2016-10-01 15:38:19 +02:00
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describe('Chart.DatasetController', function() {
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it('should listen for dataset data insertions or removals', function() {
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var data = [0, 1, 2, 3, 4, 5];
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var chart = acquireChart({
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type: 'line',
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data: {
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datasets: [{
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data: data
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}]
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}
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});
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var controller = chart.getDatasetMeta(0).controller;
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var methods = [
|
2020-02-10 23:57:22 +01:00
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'_onDataPush',
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'_onDataPop',
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'_onDataShift',
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'_onDataSplice',
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'_onDataUnshift'
|
2016-10-01 15:38:19 +02:00
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];
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methods.forEach(function(method) {
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spyOn(controller, method);
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});
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data.push(6, 7, 8);
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data.push(9);
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data.pop();
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data.shift();
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data.shift();
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data.shift();
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data.splice(1, 4, 10, 11);
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data.unshift(12, 13, 14, 15);
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data.unshift(16, 17);
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[2, 1, 3, 1, 2].forEach(function(expected, index) {
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expect(controller[methods[index]].calls.count()).toBe(expected);
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});
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});
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2019-02-11 19:31:26 +01:00
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describe('inextensible data', function() {
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it('should handle a frozen data object', function() {
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function createChart() {
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var data = Object.freeze([0, 1, 2, 3, 4, 5]);
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expect(Object.isExtensible(data)).toBeFalsy();
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var chart = acquireChart({
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type: 'line',
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data: {
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datasets: [{
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data: data
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}]
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}
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});
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var dataset = chart.data.datasets[0];
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dataset.data = Object.freeze([5, 4, 3, 2, 1, 0]);
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expect(Object.isExtensible(dataset.data)).toBeFalsy();
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chart.update();
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// Tests that the unlisten path also works for frozen objects
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chart.destroy();
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}
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expect(createChart).not.toThrow();
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});
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it('should handle a sealed data object', function() {
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function createChart() {
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var data = Object.seal([0, 1, 2, 3, 4, 5]);
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expect(Object.isExtensible(data)).toBeFalsy();
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var chart = acquireChart({
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type: 'line',
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data: {
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datasets: [{
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data: data
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}]
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}
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});
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var dataset = chart.data.datasets[0];
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dataset.data = Object.seal([5, 4, 3, 2, 1, 0]);
