auto_tests/tests/plugins.js

   1 /**
   2  * @fileoverview Tests for the plugins option.
   3  *
   4  * @author konigsberg@google.com (Robert Konigsberg)
   5  */
   6 var pluginsTestCase = TestCase("plugins");
   7
   8 pluginsTestCase.prototype.setUp = function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10 };
  11
  12 pluginsTestCase.prototype.tearDown = function() {
  13 };
  14
  15 pluginsTestCase.prototype.testWillDrawChart = function() {
  16   var draw = 0;
  17
  18   var plugin = (function() {
  19     var p = function() {
  20     };
  21
  22     p.prototype.activate = function(g) {
  23       return {
  24         willDrawChart: this.willDrawChart
  25       };
  26     };
  27
  28     p.prototype.willDrawChart = function(e) {
  29       draw++;
  30     };
  31
  32     return p;
  33   })();
  34
  35   var data = "X,Y1,Y2\n" +
  36       "0,1,1\n" +
  37       "1,1,1\n" +
  38       "2,1,1\n" +
  39       "3,1,1\n"
  40   ;
  41
  42   var graph = document.getElementById("graph");
  43   var g = new Dygraph(graph, data, { plugins : [ plugin ] });
  44
  45   assertEquals(1, draw);
  46 };