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

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// Test the polar area controller
describe('Polar area controller tests', function() {
	it('should be constructed', function() {
		var chart = window.acquireChart({
			type: 'polarArea',
			data: {
				datasets: [
				{data: []},
				{data: []}
				],
				labels: []
			}
		});

		var meta = chart.getDatasetMeta(1);
		expect(meta.type).toEqual('polarArea');
		expect(meta.data).toEqual([]);
		expect(meta.hidden).toBe(null);
		expect(meta.controller).not.toBe(undefined);
		expect(meta.controller.index).toBe(1);

		meta.controller.updateIndex(0);
		expect(meta.controller.index).toBe(0);
	});

	it('should create arc elements for each data item during initialization', function() {
		var chart = window.acquireChart({
			type: 'polarArea',
			data: {
				datasets: [
					{data: []},
					{data: [10, 15, 0, -4]}
				],
				labels: []
			}
		});

		var meta = chart.getDatasetMeta(1);
		expect(meta.data.length).toBe(4); // 4 arcs created
		expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
		expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
		expect(meta.data[2] instanceof Chart.elements.Arc).toBe(true);
		expect(meta.data[3] instanceof Chart.elements.Arc).toBe(true);
	});

	it('should draw all elements', function() {
		var chart = window.acquireChart({
			type: 'polarArea',
			data: {
				datasets: [{
					data: [10, 15, 0, -4],
					label: 'dataset2'
				}],
				labels: ['label1', 'label2', 'label3', 'label4']
			}
		});

		var meta = chart.getDatasetMeta(0);

		spyOn(meta.data[0], 'draw');