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https://github.com/chartjs/Chart.js.git
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919e50b9fc
* Generate ticks from small to large * Add note to migration guide
577 lines
14 KiB
JavaScript
577 lines
14 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('Chart.layouts', function() {
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describe('auto', jasmine.fixture.specs('core.layouts'));
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it('should be exposed through Chart.layouts', function() {
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expect(Chart.layouts).toBeDefined();
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expect(typeof Chart.layouts).toBe('object');
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expect(Chart.layouts.addBox).toBeDefined();
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expect(Chart.layouts.removeBox).toBeDefined();
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expect(Chart.layouts.configure).toBeDefined();
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expect(Chart.layouts.update).toBeDefined();
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});
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it('should fit a simple chart with 2 scales', 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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{data: [10, 5, 0, 25, 78, -10]}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(120);
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expect(chart.chartArea.left).toBeCloseToPixel(34);
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expect(chart.chartArea.right).toBeCloseToPixel(247);
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expect(chart.chartArea.top).toBeCloseToPixel(32);
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// Is xScale at the right spot
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expect(chart.scales.x.bottom).toBeCloseToPixel(150);
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expect(chart.scales.x.left).toBeCloseToPixel(34);
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expect(chart.scales.x.right).toBeCloseToPixel(247);
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expect(chart.scales.x.top).toBeCloseToPixel(120);
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expect(chart.scales.x.labelRotation).toBeCloseTo(0);
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// Is yScale at the right spot
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expect(chart.scales.y.bottom).toBeCloseToPixel(120);
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expect(chart.scales.y.left).toBeCloseToPixel(0);
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expect(chart.scales.y.right).toBeCloseToPixel(34);
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expect(chart.scales.y.top).toBeCloseToPixel(32);
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expect(chart.scales.y.labelRotation).toBeCloseTo(0);
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});
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it('should fit scales that are in the top and right positions', 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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{data: [10, 5, 0, 25, 78, -10]}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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position: 'top'
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},
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y: {
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type: 'linear',
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position: 'right'
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}
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}
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(142);
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expect(chart.chartArea.left).toBeCloseToPixel(3);
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expect(chart.chartArea.right).toBeCloseToPixel(216);
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expect(chart.chartArea.top).toBeCloseToPixel(62);
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// Is xScale at the right spot
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expect(chart.scales.x.bottom).toBeCloseToPixel(62);
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expect(chart.scales.x.left).toBeCloseToPixel(3);
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expect(chart.scales.x.right).toBeCloseToPixel(216);
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expect(chart.scales.x.top).toBeCloseToPixel(32);
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expect(chart.scales.x.labelRotation).toBeCloseTo(0);
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// Is yScale at the right spot
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expect(chart.scales.y.bottom).toBeCloseToPixel(142);
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expect(chart.scales.y.left).toBeCloseToPixel(216);
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expect(chart.scales.y.right).toBeCloseToPixel(250);
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expect(chart.scales.y.top).toBeCloseToPixel(62);
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expect(chart.scales.y.labelRotation).toBeCloseTo(0);
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});
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it('should fit scales that overlap the chart area', function() {
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var chart = window.acquireChart({
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type: 'radar',
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data: {
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datasets: [{
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data: [10, 5, 0, 25, 78, -10]
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}, {
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data: [-19, -20, 0, -99, -50, 0]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(512);
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expect(chart.chartArea.left).toBeCloseToPixel(0);
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expect(chart.chartArea.right).toBeCloseToPixel(512);
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expect(chart.chartArea.top).toBeCloseToPixel(32);
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var scale = chart.scales.r;
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expect(scale.bottom).toBeCloseToPixel(512);
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expect(scale.left).toBeCloseToPixel(0);
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expect(scale.right).toBeCloseToPixel(512);
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expect(scale.top).toBeCloseToPixel(32);
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expect(scale.width).toBeCloseToPixel(512);
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expect(scale.height).toBeCloseToPixel(480);
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});
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it('should fit multiple axes in the same position', 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, 25, 78, -10]
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}, {
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yAxisID: 'y2',
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data: [-19, -20, 0, -99, -50, 0]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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},
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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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}
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}
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(118);
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expect(chart.chartArea.left).toBeCloseToPixel(73);
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expect(chart.chartArea.right).toBeCloseToPixel(247);
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expect(chart.chartArea.top).toBeCloseToPixel(32);
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// Is xScale at the right spot
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expect(chart.scales.x.bottom).toBeCloseToPixel(150);
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expect(chart.scales.x.left).toBeCloseToPixel(73);
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expect(chart.scales.x.right).toBeCloseToPixel(247);
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expect(chart.scales.x.top).toBeCloseToPixel(118);
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expect(chart.scales.x.labelRotation).toBeCloseTo(40, -1);
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// Are yScales at the right spot
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expect(chart.scales.y.bottom).toBeCloseToPixel(118);
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expect(chart.scales.y.left).toBeCloseToPixel(41);
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expect(chart.scales.y.right).toBeCloseToPixel(73);
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expect(chart.scales.y.top).toBeCloseToPixel(32);
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expect(chart.scales.y.labelRotation).toBeCloseTo(0);
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expect(chart.scales.y2.bottom).toBeCloseToPixel(118);
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expect(chart.scales.y2.left).toBeCloseToPixel(0);
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expect(chart.scales.y2.right).toBeCloseToPixel(41);
