mirror of
https://github.com/chartjs/Chart.js.git
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69a5082bd6
* Make autoskip aware of major ticks * Address review comments * Fix codeclimate warning * Add test for major and minor tick autoskipping * Revert change for determining _majorUnit and fix sample
1899 lines
53 KiB
JavaScript
Executable File
1899 lines
53 KiB
JavaScript
Executable File
// Time scale tests
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describe('Time scale tests', function() {
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function createScale(data, options, dimensions) {
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var scaleID = 'myScale';
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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: options,
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chart: {
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data: data
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},
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id: scaleID
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});
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var width = (dimensions && dimensions.width) || 400;
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var height = (dimensions && dimensions.height) || 50;
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scale.update(width, height);
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return scale;
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}
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function getTicksLabels(scale) {
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return scale.ticks;
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}
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beforeEach(function() {
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// Need a time matcher for getValueFromPixel
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jasmine.addMatchers({
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toBeCloseToTime: function() {
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return {
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compare: function(actual, expected) {
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var result = false;
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var diff = actual.diff(expected.value, expected.unit, true);
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result = Math.abs(diff) < (expected.threshold !== undefined ? expected.threshold : 0.01);
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return {
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pass: result
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};
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}
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};
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}
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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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drawBorder: true,
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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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zeroLineBorderDash: [],
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zeroLineBorderDashOffset: 0.0,
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borderDash: [],
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borderDashOffset: 0.0
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},
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position: 'bottom',
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offset: false,
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scaleLabel: Chart.defaults.scale.scaleLabel,
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bounds: 'data',
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distribution: 'linear',
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adapters: {},
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ticks: {
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beginAtZero: false,
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minRotation: 0,
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maxRotation: 50,
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mirror: false,
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source: 'auto',
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padding: 0,
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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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labelOffset: 0,
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minor: {},
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major: {
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enabled: false
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},
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},
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time: {
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parser: false,
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unit: false,
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round: false,
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isoWeekday: false,
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displayFormat: false,
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minUnit: 'millisecond',
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displayFormats: {}
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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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describe('when given inputs of different types', 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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it('should accept labels as strings', function() {
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var mockData = {
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labels: ['2015-01-01T12:00:00', '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 scaleOptions = Chart.scaleService.getScaleDefaults('time');
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var scale = createScale(mockData, scaleOptions, {width: 1000, height: 200});
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var ticks = getTicksLabels(scale);
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// `bounds === 'data'`: first and last ticks removed since outside the data range
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expect(ticks).toEqual(['Jan 2', 'Jan 3', 'Jan 4', 'Jan 5', 'Jan 6', 'Jan 7', 'Jan 8', 'Jan 9', 'Jan 10']);
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});
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it('should accept labels as date objects', function() {
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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 scale = createScale(mockData, Chart.scaleService.getScaleDefaults('time'), {width: 1000, height: 200});
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var ticks = getTicksLabels(scale);
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// `bounds === 'data'`: first and last ticks removed since outside the data range
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expect(ticks).toEqual(['Jan 2', 'Jan 3', 'Jan 4', 'Jan 5', 'Jan 6', 'Jan 7', 'Jan 8', 'Jan 9', 'Jan 10']);
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});
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it('should accept data as xy points', function() {
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var chart = 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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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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}
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}
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}, {canvas: {width: 800, height: 200}});
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var xScale = chart.scales.xScale0;
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var ticks = getTicksLabels(xScale);
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// `bounds === 'data'`: first and last ticks removed since outside the data range
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expect(ticks).toEqual(['Jan 2', 'Jan 3', 'Jan 4', 'Jan 5', 'Jan 6', 'Jan 7', 'Jan 8', 'Jan 9', 'Jan 10']);
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});
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it('should accept data as ty points', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'tScale0',
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data: [{
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t: newDateFromRef(0),
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y: 1
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}, {
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t: newDateFromRef(1),
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y: 10
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}, {
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t: newDateFromRef(2),
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y: 0
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}, {
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t: newDateFromRef(4),
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y: 5
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}, {
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t: newDateFromRef(6),
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y: 77
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}, {
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t: newDateFromRef(7),
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y: 9
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}, {
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t: 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: 'tScale0',
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type: 'time',
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position: 'bottom'
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}],
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}
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}
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}, {canvas: {width: 800, height: 200}});
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var tScale = chart.scales.tScale0;
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var ticks = getTicksLabels(tScale);
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// `bounds === 'data'`: first and last ticks removed since outside the data range
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expect(ticks).toEqual(['Jan 2', 'Jan 3', 'Jan 4', 'Jan 5', 'Jan 6', 'Jan 7', 'Jan 8', 'Jan 9', 'Jan 10']);
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});
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});
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it('should allow custom time parsers', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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labels: ['foo', 'bar'],
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datasets: [{
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xAxisID: 'xScale0',
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data: [0, 1]
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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(label) {
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return label === 'foo' ?
