auto_tests/tests/formats.js

   1 /**
   2  * @fileoverview Tests for data formats.
   3  *
   4  * @author konigsberg@google.com (Robert Konigsberg)
   5  */
   6 var FormatsTestCase = TestCase("formats");
   7
   8 FormatsTestCase.prototype.setUp = function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10 };
  11
  12 FormatsTestCase.prototype.tearDown = function() {
  13 };
  14
  15 FormatsTestCase.prototype.dataString =
  16   "X,Y\n" +
  17   "0,-1\n" +
  18   "1,0\n" +
  19   "2,1\n" +
  20   "3,0\n";
  21
  22 FormatsTestCase.prototype.dataArray =
  23   [[0,-1],
  24   [1,0],
  25   [2,1],
  26   [3,0]];
  27
  28 FormatsTestCase.prototype.testCsv = function() {
  29   var data = this.dataString;
  30   var graph = document.getElementById("graph");
  31   var g = new Dygraph(graph, data, {});
  32   this.assertData(g);
  33 };
  34
  35 FormatsTestCase.prototype.testArray = function() {
  36   var data = this.dataArray;
  37   var graph = document.getElementById("graph");
  38   var g = new Dygraph(graph, data, {});
  39   this.assertData(g);
  40 };
  41
  42 FormatsTestCase.prototype.testFunctionReturnsCsv = function() {
  43   var string = this.dataString;
  44   var data = function() { return string; };
  45
  46   var graph = document.getElementById("graph");
  47   var g = new Dygraph(graph, data, {});
  48   // this.assertData(g);
  49   console.log("x");
  50 };
  51
  52 FormatsTestCase.prototype.testFunctionDefinesArray = function() {
  53   var array = this.dataArray;
  54   var data = function() { return array; }
  55
  56   var graph = document.getElementById("graph");
  57   var g = new Dygraph(graph, data, {});
  58   this.assertData(g);
  59 };
  60
  61 FormatsTestCase.prototype.testXValueParser = function() {
  62   var data =
  63     "X,Y\n" +
  64     "d,-1\n" +
  65     "e,0\n" +
  66     "f,1\n" +
  67     "g,0\n";
  68
  69   var graph = document.getElementById("graph");
  70   var g = new Dygraph(graph, data, {
  71     xValueParser : function(str) {
  72       assertEquals(1, str.length);
  73       return str.charCodeAt(0) - "a".charCodeAt(0);
  74     }
  75   });
  76
  77   assertEquals(3, g.getValue(0, 0));
  78   assertEquals(4, g.getValue(1, 0));
  79   assertEquals(5, g.getValue(2, 0));
  80   assertEquals(6, g.getValue(3, 0));
  81 };
  82
  83 FormatsTestCase.prototype.assertData = function(g) {
  84   var expected = this.dataArray;
  85
  86   assertEquals(4, g.numRows());
  87   assertEquals(2, g.numColumns());
  88
  89   for (var i = 0; i < 4; i++) {
  90     for (var j = 0; j < 2; j++) {
  91       assertEquals(expected[i][j], g.getValue(i, j));
  92     }
  93   }
  94 }