loopback/test/checkpoint.test.js

var async = require('async');
var loopback = require('../');

// create a unique Checkpoint model
var Checkpoint = loopback.Checkpoint.extend('TestCheckpoint');

var memory = loopback.createDataSource({
  connector: loopback.Memory
});
Checkpoint.attachTo(memory);

describe('Checkpoint', function() {
  describe('current()', function() {
    it('returns the highest `seq` value', function(done) {
      async.series([
        Checkpoint.create.bind(Checkpoint),
        Checkpoint.create.bind(Checkpoint),
        function(next) {
          Checkpoint.current(function(err, seq) {
            if (err) next(err);
            expect(seq).to.equal(3);
            next();
          });
        }
      ], done);
    });
  });
});