mirror of
https://github.com/chartjs/Chart.js.git
synced 2024-10-06 04:09:08 +02:00
2340 lines
61 KiB
JavaScript
2340 lines
61 KiB
JavaScript
describe('Chart', function() {
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const overrides = Chart.overrides;
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// https://github.com/chartjs/Chart.js/issues/2481
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// See global.deprecations.tests.js for backward compatibility
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it('should be defined and prototype of chart instances', function() {
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var chart = acquireChart({});
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expect(Chart).toBeDefined();
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expect(Chart instanceof Object).toBeTruthy();
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expect(chart.constructor).toBe(Chart);
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expect(chart instanceof Chart).toBeTruthy();
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});
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it('should throw an error if the canvas is already in use', function() {
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var config = {
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type: 'line',
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data: {
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datasets: [{
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data: [1, 2, 3, 4]
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}],
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labels: ['A', 'B', 'C', 'D']
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}
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};
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var chart = acquireChart(config);
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var canvas = chart.canvas;
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function createChart() {
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return new Chart(canvas, config);
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}
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expect(createChart).toThrow(new Error(
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'Canvas is already in use. ' +
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'Chart with ID \'' + chart.id + '\'' +
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' must be destroyed before the canvas with ID \'' + chart.canvas.id + '\' can be reused.'
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));
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chart.destroy();
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expect(createChart).not.toThrow();
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});
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describe('config initialization', function() {
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it('should create missing config.data properties', function() {
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var chart = acquireChart({});
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var data = chart.data;
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expect(data instanceof Object).toBeTruthy();
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expect(data.labels instanceof Array).toBeTruthy();
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expect(data.labels.length).toBe(0);
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expect(data.datasets instanceof Array).toBeTruthy();
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expect(data.datasets.length).toBe(0);
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});
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it('should not alter config.data references', function() {
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var ds0 = {data: [10, 11, 12, 13]};
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var ds1 = {data: [20, 21, 22, 23]};
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var datasets = [ds0, ds1];
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var labels = [0, 1, 2, 3];
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var data = {labels: labels, datasets: datasets};
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var chart = acquireChart({
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type: 'line',
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data: data
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});
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expect(chart.data).toBe(data);
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expect(chart.data.labels).toBe(labels);
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expect(chart.data.datasets).toBe(datasets);
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expect(chart.data.datasets[0]).toBe(ds0);
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expect(chart.data.datasets[1]).toBe(ds1);
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expect(chart.data.datasets[0].data).toBe(ds0.data);
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expect(chart.data.datasets[1].data).toBe(ds1.data);
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});
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it('should define chart.data as an alias for config.data', function() {
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var config = {data: {labels: [], datasets: []}};
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var chart = acquireChart(config);
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expect(chart.data).toBe(config.data);
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chart.data = {labels: [1, 2, 3], datasets: [{data: [4, 5, 6]}]};
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expect(config.data).toBe(chart.data);
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expect(config.data.labels).toEqual([1, 2, 3]);
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expect(config.data.datasets[0].data).toEqual([4, 5, 6]);
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config.data = {labels: [7, 8, 9], datasets: [{data: [10, 11, 12]}]};
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expect(chart.data).toBe(config.data);
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expect(chart.data.labels).toEqual([7, 8, 9]);
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expect(chart.data.datasets[0].data).toEqual([10, 11, 12]);
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});
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it('should initialize config with default interaction options', function() {
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var callback = function() {};
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var defaults = Chart.defaults;
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defaults.onHover = callback;
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overrides.line.interaction = {
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mode: 'test'
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};
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var chart = acquireChart({
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type: 'line'
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});
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var options = chart.options;
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expect(options.font.size).toBe(defaults.font.size);
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expect(options.onHover).toBe(callback);
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expect(options.hover.mode).toBe('test');
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defaults.onHover = null;
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delete overrides.line.interaction;
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});
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it('should initialize config with default hover options', function() {
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var callback = function() {};
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var defaults = Chart.defaults;
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defaults.onHover = callback;
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overrides.line.hover = {
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mode: 'test'
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};
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var chart = acquireChart({
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type: 'line'
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});
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var options = chart.options;
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expect(options.font.size).toBe(defaults.font.size);
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expect(options.onHover).toBe(callback);
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expect(options.hover.mode).toBe('test');
