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(); }); }); });