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expect(Object.isExtensible(dataset.data)).toBeFalsy();
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chart.update();
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// Tests that the unlisten path also works for frozen objects
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chart.destroy();
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}
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expect(createChart).not.toThrow();
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});
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it('should handle an unextendable data object', function() {
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function createChart() {
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var data = Object.preventExtensions([0, 1, 2, 3, 4, 5]);
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expect(Object.isExtensible(data)).toBeFalsy();
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var chart = acquireChart({
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type: 'line',
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data: {
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datasets: [{
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data: data
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}]
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}
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});
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var dataset = chart.data.datasets[0];
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dataset.data = Object.preventExtensions([5, 4, 3, 2, 1, 0]);
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expect(Object.isExtensible(dataset.data)).toBeFalsy();
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chart.update();
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// Tests that the unlisten path also works for frozen objects
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chart.destroy();
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}
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expect(createChart).not.toThrow();
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});
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});
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|
2020-01-06 13:22:18 +01:00
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it('should parse data using correct scales', function() {
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const data1 = [0, 1, 2, 3, 4, 5];
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const data2 = ['a', 'b', 'c', 'd', 'a'];
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const chart = acquireChart({
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type: 'line',
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data: {
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datasets: [
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{data: data1},
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{data: data2, xAxisID: 'x2', yAxisID: 'y2'}
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]
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},
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options: {
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scales: {
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x: {
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type: 'category',
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labels: ['one', 'two', 'three', 'four', 'five', 'six']
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},
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x2: {
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type: 'logarithmic',
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labels: ['1', '10', '100', '1000', '2000']
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},
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y: {
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type: 'linear'
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},
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y2: {
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type: 'category',
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labels: ['a', 'b', 'c', 'd', 'e']
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}
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}
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}
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});
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const meta1 = chart.getDatasetMeta(0);
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const parsedXValues1 = meta1._parsed.map(p => p.x);
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const parsedYValues1 = meta1._parsed.map(p => p.y);
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expect(meta1.data.length).toBe(6);
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expect(parsedXValues1).toEqual([0, 1, 2, 3, 4, 5]); // label indices
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expect(parsedYValues1).toEqual(data1);
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const meta2 = chart.getDatasetMeta(1);
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const parsedXValues2 = meta2._parsed.map(p => p.x);
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const parsedYValues2 = meta2._parsed.map(p => p.y);
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expect(meta2.data.length).toBe(5);
