kepikoi

const {keccak256} = require("js-sha3");
const assert = require("assert");

/**
 * Extract the Ethereum address from a secp256k1 public key as returned by `GET https://api.tangany.com/v1/wallet/:wallet`
 * @param {string | Buffer} pub - secp256k1 public key of the wallet
 * @return {string} - Ethereum address of the wallet
 * @example
 * convertPublicKeyToEthereumAddress("04150341ab9f7b9a3d0eafc6180eac39b65b34da30bddbd13cee1bbdabf4b420b79962342664902c31c3da7376eaf65adeb7dfffccba1de1e11fb6779b428a3c31"));
 */

kepikoi

/**
 * Converts a secp256k1 public key as returned by `GET https://api.tangany.com/v1/wallet/:wallet` to OpenSSL PEM format
 * @param {string} publicKey - hexadecimal key to convert
 * @return PEM-formatted representation of given public key
 * @example
 * const pem = convertPublicKeyToPEM("04f500418025ba3babca935e9f7617c438210ab72ae3ece0b25e5dff579c31ddd1549ab1ee4f0dcb53e51aacceb15147af6f4a1610040aa8e042a0f3e208496257");
 */
function convertPublicKeyToPEM (publicKey) {
	let key = Buffer.from(publicKey, "hex");
	

kepikoi

//test suite for math-api.js module, which mocks the api.mathjs.org api responses

const
    {test} = require("tape")
    , proxyquire = require("proxyquire")
    , mathjs = require("mathjs")
    , {URL} = require("url")
    , requestPromiseStub = {
        //request-promise stub that tests the argument and mocks the api response
        "request-promise"(u) {

kepikoi

const Event = require("events");
const emitter = new Event();
const eventName = Symbol();

/**
 * Echos given message to the callback function after a random amount of time
 * @param {String} message - message that will be echoed back
 * @param {Function} callback - function the echo will be passed to
 */
function belatedEcho(message, callback) {