auto_tests/tests/parser.js

   1 /**
   2  * @fileoverview Tests the way that dygraphs parses data.
   3  *
   4  * @author danvk@google.com (Dan Vanderkam)
   5  */
   6 describe("parser", function() {
   7
   8 beforeEach(function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10 });
  11
  12 afterEach(function() {
  13 });
  14
  15 it('testDetectLineDelimiter', function() {
  16   var data = "X,Y\r" +
  17       "0,-1\r" +
  18       "1,0\r" +
  19       "2,1\r" +
  20       "3,0\r"
  21   ;
  22   assert.equal("\r", Dygraph.detectLineDelimiter(data));
  23
  24   data = "X,Y\n" +
  25       "0,-1\n" +
  26       "1,0\n" +
  27       "2,1\n" +
  28       "3,0\n"
  29   ;
  30   assert.equal("\n", Dygraph.detectLineDelimiter(data));
  31
  32   data = "X,Y\n\r" +
  33       "0,-1\n\r" +
  34       "1,0\n\r" +
  35       "2,1\n\r" +
  36       "3,0\n\r"
  37   ;
  38   assert.equal("\n\r", Dygraph.detectLineDelimiter(data));
  39 });
  40
  41 it('testParseDosNewlines', function() {
  42   var opts = {
  43     width: 480,
  44     height: 320
  45   };
  46   var data = "X,Y\r" +
  47       "0,-1\r" +
  48       "1,0\r" +
  49       "2,1\r" +
  50       "3,0\r"
  51   ;
  52
  53   var g = new Dygraph('graph', data, opts);
  54   assert.equal(0, g.getValue(0, 0));
  55   assert.equal(-1, g.getValue(0, 1));
  56   assert.equal(1, g.getValue(1, 0));
  57   assert.equal(0, g.getValue(1, 1));
  58   assert.deepEqual(['X', 'Y'], g.getLabels());
  59 });
  60
  61 it('should parse tab-delimited data', function() {
  62   var data = "X\tY\n" +
  63       "0\t-1\n" +
  64       "1\t0\n" +
  65       "2\t1\n" +
  66       "3\t0\n";
  67
  68   var g = new Dygraph('graph', data);
  69   assert.equal(0, g.getValue(0, 0));
  70   assert.equal(-1, g.getValue(0, 1));
  71   assert.equal(1, g.getValue(1, 0));
  72   assert.equal(0, g.getValue(1, 1));
  73   assert.deepEqual(['X', 'Y'], g.getLabels());
  74 });
  75
  76 it('should parse fractions', function() {
  77   var data = "X,Y\n" +
  78       "0,1/4\n" +
  79       "1,2/4\n" +
  80       "2,3/4\n" +
  81       "3,4/4\n";
  82   var g = new Dygraph('graph', data, {fractions:true});
  83
  84   assert.equal(0, g.getValue(0, 0));
  85   assert.deepEqual([1, 4], g.getValue(0, 1));
  86   assert.equal(1, g.getValue(1, 0));
  87   assert.deepEqual([2, 4], g.getValue(1, 1));
  88   assert.deepEqual(['X', 'Y'], g.getLabels());
  89 });
  90
  91 it('should parse error bars', function() {
  92   var data = "X,Y\n" +
  93       "0,1,4\n" +
  94       "1,2,4\n" +
  95       "2,3,4\n" +
  96       "3,4,4\n";
  97   var g = new Dygraph('graph', data, {errorBars:true});
  98
  99   assert.equal(0, g.getValue(0, 0));
 100   assert.deepEqual([1, 4], g.getValue(0, 1));
 101   assert.equal(1, g.getValue(1, 0));
 102   assert.deepEqual([2, 4], g.getValue(1, 1));
 103   assert.deepEqual(['X', 'Y'], g.getLabels());
 104 });
 105
 106 it('should parse custom bars', function() {
 107   var data = "X,Y1,Y2\n" +
 108              "1,10;20;30,20;5;25\n" +
 109              "2,10;25;35,20;10;25\n";
 110   var g = new Dygraph('graph', data, {customBars:true});
 111
 112   assert.equal(1, g.getValue(0, 0));
 113   assert.deepEqual([10, 20, 30], g.getValue(0, 1));
 114   assert.deepEqual([20, 5, 25], g.getValue(0, 2));
 115   assert.equal(2, g.getValue(1, 0));
 116   assert.deepEqual([10, 25, 35], g.getValue(1, 1));
 117   assert.deepEqual([20, 10, 25], g.getValue(1, 2));
 118   assert.deepEqual(['X', 'Y1', 'Y2'], g.getLabels());
 119 });
 120
 121 /*
 122 it('should warn on unsorted input', function() {
 123 });
 124
 125 it('should warn on different length columns', function() {
 126 });
 127
 128 it('should detect double-labeled data', function() {
 129 });
 130 */
 131
 132 });