lnd: {
        tower_client: {
          addTower: ({}, cbk) => cbk('err'),
          removeTower: ({}, cbk) => cbk(),
        },
      },
    }),
    description: 'Add socket error is returned',
    error: [503, 'UnexpectedAddSocketToWatchtowerError', {err: 'err'}],
  },
  {
    args: makeArgs({add_socket: undefined, lnd: makeLnd('err')}),
    description: 'Server error is returned',
    error: [503, 'UnexpectedRemoveSocketFromTowerError', {err: 'err'}],
  },
  {
    args: makeArgs({remove_socket: undefined}),
    description: 'A socket is added',
  },
  {
    args: makeArgs({}),
    description: 'A socket is added and a socket is removed',
  },
];

tests.forEach(({args, description, error, expected}) => {
  return test(description, async () => {
    if (!!error) {
      await rejects(updateConnectedWatchtower(args), error, 'Got error');
    } else {
      await updateConnectedWatchtower(args);
    }

    return;
  });
});