Add position set class
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Bartek Fabiszewski
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101
js/src/positionset.js
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101
js/src/positionset.js
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/*
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* μlogger
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*
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* Copyright(C) 2019 Bartek Fabiszewski (www.fabiszewski.net)
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*
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* This is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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import uAjax from './ajax.js';
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import uListItem from './listitem.js';
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import uPosition from './position.js';
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/**
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* Set of unrelated positions
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* @class uPositionSet
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* @property {uPosition[]} positions
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*/
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export default class uPositionSet extends uListItem {
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constructor() {
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super();
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this.positions = [];
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}
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clear() {
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this.positions.length = 0;
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}
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/**
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* @return {number}
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*/
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get length() {
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return this.positions.length;
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}
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/**
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* @return {boolean}
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*/
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get hasPositions() {
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return this.positions.length > 0;
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}
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// eslint-disable-next-line no-unused-vars,class-methods-use-this
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isLastPosition(id) {
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return true;
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}
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// eslint-disable-next-line no-unused-vars,class-methods-use-this
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isFirstPosition(id) {
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return true;
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}
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/**
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* Get track data from json
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* @param {Object[]} posArr Positions data
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* @param {boolean=} isUpdate If true append to old data
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*/
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fromJson(posArr, isUpdate = false) {
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let positions = [];
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if (isUpdate) {
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positions = this.positions;
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} else {
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this.clear();
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}
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for (const pos of posArr) {
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positions.push(uPosition.fromJson(pos));
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}
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// update at the end to avoid observers update invidual points
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this.positions = positions;
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}
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/**
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* Fetch latest position of each user.
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* @return {Promise<uPositionSet, Error>}
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*/
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static fetchLatest() {
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return this.fetch({ last: true }).then((_positions) => {
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if (_positions.length) {
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const set = new uPositionSet();
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set.fromJson(_positions);
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return set;
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}
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return null;
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});
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}
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static fetch(params) {
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return uAjax.get('utils/getpositions.php', params);
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}
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}
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223
js/test/positionset.test.js
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223
js/test/positionset.test.js
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/*
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* μlogger
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*
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* Copyright(C) 2019 Bartek Fabiszewski (www.fabiszewski.net)
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*
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* This is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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import uPosition from '../src/position.js';
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import uPositionSet from '../src/positionset.js';
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describe('PositionSet tests', () => {
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let set;
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let posId;
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let latitude;
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let longitude;
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let altitude;
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let speed;
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let bearing;
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let timestamp;
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let accuracy;
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let provider;
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let comment;
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let image;
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let username;
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let trackid;
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let trackname;
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let meters;
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let seconds;
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let jsonPosition;
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beforeEach(() => {
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set = new uPositionSet();
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posId = 110286;
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latitude = 11.221871666666999;
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longitude = 22.018848333333001;
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altitude = -39;
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speed = 0;
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bearing = null;
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timestamp = 1564250017;
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accuracy = 9;
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provider = 'gps';
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comment = null;
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image = '134_5d3c8fa92ebac.jpg';
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username = 'test';
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trackid = 134;
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trackname = 'Test name';
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meters = 0;
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seconds = 0;
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jsonPosition = {
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'id': posId,
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'latitude': latitude,
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'longitude': longitude,
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'altitude': altitude,
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'speed': speed,
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'bearing': bearing,
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'timestamp': timestamp,
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'accuracy': accuracy,
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'provider': provider,
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'comment': comment,
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'image': image,
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'username': username,