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expect(parsedXValues2).toEqual([1, 10, 100, 1000, 2000]); // logarithmic scale labels
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expect(parsedYValues2).toEqual([0, 1, 2, 3, 0]); // label indices
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});
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|
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|
|
2019-12-14 05:51:59 +01:00
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|
|
it('should synchronize metadata when data are inserted or removed and parsing is on', function() {
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|
const data = [0, 1, 2, 3, 4, 5];
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const chart = acquireChart({
|
2016-10-01 15:38:19 +02:00
|
|
|
type: 'line',
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data: {
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|
|
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datasets: [{
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data: data
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}]
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}
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});
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|
2019-12-14 05:51:59 +01:00
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|
|
const meta = chart.getDatasetMeta(0);
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const parsedYValues = () => meta._parsed.map(p => p.y);
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|
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let first, second, last;
|
2016-10-01 15:38:19 +02:00
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first = meta.data[0];
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last = meta.data[5];
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data.push(6, 7, 8);
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data.push(9);
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expect(meta.data.length).toBe(10);
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expect(meta.data[0]).toBe(first);
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expect(meta.data[5]).toBe(last);
|
2019-12-14 05:51:59 +01:00
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|
expect(parsedYValues()).toEqual(data);
|
2016-10-01 15:38:19 +02:00
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last = meta.data[9];
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data.pop();
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expect(meta.data.length).toBe(9);
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expect(meta.data[0]).toBe(first);
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expect(meta.data.indexOf(last)).toBe(-1);
|
2019-12-14 05:51:59 +01:00
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expect(parsedYValues()).toEqual(data);
|
2016-10-01 15:38:19 +02:00
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last = meta.data[8];
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data.shift();
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data.shift();
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data.shift();
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expect(meta.data.length).toBe(6);
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expect(meta.data.indexOf(first)).toBe(-1);
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expect(meta.data[5]).toBe(last);
|
2019-12-14 05:51:59 +01:00
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expect(parsedYValues()).toEqual(data);
|
2016-10-01 15:38:19 +02:00
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first = meta.data[0];
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second = meta.data[1];
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last = meta.data[5];
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data.splice(1, 4, 10, 11);
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expect(meta.data.length).toBe(4);
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expect(meta.data[0]).toBe(first);
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expect(meta.data[3]).toBe(last);
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expect(meta.data.indexOf(second)).toBe(-1);
|
2019-12-14 05:51:59 +01:00
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expect(parsedYValues()).toEqual(data);
|
2016-10-01 15:38:19 +02:00
|
|
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|
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|
|
data.unshift(12, 13, 14, 15);
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data.unshift(16, 17);
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expect(meta.data.length).toBe(10);
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expect(meta.data[6]).toBe(first);
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expect(meta.data[9]).toBe(last);
|
2019-12-14 05:51:59 +01:00
|
|
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expect(parsedYValues()).toEqual(data);
|
2016-10-01 15:38:19 +02:00
|
|
|
});
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|
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|
|
2019-12-08 14:52:11 +01:00
|
|
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it('should synchronize metadata when data are inserted or removed and parsing is off', function() {
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var data = [{x: 0, y: 0}, {x: 1, y: 1}, {x: 2, y: 2}, {x: 3, y: 3}, {x: 4, y: 4}, {x: 5, y: 5}];
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var chart = acquireChart({
