mongoose-cursor-pagination/lib/__tests__/index.js

Mongoose cursor-based pagination.

'use strict';

var _should = require('should');

var _should2 = _interopRequireDefault(_should);

var _mongoose = require('mongoose');

var _mongoose2 = _interopRequireDefault(_mongoose);

var _index = require('../index');

var _index2 = _interopRequireDefault(_index);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

describe('mongoose-cursor-pagination', function () {
  before(function () {
    _mongoose2.default.Promise = Promise;
    return _mongoose2.default.connect('mongodb://127.0.0.1/test', {
      useMongoClient: true
    });
  });

  before(function () {
    var UserSchema = new _mongoose2.default.Schema({
      name: { type: String },
      value: { type: Number, unique: true, index: true }
    });
    UserSchema.plugin(_index2.default, {
      limit: 5
    });
    _mongoose2.default.model('User', UserSchema);
  });

  before(function () {
    return _mongoose2.default.model('User').insertMany(Array(1000).fill().map(function (_, i) {
      return {
        name: 'User ' + i,
        value: i
      };
    }));
  });

  after(function () {
    return _mongoose2.default.model('User').remove();
  });

  it('pagination with no options', function () {
    return _mongoose2.default.model('User').paginate({}, {
      key: 'value'
    }).then(function (results) {
      _should2.default.equal(results.items.length, 5);
    });
  });

  it('pagination by key and ascendingly', function () {
    return _mongoose2.default.model('User').paginate({}, {
      key: 'value',
      sort: { value: 1 }
    }).then(function (results) {
      _should2.default.equal(results.items.length, 5);
      _should2.default.equal(results.hasMore, true);
      _should2.default.equal(results.items[0].value, 0);
      _should2.default.equal(results.items[4].value, 4);
    });
  });

  it('pagination by key, ascendingly and startingAfter', function () {
    return _mongoose2.default.model('User').paginate({}, {
      key: 'value',
      sort: { value: 1 },
      startingAfter: 4
    }).then(function (results) {
      _should2.default.equal(results.items.length, 5);
      _should2.default.equal(results.hasMore, true);
      _should2.default.equal(results.items[0].value, 5);
      _should2.default.equal(results.items[4].value, 9);
    });
  });

  it('pagination when it reaches the end', function () {
    return _mongoose2.default.model('User').paginate({}, {
      key: 'value',
      sort: { value: 1 },
      startingAfter: 998
    }).then(function (results) {
      _should2.default.equal(results.items.length, 1);
      _should2.default.equal(results.hasMore, false);
      _should2.default.equal(results.items[0].value, 999);
    });
  });

  it('pagination by key and descendingly', function () {
    return _mongoose2.default.model('User').paginate({}, {
      key: 'value',
      sort: { value: -1 }
    }).then(function (results) {
      _should2.default.equal(results.items.length, 5);
      _should2.default.equal(results.hasMore, true);
      _should2.default.equal(results.items[0].value, 999);
      _should2.default.equal(results.items[4].value, 995);
    });
  });

  it('pagination by key, ascendingly and endingBefore', function () {
    return _mongoose2.default.model('User').paginate({}, {
      key: 'value',
      sort: { value: -1 },
      endingBefore: 995
    }).then(function (results) {
      _should2.default.equal(results.items.length, 5);
      _should2.default.equal(results.hasMore, true);
      _should2.default.equal(results.items[0].value, 994);
      _should2.default.equal(results.items[4].value, 990);
    });
  });
}); /* eslint-env mocha */