Show that a load of a non-existant key hangs gun database, but a get does not.

gun-load-hang.js

'use strict'
const tape = require('tape')
const _test = require('tape-promise').default // <---- notice 'default'
const test = _test(tape) // decorate tape
const Gun = require('gun');
const GunLoad = require('gun/lib/load.js');
const mkdirp = require('mkdirp');
const { Random } = require('random-js');
const random = new Random();
const _ = require('underscore');

test('read a non-existant key using get', function (t) {
  // gundb doesn't do this correctly, it errors out with a mkdir message
  mkdirp.sync('testdb');  
  // don't use gun's default database, else state is saved across tests, which is an anti-pattern
  const dbfilename = 'testdb/' + random.string(16) + '.json';

  const gun = Gun({peers: [], multicast: false, file: dbfilename, web: undefined});
  const nosuchkey = 'thekey';
  const root = 'theroot';

  gun.get(root).get(nosuchkey).once(function(data, key) {
    t.equal(data, undefined, 'non-existant key should be undefined when read with get');
    console.log(data);
    t.end();
  });
    

});


test('read a non-existant key using load', function (t) {
  // gundb doesn't do this correctly, it errors out with a mkdir message
  mkdirp.sync('testdb');
  // don't use gun's default database, else state is saved across tests, which is an anti-pattern
  const dbfilename = 'testdb/' + random.string(16) + '.json';
  
  const gun = Gun({peers: [], multicast: false, file: dbfilename, web: undefined});
  const nosuchkey = 'thekey';
  const root = 'theroot'; 
  
  gun.get(root).get(nosuchkey).load(function(data, key) {
    console.log(key);
    console.log(data);
    t.equal(data, undefined, 'non-existant key should be undefined when read with load');
    t.end();
  });
  
  
});

// gundb doesn't unref its internal timers and also multicast
// so the process to exit.
test('force test to end', function(t) {
  t.ok(true, 'forcing test to end with process.exit');
  t.end();
  process.exit();
});