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WebRoot/node_modules/chart.js/test/specs/helpers.canvas.tests.js

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+'use strict';
+
+describe('Chart.helpers.canvas', function() {
+	var helpers = Chart.helpers;
+
+	describe('clear', function() {
+		it('should clear the chart canvas', function() {
+			var chart = acquireChart({}, {
+				canvas: {
+					style: 'width: 150px; height: 245px'
+				}
+			});
+
+			spyOn(chart.ctx, 'clearRect');
+
+			helpers.canvas.clear(chart);
+
+			expect(chart.ctx.clearRect.calls.count()).toBe(1);
+			expect(chart.ctx.clearRect.calls.first().object).toBe(chart.ctx);
+			expect(chart.ctx.clearRect.calls.first().args).toEqual([0, 0, 150, 245]);
+		});
+	});
+
+	describe('roundedRect', function() {
+		it('should create a rounded rectangle path', function() {
+			var context = window.createMockContext();
+
+			helpers.canvas.roundedRect(context, 10, 20, 30, 40, 5);
+
+			expect(context.getCalls()).toEqual([
+				{name: 'moveTo', args: [15, 20]},
+				{name: 'lineTo', args: [35, 20]},
+				{name: 'quadraticCurveTo', args: [40, 20, 40, 25]},
+				{name: 'lineTo', args: [40, 55]},
+				{name: 'quadraticCurveTo', args: [40, 60, 35, 60]},
+				{name: 'lineTo', args: [15, 60]},
+				{name: 'quadraticCurveTo', args: [10, 60, 10, 55]},
+				{name: 'lineTo', args: [10, 25]},
+				{name: 'quadraticCurveTo', args: [10, 20, 15, 20]}
+			]);
+		});
+		it('should optimize path if radius is 0', function() {
+			var context = window.createMockContext();
+
+			helpers.canvas.roundedRect(context, 10, 20, 30, 40, 0);
+
+			expect(context.getCalls()).toEqual([{name: 'rect', args: [10, 20, 30, 40]}]);
+		});
+	});
+});