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moment('2000/01/02', 'YYYY/MM/DD') :
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moment('2016/05/08', 'YYYY/MM/DD');
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}
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},
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ticks: {
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source: 'labels'
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}
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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 = chart.scales.xScale0;
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// Counts down because the lines are drawn top to bottom
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expect(xScale.ticks[0]).toBe('Jan 2');
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expect(xScale.ticks[1]).toBe('May 8');
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});
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it('should build ticks using the config unit', function() {
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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 config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('time'));
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config.time.unit = 'hour';
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var scale = createScale(mockData, config, {width: 2500, height: 200});
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var ticks = getTicksLabels(scale);
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expect(ticks).toEqual(['8PM', '9PM', '10PM', '11PM', '12AM', '1AM', '2AM', '3AM', '4AM', '5AM', '6AM', '7AM', '8AM', '9AM', '10AM', '11AM', '12PM', '1PM', '2PM', '3PM', '4PM', '5PM', '6PM', '7PM', '8PM', '9PM']);
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});
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it('should build ticks honoring the minUnit', function() {
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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 config = Chart.helpers.mergeIf({
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bounds: 'ticks',
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time: {
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minUnit: 'day'
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}
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}, Chart.scaleService.getScaleDefaults('time'));
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var scale = createScale(mockData, config);
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var ticks = getTicksLabels(scale);
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expect(ticks).toEqual(['Jan 1', 'Jan 2', 'Jan 3']);
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});
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it('should correctly determine the unit', function() {
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var date = moment('Jan 01 1990', 'MMM DD YYYY');
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var data = [];
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for (var i = 0; i < 60; i++) {
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data.push({x: date.valueOf(), y: Math.random()});
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date = date.clone().add(1, 'month');
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}
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var chart = 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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data: data
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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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ticks: {
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source: 'data',
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autoSkip: true
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}
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}],
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}
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}
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});
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var scale = chart.scales.xScale0;
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expect(scale._unit).toEqual('month');
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});
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it('should build ticks based on the appropriate label capacity', function() {
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var mockData = {
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labels: [
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'2012-01-01', '2013-01-01', '2014-01-01', '2015-01-01',
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'2016-01-01', '2017-01-01', '2018-01-01', '2019-01-01'
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]
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};
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var config = Chart.helpers.mergeIf({
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time: {
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unit: 'year'
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}
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}, Chart.scaleService.getScaleDefaults('time'));
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var scale = createScale(mockData, config);
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var ticks = getTicksLabels(scale);
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expect(ticks).toEqual(['2012', '2013', '2014', '2015', '2016', '2017', '2018', '2019']);
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});
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it('should build ticks using the config diff', function() {
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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 config = Chart.helpers.mergeIf({
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bounds: 'ticks',
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time: {
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unit: 'week',
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round: 'week'
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}
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}, Chart.scaleService.getScaleDefaults('time'));
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var scale = createScale(mockData, config, {width: 800, height: 200});
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var ticks = getTicksLabels(scale);
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// last date is feb 15 because we round to start of week