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'trackid': trackid,
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'trackname': trackname,
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'meters': meters,
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'seconds': seconds
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};
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});
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describe('simple tests', () => {
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it('should create uPositionSet instance', () => {
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// when
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set = new uPositionSet();
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// then
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expect(set.positions).toEqual([]);
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});
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it('should clear positions data', () => {
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// given
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set.positions.push(new uPosition());
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// when
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set.clear();
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// then
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expect(set.positions).toEqual([]);
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});
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it('should return positions length', () => {
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// given
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set.positions.push(new uPosition());
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// when
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const length = set.length;
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// then
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expect(length).toBe(1);
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});
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it('should return true when has positions', () => {
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// given
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set.positions.push(new uPosition());
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// when
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const result = set.hasPositions;
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// then
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expect(result).toBe(true);
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});
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it('should return false when does not have positions', () => {
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// given
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set.positions.length = 0;
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// when
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const result = set.hasPositions;
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// then
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expect(result).toBe(false);
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});
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it('should parse json object to track positions', () => {
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// when
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set.fromJson([ jsonPosition ]);
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// then
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expect(set.length).toBe(1);
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const position = set.positions[0];
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expect(position.id).toBe(posId);
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expect(position.latitude).toBe(latitude);
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expect(position.longitude).toBe(longitude);
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expect(position.speed).toBe(speed);
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expect(position.bearing).toBe(bearing);
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expect(position.timestamp).toBe(timestamp);
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expect(position.accuracy).toBe(accuracy);
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expect(position.provider).toBe(provider);
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expect(position.comment).toBe(comment);
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expect(position.image).toBe(image);
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expect(position.username).toBe(username);
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expect(position.trackid).toBe(trackid);
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expect(position.trackname).toBe(trackname);
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expect(position.meters).toBe(meters);
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expect(position.seconds).toBe(seconds);
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});
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it('should replace track positions with new ones', () => {
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const position1 = { ...jsonPosition };
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position1.id = 100;
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set.fromJson([ position1 ]);
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// when
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set.fromJson([ jsonPosition ]);
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// then
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expect(set.length).toBe(1);
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const position2 = set.positions[0];
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expect(position2.id).toBe(posId);
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});
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it('should append track positions with new ones', () => {
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const position1 = { ...jsonPosition };
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position1.id = 100;
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set.fromJson([ position1 ]);
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// when
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set.fromJson([ jsonPosition ], true);
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// then
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expect(set.length).toBe(2);
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expect(set.positions[0].id).toBe(position1.id);
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expect(set.positions[1].id).toBe(jsonPosition.id);
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});
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});
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describe('ajax tests', () => {
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beforeEach(() => {
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spyOn(XMLHttpRequest.prototype, 'open').and.callThrough();
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spyOn(XMLHttpRequest.prototype, 'setRequestHeader').and.callThrough();
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spyOn(XMLHttpRequest.prototype, 'send');
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spyOnProperty(XMLHttpRequest.prototype, 'readyState').and.returnValue(XMLHttpRequest.DONE);
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spyOnProperty(XMLHttpRequest.prototype, 'status').and.returnValue(200);
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});
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it('should make successful request and return latest position for each user', (done) => {
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// given
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spyOnProperty(XMLHttpRequest.prototype, 'responseText').and.returnValue(JSON.stringify([ jsonPosition ]));
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// when
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uPositionSet.fetchLatest()
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.then((result) => {
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expect(XMLHttpRequest.prototype.open).toHaveBeenCalledWith('GET', 'utils/getpositions.php?last=true', true);
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expect(result).toBeInstanceOf(uPositionSet);
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expect(result.length).toBe(1);
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done();
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})
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.catch((e) => done.fail(`reject callback called (${e})`));
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});
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it('should call getpositions with params', (done) => {
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// given
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const params = { param: 'test' };
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spyOnProperty(XMLHttpRequest.prototype, 'responseText').and.returnValue(JSON.stringify([ jsonPosition ]));
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// when
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uPositionSet.fetch(params)
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.then(() => {
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expect(XMLHttpRequest.prototype.open).toHaveBeenCalledWith('GET', 'utils/getpositions.php?param=test', true);
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done();
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})
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.catch((e) => done.fail(`reject callback called (${e})`));
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});
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});
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});
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