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defaults.onHover = null;
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delete overrides.line.hover;
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});
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it('should override default options', function() {
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var callback = function() {};
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var defaults = Chart.defaults;
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var defaultSpanGaps = defaults.datasets.line.spanGaps;
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defaults.onHover = callback;
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overrides.line.hover = {
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mode: 'x-axis'
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};
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defaults.datasets.line.spanGaps = true;
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var chart = acquireChart({
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type: 'line',
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options: {
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spanGaps: false,
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hover: {
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mode: 'dataset',
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},
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plugins: {
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title: {
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position: 'bottom'
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}
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}
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}
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});
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var options = chart.options;
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expect(options.spanGaps).toBe(false);
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expect(options.hover.mode).toBe('dataset');
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expect(options.plugins.title.position).toBe('bottom');
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defaults.onHover = null;
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delete overrides.line.hover;
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defaults.datasets.line.spanGaps = defaultSpanGaps;
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});
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it('should initialize config with default dataset options', function() {
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var defaults = Chart.defaults.datasets.pie;
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var chart = acquireChart({
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type: 'pie'
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});
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var options = chart.options;
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expect(options.circumference).toBe(defaults.circumference);
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});
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it('should override axis positions that are incorrect', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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scales: {
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x: {
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position: 'left',
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},
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y: {
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position: 'bottom'
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}
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}
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}
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});
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var scaleOptions = chart.options.scales;
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expect(scaleOptions.x.position).toBe('bottom');
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expect(scaleOptions.y.position).toBe('left');
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});
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it('should throw an error if the chart type is incorrect', function() {
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function createChart() {
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acquireChart({
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type: 'area',
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data: {
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datasets: [{
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label: 'first',
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data: [10, 20]
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}],
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labels: ['0', '1'],
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},
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options: {
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scales: {
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x: {
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type: 'linear',
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position: 'left',
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},
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y: {
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type: 'category',
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position: 'bottom'
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}
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}
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}
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});
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}
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expect(createChart).toThrow(new Error('"area" is not a registered controller.'));
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});
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it('should initialize the data object', function() {
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const chart = acquireChart({type: 'bar'});
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expect(chart.data).toEqual(jasmine.objectContaining({labels: [], datasets: []}));
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chart.data = {};
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expect(chart.data).toEqual(jasmine.objectContaining({labels: [], datasets: []}));
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chart.data = null;
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expect(chart.data).toEqual(jasmine.objectContaining({labels: [], datasets: []}));
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chart.data = undefined;
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expect(chart.data).toEqual(jasmine.objectContaining({labels: [], datasets: []}));
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});
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describe('should disable hover', function() {
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it('when options.hover=false', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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hover: false
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}
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});
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expect(chart.options.hover).toBeFalse();
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});
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it('when options.interaction=false and options.hover is not defined', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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interaction: false
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}
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});
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expect(chart.options.hover).toBeFalse();
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});
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it('when options.interaction=false and options.hover is defined', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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interaction: false,
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hover: {mode: 'nearest'}
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}
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});
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expect(chart.options.hover).toBeFalse();
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});
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});
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it('should activate element on hover', async function() {
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var chart = acquireChart({
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type: 'line',
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data: {