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expect(chart.scales.y2.top).toBeCloseToPixel(32);
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expect(chart.scales.y2.labelRotation).toBeCloseTo(0);
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});
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it ('should fit a full width box correctly', 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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xAxisID: 'x',
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data: [10, 5, 0, 25, 78, -10]
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}, {
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xAxisID: 'x2',
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data: [-19, -20, 0, -99, -50, 0]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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offset: false
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},
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x2: {
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type: 'category',
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position: 'top',
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fullWidth: true,
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offset: false
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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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expect(chart.chartArea.bottom).toBeCloseToPixel(484);
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expect(chart.chartArea.left).toBeCloseToPixel(40);
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expect(chart.chartArea.right).toBeCloseToPixel(496);
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expect(chart.chartArea.top).toBeCloseToPixel(62);
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// Are xScales at the right spot
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expect(chart.scales.x.bottom).toBeCloseToPixel(512);
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expect(chart.scales.x.left).toBeCloseToPixel(40);
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expect(chart.scales.x.right).toBeCloseToPixel(496);
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expect(chart.scales.x.top).toBeCloseToPixel(484);
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expect(chart.scales.x2.bottom).toBeCloseToPixel(62);
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expect(chart.scales.x2.left).toBeCloseToPixel(0);
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expect(chart.scales.x2.right).toBeCloseToPixel(512);
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expect(chart.scales.x2.top).toBeCloseToPixel(32);
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// Is yScale at the right spot
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expect(chart.scales.y.bottom).toBeCloseToPixel(484);
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expect(chart.scales.y.left).toBeCloseToPixel(0);
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expect(chart.scales.y.right).toBeCloseToPixel(40);
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expect(chart.scales.y.top).toBeCloseToPixel(62);
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});
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describe('padding settings', function() {
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it('should apply a single padding to all dimensions', 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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data: [10, 5, 0, 25, 78, -10]
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}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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display: false
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},
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y: {
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type: 'linear',
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display: false
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}
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},
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legend: {
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display: false
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},
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title: {
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display: false
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},
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layout: {
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padding: 10
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}
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(140);
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expect(chart.chartArea.left).toBeCloseToPixel(10);
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expect(chart.chartArea.right).toBeCloseToPixel(240);
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expect(chart.chartArea.top).toBeCloseToPixel(10);
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});
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it('should apply padding in all positions', 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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data: [10, 5, 0, 25, 78, -10]
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}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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display: false
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},
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y: {
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type: 'linear',
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display: false
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}
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},
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legend: {
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display: false
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},
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title: {
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display: false
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},
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layout: {
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padding: {
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left: 5,
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right: 15,
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top: 8,
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bottom: 12
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}
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}
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(138);
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expect(chart.chartArea.left).toBeCloseToPixel(5);
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expect(chart.chartArea.right).toBeCloseToPixel(235);
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expect(chart.chartArea.top).toBeCloseToPixel(8);
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});
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it('should default to 0 padding if no dimensions specified', 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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data: [10, 5, 0, 25, 78, -10]
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}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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display: false
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},
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y: {
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type: 'linear',
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display: false
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}
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},
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legend: {
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display: false
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},
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title: {
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display: false
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},
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layout: {
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padding: {}
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}
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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expect(chart.chartArea.bottom).toBeCloseToPixel(150);
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expect(chart.chartArea.left).toBeCloseToPixel(0);
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expect(chart.chartArea.right).toBeCloseToPixel(250);
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expect(chart.chartArea.top).toBeCloseToPixel(0);
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});
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});
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describe('ordering by weight', function() {
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it('should keep higher weights outside', 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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data: [10, 5, 0, 25, 78, -10]
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}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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},
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options: {
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legend: {
