/
mock-rippled.js
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/
mock-rippled.js
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'use strict';
const _ = require('lodash');
const assert = require('assert');
const WebSocketServer = require('ws').Server;
const EventEmitter2 = require('eventemitter2').EventEmitter2;
const fixtures = require('./fixtures/api/rippled');
const addresses = require('./fixtures/addresses');
const hashes = require('./fixtures/hashes');
function isUSD(json) {
return json === 'USD' || json === '0000000000000000000000005553440000000000';
}
function isBTC(json) {
return json === 'BTC' || json === '0000000000000000000000004254430000000000';
}
module.exports = function(port) {
const mock = new WebSocketServer({port: port});
_.assign(mock, EventEmitter2.prototype);
const close = mock.close;
mock.close = function() {
if (mock.expectedRequests !== undefined) {
const allRequestsMade = _.every(mock.expectedRequests, function(counter) {
return counter === 0;
});
if (!allRequestsMade) {
const json = JSON.stringify(mock.expectedRequests, null, 2);
const indent = ' ';
const indented = indent + json.replace(/\n/g, '\n' + indent);
assert(false, 'Not all expected requests were made:\n' + indented);
}
}
close.call(mock);
};
mock.expect = function(expectedRequests) {
mock.expectedRequests = expectedRequests;
};
mock.once('connection', function(conn) {
conn.on('message', function(requestJSON) {
const request = JSON.parse(requestJSON);
mock.emit('request_' + request.command, request, conn);
});
});
mock.onAny(function() {
if (this.event.indexOf('request_') !== 0) {
return;
}
if (mock.listeners(this.event).length === 0) {
throw new Error('No event handler registered for ' + this.event);
}
if (mock.expectedRequests === undefined) {
return; // TODO: fail here to require expectedRequests
}
const expectedCount = mock.expectedRequests[this.event];
if (expectedCount === undefined || expectedCount === 0) {
throw new Error('Unexpected request: ' + this.event);
}
mock.expectedRequests[this.event] -= 1;
});
mock.on('request_server_info', function(request, conn) {
assert.strictEqual(request.command, 'server_info');
conn.send(fixtures.misc.serverInfoResponse(request));
});
mock.on('request_subscribe', function(request, conn) {
assert.strictEqual(request.command, 'subscribe');
if (request.accounts) {
assert.strictEqual(request.accounts[0], addresses.ACCOUNT);
} else {
assert.deepEqual(request.streams, ['ledger', 'server']);
}
conn.send(fixtures.misc.subscribeResponse(request));
});
mock.on('request_account_info', function(request, conn) {
assert.strictEqual(request.command, 'account_info');
if (request.account === addresses.ACCOUNT) {
conn.send(fixtures.misc.accountInfoResponse(request));
} else if (request.account === addresses.NOTFOUND) {
conn.send(fixtures.misc.accountNotFoundResponse(request));
} else {
assert(false, 'Unrecognized account address: ' + request.account);
}
});
mock.on('request_ledger', function(request, conn) {
assert.strictEqual(request.command, 'ledger');
conn.send(fixtures.misc.ledgerResponse(request));
});
mock.on('request_tx', function(request, conn) {
assert.strictEqual(request.command, 'tx');
if (request.transaction === hashes.VALID_TRANSACTION_HASH) {
conn.send(fixtures.misc.transactionResponse(request));
} else if (request.transaction ===
'4FB3ADF22F3C605E23FAEFAA185F3BD763C4692CAC490D9819D117CD33BFAA1B') {
const transaction = fixtures.tx.AccountSet;
conn.send(fixtures.misc.transactionResponse(request, transaction));
} else if (request.transaction ===
'10A6FB4A66EE80BED46AAE4815D7DC43B97E944984CCD5B93BCF3F8538CABC51') {
const transaction = fixtures.tx.OfferCreate;
conn.send(fixtures.misc.transactionResponse(request, transaction));
} else if (request.transaction ===
'809335DD3B0B333865096217AA2F55A4DF168E0198080B3A090D12D88880FF0E') {
const transaction = fixtures.tx.OfferCancel;
conn.send(fixtures.misc.transactionResponse(request, transaction));
} else if (request.transaction === hashes.NOTFOUND_TRANSACTION_HASH) {
conn.send(fixtures.misc.transactionNotFoundResponse(request));
} else {
assert(false, 'Unrecognized transaction hash: ' + request.transaction);
}
});
mock.on('request_submit', function(request, conn) {
assert.strictEqual(request.command, 'submit');
conn.send(fixtures.misc.submitResponse(request));
});
mock.on('request_account_lines', function(request, conn) {
if (request.account === addresses.ACCOUNT) {
conn.send(fixtures.misc.accountLinesResponse(request));
} else if (request.account === addresses.OTHER_ACCOUNT) {
conn.send(fixtures.misc.accountLinesCounterpartyResponse(request));
} else {
assert(false, 'Unrecognized account address: ' + request.account);
}
});
mock.on('request_account_tx', function(request, conn) {
if (request.account === addresses.ACCOUNT) {
const options = {
memos: [{
Memo: {
MemoFormat: '7274312E352E32',
MemoType: '636C69656E74'
}
}]
};
conn.send(fixtures.misc.accountTransactionsResponse(request, options));
} else {
assert(false, 'Unrecognized account address: ' + request.account);
}
});
mock.on('request_account_offers', function(request, conn) {
if (request.account === addresses.ACCOUNT) {
conn.send(fixtures.account_offers(request));
} else {
assert(false, 'Unrecognized account address: ' + request.account);
}
});
mock.on('request_book_offers', function(request, conn) {
if (isBTC(request.taker_gets.currency)
&& isUSD(request.taker_pays.currency)) {
conn.send(fixtures.book_offers.requestBookOffersBidsResponse(request));
} else if (isUSD(request.taker_gets.currency)
&& isBTC(request.taker_pays.currency)) {
conn.send(fixtures.book_offers.requestBookOffersAsksResponse(request));
} else {
assert(false, 'Unrecognized order book: ' + JSON.stringify(request));
}
});
mock.on('request_ripple_path_find', function(request, conn) {
const response = fixtures.ripple_path_find.generateIOUPaymentPaths(
request.id, request.source_account, request.destination_account,
request.destination_amount);
conn.send(response);
});
return mock;
};