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labels: ['A', 'B', 'C', 'D'],
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datasets: [{
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data: [10, 20, 30, 100]
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}]
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}
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});
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var point = chart.getDatasetMeta(0).data[1];
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await jasmine.triggerMouseEvent(chart, 'mousemove', point);
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expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 1, element: point}]);
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});
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it('should handle changing the events at runtime', async function() {
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var chart = acquireChart({
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type: 'line',
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data: {
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labels: ['A', 'B', 'C', 'D'],
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datasets: [{
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data: [10, 20, 30, 100]
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}]
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},
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options: {
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events: ['click']
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}
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});
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var point1 = chart.getDatasetMeta(0).data[1];
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var point2 = chart.getDatasetMeta(0).data[2];
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await jasmine.triggerMouseEvent(chart, 'click', point1);
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expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 1, element: point1}]);
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chart.options.events = ['mousemove'];
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chart.update();
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await jasmine.triggerMouseEvent(chart, 'mousemove', point2);
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expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 2, element: point2}]);
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});
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it('should activate element on hover when minPadding pixels outside chart area', async function() {
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var chart = acquireChart({
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type: 'line',
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data: {
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labels: ['A', 'B', 'C', 'D'],
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datasets: [{
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data: [10, 20, 30, 100],
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hoverRadius: 0
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}],
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},
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options: {
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scales: {
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x: {display: false},
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y: {display: false}
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}
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}
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});
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var point = chart.getDatasetMeta(0).data[0];
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await jasmine.triggerMouseEvent(chart, 'mousemove', {x: 1, y: point.y});
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expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 0, element: point}]);
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});
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it('should not activate elements when hover is disabled', async function() {
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var chart = acquireChart({
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type: 'line',
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data: {
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labels: ['A', 'B', 'C', 'D'],
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datasets: [{
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data: [10, 20, 30, 100]
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}]
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},
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options: {
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hover: false
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}
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});
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var point = chart.getDatasetMeta(0).data[1];
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await jasmine.triggerMouseEvent(chart, 'mousemove', point);
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expect(chart.getActiveElements()).toEqual([]);
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});
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it('should not change the active elements when outside chartArea, except for mouseout', async function() {
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var chart = acquireChart({
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type: 'line',
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data: {
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labels: ['A', 'B', 'C', 'D'],
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datasets: [{
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data: [10, 20, 30, 100],
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hoverRadius: 0
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}],
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},
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options: {
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scales: {
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x: {display: false},
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y: {display: false}
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},
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layout: {
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padding: 5
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}
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}
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});
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var point = chart.getDatasetMeta(0).data[0];
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await jasmine.triggerMouseEvent(chart, 'mousemove', {x: point.x, y: point.y});
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expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 0, element: point}]);
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await jasmine.triggerMouseEvent(chart, 'mousemove', {x: 1, y: 1});
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expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 0, element: point}]);
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await jasmine.triggerMouseEvent(chart, 'mouseout', {x: 1, y: 1});
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expect(chart.tooltip.getActiveElements()).toEqual([]);
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});
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});
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describe('when merging scale options', function() {
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beforeEach(function() {
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Chart.helpers.merge(Chart.defaults.scale, {
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_jasmineCheckA: 'a0',
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_jasmineCheckB: 'b0',
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_jasmineCheckC: 'c0'
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});
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Chart.helpers.merge(Chart.defaults.scales.logarithmic, {
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_jasmineCheckB: 'b1',
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_jasmineCheckC: 'c1',
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});
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});
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afterEach(function() {
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delete Chart.defaults.scale._jasmineCheckA;
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delete Chart.defaults.scale._jasmineCheckB;
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delete Chart.defaults.scale._jasmineCheckC;
