mirror of
https://github.com/chartjs/Chart.js.git
synced 2024-10-06 12:19:08 +02:00
1257 lines
31 KiB
JavaScript
1257 lines
31 KiB
JavaScript
function getLabels(scale) {
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return scale.ticks.map(t => t.label);
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}
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describe('Linear Scale', function() {
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describe('auto', jasmine.fixture.specs('scale.linear'));
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it('Should register the constructor with the registry', function() {
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var Constructor = Chart.registry.getScale('linear');
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expect(Constructor).not.toBe(undefined);
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expect(typeof Constructor).toBe('function');
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});
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it('Should have the correct default config', function() {
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var defaultConfig = Chart.defaults.scales.linear;
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expect(defaultConfig.ticks.callback).toEqual(jasmine.any(Function));
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});
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it('Should correctly determine the max & min data values', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [10, 5, 0, -5, 78, -100]
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}, {
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yAxisID: 'y2',
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data: [-1000, 1000],
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}, {
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yAxisID: 'y',
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data: [150]
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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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: 'linear',
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position: 'right',
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(-100);
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expect(chart.scales.y.max).toBe(150);
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});
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it('Should correctly determine the max & min of string data values', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: ['10', '5', '0', '-5', '78', '-100']
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}, {
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yAxisID: 'y2',
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data: ['-1000', '1000'],
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}, {
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yAxisID: 'y',
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data: ['150']
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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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: 'linear',
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position: 'right'
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(-100);
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expect(chart.scales.y.max).toBe(150);
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});
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it('Should correctly determine the max & min when no values provided and suggested minimum and maximum are set', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: []
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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suggestedMin: -10,
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suggestedMax: 15
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(-10);
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expect(chart.scales.y.max).toBe(15);
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});
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it('Should correctly determine the max & min when no datasets are associated and suggested minimum and maximum are set', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: []
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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suggestedMin: -10,
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suggestedMax: 0
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}
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}
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}
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});
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expect(chart.scales.y.min).toBe(-10);
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expect(chart.scales.y.max).toBe(0);
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});
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it('Should correctly determine the max & min data values ignoring hidden datasets', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: ['10', '5', '0', '-5', '78', '-100']
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}, {
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yAxisID: 'y2',
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data: ['-1000', '1000'],
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}, {
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yAxisID: 'y',
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data: ['150'],
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hidden: true
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear'
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},