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expect(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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describe('config step size', function() {
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it('should use the stepSize property', function() {
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var mockData = {
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labels: ['2015-01-01T20:00:00', '2015-01-01T21:00:00'],
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};
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var config = Chart.helpers.mergeIf({
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bounds: 'ticks',
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time: {
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unit: 'hour',
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stepSize: 2
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}
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}, Chart.scaleService.getScaleDefaults('time'));
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var scale = createScale(mockData, config, {width: 2500, height: 200});
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var ticks = getTicksLabels(scale);
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expect(ticks).toEqual(['8PM', '10PM']);
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});
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});
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describe('when specifying limits', function() {
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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'],
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};
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var config;
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beforeEach(function() {
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config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('time'));
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config.ticks.source = 'labels';
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config.time.unit = 'day';
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});
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it('should use the min option when less than first label for building ticks', function() {
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config.ticks.min = '2014-12-29T04:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[0]).toEqual('Jan 1');
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});
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it('should use the min option when greater than first label for building ticks', function() {
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config.ticks.min = '2015-01-02T04:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[0]).toEqual('Jan 2');
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});
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it('should use the max option when greater than last label for building ticks', function() {
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config.ticks.max = '2015-01-05T06:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[scale.ticks.length - 1]).toEqual('Jan 3');
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});
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it('should use the max option when less than last label for building ticks', function() {
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config.ticks.max = '2015-01-02T23:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[scale.ticks.length - 1]).toEqual('Jan 2');
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});
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});
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describe('when specifying limits in a deprecated fashion', function() {
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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'],
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};
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var config;
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beforeEach(function() {
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config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('time'));
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config.ticks.source = 'labels';
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config.time.unit = 'day';
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});
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it('should use the min option when less than first label for building ticks', function() {
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config.ticks.min = '2014-12-29T04:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[0]).toEqual('Jan 1');
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});
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it('should use the min option when greater than first label for building ticks', function() {
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config.ticks.min = '2015-01-02T04:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[0]).toEqual('Jan 2');
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});
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it('should use the max option when greater than last label for building ticks', function() {
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config.ticks.max = '2015-01-05T06:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[scale.ticks.length - 1]).toEqual('Jan 3');
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});
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it('should use the max option when less than last label for building ticks', function() {
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config.ticks.max = '2015-01-02T23:00:00';
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var scale = createScale(mockData, config);
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expect(scale.ticks[scale.ticks.length - 1]).toEqual('Jan 2');
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});
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});
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it('should use the isoWeekday option', function() {
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var mockData = {
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labels: [
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'2015-01-01T20:00:00', // Thursday
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'2015-01-02T20:00:00', // Friday
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'2015-01-03T20:00:00' // Saturday
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]
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};
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var config = Chart.helpers.mergeIf({