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delete Chart.defaults.scales.logarithmic._jasmineCheckB;
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delete Chart.defaults.scales.logarithmic._jasmineCheckC;
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});
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it('should default to "category" for x scales and "linear" for y scales', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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scales: {
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xFoo0: {},
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xFoo1: {},
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yBar0: {},
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yBar1: {},
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}
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}
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});
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expect(chart.scales.xFoo0.type).toBe('category');
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expect(chart.scales.xFoo1.type).toBe('category');
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expect(chart.scales.yBar0.type).toBe('linear');
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expect(chart.scales.yBar1.type).toBe('linear');
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});
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it('should correctly apply defaults on central scale', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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scales: {
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foo: {
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axis: 'x',
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type: 'logarithmic',
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_jasmineCheckC: 'c2',
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_jasmineCheckD: 'd2'
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}
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}
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}
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});
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// let's check a few values from the user options and defaults
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expect(chart.scales.foo.type).toBe('logarithmic');
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expect(chart.scales.foo.options).toEqual(chart.options.scales.foo);
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expect(chart.scales.foo.options).toEqual(
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jasmine.objectContaining({
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_jasmineCheckA: 'a0',
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_jasmineCheckB: 'b1',
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_jasmineCheckC: 'c2',
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_jasmineCheckD: 'd2'
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}));
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});
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it('should correctly apply defaults on xy scales', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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scales: {
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x: {
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type: 'logarithmic',
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_jasmineCheckC: 'c2',
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_jasmineCheckD: 'd2'
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},
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y: {
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type: 'time',
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_jasmineCheckC: 'c2',
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_jasmineCheckE: 'e2'
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}
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}
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}
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});
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expect(chart.scales.x.type).toBe('logarithmic');
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expect(chart.scales.x.options).toEqual(chart.options.scales.x);
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expect(chart.scales.x.options).toEqual(
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jasmine.objectContaining({
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_jasmineCheckA: 'a0',
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_jasmineCheckB: 'b1',
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_jasmineCheckC: 'c2',
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_jasmineCheckD: 'd2'
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}));
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expect(chart.scales.y.type).toBe('time');
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expect(chart.scales.y.options).toEqual(chart.options.scales.y);
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expect(chart.scales.y.options).toEqual(
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jasmine.objectContaining({
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_jasmineCheckA: 'a0',
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_jasmineCheckB: 'b0',
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_jasmineCheckC: 'c2',
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_jasmineCheckE: 'e2'
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}));
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});
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it('should not alter defaults when merging config', function() {
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var chart = acquireChart({
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type: 'line',
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options: {
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_jasmineCheck: 42,
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scales: {
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x: {
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type: 'linear',
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_jasmineCheck: 42,
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},
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y: {
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type: 'category',
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_jasmineCheck: 42,
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}
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}
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}
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});
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expect(chart.options._jasmineCheck).toBeDefined();
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expect(chart.scales.x.options._jasmineCheck).toBeDefined();
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expect(chart.scales.y.options._jasmineCheck).toBeDefined();
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expect(Chart.overrides.line._jasmineCheck).not.toBeDefined();
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expect(Chart.defaults._jasmineCheck).not.toBeDefined();
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expect(Chart.defaults.scales.linear._jasmineCheck).not.toBeDefined();
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expect(Chart.defaults.scales.category._jasmineCheck).not.toBeDefined();
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});
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it('should ignore proxy passed as scale options', function() {
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let failure = false;
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const chart = acquireChart({
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type: 'line',
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data: [],
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options: {
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scales: {
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x: {
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grid: {
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color: ctx => {
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if (!ctx.tick) {
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failure = 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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}
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});
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chart.options.scales = {
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x: chart.options.scales.x,
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y: {
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type: 'linear',
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position: 'right'
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}
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};