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y2: {
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position: 'right',
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type: 'linear'
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(-100);
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expect(chart.scales.y.max).toBe(80);
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});
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it('Should correctly determine the max & min data values ignoring data that is NaN', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [null, 90, NaN, undefined, 45, 30, Infinity, -Infinity]
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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beginAtZero: false
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}
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}
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}
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});
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expect(chart.scales.y.min).toBe(30);
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expect(chart.scales.y.max).toBe(90);
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// Scale is now stacked
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chart.scales.y.options.stacked = true;
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chart.update();
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expect(chart.scales.y.min).toBe(30);
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expect(chart.scales.y.max).toBe(90);
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chart.scales.y.options.beginAtZero = true;
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chart.update();
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expect(chart.scales.y.min).toBe(0);
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expect(chart.scales.y.max).toBe(90);
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});
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it('Should correctly determine the max & min data values for small numbers', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [-1e-8, 3e-8, -4e-8, 6e-8]
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}],
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labels: ['a', 'b', 'c', 'd']
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},
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options: {
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scales: {
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y: {
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type: 'linear'
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min * 1e8).toBeCloseTo(-4);
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expect(chart.scales.y.max * 1e8).toBeCloseTo(6);
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});
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it('Should correctly determine the max & min for scatter data', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'x',
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yAxisID: 'y',
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data: [{
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x: 10,
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y: 100
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}, {
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x: -10,
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y: 0
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}, {
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x: 0,
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y: 0
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}, {
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x: 99,
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y: 7
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}]
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}],
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},
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options: {
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scales: {
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x: {
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type: 'linear',
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position: 'bottom'
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},
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y: {
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type: 'linear'
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}
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}
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}
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});
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chart.update();
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expect(chart.scales.x.min).toBe(-20);
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expect(chart.scales.x.max).toBe(100);
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expect(chart.scales.y.min).toBe(0);
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expect(chart.scales.y.max).toBe(100);
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});
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it('Should correctly get the label for the given index', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'x',
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yAxisID: 'y',
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data: [{
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x: 10,
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y: 100
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}, {
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x: -10,
