auto_tests/tests/per_axis.js

   1 /**
   2  * @fileoverview Tests for per-axis options.
   3  *
   4  * @author konigsberg@google.com (Robert Konigsberg)
   5  */
   6 describe("per-axis", function() {
   7
   8 var _origGetContext = Dygraph.getContext;
   9
  10 var xAxisLineColor = "#00ffff";
  11 var yAxisLineColor = "#ffff00";
  12
  13 var g, graph;
  14
  15 beforeEach(function() {
  16   document.body.innerHTML = "<div id='graph'></div>";
  17   Dygraph.getContext = function(canvas) {
  18     return new Proxy(_origGetContext(canvas));
  19   }
  20
  21   var opts = {
  22     axes : {
  23       x : {
  24         drawAxis : false,
  25         drawGrid : false,
  26         gridLineColor : xAxisLineColor
  27       },
  28       y : {
  29         drawAxis : false,
  30         drawGrid : false,
  31         gridLineColor : yAxisLineColor
  32       }
  33     },
  34     colors: [ '#ff0000', '#0000ff' ]
  35   };
  36
  37   var data = "X,Y,Z\n" +
  38       "1,1,0\n" +
  39       "8,0,1\n"
  40   ;
  41   graph = document.getElementById('graph');
  42   g = new Dygraph(graph, data, opts);
  43 });
  44
  45 afterEach(function() {
  46   Dygraph.getContext = _origGetContext;
  47 });
  48
  49 it('testDrawXAxis', function() {
  50   g.updateOptions({ axes : { x : { drawAxis: true }} });
  51   assert.isTrue(graph.getElementsByClassName('dygraph-axis-label-x').length > 0);
  52   assert.isTrue(graph.getElementsByClassName('dygraph-axis-label-y').length == 0);
  53 });
  54
  55 it('testDrawYAxis', function() {
  56   g.updateOptions({ axes : { y : { drawAxis: true }} });
  57   assert.isTrue(graph.getElementsByClassName('dygraph-axis-label-x').length ==0);
  58   assert.isTrue(graph.getElementsByClassName('dygraph-axis-label-y').length > 0);
  59 });
  60
  61 it('testDrawXGrid', function() {
  62   g.updateOptions({ axes : { x : { drawGrid : true }}});
  63   var htx = g.hidden_ctx_;
  64   assert.isTrue(CanvasAssertions.numLinesDrawn(htx, xAxisLineColor) > 0);
  65   assert.isTrue(CanvasAssertions.numLinesDrawn(htx, yAxisLineColor) == 0);
  66 });
  67
  68 it('testDrawYGrid', function() {
  69   g.updateOptions({ axes : { y : { drawGrid : true }}});
  70   var htx = g.hidden_ctx_;
  71   assert.isTrue(CanvasAssertions.numLinesDrawn(htx, xAxisLineColor) == 0);
  72   assert.isTrue(CanvasAssertions.numLinesDrawn(htx, yAxisLineColor) > 0);
  73 });
  74
  75 });