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chart.update();
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expect(failure).toEqual(false);
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});
|
|
|
|
it('should ignore array passed as scale options', function() {
|
|
const chart = acquireChart({
|
|
type: 'line',
|
|
data: [],
|
|
options: {
|
|
scales: {
|
|
xAxes: [{id: 'xAxes', type: 'category'}]
|
|
}
|
|
}
|
|
});
|
|
expect(chart.scales.xAxes).not.toBeDefined();
|
|
});
|
|
});
|
|
|
|
describe('Updating options', function() {
|
|
it('update should result to same set of options as construct', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: [],
|
|
options: {
|
|
animation: false,
|
|
locale: 'en-US',
|
|
responsive: false
|
|
}
|
|
});
|
|
const options = chart.options;
|
|
chart.options = {
|
|
animation: false,
|
|
locale: 'en-US',
|
|
responsive: false
|
|
};
|
|
chart.update();
|
|
expect(chart.options).toEqualOptions(options);
|
|
});
|
|
});
|
|
|
|
describe('config.options.responsive: true (maintainAspectRatio: false)', function() {
|
|
it('should fill parent width and height', function() {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: 'width: 150px; height: 245px'
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
});
|
|
|
|
it('should call onResize with correct arguments and context', function() {
|
|
let count = 0;
|
|
let correctThis = false;
|
|
let size = {
|
|
width: 0,
|
|
height: 0
|
|
};
|
|
acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false,
|
|
onResize(chart, newSize) {
|
|
count++;
|
|
correctThis = this === chart;
|
|
size.width = newSize.width;
|
|
size.height = newSize.height;
|
|
}
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: 'width: 150px; height: 245px'
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px'
|
|
}
|
|
});
|
|
|
|
expect(count).toEqual(1);
|
|
expect(correctThis).toBeTrue();
|
|
expect(size).toEqual({width: 300, height: 350});
|
|
});
|
|
|
|
|
|
it('should resize the canvas when parent width changes', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px; position: relative'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 350,
|
|
rw: 455, rh: 350,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 150, dh: 350,
|
|
rw: 150, rh: 350,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.width = '150px';
|
|
});
|
|
wrapper.style.width = '455px';
|
|
});
|
|
|
|
it('should restore the original size when parent became invisible', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px; position: relative'
|
|
}
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
|
|
var original = chart.resize;
|
|
chart.resize = function() {
|
|
fail('resize should not have been called');
|
|
};
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
wrapper.style.display = 'none';
|
|
|
|
setTimeout(function() {
|
|
expect(wrapper.clientWidth).toEqual(0);
|
|
expect(wrapper.clientHeight).toEqual(0);
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
|
|
chart.resize = original;
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.display = 'block';
|
|
}, 200);
|
|
});
|
|
});
|
|
|
|
it('should resize the canvas when parent is RTL and width changes', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px; position: relative; direction: rtl'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 350,
|
|
rw: 455, rh: 350,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 150, dh: 350,
|
|
rw: 150, rh: 350,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.width = '150px';
|
|
});
|
|
wrapper.style.width = '455px';
|
|
});
|
|
|
|
it('should resize the canvas when parent height changes', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px; position: relative'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 350,
|
|
rw: 300, rh: 350,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 455,
|
|
rw: 300, rh: 455,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 150,
|
|
rw: 300, rh: 150,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.height = '150px';
|
|
});
|
|
wrapper.style.height = '455px';
|
|
});
|
|
|
|
it('should not include parent padding when resizing the canvas', function(done) {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'padding: 50px; width: 320px; height: 350px; position: relative'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 350,
|
|
rw: 320, rh: 350,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 355,
|
|
rw: 455, rh: 355,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.height = '355px';
|
|
wrapper.style.width = '455px';
|
|
});
|
|
|
|
it('should resize the canvas when the canvas display style changes from "none" to "block"', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: 'display: none;'
|
|
},
|
|
wrapper: {
|
|
style: 'width: 320px; height: 350px'
|
|
}
|
|
});
|
|
|
|
var canvas = chart.canvas;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 350,
|
|
rw: 320, rh: 350,
|
|
});
|
|
|
|
done();
|
|
});
|
|
canvas.style.display = 'block';
|
|
});
|
|
|
|
it('should resize the canvas when the wrapper display style changes from "none" to "block"', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'display: none; width: 460px; height: 380px'
|
|
}
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 460, dh: 380,
|
|
rw: 460, rh: 380,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.display = 'block';
|
|
});
|
|
|
|
it('should resize the canvas when the wrapper has display style changes from "none" to "block"', function(done) {
|
|
// https://github.com/chartjs/Chart.js/issues/4659
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'display: none; max-width: 600px; max-height: 400px;'
|
|
}
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 600, dh: 300,
|
|
rw: 600, rh: 300,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.display = 'block';
|
|
});
|
|
|
|
// https://github.com/chartjs/Chart.js/issues/5485
|
|
it('should resize the canvas when the devicePixelRatio changes', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false,
|
|
devicePixelRatio: 1
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 400px; height: 200px; position: relative'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 400, dh: 200,
|
|
rw: 400, rh: 200,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 400, dh: 200,
|
|
rw: 800, rh: 400,
|
|
});
|
|
|
|
done();
|
|
});
|
|
chart.options.devicePixelRatio = 2;
|
|
chart.resize();
|
|
});
|
|
|
|
// https://github.com/chartjs/Chart.js/issues/3790
|
|
it('should resize the canvas if attached to the DOM after construction', function(done) {
|
|
var canvas = document.createElement('canvas');
|
|
var wrapper = document.createElement('div');
|
|
var body = window.document.body;
|
|
var chart = new Chart(canvas, {
|
|
type: 'line',
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 0, dh: 0,
|
|
rw: 0, rh: 0,
|
|
});
|
|
expect(chart.chartArea).toBeUndefined();
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 355,
|
|
rw: 455, rh: 355,
|
|
});
|
|
|
|
expect(chart.chartArea).not.toBeUndefined();
|
|
|
|
body.removeChild(wrapper);
|
|
chart.destroy();
|
|
done();
|
|
});
|
|
|
|
wrapper.style.cssText = 'width: 455px; height: 355px';
|
|
wrapper.appendChild(canvas);
|
|
body.appendChild(wrapper);
|
|
});
|
|
|
|
it('should resize the canvas when attached to a different parent', function(done) {
|
|
var canvas = document.createElement('canvas');
|
|
var wrapper = document.createElement('div');
|
|
var body = window.document.body;
|
|
var chart = new Chart(canvas, {
|
|
type: 'line',
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 0, dh: 0,
|
|
rw: 0, rh: 0,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 355,
|
|
rw: 455, rh: 355,
|
|
});
|
|
|
|
var target = document.createElement('div');
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 640, dh: 480,
|
|
rw: 640, rh: 480,
|
|
});
|
|
|
|
body.removeChild(wrapper);
|
|
body.removeChild(target);
|
|
chart.destroy();
|
|
done();
|
|
});
|
|
|
|
target.style.cssText = 'width: 640px; height: 480px';
|
|
target.appendChild(canvas);
|
|
body.appendChild(target);
|
|
});
|
|
|
|
wrapper.style.cssText = 'width: 455px; height: 355px';
|
|
wrapper.appendChild(canvas);
|
|
body.appendChild(wrapper);
|
|
});
|
|
|
|
// https://github.com/chartjs/Chart.js/issues/3521
|
|
it('should resize the canvas after the wrapper has been re-attached to the DOM', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 320px; height: 350px'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 350,
|
|
rw: 320, rh: 350,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
var parent = wrapper.parentNode;
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 355,
|
|
rw: 320, rh: 355,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 355,
|
|
rw: 455, rh: 355,
|
|
});
|
|
|
|
done();
|
|
});
|
|
|
|
parent.removeChild(wrapper);
|
|
wrapper.style.width = '455px';
|
|
parent.appendChild(wrapper);
|
|
});
|
|
|
|
parent.removeChild(wrapper);
|
|
setTimeout(() => {
|
|
parent.appendChild(wrapper);
|
|
wrapper.style.height = '355px';
|
|
}, 0);
|
|
});
|
|
|
|
// https://github.com/chartjs/Chart.js/issues/9875
|
|
it('should detect detach/attach in series', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 320px; height: 350px'
