auto_tests/tests/multi_csv.js

   1 /**
   2  * @fileoverview Test cases for how axis labels are chosen and formatted.
   3  *
   4  * @author dan@dygraphs.com (Dan Vanderkam)
   5  */
   6 var MultiCsvTestCase = TestCase("multi-csv");
   7
   8 MultiCsvTestCase.prototype.setUp = function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10 };
  11
  12 MultiCsvTestCase.prototype.tearDown = function() {
  13 };
  14
  15 function getXLabels() {
  16   var x_labels = document.getElementsByClassName("dygraph-axis-label-x");
  17   var ary = [];
  18   for (var i = 0; i < x_labels.length; i++) {
  19     ary.push(x_labels[i].innerHTML);
  20   }
  21   return ary;
  22 }
  23
  24 MultiCsvTestCase.prototype.testOneCSV = function() {
  25   var opts = {
  26     width: 480,
  27     height: 320
  28   };
  29   var data = "X,Y\n" +
  30       "0,-1\n" +
  31       "1,0\n" +
  32       "2,1\n" +
  33       "3,0\n"
  34   ;
  35
  36   var graph = document.getElementById("graph");
  37   var g = new Dygraph(graph, data, opts);
  38
  39   assertEquals(['0','0.5','1','1.5','2','2.5'], getXLabels());
  40 };
  41
  42 MultiCsvTestCase.prototype.testTwoCSV = function() {
  43   var opts = {
  44     width: 480,
  45     height: 320
  46   };
  47   var data = "X,Y\n" +
  48       "0,-1\n" +
  49       "1,0\n" +
  50       "2,1\n" +
  51       "3,0\n"
  52   ;
  53
  54   var graph = document.getElementById("graph");
  55   var g = new Dygraph(graph, data, opts);
  56
  57   assertEquals(['0','0.5','1','1.5','2','2.5'], getXLabels());
  58
  59   g.updateOptions({file: data});
  60
  61   assertEquals(['0','0.5','1','1.5','2','2.5'], getXLabels());
  62 };