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bounds: 'ticks',
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time: {
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unit: 'week',
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isoWeekday: 3 // Wednesday
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}
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}, Chart.scaleService.getScaleDefaults('time'));
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var scale = createScale(mockData, config);
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var ticks = getTicksLabels(scale);
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expect(ticks).toEqual(['Dec 31, 2014', 'Jan 7, 2015']);
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});
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describe('when rendering several days', function() {
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beforeEach(function() {
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this.chart = 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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data: []
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}],
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labels: [
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'2015-01-01T20:00:00',
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'2015-01-02T21:00:00',
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'2015-01-03T22:00:00',
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'2015-01-05T23:00:00',
|
|
'2015-01-07T03:00',
|
|
'2015-01-08T10:00',
|
|
'2015-01-10T12:00'
|
|
]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
position: 'bottom'
|
|
}],
|
|
}
|
|
}
|
|
});
|
|
|
|
this.scale = this.chart.scales.xScale0;
|
|
});
|
|
|
|
it('should be bounded by the nearest week beginnings', function() {
|
|
var chart = this.chart;
|
|
var scale = this.scale;
|
|
expect(scale.getValueForPixel(scale.left)).toBeGreaterThan(moment(chart.data.labels[0]).startOf('week'));
|
|
expect(scale.getValueForPixel(scale.right)).toBeLessThan(moment(chart.data.labels[chart.data.labels.length - 1]).add(1, 'week').endOf('week'));
|
|
});
|
|
|
|
it('should convert between screen coordinates and times', function() {
|
|
var chart = this.chart;
|
|
var scale = this.scale;
|
|
var timeRange = moment(scale.max).valueOf() - moment(scale.min).valueOf();
|
|
var msPerPix = timeRange / scale.width;
|
|
var firstPointOffsetMs = moment(chart.config.data.labels[0]).valueOf() - scale.min;
|
|
var firstPointPixel = scale.left + firstPointOffsetMs / msPerPix;
|
|
var lastPointOffsetMs = moment(chart.config.data.labels[chart.config.data.labels.length - 1]).valueOf() - scale.min;
|
|
var lastPointPixel = scale.left + lastPointOffsetMs / msPerPix;
|
|
|
|
expect(scale.getPixelForValue('', 0, 0)).toBeCloseToPixel(firstPointPixel);
|
|
expect(scale.getPixelForValue(chart.data.labels[0])).toBeCloseToPixel(firstPointPixel);
|
|
expect(scale.getValueForPixel(firstPointPixel)).toBeCloseToTime({
|
|
value: moment(chart.data.labels[0]),
|
|
unit: 'hour',
|
|
});
|
|
|
|
expect(scale.getPixelForValue('', 6, 0)).toBeCloseToPixel(lastPointPixel);
|
|
expect(scale.getValueForPixel(lastPointPixel)).toBeCloseToTime({
|
|
value: moment(chart.data.labels[6]),
|
|
unit: 'hour'
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('when rendering several years', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2005-07-04', '2017-01-20'],
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
bounds: 'ticks',
|
|
position: 'bottom'
|
|
}],
|
|
}
|
|
}
|
|
}, {canvas: {width: 800, height: 200}});
|
|
|
|
this.scale = this.chart.scales.xScale0;
|
|
});
|
|
|
|
it('should be bounded by nearest step\'s year start and end', function() {
|
|
var scale = this.scale;
|
|
var ticks = scale.getTicks();
|
|
var step = ticks[1].value - ticks[0].value;
|
|
var stepsAmount = Math.floor((scale.max - scale.min) / step);
|
|
|
|
expect(scale.getValueForPixel(scale.left)).toBeCloseToTime({
|
|
value: moment(scale.min).startOf('year'),
|
|
unit: 'hour',
|
|
});
|
|
expect(scale.getValueForPixel(scale.right)).toBeCloseToTime({
|
|
value: moment(scale.min + step * stepsAmount).endOf('year'),
|
|
unit: 'hour',
|
|
});
|
|
});
|
|
|
|
it('should build the correct ticks', function() {
|
|
expect(getTicksLabels(this.scale)).toEqual(['2005', '2006', '2007', '2008', '2009', '2010', '2011', '2012', '2013', '2014', '2015', '2016', '2017', '2018']);
|
|
});
|
|
|
|
it('should have ticks with accurate labels', function() {
|
|
var scale = this.scale;
|
|
var ticks = scale.getTicks();
|
|
// pixelsPerTick is an aproximation which assumes same number of milliseconds per year (not true)
|
|
// we use a threshold of 1 day so that we still match these values
|
|
var pixelsPerTick = scale.width / (ticks.length - 1);
|
|
|
|
for (var i = 0; i < ticks.length - 1; i++) {
|
|
var offset = pixelsPerTick * i;
|
|
expect(scale.getValueForPixel(scale.left + offset)).toBeCloseToTime({
|
|
value: moment(ticks[i].label + '-01-01'),
|
|
unit: 'day',
|
|
threshold: 1,
|
|
});
|
|
}
|
|
});
|
|
});
|
|
|
|
it('should get the correct label for a data value', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: [null, 10, 3]
|
|
}],
|
|
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
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
position: 'bottom'
|
|
}],
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getLabelForIndex(0, 0)).toBeTruthy();
|
|
expect(xScale.getLabelForIndex(0, 0)).toBe('2015-01-01T20:00:00');
|
|
expect(xScale.getLabelForIndex(6, 0)).toBe('2015-01-10T12:00');
|
|
});
|
|
|
|
describe('when ticks.callback is specified', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: [0, 0]
|
|
}],
|
|
labels: ['2015-01-01T20:00:00', '2015-01-01T20:01:00']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
time: {
|
|
displayFormats: {
|
|
second: 'h:mm:ss'
|
|
}
|
|
},
|
|
ticks: {
|
|
callback: function(value) {
|
|
return '<' + value + '>';
|
|
}
|
|
}
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
this.scale = this.chart.scales.xScale0;
|
|
});
|
|
|
|
it('should get the correct labels for ticks', function() {
|
|
var scale = this.scale;
|
|
|
|
expect(scale.ticks.length).toEqual(61);
|
|
expect(scale.ticks[0]).toEqual('<8:00:00>');
|
|
expect(scale.ticks[scale.ticks.length - 1]).toEqual('<8:01:00>');
|
|
});
|
|
|
|
it('should update ticks.callback correctly', function() {
|
|
var chart = this.chart;
|
|
var scale = this.scale;
|
|
|
|
chart.options.scales.xAxes[0].ticks.callback = function(value) {
|
|
return '{' + value + '}';
|
|
};
|
|
chart.update();
|
|
expect(scale.ticks.length).toEqual(61);
|
|
expect(scale.ticks[0]).toEqual('{8:00:00}');
|
|
expect(scale.ticks[scale.ticks.length - 1]).toEqual('{8:01:00}');
