auto_tests/tests/update_options.js

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2
   3 /**
   4  * @fileoverview Tests for the updateOptions function.
   5  * @author antrob@google.com (Anthony Robledo)
   6  */
   7 var UpdateOptionsTestCase = TestCase("update-options");
   8
   9 UpdateOptionsTestCase.prototype.opts = {
  10   width: 480,
  11   height: 320,
  12 };
  13
  14 UpdateOptionsTestCase.prototype.data = "X,Y1,Y2\n" +
  15   "2011-01-01,2,3\n" +
  16   "2011-02-02,5,3\n" +
  17   "2011-03-03,6,1\n" +
  18   "2011-04-04,9,5\n" +
  19   "2011-05-05,8,3\n";
  20
  21 UpdateOptionsTestCase.prototype.setUp = function() {
  22   document.body.innerHTML = "<div id='graph'></div><div id='labels'></div>";
  23 };
  24
  25 UpdateOptionsTestCase.prototype.tearDown = function() {
  26 };
  27
  28 UpdateOptionsTestCase.prototype.wrap = function(g) {
  29   g._testDrawCalled = false;
  30   var oldDrawGraph = Dygraph.prototype.drawGraph_;
  31   Dygraph.prototype.drawGraph_ = function() {
  32     g._testDrawCalled = true;
  33     oldDrawGraph.call(g);
  34   }
  35
  36   return oldDrawGraph;
  37 }
  38
  39 UpdateOptionsTestCase.prototype.unWrap = function(oldDrawGraph) {
  40   Dygraph.prototype.drawGraph_ = oldDrawGraph;
  41 }
  42
  43 UpdateOptionsTestCase.prototype.testStrokeAll = function() {
  44   var graphDiv = document.getElementById("graph");
  45   var graph = new Dygraph(graphDiv, this.data, this.opts);
  46   var updatedOptions = { };
  47
  48   updatedOptions['strokeWidth'] = 3;
  49
  50   // These options will allow us to jump to renderGraph_()
  51   // drawGraph_() will be skipped.
  52   var oldDrawGraph = this.wrap(graph);
  53   graph.updateOptions(updatedOptions);
  54   this.unWrap(oldDrawGraph);
  55   assertFalse(graph._testDrawCalled);
  56 };
  57
  58 UpdateOptionsTestCase.prototype.testStrokeSingleSeries = function() {
  59   var graphDiv = document.getElementById("graph");
  60   var graph = new Dygraph(graphDiv, this.data, this.opts);
  61   var updatedOptions = { };
  62   var optionsForY1 = { };
  63
  64   optionsForY1['strokeWidth'] = 3;
  65   updatedOptions['Y1'] = optionsForY1;
  66
  67   // These options will allow us to jump to renderGraph_()
  68   // drawGraph_() will be skipped.
  69   var oldDrawGraph = this.wrap(graph);
  70   graph.updateOptions(updatedOptions);
  71   this.unWrap(oldDrawGraph);
  72   assertFalse(graph._testDrawCalled);
  73 };
  74
  75 UpdateOptionsTestCase.prototype.testSingleSeriesRequiresNewPoints = function() {
  76   var graphDiv = document.getElementById("graph");
  77   var graph = new Dygraph(graphDiv, this.data, this.opts);
  78   var updatedOptions = { };
  79   var optionsForY1 = { };
  80   var optionsForY2 = { };
  81
  82   // This will not require new points.
  83   optionsForY1['strokeWidth'] = 2;
  84   updatedOptions['Y1'] = optionsForY1;
  85
  86   // This will require new points.
  87   optionsForY2['stepPlot'] = true;
  88   updatedOptions['Y2'] = optionsForY2;
  89
  90   // These options will not allow us to jump to renderGraph_()
  91   // drawGraph_() must be called
  92   var oldDrawGraph = this.wrap(graph);
  93   graph.updateOptions(updatedOptions);
  94   this.unWrap(oldDrawGraph);
  95   assertTrue(graph._testDrawCalled);
  96 };
  97
  98 UpdateOptionsTestCase.prototype.testWidthChangeNeedsNewPoints = function() {
  99   var graphDiv = document.getElementById("graph");
 100   var graph = new Dygraph(graphDiv, this.data, this.opts);
 101   var updatedOptions = { };
 102
 103   // This will require new points.
 104   updatedOptions['width'] = 600;
 105
 106   // These options will not allow us to jump to renderGraph_()
 107   // drawGraph_() must be called
 108   var oldDrawGraph = this.wrap(graph);
 109   graph.updateOptions(updatedOptions);
 110   this.unWrap(oldDrawGraph);
 111   assertTrue(graph._testDrawCalled);
 112 };
 113
 114 // Test https://github.com/danvk/dygraphs/issues/87
 115 UpdateOptionsTestCase.prototype.testUpdateLabelsDivDoesntInfiniteLoop = function() {
 116   var graphDiv = document.getElementById("graph");
 117   var labelsDiv = document.getElementById("labels");
 118   var graph = new Dygraph(graphDiv, this.data, this.opts);
 119   graph.updateOptions({labelsDiv : labelsDiv});
 120 }
 121