auto_tests/tests/visibility.js

   1 /**
   2  * @fileoverview Tests for the setVisibility function.
   3  * @author sergeyslepian@gmail.com
   4  */
   5
   6 describe("visibility", function() {
   7
   8 beforeEach(function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10 });
  11
  12 afterEach(function() {
  13 });
  14
  15 /**
  16  * Does a bunch of the shared busywork of setting up a graph and changing its visibility.
  17  * @param {boolean} startingVisibility The starting visibility of all series on the graph
  18  * @param {*[]} setVisibilityArgs An array of arguments to be passed directly to setVisibility()
  19  * @returns {string} The output of Util.getLegend() called after the visibility is set
  20  */
  21 var getVisibleSeries = function(startingVisibility, setVisibilityArgs) {
  22   var opts = {
  23     width: 480,
  24     height: 320,
  25     labels: ['x', 'A', 'B', 'C', 'D', 'E'],
  26     legend: 'always',
  27     visibility: []
  28   };
  29
  30   // set the starting visibility
  31   var numSeries = opts.labels.length - 1;
  32   for(var i = 0; i < numSeries; i++) {
  33     opts.visibility[i] = startingVisibility;
  34   }
  35
  36   var data = [];
  37   for (var j = 0; j < 10; j++) {
  38     data.push([j, 1, 2, 3, 4, 5]);
  39   }
  40
  41   var graph = document.getElementById("graph");
  42   var g = new Dygraph(graph, data, opts);
  43
  44   g.setVisibility.apply(g, setVisibilityArgs);
  45
  46   return Util.getLegend();
  47 };
  48
  49 it('testDefaultCases', function() {
  50   assert.equal(' A  B  C  D  E', getVisibleSeries(true, [[], true]));
  51   assert.equal('', getVisibleSeries(false, [[], true]));
  52 });
  53
  54 it('testSingleSeriesHide', function() {
  55   assert.equal(' A  C  D  E', getVisibleSeries(true, [1, false]));
  56 });
  57
  58 it('testSingleSeriesShow', function() {
  59   assert.equal(' E', getVisibleSeries(false, [4, true]));
  60 });
  61
  62 it('testMultiSeriesHide', function() {
  63   assert.equal(' A  E', getVisibleSeries(true, [[1,2,3], false]));
  64 });
  65
  66 it('testMultiSeriesShow', function() {
  67   assert.equal(' B  D', getVisibleSeries(false, [[1,3], true]));
  68 });
  69
  70 });