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

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describe('Chart.plugins', function() {
	beforeEach(function() {
		this._plugins = Chart.plugins.getAll();
		Chart.plugins.clear();
	});

	afterEach(function() {
		Chart.plugins.clear();
		Chart.plugins.register(this._plugins);
		delete this._plugins;
	});

	describe('Chart.plugins.register', function() {
		it('should register a plugin', function() {
			Chart.plugins.register({});
			expect(Chart.plugins.count()).toBe(1);
			Chart.plugins.register({});
			expect(Chart.plugins.count()).toBe(2);
		});

		it('should register an array of plugins', function() {
			Chart.plugins.register([{}, {}, {}]);
			expect(Chart.plugins.count()).toBe(3);
		});

		it('should succeed to register an already registered plugin', function() {
			var plugin = {};
			Chart.plugins.register(plugin);
			expect(Chart.plugins.count()).toBe(1);
			Chart.plugins.register(plugin);
			expect(Chart.plugins.count()).toBe(1);
			Chart.plugins.register([{}, plugin, plugin]);
			expect(Chart.plugins.count()).toBe(2);
		});
	});

	describe('Chart.plugins.unregister', function() {
		it('should unregister a plugin', function() {
			var plugin = {};
			Chart.plugins.register(plugin);
			expect(Chart.plugins.count()).toBe(1);
			Chart.plugins.unregister(plugin);
			expect(Chart.plugins.count()).toBe(0);
		});

		it('should unregister an array of plugins', function() {
			var plugins = [{}, {}, {}];
			Chart.plugins.register(plugins);
			expect(Chart.plugins.count()).toBe(3);
			Chart.plugins.unregister(plugins.slice(0, 2));
			expect(Chart.plugins.count()).toBe(1);
		});

		it('should succeed to unregister a plugin not registered', function() {
			var plugin = {};
			Chart.plugins.register(plugin);
			expect(Chart.plugins.count()).toBe(1);
			Chart.plugins.unregister({});
			expect(Chart.plugins.count()).toBe(1);
			Chart.plugins.unregister([{}, plugin]);