auto_tests/tests/xhr.js

   1 /**
   2  * @fileoverview Tests involving issuing XHRs for data.
   3  *
   4  * Note that these tests must be run with an HTTP server.
   5  * XHRs can't be issued from file:/// URLs.
   6  * This can be done with
   7  *
   8  *     npm install http-server
   9  *     http-server
  10  *     open http://localhost:8080/auto_tests/runner.html
  11  *
  12  */
  13
  14 import Dygraph from '../../src/dygraph';
  15 import Util from './Util';
  16
  17 import 'core-js/es6/promise';
  18
  19 function dygraphPromise(div, data, opts) {
  20   return new Promise((resolve, reject) => {
  21     const g = new Dygraph(div, data, opts);
  22     g.ready(() => resolve(g));
  23   });
  24 }
  25
  26 describe("xhr", () => {
  27
  28 it('should issue XHRs for CSV data', () => {
  29   return dygraphPromise('graph', 'data/sample.csv').then(g => {
  30     assert.isNotNull(g);
  31     assert.equal(g.numRows(), 4);
  32     assert.equal(g.numColumns(), 3);
  33   });
  34 });
  35
  36 it('should warn on out-of-order CSV data', () => {
  37   const calls = {};
  38   const restore = Util.captureConsole(calls);
  39   return dygraphPromise('graph', 'data/out-of-order.csv').then(g => {
  40     restore();
  41     assert.isNotNull(g);
  42     assert.equal(g.numRows(), 4);
  43     assert.equal(g.numColumns(), 3);
  44     assert.equal(calls.warn.length, 1);
  45     assert(/out of order/.exec(calls.warn[0]));
  46   }, e => {
  47     restore();
  48     return Promise.reject(e);
  49   });
  50 });
  51
  52 it('should warn on out-of-order CSV data with dates', () => {
  53   const calls = {};
  54   const restore = Util.captureConsole(calls);
  55   return dygraphPromise('graph', 'data/out-of-order-dates.csv').then(g => {
  56     restore();
  57     assert.isNotNull(g);
  58     assert.equal(g.numRows(), 8);
  59     assert.equal(g.numColumns(), 5);
  60     assert.equal(calls.warn.length, 1);
  61     assert(/out of order/.exec(calls.warn[0]));
  62   }, e => {
  63     restore();
  64     return Promise.reject(e);
  65   });
  66 });
  67
  68 });