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377 lines
9.9 KiB
JavaScript
377 lines
9.9 KiB
JavaScript
// Time scale tests
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describe('Time scale tests', function() {
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var chartInstance;
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beforeEach(function() {
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window.addDefaultMatchers(jasmine);
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});
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afterEach(function() {
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if (chartInstance)
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{
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releaseChart(chartInstance);
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}
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});
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it('Should load moment.js as a dependency', function() {
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expect(window.moment).not.toBe(undefined);
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});
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it('Should register the constructor with the scale service', function() {
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var Constructor = Chart.scaleService.getScaleConstructor('time');
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expect(Constructor).not.toBe(undefined);
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expect(typeof Constructor).toBe('function');
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});
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it('Should have the correct default config', function() {
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var defaultConfig = Chart.scaleService.getScaleDefaults('time');
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expect(defaultConfig).toEqual({
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display: true,
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gridLines: {
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color: "rgba(0, 0, 0, 0.1)",
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drawOnChartArea: true,
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drawTicks: true,
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tickMarkLength: 10,
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lineWidth: 1,
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offsetGridLines: false,
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display: true,
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zeroLineColor: "rgba(0,0,0,0.25)",
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zeroLineWidth: 1
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},
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position: "bottom",
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scaleLabel: {
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labelString: '',
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display: false
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},
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ticks: {
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beginAtZero: false,
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maxRotation: 50,
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mirror: false,
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padding: 10,
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reverse: false,
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display: true,
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callback: defaultConfig.ticks.callback, // make this nicer, then check explicitly below,
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autoSkip: false,
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autoSkipPadding: 0
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},
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time: {
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parser: false,
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format: false,
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unit: false,
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round: false,
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displayFormat: false,
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displayFormats: {
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'millisecond': 'h:mm:ss.SSS a', // 11:20:01.123 AM
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'second': 'h:mm:ss a', // 11:20:01 AM
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'minute': 'h:mm:ss a', // 11:20:01 AM
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'hour': 'MMM D, hA', // Sept 4, 5PM
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'day': 'll', // Sep 4 2015
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'week': 'll', // Week 46, or maybe "[W]WW - YYYY" ?
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'month': 'MMM YYYY', // Sept 2015
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'quarter': '[Q]Q - YYYY', // Q3
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'year': 'YYYY' // 2015
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}
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}
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});
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// Is this actually a function
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expect(defaultConfig.ticks.callback).toEqual(jasmine.any(Function));
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});
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it('should build ticks using days', function() {
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var scaleID = 'myScale';
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var mockData = {
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labels: ["2015-01-01T20:00:00", "2015-01-02T21:00:00", "2015-01-03T22:00:00", "2015-01-05T23:00:00", "2015-01-07T03:00", "2015-01-08T10:00", "2015-01-10T12:00"], // days
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};
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var mockContext = window.createMockContext();
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var Constructor = Chart.scaleService.getScaleConstructor('time');
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var scale = new Constructor({
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ctx: mockContext,
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options: Chart.scaleService.getScaleDefaults('time'), // use default config for scale
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chart: {
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data: mockData
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},
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id: scaleID
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});
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//scale.buildTicks();
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scale.update(400, 50);
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// Counts down because the lines are drawn top to bottom
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expect(scale.ticks).toEqual([ 'Dec 28, 2014', 'Jan 11, 2015' ]);
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});
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it('should build ticks using date objects', function() {
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// Helper to build date objects
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function newDateFromRef(days) {
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return moment('01/01/2015 12:00', 'DD/MM/YYYY HH:mm').add(days, 'd').toDate();
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}
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var scaleID = 'myScale';
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var mockData = {
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labels: [newDateFromRef(0), newDateFromRef(1), newDateFromRef(2), newDateFromRef(4), newDateFromRef(6), newDateFromRef(7), newDateFromRef(9)], // days
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};
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var mockContext = window.createMockContext();
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var Constructor = Chart.scaleService.getScaleConstructor('time');
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var scale = new Constructor({
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ctx: mockContext,
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options: Chart.scaleService.getScaleDefaults('time'), // use default config for scale
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chart: {
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data: mockData
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},
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id: scaleID
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});
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scale.update(400, 50);
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// Counts down because the lines are drawn top to bottom
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expect(scale.ticks).toEqual([ 'Dec 28, 2014', 'Jan 11, 2015' ]);
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});
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it('should build ticks when the data is xy points', function() {
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// Helper to build date objects
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function newDateFromRef(days) {
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return moment('01/01/2015 12:00', 'DD/MM/YYYY HH:mm').add(days, 'd').toDate();
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}
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chartInstance = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: [{
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x: newDateFromRef(0),
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y: 1
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}, {
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x: newDateFromRef(1),
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y: 10
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}, {
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x: newDateFromRef(2),
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y: 0
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}, {
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x: newDateFromRef(4),
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y: 5
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}, {
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x: newDateFromRef(6),
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y: 77
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}, {
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x: newDateFromRef(7),
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y: 9
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}, {
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x: newDateFromRef(9),
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y: 5
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}]
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}],
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'time',
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position: 'bottom'
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}],
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yAxes: [{
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id: 'yScale0',
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type: 'linear'
