mongoose/test/utils.test.js

Mongoose MongoDB ORM

/**
 * Module dependencies.
 */

require('./common');

var utils = require('../lib/utils')
  , StateMachine = require('../lib/statemachine')
  , ObjectId = require('../lib/types/objectid')

/**
 * Setup.
 */

var ActiveRoster = StateMachine.ctor('require', 'init', 'modify');

/**
 * Test.
 */

module.exports = {

  'should detect a path as required if it has been required': function () {
    var ar = new ActiveRoster();
    ar.require('hello');
    ar.stateOf('hello').should.equal('require');
  },

  'should detect a path as inited if it has been inited': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.stateOf('hello').should.equal('init');
  },
  
  'should detect a path as modified': function () {
    var ar = new ActiveRoster();
    ar.modify('hello');
    ar.stateOf('hello').should.equal('modify');
  },

  'should remove a path from an old state upon a state change': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.modify('hello');
    ar.states.init.should.not.have.property('hello');
    ar.states.modify.should.have.property('hello');
  },


  'forEach should be able to iterate through the paths belonging to one state': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.init('goodbye');
    ar.modify('world');
    ar.require('foo');
    ar.forEach('init', function (path) {
      ['hello', 'goodbye'].should.contain(path);
    });
  },

  'forEach should be able to iterate through the paths in the union of two or more states': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.init('goodbye');
    ar.modify('world');
    ar.require('foo');
    ar.forEach('modify', 'require', function (path) {
      ['world', 'foo'].should.contain(path);
    });
  },

  'forEach should iterate through all paths that have any state if given no state arguments': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.init('goodbye');
    ar.modify('world');
    ar.require('foo');
    ar.forEach(function (path) {
      ['hello', 'goodbye', 'world', 'foo'].should.contain(path);
    });
  },

  'should be able to detect if at least one path exists in a set of states': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.modify('world');
    ar.some('init').should.be.true;
    ar.some('modify').should.be.true;
    ar.some('require').should.be.false;
    ar.some('init', 'modify').should.be.true;
    ar.some('init', 'require').should.be.true;
    ar.some('modify', 'require').should.be.true;
  },

  'should be able to `map` over the set of paths in a given state': function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.modify('world');
    ar.require('iAmTheWalrus');
    var suffixedPaths = ar.map('init', 'modify', function (path) {
      return path + '-suffix';
    });
    suffixedPaths.should.eql(['hello-suffix', 'world-suffix']);
  },

  "should `map` over all states' paths if no states are specified in a `map` invocation": function () {
    var ar = new ActiveRoster();
    ar.init('hello');
    ar.modify('world');
    ar.require('iAmTheWalrus');
    var suffixedPaths = ar.map(function (path) {
      return path + '-suffix';
    });
    suffixedPaths.should.eql(['iAmTheWalrus-suffix', 'hello-suffix', 'world-suffix']);
  },

  'test utils.options': function () {
    var o = { a: 1, b: 2, c: 3, 0: 'zero1' };
    var defaults = { b: 10, d: 20, 0: 'zero2' };
    var result = utils.options(defaults, o);
    result.a.should.equal(1);
    result.b.should.equal(2);
    result.c.should.equal(3);
    result.d.should.equal(20);
    o.d.should.equal(result.d);
    result['0'].should.equal('zero1');

    var result2 = utils.options(defaults);
    result2.b.should.equal(10);
    result2.d.should.equal(20);
    result2['0'].should.equal('zero2');

    // same properties/vals
    defaults.should.eql(result2);

    // same object
    defaults.should.not.equal(result2);
  },

  'test deepEquals on ObjectIds': function () {
    var s = (new ObjectId).toString();

    var a = new ObjectId(s)
      , b = new ObjectId(s);

    utils.deepEqual(a, b).should.be.true;
    utils.deepEqual(a, a).should.be.true;
    utils.deepEqual(a, new ObjectId).should.be.false;
  }

};