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type: 'line',
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data: {
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|
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datasets: [{
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|
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data: data
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|
}]
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},
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options: {
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parsing: false,
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|
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scales: {
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|
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x: {type: 'linear'},
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|
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y: {type: 'linear'}
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}
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}
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});
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|
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var meta = chart.getDatasetMeta(0);
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var controller = meta.controller;
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var first, last;
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|
|
2020-02-22 14:35:16 +01:00
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first = controller.getParsed(0);
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last = controller.getParsed(5);
|
2019-12-08 14:52:11 +01:00
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data.push({x: 6, y: 6}, {x: 7, y: 7}, {x: 8, y: 8});
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data.push({x: 9, y: 9});
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expect(meta.data.length).toBe(10);
|
2020-02-22 14:35:16 +01:00
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expect(controller.getParsed(0)).toBe(first);
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expect(controller.getParsed(5)).toBe(last);
|
2019-12-08 14:52:11 +01:00
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|
2020-02-22 14:35:16 +01:00
|
|
|
last = controller.getParsed(9);
|
2019-12-08 14:52:11 +01:00
|
|
|
data.pop();
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expect(meta.data.length).toBe(9);
|
2020-02-22 14:35:16 +01:00
|
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|
expect(controller.getParsed(0)).toBe(first);
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expect(controller.getParsed(9)).toBe(undefined);
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expect(controller.getParsed(8)).toEqual({x: 8, y: 8});
|
2019-12-08 14:52:11 +01:00
|
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|
2020-02-22 14:35:16 +01:00
|
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last = controller.getParsed(8);
|
2019-12-08 14:52:11 +01:00
|
|
|
data.shift();
|
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|
|
data.shift();
|
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|
|
data.shift();
|
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|
|
expect(meta.data.length).toBe(6);
|
2020-02-22 14:35:16 +01:00
|
|
|
expect(controller.getParsed(5)).toBe(last);
|
2019-12-08 14:52:11 +01:00
|
|
|
|
2020-02-22 14:35:16 +01:00
|
|
|
first = controller.getParsed(0);
|
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|
|
last = controller.getParsed(5);
|
2019-12-08 14:52:11 +01:00
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|
|
data.splice(1, 4, {x: 10, y: 10}, {x: 11, y: 11});
|
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|
|
expect(meta.data.length).toBe(4);
|
2020-02-22 14:35:16 +01:00
|
|
|
expect(controller.getParsed(0)).toBe(first);
|
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|
|
expect(controller.getParsed(3)).toBe(last);
|
|
|
|
expect(controller.getParsed(1)).toEqual({x: 10, y: 10});
|
2019-12-08 14:52:11 +01:00
|
|
|
|
|
|
|
data.unshift({x: 12, y: 12}, {x: 13, y: 13}, {x: 14, y: 14}, {x: 15, y: 15});
|
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|
|
data.unshift({x: 16, y: 16}, {x: 17, y: 17});
|
|
|
|
expect(meta.data.length).toBe(10);
|
2020-02-22 14:35:16 +01:00
|
|
|
expect(controller.getParsed(6)).toBe(first);
|
|
|
|
expect(controller.getParsed(9)).toBe(last);
|
2019-12-08 14:52:11 +01:00
|
|
|
});
|
|
|
|
|
2016-10-01 15:38:19 +02:00
|
|
|
it('should re-synchronize metadata when the data object reference changes', function() {
|
|
|
|
var data0 = [0, 1, 2, 3, 4, 5];
|
|
|
|
var data1 = [6, 7, 8];
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'line',
|
|
|
|
data: {
|
|
|
|
datasets: [{
|
|
|
|
data: data0
|
|
|
|
}]
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(6);
|
2020-01-11 00:31:17 +01:00
|
|
|
expect(meta._parsed.map(p => p.y)).toEqual(data0);
|
2016-10-01 15:38:19 +02:00
|
|
|
|
|
|
|
chart.data.datasets[0].data = data1;
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(3);
|
2020-01-11 00:31:17 +01:00
|
|
|
expect(meta._parsed.map(p => p.y)).toEqual(data1);
|
|
|
|
|
|
|
|
data1.push(9);
|
|
|
|
expect(meta.data.length).toBe(4);
|
|
|
|
|
|
|
|
chart.data.datasets[0].data = data0;
|
|
|
|
chart.update();
|
2016-10-01 15:38:19 +02:00
|
|
|
|
|
|
|
expect(meta.data.length).toBe(6);
|
2020-01-11 00:31:17 +01:00
|
|
|
expect(meta._parsed.map(p => p.y)).toEqual(data0);
|
2016-10-01 15:38:19 +02:00
