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https://github.com/chartjs/Chart.js.git
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356 lines
10 KiB
JavaScript
356 lines
10 KiB
JavaScript
describe('Chart.controllers.doughnut', function() {
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it('should be constructed', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: []
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}],
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labels: []
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}
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});
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var meta = chart.getDatasetMeta(0);
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expect(meta.type).toBe('doughnut');
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expect(meta.controller).not.toBe(undefined);
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expect(meta.controller.index).toBe(0);
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expect(meta.data).toEqual([]);
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meta.controller.updateIndex(1);
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expect(meta.controller.index).toBe(1);
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});
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it('should create arc elements for each data item during initialization', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: [10, 15, 0, 4]
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}],
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labels: []
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}
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});
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var meta = chart.getDatasetMeta(0);
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expect(meta.data.length).toBe(4); // 4 rectangles created
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expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[2] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[3] instanceof Chart.elements.Arc).toBe(true);
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});
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it('should set the innerRadius to 0 if the config option is 0', function() {
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var chart = window.acquireChart({
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type: 'pie',
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data: {
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datasets: [{
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data: [10, 15, 0, 4]
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}],
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labels: []
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}
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});
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expect(chart.innerRadius).toBe(0);
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});
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it ('should reset and update elements', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: [1, 2, 3, 4],
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hidden: true
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}, {
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data: [5, 6, 0, 7]
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}, {
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data: [8, 9, 10, 11]
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}],
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labels: ['label0', 'label1', 'label2', 'label3']
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},
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options: {
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legend: false,
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title: false,
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animation: {
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animateRotate: true,
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animateScale: false
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},
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cutoutPercentage: 50,
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rotation: Math.PI * -0.5,
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circumference: Math.PI * 2.0,
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elements: {
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arc: {
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 0, 255)',
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borderWidth: 2
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}
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}
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}
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});
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var meta = chart.getDatasetMeta(1);
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meta.controller.reset(); // reset first
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expect(meta.data.length).toBe(4);
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[
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{c: 0},
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{c: 0},
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{c: 0},
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{c: 0}
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].forEach(function(expected, i) {
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expect(meta.data[i]._model.x).toBeCloseToPixel(256);
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expect(meta.data[i]._model.y).toBeCloseToPixel(256);
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expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(254);
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expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(190);
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expect(meta.data[i]._model.circumference).toBeCloseTo(expected.c, 8);
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expect(meta.data[i]._model).toEqual(jasmine.objectContaining({
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startAngle: Math.PI * -0.5,
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endAngle: Math.PI * -0.5,
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label: chart.data.labels[i],
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 0, 255)',
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borderWidth: 2
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}));
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});
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chart.update();
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[
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{c: 1.7453292519, s: -1.5707963267, e: 0.1745329251},
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{c: 2.0943951023, s: 0.1745329251, e: 2.2689280275},
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{c: 0, s: 2.2689280275, e: 2.2689280275},
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{c: 2.4434609527, s: 2.2689280275, e: 4.7123889803}
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].forEach(function(expected, i) {
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expect(meta.data[i]._model.x).toBeCloseToPixel(256);
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expect(meta.data[i]._model.y).toBeCloseToPixel(256);
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expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(254);
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expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(190);
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expect(meta.data[i]._model.circumference).toBeCloseTo(expected.c, 8);
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expect(meta.data[i]._model.startAngle).toBeCloseTo(expected.s, 8);
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expect(meta.data[i]._model.endAngle).toBeCloseTo(expected.e, 8);
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expect(meta.data[i]._model).toEqual(jasmine.objectContaining({
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label: chart.data.labels[i],
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 0, 255)',
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borderWidth: 2
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}));
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});
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// Change the amount of data and ensure that arcs are updated accordingly
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chart.data.datasets[1].data = [1, 2]; // remove 2 elements from dataset 0
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chart.update();
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expect(meta.data.length).toBe(2);
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expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
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// Add data
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chart.data.datasets[1].data = [1, 2, 3, 4];
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chart.update();
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expect(meta.data.length).toBe(4);
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expect(meta.data[0] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[1] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[2] instanceof Chart.elements.Arc).toBe(true);
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expect(meta.data[3] instanceof Chart.elements.Arc).toBe(true);
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});
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it ('should rotate and limit circumference', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: [2, 4],
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hidden: true
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}, {
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data: [1, 3]
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}, {
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data: [1, 0]
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}],
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labels: ['label0', 'label1']
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},
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options: {
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legend: false,
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title: false,
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cutoutPercentage: 50,
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rotation: Math.PI,
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circumference: Math.PI * 0.5,
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elements: {
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arc: {
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 0, 255)',
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borderWidth: 2
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}
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}
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}
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});
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var meta = chart.getDatasetMeta(1);
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expect(meta.data.length).toBe(2);
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// Only startAngle, endAngle and circumference should be different.