|
|
}
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
var parent = wrapper.parentNode;
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 350,
|
|
rw: 320, rh: 350,
|
|
});
|
|
|
|
done();
|
|
});
|
|
|
|
parent.removeChild(wrapper);
|
|
parent.appendChild(wrapper);
|
|
});
|
|
|
|
it('should detect detach/attach/detach in series', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 320px; height: 350px'
|
|
}
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
var parent = wrapper.parentNode;
|
|
|
|
waitForResize(chart, function() {
|
|
fail();
|
|
});
|
|
|
|
parent.removeChild(wrapper);
|
|
parent.appendChild(wrapper);
|
|
parent.removeChild(wrapper);
|
|
|
|
setTimeout(function() {
|
|
expect(chart.attached).toBeFalse();
|
|
done();
|
|
}, 100);
|
|
});
|
|
|
|
it('should detect attach/detach in series', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 320px; height: 350px'
|
|
}
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
var parent = wrapper.parentNode;
|
|
|
|
parent.removeChild(wrapper);
|
|
|
|
setTimeout(function() {
|
|
expect(chart.attached).toBeFalse();
|
|
|
|
waitForResize(chart, function() {
|
|
fail();
|
|
});
|
|
|
|
parent.appendChild(wrapper);
|
|
parent.removeChild(wrapper);
|
|
|
|
setTimeout(function() {
|
|
expect(chart.attached).toBeFalse();
|
|
|
|
done();
|
|
}, 100);
|
|
}, 100);
|
|
});
|
|
|
|
// https://github.com/chartjs/Chart.js/issues/4737
|
|
it('should resize the canvas when re-creating the chart', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true
|
|
}
|
|
}, {
|
|
wrapper: {
|
|
style: 'width: 320px'
|
|
}
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
|
|
waitForResize(chart, function() {
|
|
var canvas = chart.canvas;
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 320,
|
|
rw: 320, rh: 320,
|
|
});
|
|
|
|
chart.destroy();
|
|
chart = new Chart(canvas, {
|
|
type: 'line',
|
|
options: {
|
|
responsive: true
|
|
}
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 455,
|
|
rw: 455, rh: 455,
|
|
});
|
|
|
|
chart.destroy();
|
|
window.document.body.removeChild(wrapper);
|
|
done();
|
|
});
|
|
canvas.parentNode.style.width = '455px';
|
|
canvas.parentNode.style.height = '455px';
|
|
});
|
|
});
|
|
|
|
it('should resize the canvas if attached to the DOM after construction with multiple parents', function(done) {
|
|
var canvas = document.createElement('canvas');
|
|
var wrapper = document.createElement('div');
|
|
var wrapper2 = document.createElement('div');
|
|
var wrapper3 = document.createElement('div');
|
|
var body = window.document.body;
|
|
|
|
var chart = new Chart(canvas, {
|
|
type: 'line',
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 0, dh: 0,
|
|
rw: 0, rh: 0,
|
|
});
|
|
expect(chart.chartArea).toBeUndefined();
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 455, dh: 355,
|
|
rw: 455, rh: 355,
|
|
});
|
|
|
|
expect(chart.chartArea).not.toBeUndefined();
|
|
|
|
body.removeChild(wrapper3);
|
|
chart.destroy();
|
|
done();
|
|
});
|
|
|
|
wrapper3.appendChild(wrapper2);
|
|
wrapper2.appendChild(wrapper);
|
|
wrapper.style.cssText = 'width: 455px; height: 355px';
|
|
wrapper.appendChild(canvas);
|
|
body.appendChild(wrapper3);
|
|
});
|
|
});
|
|
|
|
describe('config.options.responsive: true (maintainAspectRatio: true)', function() {
|
|
it('should resize the canvas with correct aspect ratio when parent width changes', function(done) {
|
|
var chart = acquireChart({
|
|
type: 'line', // AR == 2
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: true
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 300px; height: 350px; position: relative'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 150,
|
|
rw: 300, rh: 150,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 450, dh: 225,
|
|
rw: 450, rh: 225,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 150, dh: 75,
|
|
rw: 150, rh: 75,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.width = '150px';
|
|
});
|
|
wrapper.style.width = '450px';
|
|
});
|
|
|
|
it('should maintain aspect ratio when parent height changes', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: true
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: ''
|
|
},
|
|
wrapper: {
|
|
style: 'width: 320px; height: 350px; position: relative'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 160,
|
|
rw: 320, rh: 160,
|
|
});
|
|
|
|
var wrapper = chart.canvas.parentNode;
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 160,
|
|
rw: 320, rh: 160,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 300, dh: 150,
|
|
rw: 300, rh: 150,
|
|
});
|
|
|
|
done();
|
|
});
|
|
wrapper.style.height = '150px';
|
|
});
|
|
wrapper.style.height = '455px';
|
|
});
|
|
});
|
|
|
|
describe('Retina scale (a.k.a. device pixel ratio)', function() {
|
|
beforeEach(function() {
|
|
this.devicePixelRatio = window.devicePixelRatio;
|
|
window.devicePixelRatio = 3;
|
|
});
|
|
|
|
afterEach(function() {
|
|
window.devicePixelRatio = this.devicePixelRatio;
|
|
});
|
|
|
|
// see https://github.com/chartjs/Chart.js/issues/3575
|
|
it ('should scale the render size but not the "implicit" display size', function() {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
width: 320,
|
|
height: 240,
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 240,
|
|
rw: 960, rh: 720,
|
|
});
|
|
});
|
|
|
|
it ('should scale the render size but not the "explicit" display size', function() {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: false
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: 'width: 320px; height: 240px'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 240,
|
|
rw: 960, rh: 720,
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('config.options.devicePixelRatio', function() {
|
|
beforeEach(function() {
|
|
this.devicePixelRatio = window.devicePixelRatio;
|
|
window.devicePixelRatio = 1;
|
|
});
|
|
|
|
afterEach(function() {
|
|
window.devicePixelRatio = this.devicePixelRatio;
|
|
});
|
|
|
|
// see https://github.com/chartjs/Chart.js/issues/3575
|
|
it ('should scale the render size but not the "implicit" display size', function() {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: false,
|
|
devicePixelRatio: 3
|
|
}
|
|
}, {
|
|
canvas: {
|
|
width: 320,
|
|
height: 240,
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 240,
|
|
rw: 960, rh: 720,
|
|
});
|
|
});
|
|
|
|
it ('should scale the render size but not the "explicit" display size', function() {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: false,
|
|
devicePixelRatio: 3
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: 'width: 320px; height: 240px'
|
|
}
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 320, dh: 240,
|
|
rw: 960, rh: 720,
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('config.options.aspectRatio', function() {
|
|
it('should resize the canvas when the aspectRatio option changes', function(done) {
|
|
var chart = acquireChart({
|
|
options: {
|
|
responsive: true,
|
|
aspectRatio: 1,
|
|
}
|
|
}, {
|
|
canvas: {
|
|
style: '',
|
|
width: 400,
|
|
},
|
|
});
|
|
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 400, dh: 400,
|
|
rw: 400, rh: 400,
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
expect(chart).toBeChartOfSize({
|
|
dw: 400, dh: 200,
|
|
rw: 400, rh: 200,
|
|
});
|
|
|
|
done();
|
|
});
|
|
chart.options.aspectRatio = 2;
|
|
chart.resize();
|
|
});
|
|
});
|
|
|
|
describe('controller.reset', function() {
|
|
it('should reset the chart elements', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 0]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true
|
|
}
|
|
});
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
|
|
// Verify that points are at their initial correct location,
|
|
// then we will reset and see that they moved
|
|
expect(meta.data[0].y).toBeCloseToPixel(333);
|
|
expect(meta.data[1].y).toBeCloseToPixel(183);
|
|
expect(meta.data[2].y).toBeCloseToPixel(32);
|
|
expect(meta.data[3].y).toBeCloseToPixel(482);
|
|
|
|
chart.reset();
|
|
|
|
// For a line chart, the animation state is the bottom
|
|
expect(meta.data[0].y).toBeCloseToPixel(482);
|
|
expect(meta.data[1].y).toBeCloseToPixel(482);
|
|
expect(meta.data[2].y).toBeCloseToPixel(482);
|
|
expect(meta.data[3].y).toBeCloseToPixel(482);
|
|
});
|
|
});
|
|
|
|
describe('config update', function() {
|
|
it ('should update options', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 100]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true
|
|
}
|
|
});
|
|
|
|
chart.options = {
|
|
responsive: false,
|
|
scales: {
|
|
y: {
|
|
min: 0,
|
|
max: 10
|
|
}
|
|
}
|
|
};
|
|
chart.update();
|
|
|
|
var yScale = chart.scales.y;
|
|
expect(yScale.options.min).toBe(0);
|
|
expect(yScale.options.max).toBe(10);
|
|
});
|
|
|
|
it ('should update scales options', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 100]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true
|
|
}
|
|
});
|
|
|
|
chart.options.scales.y.min = 0;
|
|
chart.options.scales.y.max = 10;
|
|
chart.update();
|
|
|
|
var yScale = chart.scales.y;
|
|
expect(yScale.options.min).toBe(0);
|
|
expect(yScale.options.max).toBe(10);
|
|
});
|
|
|
|