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y: 0
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}, {
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x: 0,
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y: 0
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}, {
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x: 99,
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y: 7
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}]
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}],
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},
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options: {
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scales: {
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x: {
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type: 'linear',
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position: 'bottom'
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},
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y: {
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type: 'linear'
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}
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}
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}
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});
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chart.update();
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expect(chart.scales.y.getLabelForValue(7)).toBe('7');
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});
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it('Should correctly use the locale setting when getting a label', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'x',
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yAxisID: 'y',
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data: [{
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x: 10,
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y: 100
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}, {
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x: -10,
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y: 0
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}, {
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x: 0,
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y: 0
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}, {
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x: 99,
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y: 7
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}]
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}],
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},
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options: {
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locale: 'de-DE',
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scales: {
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x: {
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type: 'linear',
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position: 'bottom'
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},
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y: {
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type: 'linear'
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}
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}
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}
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});
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chart.update();
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expect(chart.scales.y.getLabelForValue(7.07)).toBe('7,07');
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});
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it('Should correctly determine the min and max data values when stacked mode is turned on', 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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yAxisID: 'y',
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data: [10, 5, 0, -5, 78, -100],
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type: 'bar'
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}, {
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yAxisID: 'y2',
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data: [-1000, 1000],
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}, {
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yAxisID: 'y',
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data: [150, 0, 0, -100, -10, 9],
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type: 'bar'
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}, {
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yAxisID: 'y',
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data: [10, 10, 10, 10, 10, 10],
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type: 'line'
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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stacked: true
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},
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y2: {
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position: 'right',
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type: 'linear'
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}
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}
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}
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});
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chart.update();
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expect(chart.scales.y.min).toBe(-150);
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expect(chart.scales.y.max).toBe(200);
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});