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[
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{c: Math.PI / 8, s: Math.PI, e: Math.PI + Math.PI / 8},
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{c: 3 * Math.PI / 8, s: Math.PI + Math.PI / 8, e: Math.PI + Math.PI / 2}
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].forEach(function(expected, i) {
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expect(meta.data[i]._model.x).toBeCloseToPixel(510);
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expect(meta.data[i]._model.y).toBeCloseToPixel(510);
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expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(509);
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expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(381);
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expect(meta.data[i]._model.circumference).toBeCloseTo(expected.c, 8);
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expect(meta.data[i]._model.startAngle).toBeCloseTo(expected.s, 8);
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expect(meta.data[i]._model.endAngle).toBeCloseTo(expected.e, 8);
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});
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});
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it ('should draw all arcs', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: [10, 15, 0, 4]
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}],
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labels: ['label0', 'label1', 'label2', 'label3']
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}
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});
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var meta = chart.getDatasetMeta(0);
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spyOn(meta.data[0], 'draw');
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spyOn(meta.data[1], 'draw');
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spyOn(meta.data[2], 'draw');
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spyOn(meta.data[3], 'draw');
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chart.update();
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expect(meta.data[0].draw.calls.count()).toBe(1);
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expect(meta.data[1].draw.calls.count()).toBe(1);
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expect(meta.data[2].draw.calls.count()).toBe(1);
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expect(meta.data[3].draw.calls.count()).toBe(1);
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});
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it ('should set the hover style of an arc', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: [10, 15, 0, 4]
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}],
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labels: ['label0', 'label1', 'label2', 'label3']
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},
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options: {
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elements: {
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arc: {
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 0, 255)',
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borderWidth: 2,
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}
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}
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}
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});
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var meta = chart.getDatasetMeta(0);
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var arc = meta.data[0];
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meta.controller.setHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(230, 0, 0)');
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expect(arc._model.borderColor).toBe('rgb(0, 0, 230)');
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expect(arc._model.borderWidth).toBe(2);
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// Set a dataset style to take precedence
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chart.data.datasets[0].hoverBackgroundColor = 'rgb(9, 9, 9)';
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chart.data.datasets[0].hoverBorderColor = 'rgb(18, 18, 18)';
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chart.data.datasets[0].hoverBorderWidth = 1.56;
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meta.controller.setHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(9, 9, 9)');
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expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
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expect(arc._model.borderWidth).toBe(1.56);
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// Dataset styles can be an array
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chart.data.datasets[0].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(9, 9, 9)'];
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chart.data.datasets[0].hoverBorderColor = ['rgb(18, 18, 18)'];
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chart.data.datasets[0].hoverBorderWidth = [0.1, 1.56];
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meta.controller.setHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(255, 255, 255)');
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expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
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expect(arc._model.borderWidth).toBe(0.1);
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// Element custom styles also work
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arc.custom = {
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hoverBackgroundColor: 'rgb(7, 7, 7)',
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hoverBorderColor: 'rgb(17, 17, 17)',
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hoverBorderWidth: 3.14159,
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};
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meta.controller.setHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(7, 7, 7)');
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expect(arc._model.borderColor).toBe('rgb(17, 17, 17)');
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expect(arc._model.borderWidth).toBe(3.14159);
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});
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it ('should unset the hover style of an arc', function() {
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var chart = window.acquireChart({
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type: 'doughnut',
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data: {
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datasets: [{
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data: [10, 15, 0, 4]
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}],
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labels: ['label0', 'label1', 'label2', 'label3']
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},
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options: {
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elements: {
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arc: {
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 0, 255)',
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borderWidth: 2,
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}
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}
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}
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});
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var meta = chart.getDatasetMeta(0);
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var arc = meta.data[0];
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meta.controller.removeHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(255, 0, 0)');
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expect(arc._model.borderColor).toBe('rgb(0, 0, 255)');
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expect(arc._model.borderWidth).toBe(2);
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// Set a dataset style to take precedence
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chart.data.datasets[0].backgroundColor = 'rgb(9, 9, 9)';
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chart.data.datasets[0].borderColor = 'rgb(18, 18, 18)';
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chart.data.datasets[0].borderWidth = 1.56;
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meta.controller.removeHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(9, 9, 9)');
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expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
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expect(arc._model.borderWidth).toBe(1.56);
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// Dataset styles can be an array
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chart.data.datasets[0].backgroundColor = ['rgb(255, 255, 255)', 'rgb(9, 9, 9)'];
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chart.data.datasets[0].borderColor = ['rgb(18, 18, 18)'];
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chart.data.datasets[0].borderWidth = [0.1, 1.56];
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meta.controller.removeHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(255, 255, 255)');
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expect(arc._model.borderColor).toBe('rgb(18, 18, 18)');
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expect(arc._model.borderWidth).toBe(0.1);
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// Element custom styles also work
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arc.custom = {
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backgroundColor: 'rgb(7, 7, 7)',
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borderColor: 'rgb(17, 17, 17)',
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borderWidth: 3.14159,
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};
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meta.controller.removeHoverStyle(arc);
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expect(arc._model.backgroundColor).toBe('rgb(7, 7, 7)');
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expect(arc._model.borderColor).toBe('rgb(17, 17, 17)');
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expect(arc._model.borderWidth).toBe(3.14159);
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});
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});
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