auto_tests/tests/per_axis.js

   1 /**
   2  * @fileoverview Tests for per-axis options.
   3  *
   4  * @author konigsberg@google.com (Robert Konigsberg)
   5  */
   6 var perAxisTestCase = TestCase("per-axis");
   7
   8 var _origGetContext = Dygraph.getContext;
   9
  10 var xAxisLineColor = "#00ffff";
  11 var yAxisLineColor = "#ffff00";
  12
  13 var g, graph;
  14
  15 perAxisTestCase.prototype.setUp = 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 perAxisTestCase.prototype.tearDown = function() {
  46   Dygraph.getContext = _origGetContext;
  47 };
  48
  49 perAxisTestCase.prototype.testDrawXAxis = function() {
  50   g.updateOptions({ axes : { x : { drawAxis: true }} });
  51   assertTrue(graph.getElementsByClassName('dygraph-axis-label-x').length > 0);
  52   assertTrue(graph.getElementsByClassName('dygraph-axis-label-y').length == 0);
  53 }
  54
  55 perAxisTestCase.prototype.testDrawYAxis = function() {
  56   g.updateOptions({ axes : { y : { drawAxis: true }} });
  57   assertTrue(graph.getElementsByClassName('dygraph-axis-label-x').length ==0);
  58   assertTrue(graph.getElementsByClassName('dygraph-axis-label-y').length > 0);
  59 }
  60
  61 perAxisTestCase.prototype.testDrawXGrid = function() {
  62   g.updateOptions({ axes : { x : { drawGrid : true }}});
  63   var htx = g.hidden_ctx_;
  64   assertTrue(CanvasAssertions.numLinesDrawn(htx, xAxisLineColor) > 0);
  65   assertTrue(CanvasAssertions.numLinesDrawn(htx, yAxisLineColor) == 0);
  66 }
  67
  68 perAxisTestCase.prototype.testDrawYGrid = function() {
  69   g.updateOptions({ axes : { y : { drawGrid : true }}});
  70   var htx = g.hidden_ctx_;
  71   assertTrue(CanvasAssertions.numLinesDrawn(htx, xAxisLineColor) == 0);
  72   assertTrue(CanvasAssertions.numLinesDrawn(htx, yAxisLineColor) > 0);
  73 }