|
|
});
|
|
});
|
|
|
|
describe('when ticks.major.callback and ticks.minor.callback are specified', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: [0, 0]
|
|
}],
|
|
labels: ['2015-01-01T20:00:00', '2015-01-01T20:01:00']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
ticks: {
|
|
callback: function(value) {
|
|
return '<' + value + '>';
|
|
},
|
|
major: {
|
|
enabled: true,
|
|
callback: function(value) {
|
|
return '[[' + value + ']]';
|
|
}
|
|
},
|
|
minor: {
|
|
callback: function(value) {
|
|
return '(' + value + ')';
|
|
}
|
|
}
|
|
}
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
this.scale = this.chart.scales.xScale0;
|
|
});
|
|
|
|
it('should get the correct labels for major and minor ticks', function() {
|
|
var scale = this.scale;
|
|
|
|
expect(scale.ticks.length).toEqual(61);
|
|
expect(scale.ticks[0]).toEqual('[[8:00 pm]]');
|
|
expect(scale.ticks[Math.floor(scale.ticks.length / 2)]).toEqual('(8:00:30 pm)');
|
|
expect(scale.ticks[scale.ticks.length - 1]).toEqual('[[8:01 pm]]');
|
|
});
|
|
|
|
it('should only use ticks.minor callback if ticks.major.enabled is false', function() {
|
|
var chart = this.chart;
|
|
var scale = this.scale;
|
|
|
|
chart.options.scales.xAxes[0].ticks.major.enabled = false;
|
|
chart.update();
|
|
expect(scale.ticks.length).toEqual(61);
|
|
expect(scale.ticks[0]).toEqual('(8:00:00 pm)');
|
|
expect(scale.ticks[scale.ticks.length - 1]).toEqual('(8:01:00 pm)');
|
|
});
|
|
|
|
it('should use ticks.callback if ticks.major.callback is omitted', function() {
|
|
var chart = this.chart;
|
|
var scale = this.scale;
|
|
|
|
chart.options.scales.xAxes[0].ticks.major.callback = undefined;
|
|
chart.update();
|
|
expect(scale.ticks.length).toEqual(61);
|
|
expect(scale.ticks[0]).toEqual('<8:00 pm>');
|
|
expect(scale.ticks[scale.ticks.length - 1]).toEqual('<8:01 pm>');
|
|
});
|
|
|
|
it('should use ticks.callback if ticks.minor.callback is omitted', function() {
|
|
var chart = this.chart;
|
|
var scale = this.scale;
|
|
|
|
chart.options.scales.xAxes[0].ticks.minor.callback = undefined;
|
|
chart.update();
|
|
expect(scale.ticks.length).toEqual(61);
|
|
expect(scale.ticks[0]).toEqual('[[8:00 pm]]');
|
|
expect(scale.ticks[Math.floor(scale.ticks.length / 2)]).toEqual('<8:00:30 pm>');
|
|
expect(scale.ticks[scale.ticks.length - 1]).toEqual('[[8:01 pm]]');
|
|
});
|
|
});
|
|
|
|
it('should get the correct label when time is specified as a string', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: [{t: '2015-01-01T20:00:00', y: 10}, {t: '2015-01-02T21:00:00', y: 3}]
|
|
}],
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
position: 'bottom'
|
|
}],
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
expect(xScale.getLabelForIndex(0, 0)).toBeTruthy();
|
|
expect(xScale.getLabelForIndex(0, 0)).toBe('2015-01-01T20:00:00');
|
|
});
|
|
|
|
it('should get the correct label for a timestamp', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: [
|
|
{t: +new Date('2018-01-08 05:14:23.234'), y: 10},
|
|
{t: +new Date('2018-01-09 06:17:43.426'), y: 3}
|
|
]
|
|
}],
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
position: 'bottom'
|
|
}],
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
var label = xScale.getLabelForIndex(0, 0);
|
|
expect(label).toEqual('Jan 8, 2018, 5:14:23 am');
|
|
});
|
|
|
|
it('should get the correct pixel for only one data in the dataset', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2016-05-27'],
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: [5]
|
|
}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
display: true,
|
|
type: 'time'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.xScale0;
|
|
var pixel = xScale.getPixelForValue('', 0, 0);
|
|
|
|
expect(xScale.getValueForPixel(pixel).valueOf()).toEqual(moment(chart.data.labels[0]).valueOf());
|
|
});
|
|
|
|
it('does not create a negative width chart when hidden', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
data: []
|
|
}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
type: 'time',
|
|
ticks: {
|
|
min: moment().subtract(1, 'months'),
|
|
max: moment(),
|
|
}
|
|
}],
|
|
},
|
|
responsive: true,
|
|
},
|
|
}, {
|
|
wrapper: {
|
|
style: 'display: none',
|
|
},
|
|
});
|
|
expect(chart.scales['y-axis-0'].width).toEqual(0);
|
|
expect(chart.scales['y-axis-0'].maxWidth).toEqual(0);
|
|
expect(chart.width).toEqual(0);
|
|
});
|
|
|
|
describe('when ticks.source', function() {
|
|
describe('is "labels"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
ticks: {
|
|
source: 'labels'
|
|
}
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should generate ticks from "data.labels"', function() {
|
|
var scale = this.chart.scales.x;
|
|
|
|
expect(scale.min).toEqual(+moment('2017', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2042', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2017', '2019', '2020', '2025', '2042']);
|
|
});
|
|
it ('should not add ticks for min and max if they extend the labels range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2051';
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment('2012', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2051', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2017', '2019', '2020', '2025', '2042']);
|
|
});
|
|
it ('should not duplicate ticks if min and max are the labels limits', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2017';
|
|
options.ticks.max = '2042';
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment('2017', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2042', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2017', '2019', '2020', '2025', '2042']);
|
|
});
|
|
it ('should correctly handle empty `data.labels` using "day" if `time.unit` is undefined`', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
|
|
chart.data.labels = [];
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment().startOf('day'));
|
|
expect(scale.max).toEqual(+moment().endOf('day') + 1);
|
|
expect(getTicksLabels(scale)).toEqual([]);
|
|
});
|
|
it ('should correctly handle empty `data.labels` using `time.unit`', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.time.unit = 'year';
|
|
chart.data.labels = [];
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment().startOf('year'));
|
|
expect(scale.max).toEqual(+moment().endOf('year') + 1);
|
|
expect(getTicksLabels(scale)).toEqual([]);
|
|
});
|
|
});
|
|
|
|
describe('is "data"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [
|
|
{data: [0, 1, 2, 3, 4, 5]},
|
|
{data: [
|
|
{t: '2018', y: 6},
|
|
{t: '2020', y: 7},
|
|
{t: '2043', y: 8}
|
|
]}
|
|
]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
ticks: {
|
|
source: 'data'
|
|
}
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should generate ticks from "datasets.data"', function() {
|
|
var scale = this.chart.scales.x;
