auto_tests/tests/scientific_notation.js

   1 /**
   2  * @fileoverview Tests input data which uses scientific notation.
   3  * This is a regression test for
   4  * http://code.google.com/p/dygraphs/issues/detail?id=186
   5  *
   6  * @author danvk@google.com (Dan Vanderkam)
   7  */
   8 describe("scientific-notation", function() {
   9
  10 beforeEach(function() {
  11   document.body.innerHTML = "<div id='graph'></div>";
  12 });
  13
  14 afterEach(function() {
  15 });
  16
  17 function getXValues(g) {
  18   var xs = [];
  19   for (var i = 0; i < g.numRows(); i++) {
  20     xs.push(g.getValue(i, 0));
  21   }
  22   return xs;
  23 }
  24
  25 it('testScientificInput', function() {
  26   var data = "X,Y\n" +
  27       "1.0e1,-1\n" +
  28       "2.0e1,0\n" +
  29       "3.0e1,1\n" +
  30       "4.0e1,0\n"
  31   ;
  32
  33   var graph = document.getElementById("graph");
  34   var g = new Dygraph(graph, data, {});
  35   assertDeepCloseTo([10, 20, 30, 40], getXValues(g), 1e-6);
  36 });
  37
  38 it('testScientificInputPlus', function() {
  39   var data = "X,Y\n" +
  40       "1.0e+1,-1\n" +
  41       "2.0e+1,0\n" +
  42       "3.0e+1,1\n" +
  43       "4.0e+1,0\n"
  44   ;
  45
  46   var graph = document.getElementById("graph");
  47   var g = new Dygraph(graph, data, {});
  48   assertDeepCloseTo([10, 20, 30, 40], getXValues(g), 1e-6);
  49 });
  50
  51 it('testScientificInputMinus', function() {
  52   var data = "X,Y\n" +
  53       "1.0e-1,-1\n" +
  54       "2.0e-1,0\n" +
  55       "3.0e-1,1\n" +
  56       "4.0e-1,0\n"
  57   ;
  58
  59   var graph = document.getElementById("graph");
  60   var g = new Dygraph(graph, data, {});
  61   assertDeepCloseTo([0.1, 0.2, 0.3, 0.4], getXValues(g), 1e-6);
  62 });
  63
  64 it('testScientificInputMinusCap', function() {
  65   var data = "X,Y\n" +
  66       "1.0E-1,-1\n" +
  67       "2.0E-1,0\n" +
  68       "3.0E-1,1\n" +
  69       "4.0E-1,0\n"
  70   ;
  71
  72   var graph = document.getElementById("graph");
  73   var g = new Dygraph(graph, data, {});
  74   assertDeepCloseTo([0.1, 0.2, 0.3, 0.4], getXValues(g), 1e-6);
  75 });
  76
  77 });