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}]
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}
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}
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});
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// Counts down because the lines are drawn top to bottom
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var xScale = chartInstance.scales.xScale0;
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expect(xScale.ticks).toEqual([ 'Jan 1, 2015', 'Jan 3, 2015', 'Jan 5, 2015', 'Jan 7, 2015', 'Jan 9, 2015', 'Jan 11, 2015' ]);
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});
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it('should allow custom time parsers', function() {
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chartInstance = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: [{
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x: 375068900,
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y: 1
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}]
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}],
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'time',
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position: 'bottom',
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time: {
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unit: 'day',
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round: true,
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parser: function customTimeParser(label) {
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return moment.unix(label);
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}
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}
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}],
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yAxes: [{
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id: 'yScale0',
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type: 'linear'
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}]
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}
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}
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});
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// Counts down because the lines are drawn top to bottom
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var xScale = chartInstance.scales.xScale0;
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// Counts down because the lines are drawn top to bottom
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expect(xScale.ticks[0]).toEqualOneOf(['Nov 19, 1981', 'Nov 20, 1981']); // handle time zone changes
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expect(xScale.ticks[1]).toEqualOneOf(['Nov 19, 1981', 'Nov 20, 1981']); // handle time zone changes
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});
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it('should build ticks using the config unit', function() {
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var scaleID = 'myScale';
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var mockData = {
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labels: ["2015-01-01T20:00:00", "2015-01-02T21:00:00"], // days
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};
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var mockContext = window.createMockContext();
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('time'));
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config.time.unit = 'hour';
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var Constructor = Chart.scaleService.getScaleConstructor('time');
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var scale = new Constructor({
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ctx: mockContext,
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options: config, // use default config for scale
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chart: {
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data: mockData
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},
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id: scaleID
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});
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//scale.buildTicks();
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scale.update(400, 50);
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expect(scale.ticks).toEqual(['Jan 1, 8PM', 'Jan 1, 9PM', 'Jan 1, 10PM', 'Jan 1, 11PM', 'Jan 2, 12AM', 'Jan 2, 1AM', 'Jan 2, 2AM', 'Jan 2, 3AM', 'Jan 2, 4AM', 'Jan 2, 5AM', 'Jan 2, 6AM', 'Jan 2, 7AM', 'Jan 2, 8AM', 'Jan 2, 9AM', 'Jan 2, 10AM', 'Jan 2, 11AM', 'Jan 2, 12PM', 'Jan 2, 1PM', 'Jan 2, 2PM', 'Jan 2, 3PM', 'Jan 2, 4PM', 'Jan 2, 5PM', 'Jan 2, 6PM', 'Jan 2, 7PM', 'Jan 2, 8PM', 'Jan 2, 9PM']);
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});
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it('should build ticks using the config diff', function() {
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var scaleID = 'myScale';
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var mockData = {
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labels: ["2015-01-01T20:00:00", "2015-02-02T21:00:00", "2015-02-21T01:00:00"], // days
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};
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var mockContext = window.createMockContext();
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('time'));
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config.time.unit = 'week';
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config.time.round = 'week';
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var Constructor = Chart.scaleService.getScaleConstructor('time');
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var scale = new Constructor({
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ctx: mockContext,
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options: config, // use default config for scale
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chart: {
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data: mockData
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},
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id: scaleID
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});
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//scale.buildTicks();
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scale.update(400, 50);
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// last date is feb 15 because we round to start of week
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expect(scale.ticks).toEqual(['Dec 28, 2014', 'Jan 4, 2015', 'Jan 11, 2015', 'Jan 18, 2015', 'Jan 25, 2015', 'Feb 1, 2015', 'Feb 8, 2015', 'Feb 15, 2015']);
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});
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it('Should use the min and max options', function() {
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var scaleID = 'myScale';
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var mockData = {
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labels: ["2015-01-01T20:00:00", "2015-01-02T20:00:00", "2015-01-03T20:00:00"], // days
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};
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var mockContext = window.createMockContext();
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('time'));
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config.time.min = "2015-01-01T04:00:00";
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config.time.max = "2015-01-05T06:00:00"
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var Constructor = Chart.scaleService.getScaleConstructor('time');
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var scale = new Constructor({
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ctx: mockContext,
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options: config, // use default config for scale
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chart: {
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data: mockData
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},
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id: scaleID
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});
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scale.update(400, 50);
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expect(scale.ticks).toEqual([ 'Jan 1, 2015', 'Jan 5, 2015' ]);
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});
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it('should get the correct pixel for a value', function() {
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chartInstance = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: []
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}],
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labels: ["2015-01-01T20:00:00", "2015-01-02T21:00:00", "2015-01-03T22:00:00", "2015-01-05T23:00:00", "2015-01-07T03:00", "2015-01-08T10:00", "2015-01-10T12:00"], // days
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'time',
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position: 'bottom'
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}],
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yAxes: [{
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id: 'yScale0',
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type: 'linear',
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position: 'left'
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}]
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}
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}
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});
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var xScale = chartInstance.scales.xScale0;
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expect(xScale.getPixelForValue('', 0, 0)).toBeCloseToPixel(78);
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expect(xScale.getPixelForValue('', 6, 0)).toBeCloseToPixel(466);
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});
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it('should get the correct label for a data value', function() {
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chartInstance = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: []
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}],
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labels: ["2015-01-01T20:00:00", "2015-01-02T21:00:00", "2015-01-03T22:00:00", "2015-01-05T23:00:00", "2015-01-07T03:00", "2015-01-08T10:00", "2015-01-10T12:00"], // days
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'time',
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position: 'bottom'
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}],
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yAxes: [{
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id: 'yScale0',
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type: 'linear',
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position: 'left'
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}]
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}
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}
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});
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var xScale = chartInstance.scales.xScale0;
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expect(xScale.getLabelForIndex(0, 0)).toBe('2015-01-01T20:00:00');
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expect(xScale.getLabelForIndex(6, 0)).toBe('2015-01-10T12:00');
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});
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});
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