ABPCMS.Web/lib/chart.js/test/specs/core.controller.tests.js

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describe('Chart', function() {

	function waitForResize(chart, callback) {
		var resizer = chart.canvas.parentNode._chartjs.resizer;
		var content = resizer.contentWindow || resizer;
		var state = content.document.readyState || 'complete';
		var handler = function() {
			Chart.helpers.removeEvent(content, 'load', handler);
			Chart.helpers.removeEvent(content, 'resize', handler);
			setTimeout(callback, 50);
		};

		Chart.helpers.addEvent(content, state !== 'complete'? 'load' : 'resize', handler);
	}

	// https://github.com/chartjs/Chart.js/issues/2481
	// See global.deprecations.tests.js for backward compatibility
	it('should be defined and prototype of chart instances', function() {
		var chart = acquireChart({});
		expect(Chart).toBeDefined();
		expect(Chart instanceof Object).toBeTruthy();
		expect(chart.constructor).toBe(Chart);
		expect(chart instanceof Chart).toBeTruthy();
		expect(Chart.prototype.isPrototypeOf(chart)).toBeTruthy();
	});

	describe('config initialization', function() {
		it('should create missing config.data properties', function() {
			var chart = acquireChart({});
			var data = chart.data;

			expect(data instanceof Object).toBeTruthy();
			expect(data.labels instanceof Array).toBeTruthy();
			expect(data.labels.length).toBe(0);
			expect(data.datasets instanceof Array).toBeTruthy();
			expect(data.datasets.length).toBe(0);
		});

		it('should not alter config.data references', function() {
			var ds0 = {data: [10, 11, 12, 13]};
			var ds1 = {data: [20, 21, 22, 23]};
			var datasets = [ds0, ds1];
			var labels = [0, 1, 2, 3];
			var data = {labels: labels, datasets: datasets};

			var chart = acquireChart({
				type: 'line',
				data: data
			});

			expect(chart.data).toBe(data);
			expect(chart.data.labels).toBe(labels);
			expect(chart.data.datasets).toBe(datasets);
			expect(chart.data.datasets[0]).toBe(ds0);
			expect(chart.data.datasets[1]).toBe(ds1);
			expect(chart.data.datasets[0].data).toBe(ds0.data);
			expect(chart.data.datasets[1].data).toBe(ds1.data);
		});

		it('should define chart.data as an alias for config.data', function() {