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4b421a50bf
The `fill` option now accepts the index of the target dataset (number) or a string starting by "+" or "-" followed by a number representing the dataset index relative to the current one (e.g. `fill: "-2"` on dataset at index 3 will fill to dataset at index 1). It's also possible to "propagate" the filling to the target of an hidden dataset (`options.plugins.filler.propagate`). Fill boundaries `zero`, `top` and `bottom` have been deprecated and replaced by `origin`, `start` and `end`. Implementation has been moved out of the line element into a new plugin (`src/plugins/plugin.filler.js`) and does not rely anymore on the deprecated model `scaleTop`, `scaleBottom` and `scaleZero` values. Drawing Bézier splines has been refactored in the canvas helpers (note that `Chart.helpers.canvas` is now an alias of `Chart.canvasHelpers`). Add 3 new examples and extend utils with a pseudo-random number generator that can be initialized with `srand`. That makes possible to design examples starting always with the same initial data.
163 lines
4.4 KiB
JavaScript
163 lines
4.4 KiB
JavaScript
describe('Deprecations', function() {
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describe('Version 2.6.0', function() {
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// https://github.com/chartjs/Chart.js/issues/2481
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describe('Chart.Controller', function() {
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it('should be defined and an alias of Chart', function() {
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expect(Chart.Controller).toBeDefined();
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expect(Chart.Controller).toBe(Chart);
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});
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it('should be prototype of chart instances', function() {
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var chart = acquireChart({});
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expect(chart.constructor).toBe(Chart.Controller);
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expect(chart instanceof Chart.Controller).toBeTruthy();
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expect(Chart.Controller.prototype.isPrototypeOf(chart)).toBeTruthy();
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});
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});
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describe('chart.chart', function() {
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it('should be defined and an alias of chart', function() {
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var chart = acquireChart({});
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var proxy = chart.chart;
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expect(proxy).toBeDefined();
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expect(proxy).toBe(chart);
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});
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it('should defined previously existing properties', function() {
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var chart = acquireChart({}, {
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canvas: {
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style: 'width: 140px; height: 320px'
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}
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});
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var proxy = chart.chart;
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expect(proxy.config instanceof Object).toBeTruthy();
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expect(proxy.controller instanceof Chart.Controller).toBeTruthy();
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expect(proxy.canvas instanceof HTMLCanvasElement).toBeTruthy();
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expect(proxy.ctx instanceof CanvasRenderingContext2D).toBeTruthy();
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expect(proxy.currentDevicePixelRatio).toBe(window.devicePixelRatio || 1);
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expect(proxy.aspectRatio).toBe(140/320);
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expect(proxy.height).toBe(320);
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expect(proxy.width).toBe(140);
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});
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});
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describe('Chart.Animation.animationObject', function() {
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it('should be defined and an alias of Chart.Animation', function(done) {
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var animation = null;
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acquireChart({
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options: {
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animation: {
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duration: 50,
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onComplete: function(arg) {
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animation = arg;
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}
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}
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}
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});
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setTimeout(function() {
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expect(animation).not.toBeNull();
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expect(animation.animationObject).toBeDefined();
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expect(animation.animationObject).toBe(animation);
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done();
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}, 200);
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});
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});
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describe('Chart.Animation.chartInstance', function() {
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it('should be defined and an alias of Chart.Animation.chart', function(done) {
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var animation = null;
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var chart = acquireChart({
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options: {
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animation: {
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duration: 50,
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onComplete: function(arg) {
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animation = arg;
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}
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}
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}
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});
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setTimeout(function() {
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expect(animation).not.toBeNull();
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expect(animation.chartInstance).toBeDefined();
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expect(animation.chartInstance).toBe(chart);
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done();
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}, 200);
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});
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});
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describe('Chart.elements.Line: fill option', function() {
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it('should decode "zero", "top" and "bottom" as "origin", "start" and "end"', 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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{fill: 'zero'},
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{fill: 'bottom'},
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{fill: 'top'},
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]
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}
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});
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['origin', 'start', 'end'].forEach(function(expected, index) {
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var meta = chart.getDatasetMeta(index);
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expect(meta.$filler).toBeDefined();
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expect(meta.$filler.fill).toBe(expected);
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});
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});
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});
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});
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describe('Version 2.5.0', function() {
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describe('Chart.PluginBase', function() {
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it('should exist and extendable', function() {
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expect(Chart.PluginBase).toBeDefined();
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expect(Chart.PluginBase.extend).toBeDefined();
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});
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});
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describe('IPlugin.afterScaleUpdate', function() {
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it('should be called after the chart as been layed out', function() {
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var sequence = [];
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var plugin = {};
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var hooks = [
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'beforeLayout',
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'afterScaleUpdate',
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'afterLayout'
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];
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var override = Chart.layoutService.update;
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Chart.layoutService.update = function() {
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sequence.push('layoutUpdate');
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override.apply(this, arguments);
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};
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hooks.forEach(function(name) {
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plugin[name] = function() {
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sequence.push(name);
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};
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});
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window.acquireChart({plugins: [plugin]});
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expect(sequence).toEqual([].concat(
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'beforeLayout',
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'layoutUpdate',
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'afterScaleUpdate',
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'afterLayout'
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));
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});
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});
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});
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describe('Version 2.1.5', function() {
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// https://github.com/chartjs/Chart.js/pull/2752
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describe('Chart.pluginService', function() {
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it('should be defined and an alias of Chart.plugins', function() {
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expect(Chart.pluginService).toBeDefined();
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expect(Chart.pluginService).toBe(Chart.plugins);
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});
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});
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});
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});
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