Function assert

test/testBookIn.js:162–171

(value, failMessage, passMessage)

let passed = true;
const assert = function(value, failMessage, passMessage) {
  if (!value) {
    if (failMessage) {
      console.log(failMessage);
    }
    passed = false;
  } else if (passMessage) {
    console.log(passMessage);
  }
};

const assertFont = function(value, expected, address) {
  // console.log('assertFont', address, JSON.stringify(value), JSON.stringify(expected));