it ('should update scales options from new object', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 100]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true
|
|
}
|
|
});
|
|
|
|
var newScalesConfig = {
|
|
y: {
|
|
min: 0,
|
|
max: 10
|
|
}
|
|
};
|
|
chart.options.scales = newScalesConfig;
|
|
|
|
chart.update();
|
|
|
|
var yScale = chart.scales.y;
|
|
expect(yScale.options.min).toBe(0);
|
|
expect(yScale.options.max).toBe(10);
|
|
});
|
|
|
|
it ('should remove discarded scale', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 100]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true,
|
|
scales: {
|
|
yAxis0: {
|
|
min: 0,
|
|
max: 10
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
var newScalesConfig = {
|
|
y: {
|
|
min: 0,
|
|
max: 10
|
|
}
|
|
};
|
|
chart.options.scales = newScalesConfig;
|
|
|
|
chart.update();
|
|
|
|
var yScale = chart.scales.yAxis0;
|
|
expect(yScale).toBeUndefined();
|
|
var newyScale = chart.scales.y;
|
|
expect(newyScale.options.min).toBe(0);
|
|
expect(newyScale.options.max).toBe(10);
|
|
});
|
|
|
|
it ('should update tooltip options', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 100]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true
|
|
}
|
|
});
|
|
|
|
var newTooltipConfig = {
|
|
mode: 'dataset',
|
|
intersect: false
|
|
};
|
|
chart.options.plugins.tooltip = newTooltipConfig;
|
|
|
|
chart.update();
|
|
expect(chart.tooltip.options).toEqualOptions(newTooltipConfig);
|
|
});
|
|
|
|
it ('should update the tooltip on update', async function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
data: [10, 20, 30, 100]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true,
|
|
tooltip: {
|
|
mode: 'nearest'
|
|
}
|
|
}
|
|
});
|
|
|
|
// Trigger an event over top of a point to
|
|
// put an item into the tooltip
|
|
var meta = chart.getDatasetMeta(0);
|
|
var point = meta.data[1];
|
|
|
|
await jasmine.triggerMouseEvent(chart, 'mousemove', point);
|
|
// Check and see if tooltip was displayed
|
|
var tooltip = chart.tooltip;
|
|
|
|
expect(chart._active[0].element).toEqual(point);
|
|
expect(tooltip._active[0].element).toEqual(point);
|
|
|
|
// Update and confirm tooltip is updated
|
|
chart.update();
|
|
expect(chart._active[0].element).toEqual(point);
|
|
expect(tooltip._active[0].element).toEqual(point);
|
|
});
|
|
|
|
it ('should update the metadata', function() {
|
|
var cfg = {
|
|
data: {
|
|
labels: ['A', 'B', 'C', 'D'],
|
|
datasets: [{
|
|
type: 'line',
|
|
data: [10, 20, 30, 0]
|
|
}]
|
|
},
|
|
options: {
|
|
responsive: true,
|
|
scales: {
|
|
x: {
|
|
type: 'category'
|
|
},
|
|
y: {
|
|
type: 'linear',
|
|
title: {
|
|
display: true,
|
|
text: 'Value'
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
var chart = acquireChart(cfg);
|
|
var meta = chart.getDatasetMeta(0);
|
|
expect(meta.type).toBe('line');
|
|
|
|
// change the dataset to bar and check that meta was updated
|
|
chart.config.data.datasets[0].type = 'bar';
|
|
chart.update();
|
|
meta = chart.getDatasetMeta(0);
|
|
expect(meta.type).toBe('bar');
|
|
});
|
|
});
|
|
|
|
describe('plugin.extensions', function() {
|
|
var hooks = {
|
|
install: ['install'],
|
|
uninstall: ['uninstall'],
|
|
init: [
|
|
'beforeInit',
|
|
'resize',
|
|
'afterInit'
|
|
],
|
|
start: ['start'],
|
|
stop: ['stop'],
|
|
update: [
|
|
'beforeUpdate',
|
|
'beforeLayout',
|
|
'beforeDataLimits', // y-axis fit
|
|
'afterDataLimits',
|
|
'beforeBuildTicks',
|
|
'afterBuildTicks',
|
|
'beforeDataLimits', // x-axis fit
|
|
'afterDataLimits',
|
|
'beforeBuildTicks',
|
|
'afterBuildTicks',
|
|
// 'beforeBuildTicks', // y-axis re-fit
|
|
// 'afterBuildTicks',
|
|
'afterLayout',
|
|
'beforeDatasetsUpdate',
|
|
'beforeDatasetUpdate',
|
|
'afterDatasetUpdate',
|
|
'afterDatasetsUpdate',
|
|
'afterUpdate',
|
|
],
|
|
render: [
|
|
'beforeRender',
|
|
'beforeDraw',
|
|
'beforeDatasetsDraw',
|
|
'beforeDatasetDraw',
|
|
'afterDatasetDraw',
|
|
'afterDatasetsDraw',
|
|
// 'beforeTooltipDraw',
|
|
// 'afterTooltipDraw',
|
|
'afterDraw',
|
|
'afterRender',
|
|
],
|
|
resize: [
|
|
'resize'
|
|
],
|
|
destroy: [
|
|
'beforeDestroy',
|
|
'afterDestroy'
|
|
]
|
|
};
|
|
|
|
it ('should notify plugin in correct order', function(done) {
|
|
var plugin = this.plugin = {};
|
|
var sequence = [];
|
|
|
|
Object.keys(hooks).forEach(function(group) {
|
|
hooks[group].forEach(function(name) {
|
|
plugin[name] = function() {
|
|
sequence.push(name);
|
|
};
|
|
});
|
|
});
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {datasets: [{}]},
|
|
plugins: [plugin],
|
|
options: {
|
|
responsive: true
|
|
}
|
|
}, {
|
|
wrapper: {
|
|
style: 'width: 300px'
|
|
}
|
|
});
|
|
|
|
waitForResize(chart, function() {
|
|
chart.destroy();
|
|
|
|
expect(sequence).toEqual([].concat(
|
|
hooks.install,
|
|
hooks.start,
|
|
hooks.init,
|
|
hooks.update,
|
|
hooks.render,
|
|
hooks.resize,
|
|
hooks.update,
|
|
hooks.render,
|
|
hooks.destroy,
|
|
hooks.stop,
|
|
hooks.uninstall
|
|
));
|
|
|
|
done();
|
|
});
|
|
chart.canvas.parentNode.style.width = '400px';
|
|
chart.canvas.parentNode.style.height = '400px';
|
|
});
|
|
|
|
it ('should notify initially disabled plugin in correct order', function() {
|
|
var plugin = this.plugin = {id: 'plugin'};
|
|
var sequence = [];
|
|
|
|
Object.keys(hooks).forEach(function(group) {
|
|
hooks[group].forEach(function(name) {
|
|
plugin[name] = function() {
|
|
sequence.push(name);
|
|
};
|
|
});
|
|
});
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {datasets: [{}]},
|
|
plugins: [plugin],
|
|
options: {
|
|
plugins: {
|
|
plugin: false
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(sequence).toEqual([].concat(
|
|
hooks.install
|
|
));
|
|
|
|
sequence = [];
|
|
chart.options.plugins.plugin = true;
|
|
chart.update();
|
|
|
|
expect(sequence).toEqual([].concat(
|
|
hooks.start,
|
|
hooks.update,
|
|
hooks.render
|
|
));
|
|
|
|
sequence = [];
|
|
chart.options.plugins.plugin = false;
|
|
chart.update();
|
|
|
|
expect(sequence).toEqual(hooks.stop);
|
|
|
|
sequence = [];
|
|
chart.destroy();
|
|
|
|
expect(sequence).toEqual(hooks.uninstall);
|
|
});
|
|
|
|
it('should not notify before/afterDatasetDraw if dataset is hidden', function() {
|
|
var sequence = [];
|
|
var plugin = this.plugin = {
|
|
beforeDatasetDraw: function(chart, args) {
|
|
sequence.push('before-' + args.index);
|
|
},
|
|
afterDatasetDraw: function(chart, args) {
|
|
sequence.push('after-' + args.index);
|
|
}
|
|
};
|
|
|
|
window.acquireChart({
|
|
type: 'line',
|
|
data: {datasets: [{}, {hidden: true}, {}]},
|
|
plugins: [plugin]
|
|
});
|
|
|
|
expect(sequence).toEqual([
|
|
'before-2', 'after-2',
|
|
'before-0', 'after-0'
|
|
]);
|
|
});
|
|
|
|
it('should not crash when accessing options of a blank inline plugin', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {datasets: [{}]},
|
|
plugins: [{}],
|
|
});
|
|
|
|
function iterateOptions() {
|
|
for (const plugin of chart._plugins._init) {
|
|
// triggering bug https://github.com/chartjs/Chart.js/issues/9368
|
|
expect(Object.getPrototypeOf(plugin.options)).toBeNull();
|
|
}
|
|
}
|
|
|
|
expect(iterateOptions).not.toThrow();
|
|
});
|
|
});
|
|
|
|
describe('metasets', function() {
|
|
beforeEach(function() {
|
|
this.chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [
|
|
{label: '1', order: 2},
|
|
{label: '2', order: 1},
|
|
{label: '3', order: 4},
|
|
{label: '4', order: 3},
|
|
]
|
|
}
|
|
});
|
|
});
|
|
afterEach(function() {
|
|
const metasets = this.chart._metasets;
|
|
expect(metasets.length).toEqual(this.chart.data.datasets.length);
|
|
for (let i = 0; i < metasets.length; i++) {
|
|
expect(metasets[i].index).toEqual(i);
|
|
expect(metasets[i]._dataset).toEqual(this.chart.data.datasets[i]);
|
|
}
|
|
});
|
|
it('should build metasets array in order', function() {
|
|
const metasets = this.chart._metasets;
|
|
expect(metasets[0].order).toEqual(2);
|
|
expect(metasets[1].order).toEqual(1);
|
|
expect(metasets[2].order).toEqual(4);
|
|
expect(metasets[3].order).toEqual(3);
|
|
});
|
|
it('should build sorted metasets array in correct order', function() {
|
|
const metasets = this.chart._sortedMetasets;
|
|
expect(metasets[0].order).toEqual(1);
|
|
expect(metasets[1].order).toEqual(2);
|
|
expect(metasets[2].order).toEqual(3);
|
|
expect(metasets[3].order).toEqual(4);
|
|
});
|
|
it('should be moved when datasets are removed from beginning', function() {
|
|
this.chart.data.datasets.splice(0, 2);
|
|
this.chart.update();
|
|
const metasets = this.chart._metasets;
|
|
expect(metasets[0].order).toEqual(4);
|
|
expect(metasets[1].order).toEqual(3);
|
|
});
|
|
it('should be moved when datasets are removed from middle', function() {
|
|
this.chart.data.datasets.splice(1, 2);
|
|
this.chart.update();
|
|
const metasets = this.chart._metasets;
|
|
expect(metasets[0].order).toEqual(2);
|
|
expect(metasets[1].order).toEqual(3);
|
|
});
|
|
it('should be moved when datasets are inserted', function() {
|
|
this.chart.data.datasets.splice(1, 0, {label: '1.5', order: 5});
|
|
this.chart.update();
|
|
const metasets = this.chart._metasets;
|
|
expect(metasets[0].order).toEqual(2);
|
|
expect(metasets[1].order).toEqual(5);
|
|
expect(metasets[2].order).toEqual(1);
|
|
expect(metasets[3].order).toEqual(4);
|
|
