auto_tests/tests/selection.js

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2
   3 /**
   4  * @fileoverview Regression test based on an optimization w/
   5  * unforeseen consequences.
   6  * @author danvk@google.com (Dan Vanderkam)
   7  */
   8
   9 import Dygraph from '../../src/dygraph';
  10 import DefaultHandler from '../../src/datahandler/default';
  11
  12 describe("selection", function() {
  13
  14 cleanupAfterEach();
  15
  16 it('testSetGetSelection', function() {
  17   var graph = document.getElementById("graph");
  18   var g = new Dygraph(graph,
  19     "X,Y\n" +
  20     "1,1\n" +
  21     "50,50\n" +
  22     "100,100\n"
  23   );
  24
  25   g.setSelection(0);
  26   assert.equal(0, g.getSelection());
  27   g.setSelection(1);
  28   assert.equal(1, g.getSelection());
  29   g.setSelection(2);
  30   assert.equal(2, g.getSelection());
  31 });
  32
  33 it('testSetGetSelectionDense', function() {
  34   var graph = document.getElementById("graph");
  35   var g = new Dygraph(graph,
  36     "X,Y\n" +
  37     "1,1\n" +
  38     "50,50\n" +
  39     "50.0001,50.0001\n" +
  40     "100,100\n"
  41   );
  42
  43   g.setSelection(0);
  44   assert.equal(0, g.getSelection());
  45   g.setSelection(1);
  46   assert.equal(1, g.getSelection());
  47   g.setSelection(2);
  48   assert.equal(2, g.getSelection());
  49   g.setSelection(3);
  50   assert.equal(3, g.getSelection());
  51 });
  52
  53 it('testSetGetSelectionMissingPoints', function() {
  54   var dataHandler = function() {};
  55   dataHandler.prototype = new DefaultHandler();
  56   dataHandler.prototype.seriesToPoints = function(series, setName, boundaryIdStart) {
  57     var val = null;
  58     if (setName == 'A') {
  59       val = 1;
  60     } else if (setName == 'B') {
  61       val = 2;
  62     } else if (setName == 'C') {
  63       val = 3;
  64     }
  65     return [{
  66       x: NaN,
  67       y: NaN,
  68       xval: val,
  69       yval: val,
  70       name: setName,
  71       idx: val - 1
  72     }];
  73   };
  74   var graph = document.getElementById("graph");
  75   var g = new Dygraph(graph,
  76     "X,A,B,C\n" +
  77     "1,1,,\n" +
  78     "2,,2,\n" +
  79     "3,,,3\n",
  80     {
  81       dataHandler: dataHandler
  82     }
  83   );
  84
  85   g.setSelection(0);
  86   assert.equal(0, g.getSelection());
  87   g.setSelection(1);
  88   assert.equal(1, g.getSelection());
  89   g.setSelection(2);
  90   assert.equal(2, g.getSelection());
  91 });
  92
  93 });