Chart.js/test/specs/controller.scatter.tests.js

describe('Chart.controllers.scatter', function() {
	describe('auto', jasmine.fixture.specs('controller.scatter'));

	it('should be registered as dataset controller', function() {
		expect(typeof Chart.controllers.scatter).toBe('function');
	});

	it('should test default tooltip callbacks', function(done) {
		var chart = window.acquireChart({
			type: 'scatter',
			data: {
				datasets: [{
					data: [{
						x: 10,
						y: 15
					}],
					label: 'dataset1'
				}],
			},
			options: {}
		});
		var point = chart.getDatasetMeta(0).data[0];

		afterEvent(chart, 'mousemove', function() {
			// Title should be empty
			expect(chart.tooltip.title.length).toBe(0);
			expect(chart.tooltip.body[0].lines).toEqual(['(10, 15)']);

			done();
		});

		jasmine.triggerMouseEvent(chart, 'mousemove', point);
	});

	it('should only show a single point in the tooltip on multiple datasets', function(done) {
		var chart = window.acquireChart({
			type: 'scatter',
			data: {
				datasets: [{
					data: [{
						x: 10,
						y: 15
					},
					{
						x: 12,
						y: 10
					}],
					label: 'dataset1'
				},
				{
					data: [{
						x: 20,
						y: 10
					},
					{
						x: 4,
						y: 8
					}],
					label: 'dataset2'
				}]
			},
			options: {}
		});
		var point = chart.getDatasetMeta(0).data[1];

		afterEvent(chart, 'mousemove', function() {
			expect(chart.tooltip.body.length).toEqual(1);

			done();
		});

		jasmine.triggerMouseEvent(chart, 'mousemove', point);
	});
});