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it('Should correctly determine the min and max data values when stacked mode is turned on and there are hidden datasets', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [10, 5, 0, -5, 78, -100],
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}, {
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yAxisID: 'y2',
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data: [-1000, 1000],
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}, {
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yAxisID: 'y',
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data: [150, 0, 0, -100, -10, 9],
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}, {
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yAxisID: 'y',
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data: [10, 20, 30, 40, 50, 60],
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hidden: true
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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stacked: true
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},
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y2: {
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position: 'right',
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type: 'linear'
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}
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}
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}
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});
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chart.update();
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expect(chart.scales.y.min).toBe(-150);
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expect(chart.scales.y.max).toBe(200);
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});
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it('Should correctly determine the min and max data values when stacked mode is turned on there are multiple types of datasets', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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type: 'bar',
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data: [10, 5, 0, -5, 78, -100]
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}, {
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type: 'line',
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data: [10, 10, 10, 10, 10, 10],
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}, {
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type: 'bar',
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data: [150, 0, 0, -100, -10, 9]
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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stacked: true
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}
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}
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}
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});
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chart.scales.y.determineDataLimits();
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expect(chart.scales.y.min).toBe(-105);
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expect(chart.scales.y.max).toBe(160);
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});
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it('Should ensure that the scale has a max and min that are not equal', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear'
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(0);
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expect(chart.scales.y.max).toBe(1);
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});
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it('Should ensure that the scale has a max and min that are not equal when beginAtZero is set', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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beginAtZero: true
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}
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}
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}
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});
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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(0);
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expect(chart.scales.y.max).toBe(1);
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});
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it('Should use the suggestedMin and suggestedMax options', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [1, 1, 1, 2, 1, 0]
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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suggestedMax: 10,
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suggestedMin: -10
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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(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(-10);
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expect(chart.scales.y.max).toBe(10);
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});
|
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|
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it('Should use the min and max options', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [1, 1, 1, 2, 1, 0]
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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max: 1010,
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min: -1010
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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(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(-1010);
