describe('c3 chart legend', function () { 'use strict'; var chart, args; beforeEach(function (done) { chart = window.initChart(chart, args, done); }); describe('legend position', function () { it('should update args', function () { args = { data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ['data2', 50, 20, 10, 40, 15, 25] ] } }; expect(true).toBeTruthy(); }); it('should be located on the center of chart', function () { var box = chart.internal.legend.node().getBoundingClientRect(); expect(box.left + box.right).toBe(640); }); }); describe('legend as inset', function () { it('should change the legend to "inset" successfully', function () { args = { data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ['data2', 50, 20, 10, 40, 15, 25] ] }, legend: { position: 'inset', inset: { step: null } } }; expect(true).toBeTruthy(); }); it('should be positioned properly', function () { var box = d3.select('.c3-legend-background').node().getBoundingClientRect(); expect(box.top).toBe(5.5); expect(box.left).toBeGreaterThan(30); }); it('should have automatically calculated height', function () { var box = d3.select('.c3-legend-background').node().getBoundingClientRect(); expect(box.height).toBe(48); }); it('should change the legend step to 1 successfully', function () { args.legend.inset.step = 1; expect(true).toBeTruthy(); }); it('should have automatically calculated height', function () { var box = d3.select('.c3-legend-background').node().getBoundingClientRect(); expect(box.height).toBe(28); }); it('should change the legend step to 2 successfully', function () { args.legend.inset.step = 2; expect(true).toBeTruthy(); }); it('should have automatically calculated height', function () { var box = d3.select('.c3-legend-background').node().getBoundingClientRect(); expect(box.height).toBe(48); }); it('should update args to have only one series', function () { args = { data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ] }, legend: { position: 'inset' } }; expect(true).toBeTruthy(); }); it('should locate legend properly', function () { var box = d3.select('.c3-legend-background').node().getBoundingClientRect(); expect(box.height).toBe(28); expect(box.width).toBeGreaterThan(64); }); }); describe('legend.hide', function () { it('should update args', function () { args = { data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ['data2', 130, 100, 200, 100, 250, 150] ] }, legend: { hide: true } }; expect(true).toBeTruthy(); }); it('should not show legends', function () { d3.selectAll('.c3-legend-item').each(function () { expect(d3.select(this).style('visibility')).toBe('hidden'); }); }); it('should update args', function () { args = { data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ['data2', 130, 100, 200, 100, 250, 150] ] }, legend: { hide: 'data2' } }; expect(true).toBeTruthy(); }); it('should not show legends', function () { expect(d3.select('.c3-legend-item-data1').style('visibility')).toBe('visible'); expect(d3.select('.c3-legend-item-data2').style('visibility')).toBe('hidden'); }); }); describe('legend.show', function () { it('should update args', function () { args = { data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ['data2', 130, 100, 200, 100, 250, 150] ] }, legend: { show: false } }; expect(true).toBeTruthy(); }); it('should not initially have rendered any legend items', function () { expect(d3.selectAll('.c3-legend-item').empty()).toBe(true); }); it('allows us to show the legend on showLegend call', function () { chart.legend.show(); d3.selectAll('.c3-legend-item').each(function () { expect(d3.select(this).style('visibility')).toBe('visible'); // This selects all the children, but we expect it to be empty expect(d3.select(this).selectAll("*").length).not.toEqual(0); }); }); }); });