expect(metasets[4].order).toEqual(3);
|
|
});
|
|
it('should be replaced when dataset is replaced', function() {
|
|
this.chart.data.datasets.splice(1, 1, {label: '1.5', order: 5});
|
|
this.chart.update();
|
|
const metasets = this.chart._metasets;
|
|
expect(metasets[0].order).toEqual(2);
|
|
expect(metasets[1].order).toEqual(5);
|
|
expect(metasets[2].order).toEqual(4);
|
|
expect(metasets[3].order).toEqual(3);
|
|
});
|
|
it('should update properly when dataset locations are swapped', function() {
|
|
const orig = this.chart.data.datasets;
|
|
this.chart.data.datasets = [orig[0], orig[2], orig[1], orig[3]];
|
|
this.chart.update();
|
|
let metasets = this.chart._metasets;
|
|
expect(metasets[0].label).toEqual('1');
|
|
expect(metasets[1].label).toEqual('3');
|
|
expect(metasets[2].label).toEqual('2');
|
|
expect(metasets[3].label).toEqual('4');
|
|
|
|
this.chart.data.datasets = [{label: 'new', order: 10}, orig[3], orig[2], orig[1], orig[0]];
|
|
this.chart.update();
|
|
metasets = this.chart._metasets;
|
|
expect(metasets[0].label).toEqual('new');
|
|
expect(metasets[1].label).toEqual('4');
|
|
expect(metasets[2].label).toEqual('3');
|
|
expect(metasets[3].label).toEqual('2');
|
|
expect(metasets[4].label).toEqual('1');
|
|
|
|
this.chart.data.datasets = [orig[3], orig[2], orig[1], {label: 'new', order: 10}];
|
|
this.chart.update();
|
|
metasets = this.chart._metasets;
|
|
expect(metasets[0].label).toEqual('4');
|
|
expect(metasets[1].label).toEqual('3');
|
|
expect(metasets[2].label).toEqual('2');
|
|
expect(metasets[3].label).toEqual('new');
|
|
});
|
|
});
|
|
|
|
describe('_destroyDatasetMeta', function() {
|
|
beforeEach(function() {
|
|
this.chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [
|
|
{label: '1', order: 2},
|
|
{label: '2', order: 1},
|
|
{label: '3', order: 4},
|
|
{label: '4', order: 3},
|
|
]
|
|
}
|
|
});
|
|
});
|
|
it('cleans up metasets when the chart is destroyed', function() {
|
|
this.chart.destroy();
|
|
expect(this.chart._metasets).toEqual([undefined, undefined, undefined, undefined]);
|
|
});
|
|
});
|
|
|
|
describe('data visibility', function() {
|
|
it('should hide a dataset', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
data: [0, 1, 2]
|
|
}],
|
|
labels: ['a', 'b', 'c']
|
|
}
|
|
});
|
|
|
|
chart.setDatasetVisibility(0, false);
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
expect(meta.hidden).toBe(true);
|
|
});
|
|
|
|
it('should toggle data visibility by index', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
datasets: [{
|
|
data: [1, 2, 3]
|
|
}]
|
|
}
|
|
});
|
|
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
|
|
chart.toggleDataVisibility(1);
|
|
expect(chart.getDataVisibility(1)).toBe(false);
|
|
|
|
chart.update();
|
|
expect(chart.getDataVisibility(1)).toBe(false);
|
|
});
|
|
|
|
it('should maintain data visibility indices when data changes', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
labels: ['0', '1', '2', '3'],
|
|
datasets: [{
|
|
data: [0, 1, 2, 3]
|
|
}, {
|
|
data: [0, 1, 2, 3]
|
|
}]
|
|
}
|
|
});
|
|
|
|
chart.toggleDataVisibility(3);
|
|
|
|
chart.data.labels.splice(1, 1);
|
|
chart.data.datasets[0].data.splice(1, 1);
|
|
chart.data.datasets[1].data.splice(1, 1);
|
|
chart.update();
|
|
|
|
expect(chart.getDataVisibility(0)).toBe(true);
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
expect(chart.getDataVisibility(2)).toBe(false);
|
|
|
|
chart.data.labels.unshift('-1', '-2');
|
|
chart.data.datasets[0].data.unshift(-1, -2);
|
|
chart.data.datasets[1].data.unshift(-1, -2);
|
|
chart.update();
|
|
|
|
expect(chart.getDataVisibility(0)).toBe(true);
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
expect(chart.getDataVisibility(2)).toBe(true);
|
|
expect(chart.getDataVisibility(3)).toBe(true);
|
|
expect(chart.getDataVisibility(4)).toBe(false);
|
|
|
|
chart.data.labels.shift();
|
|
chart.data.datasets[0].data.shift();
|
|
chart.data.datasets[1].data.shift();
|
|
chart.update();
|
|
|
|
expect(chart.getDataVisibility(0)).toBe(true);
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
expect(chart.getDataVisibility(2)).toBe(true);
|
|
expect(chart.getDataVisibility(3)).toBe(false);
|
|
|
|
chart.data.labels.pop();
|
|
chart.data.datasets[0].data.pop();
|
|
chart.data.datasets[1].data.pop();
|
|
chart.update();
|
|
|
|
expect(chart.getDataVisibility(0)).toBe(true);
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
expect(chart.getDataVisibility(2)).toBe(true);
|
|
expect(chart.getDataVisibility(3)).toBe(true);
|
|
|
|
chart.toggleDataVisibility(1);
|
|
chart.data.labels.splice(1, 0, 'b');
|
|
chart.data.datasets[0].data.splice(1, 0, 1);
|
|
chart.data.datasets[1].data.splice(1, 0, 1);
|
|
chart.update();
|
|
|
|
expect(chart.getDataVisibility(0)).toBe(true);
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
expect(chart.getDataVisibility(2)).toBe(false);
|
|
expect(chart.getDataVisibility(3)).toBe(true);
|
|
});
|
|
|
|
it('should leave data visibility indices intact when data changes in non-uniform way', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
labels: ['0', '1', '2', '3'],
|
|
datasets: [{
|
|
data: [0, 1, 2, 3]
|
|
}, {
|
|
data: [0, 1, 2, 3]
|
|
}]
|
|
}
|
|
});
|
|
|
|
chart.toggleDataVisibility(0);
|
|
|
|
chart.data.labels.push('a');
|
|
chart.data.datasets[0].data.pop();
|
|
chart.data.datasets[1].data.push(5);
|
|
chart.update();
|
|
|
|
expect(chart.getDataVisibility(0)).toBe(false);
|
|
expect(chart.getDataVisibility(1)).toBe(true);
|
|
expect(chart.getDataVisibility(2)).toBe(true);
|
|
expect(chart.getDataVisibility(3)).toBe(true);
|
|
});
|
|
});
|
|
|
|
describe('isDatasetVisible', function() {
|
|
it('should return false if index is out of bounds', function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
data: [0, 1, 2]
|
|
}],
|
|
labels: ['a', 'b', 'c']
|
|
}
|
|
});
|
|
|
|
expect(chart.isDatasetVisible(1)).toBe(false);
|
|
});
|
|
});
|
|
|
|
describe('getChart', function() {
|
|
it('should get the chart from the canvas ID', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
datasets: [{
|
|
data: [1, 2, 3]
|
|
}]
|
|
}
|
|
});
|
|
chart.canvas.id = 'myID';
|
|
|
|
expect(Chart.getChart('myID')).toBe(chart);
|
|
});
|
|
|
|
it('should get the chart from an HTMLCanvasElement', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
datasets: [{
|
|
data: [1, 2, 3]
|
|
}]
|
|
}
|
|
});
|
|
expect(Chart.getChart(chart.canvas)).toBe(chart);
|
|
});
|
|
|
|
it('should get the chart from an CanvasRenderingContext2D', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
datasets: [{
|
|
data: [1, 2, 3]
|
|
}]
|
|
}
|
|
});
|
|
expect(Chart.getChart(chart.ctx)).toBe(chart);
|
|
});
|
|
|
|
it('should return undefined when a chart is not found or bad data is provided', function() {
|
|
expect(Chart.getChart(1)).toBeUndefined();
|
|
});
|
|
});
|
|
|
|
describe('active elements', function() {
|
|
it('should set the active elements', function() {
|
|
var chart = acquireChart({
|
|
type: 'pie',
|
|
data: {
|
|
datasets: [{
|
|
data: [1, 2, 3],
|
|
borderColor: 'red',
|
|
hoverBorderColor: 'blue',
|
|
}]
|
|
}
|
|
});
|
|
|
|
const meta = chart.getDatasetMeta(0);
|
|
let props = meta.data[0].getProps(['borderColor']);
|
|
expect(props.options.borderColor).toEqual('red');
|
|
|
|
chart.setActiveElements([{
|
|
datasetIndex: 0,
|
|
index: 0,
|
|
}]);
|
|
|
|
props = meta.data[0].getProps(['borderColor']);
|
|
expect(props.options.borderColor).toEqual('blue');
|
|
|
|
const active = chart.getActiveElements();
|
|
expect(active.length).toEqual(1);
|
|
expect(active[0].element).toBe(meta.data[0]);
|
|
});
|
|
});
|
|
|
|
it('should not replace the user set active elements by event replay', async function() {
|
|
var chart = acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: [1, 2, 3],
|
|
datasets: [{
|
|
data: [1, 2, 3],
|
|
borderColor: 'red',
|
|
hoverBorderColor: 'blue',
|
|
}]
|
|
}
|
|
});
|
|
|
|
const meta = chart.getDatasetMeta(0);
|
|
const point0 = meta.data[0];
|
|
const point1 = meta.data[1];
|
|
|
|
let props = meta.data[0].getProps(['borderColor']);
|
|
expect(props.options.borderColor).toEqual('red');
|
|
|
|
await jasmine.triggerMouseEvent(chart, 'mousemove', {x: point0.x, y: point0.y});
|
|
expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 0, element: point0}]);
|
|
expect(point0.options.borderColor).toEqual('blue');
|
|
expect(point1.options.borderColor).toEqual('red');
|
|
|
|
chart.setActiveElements([{datasetIndex: 0, index: 1}]);
|
|
expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 1, element: point1}]);
|
|
expect(point0.options.borderColor).toEqual('red');
|
|
expect(point1.options.borderColor).toEqual('blue');
|
|
|
|
chart.update();
|
|
expect(chart.getActiveElements()).toEqual([{datasetIndex: 0, index: 1, element: point1}]);
|
|
expect(point0.options.borderColor).toEqual('red');
|
|
expect(point1.options.borderColor).toEqual('blue');
|
|
});
|
|
|
|
describe('platform', function() {
|
|
it('should use the platform constructor provided in config', function() {
|
|
const chart = acquireChart({
|
|
platform: Chart.platforms.BasicPlatform,
|
|
type: 'line',
|
|
});
|
|
expect(chart.platform).toBeInstanceOf(Chart.platforms.BasicPlatform);
|
|
});
|
|
});
|
|
});
|