|
|
|
|
expect(scale.min).toEqual(+moment('2017', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2043', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2017', '2018', '2019', '2020', '2025', '2042', '2043']);
|
|
});
|
|
it ('should not add ticks for min and max if they extend the labels range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2051';
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment('2012', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2051', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2017', '2018', '2019', '2020', '2025', '2042', '2043']);
|
|
});
|
|
it ('should not duplicate ticks if min and max are the labels limits', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2017';
|
|
options.ticks.max = '2043';
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment('2017', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2043', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2017', '2018', '2019', '2020', '2025', '2042', '2043']);
|
|
});
|
|
it ('should correctly handle empty `data.labels` using "day" if `time.unit` is undefined`', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
|
|
chart.data.labels = [];
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment('2018', 'YYYY'));
|
|
expect(scale.max).toEqual(+moment('2043', 'YYYY'));
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'2018', '2020', '2043']);
|
|
});
|
|
it ('should correctly handle empty `data.labels` and hidden datasets using `time.unit`', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.time.unit = 'year';
|
|
chart.data.labels = [];
|
|
var meta = chart.getDatasetMeta(1);
|
|
meta.hidden = true;
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment().startOf('year'));
|
|
expect(scale.max).toEqual(+moment().endOf('year') + 1);
|
|
expect(getTicksLabels(scale)).toEqual([]);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('when distribution', function() {
|
|
describe('is "series"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
distribution: 'series',
|
|
ticks: {
|
|
source: 'labels'
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should space data out with the same gap, whatever their time values', function() {
|
|
var scale = this.chart.scales.x;
|
|
var start = scale.left;
|
|
var slice = scale.width / 4;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start);
|
|
expect(scale.getPixelForValue('2019')).toBeCloseToPixel(start + slice);
|
|
expect(scale.getPixelForValue('2020')).toBeCloseToPixel(start + slice * 2);
|
|
expect(scale.getPixelForValue('2025')).toBeCloseToPixel(start + slice * 3);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * 4);
|
|
});
|
|
it ('should add a step before if scale.min is before the first data', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / 5;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * 5);
|
|
});
|
|
it ('should add a step after if scale.max is after the last data', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.max = '2050';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / 5;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * 4);
|
|
});
|
|
it ('should add steps before and after if scale.min/max are outside the data range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2050';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / 6;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * 5);
|
|
});
|
|
});
|
|
describe('is "linear"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
distribution: 'linear',
|
|
ticks: {
|
|
source: 'labels'
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should space data out with a gap relative to their time values', function() {
|
|
var scale = this.chart.scales.x;
|
|
var start = scale.left;
|
|
var slice = scale.width / (2042 - 2017);
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start);
|
|
expect(scale.getPixelForValue('2019')).toBeCloseToPixel(start + slice * (2019 - 2017));
|
|
expect(scale.getPixelForValue('2020')).toBeCloseToPixel(start + slice * (2020 - 2017));
|
|
expect(scale.getPixelForValue('2025')).toBeCloseToPixel(start + slice * (2025 - 2017));
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * (2042 - 2017));
|
|
});
|
|
it ('should take in account scale min and max if outside the ticks range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2050';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / (2050 - 2012);
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * (2017 - 2012));
|
|
expect(scale.getPixelForValue('2019')).toBeCloseToPixel(start + slice * (2019 - 2012));
|
|
expect(scale.getPixelForValue('2020')).toBeCloseToPixel(start + slice * (2020 - 2012));
|
|
expect(scale.getPixelForValue('2025')).toBeCloseToPixel(start + slice * (2025 - 2012));
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * (2042 - 2012));
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('when bounds', function() {
|
|
describe('is "data"', function() {
|
|
it ('should preserve the data range', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['02/20 08:00', '02/21 09:00', '02/22 10:00', '02/23 11:00'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
bounds: 'data',
|
|
time: {
|
|
parser: 'MM/DD HH:mm',
|
|
unit: 'day'
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var scale = chart.scales.x;
|
|
|
|
expect(scale.min).toEqual(+moment('02/20 08:00', 'MM/DD HH:mm'));
|
|
expect(scale.max).toEqual(+moment('02/23 11:00', 'MM/DD HH:mm'));
|
|
expect(scale.getPixelForValue('02/20 08:00')).toBeCloseToPixel(scale.left);
|
|
expect(scale.getPixelForValue('02/23 11:00')).toBeCloseToPixel(scale.left + scale.width);
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'Feb 21', 'Feb 22', 'Feb 23']);
|
|
});
|
|
});
|
|
|
|
describe('is "labels"', function() {
|
|
it('should preserve the label range', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['02/20 08:00', '02/21 09:00', '02/22 10:00', '02/23 11:00'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
bounds: 'ticks',
|
|
time: {
|
|
parser: 'MM/DD HH:mm',
|
|
unit: 'day'
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
var scale = chart.scales.x;
|
|
var ticks = scale.getTicks();
|
|
|
|
expect(scale.min).toEqual(ticks[0].value);
|
|
expect(scale.max).toEqual(ticks[ticks.length - 1].value);
|
|
expect(scale.getPixelForValue('02/20 08:00')).toBeCloseToPixel(60);
|
|
expect(scale.getPixelForValue('02/23 11:00')).toBeCloseToPixel(426);
|
|
expect(getTicksLabels(scale)).toEqual([
|
|
'Feb 20', 'Feb 21', 'Feb 22', 'Feb 23', 'Feb 24']);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('when ticks.min and/or ticks.max are defined', function() {
|
|
['auto', 'data', 'labels'].forEach(function(source) {
|
|
['data', 'ticks'].forEach(function(bounds) {
|
|
