html5 boiler plate
[scannr.git] / js / flotr2 / spec / Flotr.js
blob:a/js/flotr2/spec/Flotr.js -> blob:b/js/flotr2/spec/Flotr.js
  describe('Flotr', function () {
   
  describe('Plots', function () {
   
  var
  nodeA, nodeB,
  a, b;
   
  beforeEach(function () {
   
  // Add imagediff matchers
  this.addMatchers(imagediff.jasmine);
   
  nodeA = buildNode();
  nodeB = buildNode();
  });
   
  afterEach(function () {
  destroyNode(nodeA);
  destroyNode(nodeB);
  a = null;
  b = null;
  Flotr = null;
  });
   
  _.each(TestFlotr.ExampleList.examples, function (example, key) {
   
  it('should draw a `' + example.name + '`line graph', function () {
   
  executeExampleTest(example, StableFlotr, nodeA);
  executeExampleTest(example, TestFlotr, nodeB);
   
  if (example.timeout) {
  waits(example.timeout);
  runs (function () {
  expect(nodeB.graph.ctx).toImageDiffEqual(nodeA.graph.ctx, example.tolerance || 0);
  });
  } else {
  expect(nodeB.graph.ctx).toImageDiffEqual(nodeA.graph.ctx, example.tolerance || 0);
  }
  });
  });
   
  // Helpers
   
  function executeExampleTest (example, flotr, node) {
  Math.seedrandom(example.key);
  Flotr = flotr;
  example.callback.apply(this, [node].concat(example.args || []));
  }
   
  function buildNode () {
  var node = document.createElement('div');
  document.body.appendChild(node);
  node.style.width = '320px';
  node.style.height = '240px';
  return node;
  }
   
  function destroyNode (node) {
  document.body.removeChild(node);
  }
  });
   
  describe('Main', function () {
   
  it('gets a tick size', function () {
  expect(TestFlotr.getTickSize).not.toBeUndefined();
  expect(TestFlotr.getTickSize(10, 0, 100, 1)).toEqual(10);
  expect(TestFlotr.getTickSize(20, 0, 100, 1)).toEqual(5);
  expect(TestFlotr.getTickSize(5, 10, 110, 1)).toEqual(20);
  expect(TestFlotr.getTickSize(0, 0, 10, 1)).toEqual(Number.POSITIVE_INFINITY);
  expect(isNaN(TestFlotr.getTickSize(0, 0, -10, 1))).toBeTruthy();
  });
  });
  });