|
|
|
});
|
|
|
|
|
|
|
|
it('should re-synchronize metadata when data are unusually altered', function() {
|
|
|
|
var data = [0, 1, 2, 3, 4, 5];
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'line',
|
|
|
|
data: {
|
|
|
|
datasets: [{
|
|
|
|
data: data
|
|
|
|
}]
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(6);
|
|
|
|
|
|
|
|
data.length = 2;
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(2);
|
|
|
|
|
|
|
|
data.length = 42;
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(42);
|
|
|
|
});
|
|
|
|
|
2020-05-19 23:58:53 +02:00
|
|
|
// https://github.com/chartjs/Chart.js/issues/7243
|
|
|
|
it('should re-synchronize metadata when data is moved and values are equal', function() {
|
|
|
|
var data = [10, 10, 10, 10, 10, 10];
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'line',
|
|
|
|
data: {
|
|
|
|
labels: ['a', 'b', 'c', 'd', 'e', 'f'],
|
|
|
|
datasets: [{
|
|
|
|
data,
|
|
|
|
fill: true
|
|
|
|
}]
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(6);
|
|
|
|
const firstX = meta.data[0].x;
|
|
|
|
|
|
|
|
data.push(data.shift());
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(meta.data.length).toBe(6);
|
|
|
|
expect(meta.data[0].x).toEqual(firstX);
|
|
|
|
});
|
|
|
|
|
2019-06-14 11:34:56 +02:00
|
|
|
it('should re-synchronize metadata when scaleID changes', function() {
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'line',
|
|
|
|
data: {
|
|
|
|
datasets: [{
|
|
|
|
data: [],
|
|
|
|
xAxisID: 'firstXScaleID',
|
|
|
|
yAxisID: 'firstYScaleID',
|
|
|
|
}]
|
|
|
|
},
|
|
|
|
options: {
|
|
|
|
scales: {
|
2019-11-22 00:46:49 +01:00
|
|
|
firstXScaleID: {
|
|
|
|
type: 'category',
|
|
|
|
position: 'bottom'
|
|
|
|
},
|
|
|
|
secondXScaleID: {
|
|
|
|
type: 'category',
|
|
|
|
position: 'bottom'
|
|
|
|
},
|
|
|
|
firstYScaleID: {
|
|
|
|
type: 'linear',
|
|
|
|
position: 'left'
|
|
|
|
},
|
|
|
|
secondYScaleID: {
|
|
|
|
type: 'linear',
|
|
|
|
position: 'left'
|
|
|
|
},
|
2019-06-14 11:34:56 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
|
|
|
|
|
|
expect(meta.xAxisID).toBe('firstXScaleID');
|
|
|
|
expect(meta.yAxisID).toBe('firstYScaleID');
|
|
|
|
|
|
|
|
chart.data.datasets[0].xAxisID = 'secondXScaleID';
|
|
|
|
chart.data.datasets[0].yAxisID = 'secondYScaleID';
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(meta.xAxisID).toBe('secondXScaleID');
|
|
|
|
expect(meta.yAxisID).toBe('secondYScaleID');
|
|
|
|
});
|
|
|
|
|
2020-01-14 01:33:25 +01:00
|
|
|
it('should re-synchronize stacks when stack is changed', function() {
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'bar',
|
|
|
|
data: {
|
|
|
|
labels: ['a', 'b'],
|
|
|
|
datasets: [{
|
|
|
|
data: [1, 10],
|
|
|
|
stack: '1'
|
|
|
|
}, {
|
|
|
|
data: [2, 20],
|
|
|
|
stack: '2'
|
|
|
|
}, {
|
|
|
|
data: [3, 30],
|
|
|
|
stack: '1'
|
|
|
|
}]
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
expect(chart._stacks).toEqual({
|
|
|
|
'x.y.1.bar': {
|
|
|
|
0: {0: 1, 2: 3},
|
|
|
|
1: {0: 10, 2: 30}
|
|
|
|
},
|
|
|
|
'x.y.2.bar': {
|
|
|
|
0: {1: 2},
|
|
|
|
1: {1: 20}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
chart.data.datasets[2].stack = '2';
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(chart._stacks).toEqual({
|
|
|
|
'x.y.1.bar': {
|
|
|
|
0: {0: 1},
|
|
|
|
1: {0: 10}
|
|
|
|
},
|
|
|
|
'x.y.2.bar': {
|
|
|
|
0: {1: 2, 2: 3},
|
|
|
|
1: {1: 20, 2: 30}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
});
|
|
|
|
|
2016-10-01 15:38:19 +02:00
|
|
|
it('should cleanup attached properties when the reference changes or when the chart is destroyed', function() {
|
|
|
|
var data0 = [0, 1, 2, 3, 4, 5];
|
|
|
|
var data1 = [6, 7, 8];
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'line',
|
|
|
|
data: {
|
|
|
|
datasets: [{
|
|
|
|
data: data0
|
|
|
|
}]
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
var hooks = ['push', 'pop', 'shift', 'splice', 'unshift'];
|
|
|
|
|
|
|
|
expect(data0._chartjs).toBeDefined();
|
|
|
|
hooks.forEach(function(hook) {
|
|
|
|
expect(data0[hook]).not.toBe(Array.prototype[hook]);
|
|
|
|
});
|
|
|
|
|
|
|
|
expect(data1._chartjs).not.toBeDefined();
|
|
|
|
hooks.forEach(function(hook) {
|
|
|
|
expect(data1[hook]).toBe(Array.prototype[hook]);
|
|
|
|
});
|
|
|
|
|
|
|
|
chart.data.datasets[0].data = data1;
|
|
|
|
chart.update();
|
|
|
|
|
|
|
|
expect(data0._chartjs).not.toBeDefined();
|
|
|
|
hooks.forEach(function(hook) {
|
|
|
|
expect(data0[hook]).toBe(Array.prototype[hook]);
|
|
|
|
});
|
|
|
|
|
|
|
|
expect(data1._chartjs).toBeDefined();
|
|
|
|
hooks.forEach(function(hook) {
|
|
|
|
expect(data1[hook]).not.toBe(Array.prototype[hook]);
|
|
|
|
});
|
|
|
|
|
|
|
|
chart.destroy();
|
|
|
|
|
|
|
|
expect(data1._chartjs).not.toBeDefined();
|
|
|
|
hooks.forEach(function(hook) {
|
|
|
|
expect(data1[hook]).toBe(Array.prototype[hook]);
|
|
|
|
});
|
|
|
|
});
|
2020-06-08 23:49:17 +02:00
|
|
|
|
|
|
|
it('should resolve data element options to the default color', function() {
|
|
|
|
var data0 = [0, 1, 2, 3, 4, 5];
|
|
|
|
var oldColor = Chart.defaults.color;
|
|
|
|
Chart.defaults.color = 'red';
|
|
|
|
var chart = acquireChart({
|
|
|
|
type: 'line',
|
|
|
|
data: {
|
|
|
|
datasets: [{
|
|
|
|
data: data0
|
|
|
|
}]
|
|
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
var meta = chart.getDatasetMeta(0);
|
|
|
|
expect(meta.dataset.options.borderColor).toBe('red');
|
|
|
|
expect(meta.data[0].options.borderColor).toBe('red');
|
|
|
|
|
|
|
|
// Reset old shared state
|
|
|
|
Chart.defaults.color = oldColor;
|
|
|
|
});
|
2016-10-01 15:38:19 +02:00
|
|
|
});
|