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expect(chart.scales.y.max).toBe(1010);
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var labels = getLabels(chart.scales.y);
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expect(labels[0]).toBe('-1,010');
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expect(labels[labels.length - 1]).toBe('1,010');
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});
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it('Should use min, max and stepSize to create fixed spaced ticks', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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yAxisID: 'y',
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data: [10, 3, 6, 8, 3, 1]
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}],
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labels: ['a', 'b', 'c', 'd', 'e', 'f']
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},
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options: {
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scales: {
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y: {
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type: 'linear',
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min: 1,
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max: 11,
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ticks: {
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stepSize: 2
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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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expect(chart.scales.y).not.toEqual(undefined); // must construct
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expect(chart.scales.y.min).toBe(1);
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expect(chart.scales.y.max).toBe(11);
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expect(getLabels(chart.scales.y)).toEqual(['1', '3', '5', '7', '9', '11']);
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});
|
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|
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it('Should create decimal steps if stepSize is a decimal number', function() {
|
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var chart = window.acquireChart({
|
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type: 'bar',
|
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data: {
|
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datasets: [{
|
|
yAxisID: 'y',
|
|
data: [10, 3, 6, 8, 3, 1]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd', 'e', 'f']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
ticks: {
|
|
stepSize: 2.5
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.y).not.toEqual(undefined); // must construct
|
|
expect(chart.scales.y.min).toBe(0);
|
|
expect(chart.scales.y.max).toBe(10);
|
|
expect(getLabels(chart.scales.y)).toEqual(['0', '2.5', '5', '7.5', '10']);
|
|
});
|
|
|
|
describe('precision', function() {
|
|
it('Should create integer steps if precision is 0', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
yAxisID: 'y',
|
|
data: [0, 1, 2, 1, 0, 1]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd', 'e', 'f']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
ticks: {
|
|
precision: 0
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.y).not.toEqual(undefined); // must construct
|
|
expect(chart.scales.y.min).toBe(0);
|
|
expect(chart.scales.y.max).toBe(2);
|
|
expect(getLabels(chart.scales.y)).toEqual(['0', '1', '2']);
|
|
});
|
|
|
|
it('Should round the step size to the given number of decimal places', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
yAxisID: 'y',
|
|
data: [0, 0.001, 0.002, 0.003, 0, 0.001]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd', 'e', 'f']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
ticks: {
|
|
precision: 2
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.y).not.toEqual(undefined); // must construct
|
|
expect(chart.scales.y.min).toBe(0);
|
|
expect(chart.scales.y.max).toBe(0.01);
|
|
expect(getLabels(chart.scales.y)).toEqual(['0', '0.01']);
|
|
});
|
|
});
|
|
|
|
|
|
it('should forcibly include 0 in the range if the beginAtZero option is used', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
yAxisID: 'y',
|
|
data: [20, 30, 40, 50]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
beginAtZero: false
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.y).not.toEqual(undefined); // must construct
|
|
expect(getLabels(chart.scales.y)).toEqual(['20', '25', '30', '35', '40', '45', '50']);
|
|
|
|
chart.scales.y.options.beginAtZero = true;
|
|
chart.update();
|
|
expect(getLabels(chart.scales.y)).toEqual(['0', '5', '10', '15', '20', '25', '30', '35', '40', '45', '50']);
|
|
|
|
chart.data.datasets[0].data = [-20, -30, -40, -50];
|
|
chart.update();
|
|
expect(getLabels(chart.scales.y)).toEqual(['-50', '-45', '-40', '-35', '-30', '-25', '-20', '-15', '-10', '-5', '0']);
|
|
|
|
chart.scales.y.options.beginAtZero = false;
|
|
chart.update();
|
|
expect(getLabels(chart.scales.y)).toEqual(['-50', '-45', '-40', '-35', '-30', '-25', '-20']);
|
|
});
|
|
|
|
it('Should generate tick marks in the correct order in reversed mode', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
yAxisID: 'y',
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
reverse: true
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(getLabels(chart.scales.y)).toEqual(['80', '70', '60', '50', '40', '30', '20', '10', '0']);
|
|
expect(chart.scales.y.start).toBe(80);
|
|
expect(chart.scales.y.end).toBe(0);
|
|
});
|
|
|
|
it('should use the correct number of decimal places in the default format function', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
yAxisID: 'y',
|
|