describe('and ticks.source is "' + source + '" and bounds "' + bounds + '"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['02/20 08:00', '02/21 09:00', '02/22 10:00', '02/23 11:00'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
bounds: bounds,
|
|
time: {
|
|
parser: 'MM/DD HH:mm',
|
|
unit: 'day'
|
|
},
|
|
ticks: {
|
|
source: source
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should expand scale to the min/max range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
var min = '02/19 07:00';
|
|
var max = '02/24 08:00';
|
|
|
|
options.ticks.min = min;
|
|
options.ticks.max = max;
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment(min, 'MM/DD HH:mm'));
|
|
expect(scale.max).toEqual(+moment(max, 'MM/DD HH:mm'));
|
|
expect(scale.getPixelForValue(min)).toBeCloseToPixel(scale.left);
|
|
expect(scale.getPixelForValue(max)).toBeCloseToPixel(scale.left + scale.width);
|
|
scale.getTicks().forEach(function(tick) {
|
|
expect(tick.value >= +moment(min, 'MM/DD HH:mm')).toBeTruthy();
|
|
expect(tick.value <= +moment(max, 'MM/DD HH:mm')).toBeTruthy();
|
|
});
|
|
});
|
|
it ('should shrink scale to the min/max range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
var min = '02/21 07:00';
|
|
var max = '02/22 20:00';
|
|
|
|
options.ticks.min = min;
|
|
options.ticks.max = max;
|
|
chart.update();
|
|
|
|
expect(scale.min).toEqual(+moment(min, 'MM/DD HH:mm'));
|
|
expect(scale.max).toEqual(+moment(max, 'MM/DD HH:mm'));
|
|
expect(scale.getPixelForValue(min)).toBeCloseToPixel(scale.left);
|
|
expect(scale.getPixelForValue(max)).toBeCloseToPixel(scale.left + scale.width);
|
|
scale.getTicks().forEach(function(tick) {
|
|
expect(tick.value >= +moment(min, 'MM/DD HH:mm')).toBeTruthy();
|
|
expect(tick.value <= +moment(max, 'MM/DD HH:mm')).toBeTruthy();
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
['auto', 'data', 'labels'].forEach(function(source) {
|
|
['series', 'linear'].forEach(function(distribution) {
|
|
describe('when ticks.source is "' + source + '" and distribution is "' + distribution + '"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
ticks: {
|
|
source: source
|
|
},
|
|
distribution: distribution
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should not add offset from the edges', function() {
|
|
var scale = this.chart.scales.x;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(scale.left);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(scale.left + scale.width);
|
|
});
|
|
|
|
it ('should add offset from the edges if offset is true', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.offset = true;
|
|
chart.update();
|
|
|
|
var numTicks = scale.ticks.length;
|
|
var firstTickInterval = scale.getPixelForTick(1) - scale.getPixelForTick(0);
|
|
var lastTickInterval = scale.getPixelForTick(numTicks - 1) - scale.getPixelForTick(numTicks - 2);
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(scale.left + firstTickInterval / 2);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(scale.left + scale.width - lastTickInterval / 2);
|
|
});
|
|
|
|
it ('should not add offset if min and max extend the labels range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2051';
|
|
chart.update();
|
|
|
|
expect(scale.getPixelForValue('2012')).toBeCloseToPixel(scale.left);
|
|
expect(scale.getPixelForValue('2051')).toBeCloseToPixel(scale.left + scale.width);
|
|
});
|
|
|
|
it ('should add offset if min and max extend the labels range and offset is true', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2051';
|
|
options.offset = true;
|
|
chart.update();
|
|
|
|
var numTicks = scale.ticks.length;
|
|
var firstTickInterval = scale.getPixelForTick(1) - scale.getPixelForTick(0);
|
|
var lastTickInterval = scale.getPixelForTick(numTicks - 1) - scale.getPixelForTick(numTicks - 2);
|
|
expect(scale.getPixelForValue('2012')).toBeCloseToPixel(scale.left + firstTickInterval / 2);
|
|
expect(scale.getPixelForValue('2051')).toBeCloseToPixel(scale.left + scale.width - lastTickInterval / 2);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('when ticks.reverse', function() {
|
|
describe('is "true"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY',
|
|
},
|
|
ticks: {
|
|
source: 'labels',
|
|
reverse: true
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should reverse the labels', function() {
|
|
var scale = this.chart.scales.x;
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(scale.left + scale.width);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(scale.left);
|
|
});
|
|
|
|
it ('should reverse the values for pixels', function() {
|
|
var scale = this.chart.chart.scales.x;
|
|
expect(scale.getValueForPixel(scale.left)).toBeCloseToTime({
|
|
value: moment('2042-01-01T00:00:00'),
|
|
unit: 'hour',
|
|
});
|
|
expect(scale.getValueForPixel(scale.left + scale.width)).toBeCloseToTime({
|
|
value: moment('2017-01-01T00:00:00'),
|
|
unit: 'hour',
|
|
});
|
|
});
|
|
|
|
it ('should reverse the bars and add offsets if offset is true', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.offset = true;
|
|
chart.update();
|
|
|
|
var numTicks = scale.ticks.length;
|
|
var firstTickInterval = scale.getPixelForTick(1) - scale.getPixelForTick(0);
|
|
var lastTickInterval = scale.getPixelForTick(numTicks - 1) - scale.getPixelForTick(numTicks - 2);
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(scale.left + scale.width - lastTickInterval / 2);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(scale.left + firstTickInterval / 2);
|
|
});
|
|
|
|
it ('should reverse the values for pixels if offset is true', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.offset = true;
|
|
chart.update();
|
|
|
|
var numTicks = scale.ticks.length;
|
|
var firstTickInterval = scale.getPixelForTick(1) - scale.getPixelForTick(0);
|
|
var lastTickInterval = scale.getPixelForTick(numTicks - 1) - scale.getPixelForTick(numTicks - 2);
|
|
|
|
expect(scale.getValueForPixel(scale.left + lastTickInterval / 2)).toBeCloseToTime({
|
|
value: moment('2042-01-01T00:00:00'),
|
|
unit: 'hour',
|
|
});
|
|
expect(scale.getValueForPixel(scale.left + scale.width - firstTickInterval / 2)).toBeCloseToTime({
|
|
value: moment('2017-01-01T00:00:00'),
|
|
unit: 'hour',
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('when ticks.reverse is "true" and distribution', function() {
|
|
describe('is "series"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
distribution: 'series',
|
|
ticks: {
|
|
source: 'labels',
|
|
reverse: true
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should reverse the labels and space data out with the same gap, whatever their time values', function() {
|
|
var scale = this.chart.scales.x;
|
|
var start = scale.left;
|
|
var slice = scale.width / 4;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * 4);
|
|
expect(scale.getPixelForValue('2019')).toBeCloseToPixel(start + slice * 3);
|
|
expect(scale.getPixelForValue('2020')).toBeCloseToPixel(start + slice * 2);
