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 function dygraphPromise(div, data, opts) {
  18   return new Promise((resolve, reject) => {
  19     const g = new Dygraph(div, data, opts);
  20     g.ready(() => resolve(g));
  21   });
  22 }
  23
  24 describe("xhr", () => {
  25
  26 it('should issue XHRs for CSV data', () => {
  27   return dygraphPromise('graph', 'data/sample.csv').then(g => {
  28     assert.isNotNull(g);
  29     assert.equal(g.numRows(), 4);
  30     assert.equal(g.numColumns(), 3);
  31   });
  32 });
  33
  34 it('should warn on out-of-order CSV data', () => {
  35   const calls = {};
  36   const restore = Util.captureConsole(calls);
  37   return dygraphPromise('graph', 'data/out-of-order.csv').then(g => {
  38     restore();
  39     assert.isNotNull(g);
  40     assert.equal(g.numRows(), 4);
  41     assert.equal(g.numColumns(), 3);
  42     assert.equal(calls.warn.length, 1);
  43     assert(/out of order/.exec(calls.warn[0]));
  44   }, e => {
  45     restore();
  46     return Promise.reject(e);
  47   });
  48 });
  49
  50 it('should warn on out-of-order CSV data with dates', () => {
  51   const calls = {};
  52   const restore = Util.captureConsole(calls);
  53   return dygraphPromise('graph', 'data/out-of-order-dates.csv').then(g => {
  54     restore();
  55     assert.isNotNull(g);
  56     assert.equal(g.numRows(), 8);
  57     assert.equal(g.numColumns(), 5);
  58     assert.equal(calls.warn.length, 1);
  59     assert(/out of order/.exec(calls.warn[0]));
  60   }, e => {
  61     restore();
  62     return Promise.reject(e);
  63   });
  64 });
  65
  66 });