data: [0.06, 0.005, 0, 0.025, 0.0078]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
}
|
|
}
|
|
}
|
|
});
|
|
expect(getLabels(chart.scales.y)).toEqual(['0', '0.01', '0.02', '0.03', '0.04', '0.05', '0.06']);
|
|
});
|
|
|
|
it('Should correctly limit the maximum number of ticks', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
labels: ['a', 'b'],
|
|
datasets: [{
|
|
data: [0.5, 2.5]
|
|
}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
beginAtZero: false
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(getLabels(chart.scales.y)).toEqual(['0.5', '1.0', '1.5', '2.0', '2.5']);
|
|
|
|
chart.options.scales.y.ticks.maxTicksLimit = 11;
|
|
chart.update();
|
|
|
|
expect(getLabels(chart.scales.y)).toEqual(['0.5', '1.0', '1.5', '2.0', '2.5']);
|
|
|
|
chart.options.scales.y.ticks.maxTicksLimit = 21;
|
|
chart.update();
|
|
|
|
expect(getLabels(chart.scales.y)).toEqual([
|
|
'0.5',
|
|
'0.6', '0.7', '0.8', '0.9', '1.0', '1.1', '1.2', '1.3', '1.4', '1.5',
|
|
'1.6', '1.7', '1.8', '1.9', '2.0', '2.1', '2.2', '2.3', '2.4', '2.5'
|
|
]);
|
|
|
|
chart.options.scales.y.ticks.maxTicksLimit = 11;
|
|
chart.options.scales.y.ticks.stepSize = 0.01;
|
|
chart.update();
|
|
|
|
expect(getLabels(chart.scales.y)).toEqual(['0.5', '1.0', '1.5', '2.0', '2.5']);
|
|
|
|
chart.options.scales.y.min = 0.3;
|
|
chart.options.scales.y.max = 2.8;
|
|
chart.update();
|
|
|
|
expect(getLabels(chart.scales.y)).toEqual(['0.3', '0.8', '1.3', '1.8', '2.3', '2.8']);
|
|
});
|
|
|
|
it('Should bound to data', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: ['a', 'b'],
|
|
datasets: [{
|
|
data: [1, 99]
|
|
}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
bounds: 'data'
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.y.min).toEqual(1);
|
|
expect(chart.scales.y.max).toEqual(99);
|
|
});
|
|
|
|
it('Should build labels using the user supplied callback', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
yAxisID: 'y',
|
|
data: [10, 5, 0, 25, 78]
|
|
}],
|
|
labels: ['a', 'b', 'c', 'd']
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
ticks: {
|
|
callback: function(value, index) {
|
|
return index.toString();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
// Just the index
|
|
expect(getLabels(chart.scales.y)).toEqual(['0', '1', '2', '3', '4', '5', '6', '7', '8']);
|
|
});
|
|
|
|
it('Should get the correct pixel value for a point', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
labels: [-1, 1],
|
|
datasets: [{
|
|
xAxisID: 'x',
|
|
yAxisID: 'y',
|
|
data: [-1, 1]
|
|
}],
|
|
},
|
|
options: {
|
|
scales: {
|
|
x: {
|
|
type: 'linear',
|
|
position: 'bottom'
|
|
},
|
|
y: {
|
|
type: 'linear'
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.x;
|
|
expect(xScale.getPixelForValue(1)).toBeCloseToPixel(501); // right - paddingRight
|
|
expect(xScale.getPixelForValue(-1)).toBeCloseToPixel(31 + 3); // left + paddingLeft + tick padding
|
|
expect(xScale.getPixelForValue(0)).toBeCloseToPixel(266 + 3 / 2); // halfway*/
|
|
|
|
expect(xScale.getValueForPixel(501)).toBeCloseTo(1, 1e-2);
|
|
expect(xScale.getValueForPixel(31)).toBeCloseTo(-1, 1e-2);
|
|
expect(xScale.getValueForPixel(266)).toBeCloseTo(0, 1e-2);
|
|
|
|
var yScale = chart.scales.y;
|
|
expect(yScale.getPixelForValue(1)).toBeCloseToPixel(32); // right - paddingRight
|
|
expect(yScale.getPixelForValue(-1)).toBeCloseToPixel(484); // left + paddingLeft
|
|
expect(yScale.getPixelForValue(0)).toBeCloseToPixel(258); // halfway*/
|
|
|
|
expect(yScale.getValueForPixel(32)).toBeCloseTo(1, 1e-2);
|
|
expect(yScale.getValueForPixel(484)).toBeCloseTo(-1, 1e-2);
|
|
expect(yScale.getValueForPixel(258)).toBeCloseTo(0, 1e-2);
|
|
});
|
|
|
|
it('should fit correctly', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'x',
|
|
yAxisID: 'y',
|
|
data: [{
|
|
x: 10,
|
|
y: 100
|
|
}, {
|
|
x: -10,
|
|
y: 0
|
|
}, {
|
|
x: 0,
|
|
y: 0
|
|
}, {
|
|
x: 99,
|
|
y: 7
|
|
}]
|
|
}],
|
|
},
|
|
options: {
|
|
scales: {
|
|
x: {
|
|
type: 'linear',
|
|
position: 'bottom'
|
|
},
|
|
y: {
|
|
type: 'linear'
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
var xScale = chart.scales.x;
|
|
var yScale = chart.scales.y;
|
|
expect(xScale.paddingTop).toBeCloseToPixel(0);
|
|
expect(xScale.paddingBottom).toBeCloseToPixel(0);
|
|
expect(xScale.paddingLeft).toBeCloseToPixel(12);
|
|
expect(xScale.paddingRight).toBeCloseToPixel(13.5);
|
|
expect(xScale.width).toBeCloseToPixel(468 - 3); // minus tick padding
|
|
expect(xScale.height).toBeCloseToPixel(30);
|
|
|
|
expect(yScale.paddingTop).toBeCloseToPixel(10);
|
|
expect(yScale.paddingBottom).toBeCloseToPixel(10);
|
|
expect(yScale.paddingLeft).toBeCloseToPixel(0);
|
|
expect(yScale.paddingRight).toBeCloseToPixel(0);
|
|
expect(yScale.width).toBeCloseToPixel(31 + 3); // plus tick padding
|
|
expect(yScale.height).toBeCloseToPixel(450);
|
|
|
|
// Extra size when scale label showing
|
|
xScale.options.title.display = true;
|
|
yScale.options.title.display = true;
|
|
chart.update();
|
|
|
|
expect(xScale.paddingTop).toBeCloseToPixel(0);
|
|
expect(xScale.paddingBottom).toBeCloseToPixel(0);
|
|
expect(xScale.paddingLeft).toBeCloseToPixel(12);
|
|
expect(xScale.paddingRight).toBeCloseToPixel(13.5);
|
|
expect(xScale.width).toBeCloseToPixel(442);
|
|
expect(xScale.height).toBeCloseToPixel(50);
|
|
|
|
expect(yScale.paddingTop).toBeCloseToPixel(10);
|
|
expect(yScale.paddingBottom).toBeCloseToPixel(10);
|
|
expect(yScale.paddingLeft).toBeCloseToPixel(0);
|
|
expect(yScale.paddingRight).toBeCloseToPixel(0);
|
|
expect(yScale.width).toBeCloseToPixel(58);
|
|
expect(yScale.height).toBeCloseToPixel(429);
|
|
});
|
|
|
|
it('should fit correctly when display is turned off', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'line',
|
|
data: {
|
|
datasets: [{
|
|
xAxisID: 'x',
|
|
yAxisID: 'y',