|
|
expect(scale.getPixelForValue('2025')).toBeCloseToPixel(start + slice);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start);
|
|
});
|
|
|
|
it ('should reverse the labels and should add a step before if scale.min is before the first data', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / 5;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * 4);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start);
|
|
});
|
|
|
|
it ('should reverse the labels and should add a step after if scale.max is after the last data', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.max = '2050';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / 5;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * 5);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice);
|
|
});
|
|
|
|
it ('should reverse the labels and should add steps before and after if scale.min/max are outside the data range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2050';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / 6;
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * 5);
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice);
|
|
});
|
|
});
|
|
describe('is "linear"', function() {
|
|
beforeEach(function() {
|
|
this.chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['2017', '2019', '2020', '2025', '2042'],
|
|
datasets: [{data: [0, 1, 2, 3, 4, 5]}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
parser: 'YYYY'
|
|
},
|
|
distribution: 'linear',
|
|
ticks: {
|
|
source: 'labels',
|
|
reverse: true
|
|
}
|
|
}],
|
|
yAxes: [{
|
|
display: false
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
});
|
|
|
|
it ('should reverse the labels and should space data out with a gap relative to their time values', function() {
|
|
var scale = this.chart.scales.x;
|
|
var start = scale.left;
|
|
var slice = scale.width / (2042 - 2017);
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * (2042 - 2017));
|
|
expect(scale.getPixelForValue('2019')).toBeCloseToPixel(start + slice * (2042 - 2019));
|
|
expect(scale.getPixelForValue('2020')).toBeCloseToPixel(start + slice * (2042 - 2020));
|
|
expect(scale.getPixelForValue('2025')).toBeCloseToPixel(start + slice * (2042 - 2025));
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start);
|
|
});
|
|
|
|
it ('should reverse the labels and should take in account scale min and max if outside the ticks range', function() {
|
|
var chart = this.chart;
|
|
var scale = chart.scales.x;
|
|
var options = chart.options.scales.xAxes[0];
|
|
|
|
options.ticks.min = '2012';
|
|
options.ticks.max = '2050';
|
|
chart.update();
|
|
|
|
var start = scale.left;
|
|
var slice = scale.width / (2050 - 2012);
|
|
|
|
expect(scale.getPixelForValue('2017')).toBeCloseToPixel(start + slice * (2050 - 2017));
|
|
expect(scale.getPixelForValue('2019')).toBeCloseToPixel(start + slice * (2050 - 2019));
|
|
expect(scale.getPixelForValue('2020')).toBeCloseToPixel(start + slice * (2050 - 2020));
|
|
expect(scale.getPixelForValue('2025')).toBeCloseToPixel(start + slice * (2050 - 2025));
|
|
expect(scale.getPixelForValue('2042')).toBeCloseToPixel(start + slice * (2050 - 2042));
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('labels', function() {
|
|
it('should read labels from scale / xLabels / yLabels', function() {
|
|
var timeOpts = {
|
|
parser: 'YYYY',
|
|
unit: 'year',
|
|
displayFormats: {
|
|
year: 'YYYY'
|
|
}
|
|
};
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['1975', '1976', '1977'],
|
|
xLabels: ['1985', '1986', '1987'],
|
|
yLabels: ['1995', '1996', '1997']
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
labels: ['2015', '2016', '2017'],
|
|
time: timeOpts
|
|
},
|
|
{
|
|
id: 'x2',
|
|
type: 'time',
|
|
time: timeOpts
|
|
}],
|
|
yAxes: [{
|
|
id: 'y',
|
|
type: 'time',
|
|
time: timeOpts
|
|
},
|
|
{
|
|
id: 'y2',
|
|
type: 'time',
|
|
labels: ['2005', '2006', '2007'],
|
|
time: timeOpts
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(getTicksLabels(chart.scales.x)).toEqual(['2015', '2016', '2017']);
|
|
expect(getTicksLabels(chart.scales.x2)).toEqual(['1985', '1986', '1987']);
|
|
expect(getTicksLabels(chart.scales.y)).toEqual(['1995', '1996', '1997']);
|
|
expect(getTicksLabels(chart.scales.y2)).toEqual(['2005', '2006', '2007']);
|
|
});
|
|
});
|
|
|
|
it('should handle autoskip with major and minor ticks', function() {
|
|
var date = moment('Jan 01 1990', 'MMM DD YYYY');
|
|
var data = [];
|
|
for (var i = 0; i < 60; i++) {
|
|
data.push({x: date.valueOf(), y: Math.random()});
|
|
date = date.clone().add(1, 'month');
|
|
}
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'xScale0',
|
|
data: data
|
|
}],
|
|
},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'xScale0',
|
|
type: 'time',
|
|
ticks: {
|
|
major: {
|
|
enabled: true
|
|
},
|
|
source: 'data',
|
|
autoSkip: true
|
|
}
|
|
}],
|
|
}
|
|
}
|
|
});
|
|
|
|
var scale = chart.scales.xScale0;
|
|
|
|
var labels = scale._ticksToDraw.map(function(t) {
|
|
return t.label;
|
|
});
|
|
expect(labels).toEqual([
|
|
'1990', 'Apr 1990', 'Jul 1990', 'Oct 1990',
|
|
'1991', 'Apr 1991', 'Jul 1991', 'Oct 1991',
|
|
'1992', 'Apr 1992', 'Jul 1992', 'Oct 1992',
|
|
'1993', 'Apr 1993', 'Jul 1993', 'Oct 1993',
|
|
'1994', 'Apr 1994', 'Jul 1994', 'Oct 1994']);
|
|
});
|
|
|
|
describe('Deprecations', function() {
|
|
describe('options.time.displayFormats', function() {
|
|
it('should generate defaults from adapter presets', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time'
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
// NOTE: built-in adapter uses moment
|
|
var expected = {
|
|
datetime: 'MMM D, YYYY, h:mm:ss a',
|
|
millisecond: 'h:mm:ss.SSS a',
|
|
second: 'h:mm:ss a',
|
|
minute: 'h:mm a',
|
|
hour: 'hA',
|
|
day: 'MMM D',
|
|
week: 'll',
|
|
month: 'MMM YYYY',
|
|
quarter: '[Q]Q - YYYY',
|
|
year: 'YYYY'
|
|
};
|
|
|
|
expect(chart.scales.x.options.time.displayFormats).toEqual(expected);
|
|
expect(chart.options.scales.xAxes[0].time.displayFormats).toEqual(expected);
|
|
});
|
|
|
|
it('should merge user formats with adapter presets', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {},
|
|
options: {
|
|
scales: {
|
|
xAxes: [{
|
|
id: 'x',
|
|
type: 'time',
|
|
time: {
|
|
displayFormats: {
|
|
millisecond: 'foo',
|
|
hour: 'bar',
|
|
month: 'bla'
|
|
}
|
|
}
|
|
}]
|
|
}
|
|
}
|
|
});
|
|
|
|
// NOTE: built-in adapter uses moment
|
|
var expected = {
|
|
datetime: 'MMM D, YYYY, h:mm:ss a',
|
|
millisecond: 'foo',
|
|
second: 'h:mm:ss a',
|
|
minute: 'h:mm a',
|
|
hour: 'bar',
|
|
day: 'MMM D',
|
|
week: 'll',
|
|
month: 'bla',
|
|
quarter: '[Q]Q - YYYY',
|
|
year: 'YYYY'
|
|
};
|
|
|
|
expect(chart.scales.x.options.time.displayFormats).toEqual(expected);
|
|
expect(chart.options.scales.xAxes[0].time.displayFormats).toEqual(expected);
|
|
});
|
|
});
|
|
});
|
|
});
|