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 describe("update-options", function() {
   8
   9 var opts = {
  10   width: 480,
  11   height: 320,
  12 };
  13
  14 var 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 beforeEach(function() {
  22   document.body.innerHTML = "<div id='graph'></div><div id='labels'></div>";
  23 });
  24
  25 afterEach(function() {
  26 });
  27
  28 /*
  29  * Tweaks the dygraph so it sets g._testDrawCalled to true when internal method
  30  * drawGraph_ is called. Call unWrapDrawGraph when done with this.
  31  */
  32 var wrapDrawGraph = function(g) {
  33   g._testDrawCalled = false;
  34   g._oldDrawGraph = g.drawGraph_;
  35   g.drawGraph_ = function() {
  36     g._testDrawCalled = true;
  37     g._oldDrawGraph.call(g);
  38   }
  39 };
  40
  41 /*
  42  * See wrapDrawGraph
  43  */
  44 var unwrapDrawGraph = function(g) {
  45   g.drawGraph_ = g._oldDrawGraph;
  46 }
  47
  48 it('testStrokeAll', function() {
  49   var graphDiv = document.getElementById("graph");
  50   var graph = new Dygraph(graphDiv, data, opts);
  51   var updatedOptions = { };
  52
  53   updatedOptions['strokeWidth'] = 3;
  54
  55   // These options will allow us to jump to renderGraph_()
  56   // drawGraph_() will be skipped.
  57   wrapDrawGraph(graph);
  58   graph.updateOptions(updatedOptions);
  59   unwrapDrawGraph(graph);
  60   assert.isFalse(graph._testDrawCalled);
  61 });
  62
  63 it('testStrokeSingleSeries', function() {
  64   var graphDiv = document.getElementById("graph");
  65   var graph = new Dygraph(graphDiv, data, opts);
  66   var updatedOptions = { };
  67   var optionsForY1 = { };
  68
  69   optionsForY1['strokeWidth'] = 3;
  70   updatedOptions['series'] = {'Y1': optionsForY1};
  71
  72   // These options will allow us to jump to renderGraph_()
  73   // drawGraph_() will be skipped.
  74   wrapDrawGraph(graph);
  75   graph.updateOptions(updatedOptions);
  76   unwrapDrawGraph(graph);
  77   assert.isFalse(graph._testDrawCalled);
  78 });
  79
  80 it('testSingleSeriesRequiresNewPoints', function() {
  81   var graphDiv = document.getElementById("graph");
  82   var graph = new Dygraph(graphDiv, data, opts);
  83   var updatedOptions = {
  84     series: {
  85       Y1: {
  86         strokeWidth: 2
  87       },
  88       Y2: {
  89         stepPlot: true
  90       }
  91     }
  92   };
  93
  94   // These options will not allow us to jump to renderGraph_()
  95   // drawGraph_() must be called
  96   wrapDrawGraph(graph);
  97   graph.updateOptions(updatedOptions);
  98   unwrapDrawGraph(graph);
  99   assert.isTrue(graph._testDrawCalled);
 100 });
 101
 102 it('testWidthChangeNeedsNewPoints', function() {
 103   var graphDiv = document.getElementById("graph");
 104   var graph = new Dygraph(graphDiv, data, opts);
 105   var updatedOptions = { };
 106
 107   // This will require new points.
 108   updatedOptions['width'] = 600;
 109
 110   // These options will not allow us to jump to renderGraph_()
 111   // drawGraph_() must be called
 112   wrapDrawGraph(graph);
 113   graph.updateOptions(updatedOptions);
 114   unwrapDrawGraph(graph);
 115   assert.isTrue(graph._testDrawCalled);
 116 });
 117
 118 // Test https://github.com/danvk/dygraphs/issues/87
 119 it('testUpdateLabelsDivDoesntInfiniteLoop', function() {
 120   var graphDiv = document.getElementById("graph");
 121   var labelsDiv = document.getElementById("labels");
 122   var graph = new Dygraph(graphDiv, data, opts);
 123   graph.updateOptions({labelsDiv : labelsDiv});
 124 });
 125
 126 // Test https://github.com/danvk/dygraphs/issues/247
 127 it('testUpdateColors', function() {
 128   var graphDiv = document.getElementById("graph");
 129   var graph = new Dygraph(graphDiv, data, opts);
 130
 131   var defaultColors = ["rgb(0,128,0)", "rgb(0,0,128)"];
 132   assert.deepEqual(["rgb(0,128,0)", "rgb(0,0,128)"], graph.getColors());
 133
 134   var colors1 = [ "#aaa", "#bbb" ];
 135   graph.updateOptions({ colors: colors1 });
 136   assert.deepEqual(colors1, graph.getColors());
 137
 138   // extra colors are ignored until you add additional data series.
 139   var colors2 = [ "#ddd", "#eee", "#fff" ];
 140   graph.updateOptions({ colors: colors2 });
 141   assert.deepEqual(["#ddd", "#eee"], graph.getColors());
 142
 143   graph.updateOptions({ file:
 144       "X,Y1,Y2,Y3\n" +
 145       "2011-01-01,2,3,4\n" +
 146       "2011-02-02,5,3,2\n"
 147   });
 148   assert.deepEqual(colors2, graph.getColors());
 149
 150   graph.updateOptions({ colors: null, file: data });
 151   assert.deepEqual(defaultColors, graph.getColors());
 152 });
 153
 154 // Regression test for http://code.google.com/p/dygraphs/issues/detail?id=249
 155 // Verifies that setting 'legend: always' via update immediately shows the
 156 // legend.
 157 it('testUpdateLegendAlways', function() {
 158   var graphDiv = document.getElementById("graph");
 159   var graph = new Dygraph(graphDiv, data, opts);
 160
 161   var legend = document.getElementsByClassName("dygraph-legend");
 162   assert.equal(1, legend.length);
 163   legend = legend[0];
 164   assert.equal("", legend.innerHTML);
 165
 166   graph.updateOptions({legend: 'always'});
 167
 168   legend = document.getElementsByClassName("dygraph-legend");
 169   assert.equal(1, legend.length);
 170   legend = legend[0];
 171   assert.notEqual(-1, legend.textContent.indexOf("Y1"));
 172   assert.notEqual(-1, legend.textContent.indexOf("Y2"));
 173 });
 174
 175 });