|
|
data: [{
|
|
x: 10,
|
|
y: 100
|
|
}, {
|
|
x: -10,
|
|
y: 0
|
|
}, {
|
|
x: 0,
|
|
y: 0
|
|
}, {
|
|
x: 99,
|
|
y: 7
|
|
}]
|
|
}],
|
|
},
|
|
options: {
|
|
scales: {
|
|
x: {
|
|
type: 'linear',
|
|
position: 'bottom'
|
|
},
|
|
y: {
|
|
type: 'linear',
|
|
grid: {
|
|
drawTicks: false,
|
|
drawBorder: false
|
|
},
|
|
title: {
|
|
display: false,
|
|
lineHeight: 1.2
|
|
},
|
|
ticks: {
|
|
display: false,
|
|
padding: 0
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
var yScale = chart.scales.y;
|
|
expect(yScale.width).toBeCloseToPixel(0);
|
|
});
|
|
|
|
it('max and min value should be valid and finite when charts datasets are hidden', function() {
|
|
var barData = {
|
|
labels: ['S1', 'S2', 'S3'],
|
|
datasets: [{
|
|
label: 'Closed',
|
|
backgroundColor: '#382765',
|
|
data: [2500, 2000, 1500]
|
|
}, {
|
|
label: 'In Progress',
|
|
backgroundColor: '#7BC225',
|
|
data: [1000, 2000, 1500]
|
|
}, {
|
|
label: 'Assigned',
|
|
backgroundColor: '#ffC225',
|
|
data: [1000, 2000, 1500]
|
|
}]
|
|
};
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: barData,
|
|
options: {
|
|
indexAxis: 'y',
|
|
scales: {
|
|
x: {
|
|
stacked: true
|
|
},
|
|
y: {
|
|
stacked: true
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
barData.datasets.forEach(function(data, index) {
|
|
var meta = chart.getDatasetMeta(index);
|
|
meta.hidden = true;
|
|
chart.update();
|
|
});
|
|
|
|
expect(chart.scales.x.min).toEqual(0);
|
|
expect(chart.scales.x.max).toEqual(1);
|
|
});
|
|
|
|
it('max and min value should be valid when min is set and all datasets are hidden', function() {
|
|
var barData = {
|
|
labels: ['S1', 'S2', 'S3'],
|
|
datasets: [{
|
|
label: 'dataset 1',
|
|
backgroundColor: '#382765',
|
|
data: [2500, 2000, 1500],
|
|
hidden: true,
|
|
}]
|
|
};
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: barData,
|
|
options: {
|
|
indexAxis: 'y',
|
|
scales: {
|
|
x: {
|
|
min: 20
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.x.min).toEqual(20);
|
|
expect(chart.scales.x.max).toEqual(21);
|
|
});
|
|
|
|
it('min settings should be used if set to zero', function() {
|
|
var barData = {
|
|
labels: ['S1', 'S2', 'S3'],
|
|
datasets: [{
|
|
label: 'dataset 1',
|
|
backgroundColor: '#382765',
|
|
data: [2500, 2000, 1500]
|
|
}]
|
|
};
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: barData,
|
|
options: {
|
|
indexAxis: 'y',
|
|
scales: {
|
|
x: {
|
|
min: 0,
|
|
max: 3000
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.x.min).toEqual(0);
|
|
});
|
|
|
|
it('max settings should be used if set to zero', function() {
|
|
var barData = {
|
|
labels: ['S1', 'S2', 'S3'],
|
|
datasets: [{
|
|
label: 'dataset 1',
|
|
backgroundColor: '#382765',
|
|
data: [-2500, -2000, -1500]
|
|
}]
|
|
};
|
|
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: barData,
|
|
options: {
|
|
indexAxis: 'y',
|
|
scales: {
|
|
x: {
|
|
min: -3000,
|
|
max: 0
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
expect(chart.scales.x.max).toEqual(0);
|
|
});
|
|
|
|
it('Should get correct pixel values when horizontal', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
data: [0.05, -25, 10, 15, 20, 25, 30, 35]
|
|
}]
|
|
},
|
|
options: {
|
|
indexAxis: 'y',
|
|
scales: {
|
|
x: {
|
|
type: 'linear',
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
var start = chart.chartArea.left;
|
|
var end = chart.chartArea.right;
|
|
var min = -30;
|
|
var max = 40;
|
|
var scale = chart.scales.x;
|
|
|
|
expect(scale.getPixelForValue(max)).toBeCloseToPixel(end);
|
|
expect(scale.getPixelForValue(min)).toBeCloseToPixel(start);
|
|
expect(scale.getValueForPixel(end)).toBeCloseTo(max, 4);
|
|
expect(scale.getValueForPixel(start)).toBeCloseTo(min, 4);
|
|
|
|
scale.options.reverse = true;
|
|
chart.update();
|
|
|
|
start = chart.chartArea.left;
|
|
end = chart.chartArea.right;
|
|
|
|
expect(scale.getPixelForValue(max)).toBeCloseToPixel(start);
|
|
expect(scale.getPixelForValue(min)).toBeCloseToPixel(end);
|
|
expect(scale.getValueForPixel(end)).toBeCloseTo(min, 4);
|
|
expect(scale.getValueForPixel(start)).toBeCloseTo(max, 4);
|
|
});
|
|
|
|
it('Should get correct pixel values when vertical', function() {
|
|
var chart = window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
datasets: [{
|
|
data: [0.05, -25, 10, 15, 20, 25, 30, 35]
|
|
}]
|
|
},
|
|
options: {
|
|
scales: {
|
|
y: {
|
|
type: 'linear',
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
var start = chart.chartArea.bottom;
|
|
var end = chart.chartArea.top;
|
|
var min = -30;
|
|
var max = 40;
|
|
var scale = chart.scales.y;
|
|
|
|
expect(scale.getPixelForValue(max)).toBeCloseToPixel(end);
|
|
expect(scale.getPixelForValue(min)).toBeCloseToPixel(start);
|
|
expect(scale.getValueForPixel(end)).toBeCloseTo(max, 4);
|
|
expect(scale.getValueForPixel(start)).toBeCloseTo(min, 4);
|
|
|
|
scale.options.reverse = true;
|
|
chart.update();
|
|
|
|
start = chart.chartArea.bottom;
|
|
end = chart.chartArea.top;
|
|
|
|
expect(scale.getPixelForValue(max)).toBeCloseToPixel(start);
|
|
expect(scale.getPixelForValue(min)).toBeCloseToPixel(end);
|
|
expect(scale.getValueForPixel(end)).toBeCloseTo(min, 4);
|
|
expect(scale.getValueForPixel(start)).toBeCloseTo(max, 4);
|
|
});
|
|
|
|
it('should not throw errors when chart size is negative', function() {
|
|
function createChart() {
|
|
return window.acquireChart({
|
|
type: 'bar',
|
|
data: {
|
|
labels: [0, 1, 2, 3, 4, 5, 6, 7, '7+'],
|
|
datasets: [{
|
|
data: [29.05, 4, 15.69, 11.69, 2.84, 4, 0, 3.84, 4],
|
|
}],
|
|
},
|
|
options: {
|
|
plugins: false,
|
|
layout: {
|
|
padding: {top: 30, left: 1, right: 1, bottom: 1}
|
|
}
|
|
}
|
|
}, {
|
|
canvas: {
|
|
height: 0,
|
|
width: 0
|
|
}
|
|
});
|
|
}
|
|
|
|
expect(createChart).not.toThrow();
|
|
});
|
|
});
|