auto_tests/tests/formats.js

   1 /**
   2  * @fileoverview Tests for data formats.
   3  *
   4  * @author konigsberg@google.com (Robert Konigsberg)
   5  */
   6 describe("formats", function() {
   7
   8 beforeEach(function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10 });
  11
  12 afterEach(function() {
  13 });
  14
  15 var dataString =
  16   "X,Y\n" +
  17   "0,-1\n" +
  18   "1,0\n" +
  19   "2,1\n" +
  20   "3,0\n";
  21
  22 var dataArray =
  23   [[0,-1],
  24   [1,0],
  25   [2,1],
  26   [3,0]];
  27
  28 it('testCsv', function() {
  29   var data = dataString;
  30   var graph = document.getElementById("graph");
  31   var g = new Dygraph(graph, data, {});
  32   assertData(g);
  33 });
  34
  35 it('testArray', function() {
  36   var data = dataArray;
  37   var graph = document.getElementById("graph");
  38   var g = new Dygraph(graph, data, {});
  39   assertData(g);
  40 });
  41
  42 it('testFunctionReturnsCsv', function() {
  43   var string = dataString;
  44   var data = function() { return string; };
  45
  46   var graph = document.getElementById("graph");
  47   var g = new Dygraph(graph, data, {});
  48   // assertData(g);
  49   console.log("x");
  50 });
  51
  52 it('testFunctionDefinesArray', function() {
  53   var array = dataArray;
  54   var data = function() { return array; }
  55
  56   var graph = document.getElementById("graph");
  57   var g = new Dygraph(graph, data, {});
  58   assertData(g);
  59 });
  60
  61 it('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       assert.equal(1, str.length);
  73       return str.charCodeAt(0) - "a".charCodeAt(0);
  74     }
  75   });
  76
  77   assert.equal(3, g.getValue(0, 0));
  78   assert.equal(4, g.getValue(1, 0));
  79   assert.equal(5, g.getValue(2, 0));
  80   assert.equal(6, g.getValue(3, 0));
  81 });
  82
  83 var assertData = function(g) {
  84   var expected = dataArray;
  85
  86   assert.equal(4, g.numRows());
  87   assert.equal(2, g.numColumns());
  88
  89   for (var i = 0; i < 4; i++) {
  90     for (var j = 0; j < 2; j++) {
  91       assert.equal(expected[i][j], g.getValue(i, j));
  92     }
  93   }
  94 };
  95
  96 });