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display: true,
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position: 'left',
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},
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title: {
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display: true,
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position: 'bottom',
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},
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},
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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var xAxis = chart.scales.x;
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var yAxis = chart.scales.y;
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var legend = chart.legend;
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var title = chart.titleBlock;
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expect(yAxis.left).toBe(legend.right);
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expect(xAxis.bottom).toBe(title.top);
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});
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it('should correctly set weights of scales and order them', 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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data: [10, 5, 0, 25, 78, -10]
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}
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],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5', 'tick6']
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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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position: 'bottom',
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display: true,
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weight: 1
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},
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x1: {
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type: 'category',
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position: 'bottom',
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display: true,
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weight: 2
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},
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x2: {
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type: 'category',
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position: 'bottom',
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display: true
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},
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x3: {
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type: 'category',
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display: true,
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position: 'top',
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weight: 1
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},
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x4: {
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type: 'category',
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display: true,
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position: 'top',
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weight: 2
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},
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y: {
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type: 'linear',
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display: true,
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weight: 1
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},
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y1: {
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type: 'linear',
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position: 'left',
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display: true,
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weight: 2
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},
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y2: {
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type: 'linear',
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position: 'left',
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display: true
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},
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y3: {
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type: 'linear',
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display: true,
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position: 'right',
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weight: 1
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},
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y4: {
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type: 'linear',
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display: true,
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position: 'right',
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weight: 2
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}
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}
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}
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}, {
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canvas: {
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height: 150,
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width: 250
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}
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});
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var xScale0 = chart.scales.x;
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var xScale1 = chart.scales.x1;
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var xScale2 = chart.scales.x2;
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var xScale3 = chart.scales.x3;
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var xScale4 = chart.scales.x4;
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var yScale0 = chart.scales.y;
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var yScale1 = chart.scales.y1;
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var yScale2 = chart.scales.y2;
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var yScale3 = chart.scales.y3;
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var yScale4 = chart.scales.y4;
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expect(xScale0.weight).toBe(1);
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expect(xScale1.weight).toBe(2);
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expect(xScale2.weight).toBe(0);
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expect(xScale3.weight).toBe(1);
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expect(xScale4.weight).toBe(2);
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expect(yScale0.weight).toBe(1);
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expect(yScale1.weight).toBe(2);
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expect(yScale2.weight).toBe(0);
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expect(yScale3.weight).toBe(1);
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expect(yScale4.weight).toBe(2);
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var isOrderCorrect = false;
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// bottom axes
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isOrderCorrect = xScale2.top < xScale0.top && xScale0.top < xScale1.top;
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expect(isOrderCorrect).toBe(true);
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// top axes
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isOrderCorrect = xScale4.top < xScale3.top;
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expect(isOrderCorrect).toBe(true);
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// left axes
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isOrderCorrect = yScale1.left < yScale0.left && yScale0.left < yScale2.left;
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expect(isOrderCorrect).toBe(true);
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// right axes
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isOrderCorrect = yScale3.left < yScale4.left;
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expect(isOrderCorrect).toBe(true);
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});
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});
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describe('box sizing', function() {
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it('should correctly compute y-axis width to fit labels', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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labels: ['tick 1', 'tick 2', 'tick 3', 'tick 4', 'tick 5'],
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datasets: [{
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data: [0, 2.25, 1.5, 1.25, 2.5]
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}],
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},
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options: {
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|
legend: {
|
|
display: false,
|
|
},
|
|
},
|
|
}, {
|
|
canvas: {
|
|
height: 256,
|
|
width: 256
|
|
}
|
|
});
|
|
var yAxis = chart.scales.y;
|
|
|
|
// issue #4441: y-axis labels partially hidden.
|
|
// minimum horizontal space required to fit labels
|
|
expect(yAxis.width).toBeCloseToPixel(33);
|
|
expect(getLabels(yAxis)).toEqual(['0', '0.5', '1.0', '1.5', '2.0', '2.5']);
|
|
});
|
|
});
|
|
});
|