mirror of
https://github.com/chartjs/Chart.js.git
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411 lines
11 KiB
JavaScript
411 lines
11 KiB
JavaScript
describe('Chart.controllers.doughnut', function() {
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describe('auto', jasmine.fixture.specs('controller.doughnut'));
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it('should be registered as dataset controller', function() {
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expect(typeof Chart.controllers.doughnut).toBe('function');
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expect(Chart.controllers.doughnut).toBe(Chart.controllers.pie);
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});
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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(256);
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expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(192);
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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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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(256);
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expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(192);
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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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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(512);
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expect(meta.data[i]._model.y).toBeCloseToPixel(512);
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expect(meta.data[i]._model.outerRadius).toBeCloseToPixel(512);
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expect(meta.data[i]._model.innerRadius).toBeCloseToPixel(384);
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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 treat negative values as positive', 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, -3]
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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(0);
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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.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 calculate radiuses based on the border widths of the visible outermost dataset', 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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borderWidth: 4,
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hidden: true
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}, {
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data: [1, 3],
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borderWidth: 8
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}, {
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data: [1, 0],
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borderWidth: 12
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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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}
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});
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chart.update();
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expect(chart.chartArea.bottom - chart.chartArea.top).toBe(512);
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expect(chart.borderWidth).toBe(8);
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expect(chart.outerRadius).toBe(252);
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expect(chart.innerRadius).toBe(126);
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expect(chart.radiusLength).toBe(63);
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var controller = chart.getDatasetMeta(0).controller;
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expect(controller.getMaxBorderWidth()).toBe(8);
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expect(controller.outerRadius).toBe(252);
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expect(controller.innerRadius).toBe(189);
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controller = chart.getDatasetMeta(1).controller;
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expect(controller.getMaxBorderWidth()).toBe(8);
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expect(controller.outerRadius).toBe(252);
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expect(controller.innerRadius).toBe(189);
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controller = chart.getDatasetMeta(2).controller;
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expect(controller.getMaxBorderWidth()).toBe(8);
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expect(controller.outerRadius).toBe(189);
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expect(controller.innerRadius).toBe(126);
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});
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describe('Interactions', function() {
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beforeEach(function() {
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this.chart = window.acquireChart({
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type: 'doughnut',
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data: {
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labels: ['label1', 'label2', 'label3', 'label4'],
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datasets: [{
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data: [10, 15, 0, 4]
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}]
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},
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options: {
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cutoutPercentage: 0,
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elements: {
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arc: {
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backgroundColor: 'rgb(100, 150, 200)',
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borderColor: 'rgb(50, 100, 150)',
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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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});
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it ('should handle default hover styles', function() {
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var chart = this.chart;
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var arc = chart.getDatasetMeta(0).data[0];
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jasmine.triggerMouseEvent(chart, 'mousemove', arc);
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expect(arc._model.backgroundColor).toBe('rgb(49, 135, 221)');
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expect(arc._model.borderColor).toBe('rgb(22, 89, 156)');
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expect(arc._model.borderWidth).toBe(2);
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jasmine.triggerMouseEvent(chart, 'mouseout', arc);
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expect(arc._model.backgroundColor).toBe('rgb(100, 150, 200)');
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expect(arc._model.borderColor).toBe('rgb(50, 100, 150)');
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expect(arc._model.borderWidth).toBe(2);
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});
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it ('should handle hover styles defined via dataset properties', function() {
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var chart = this.chart;
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var arc = chart.getDatasetMeta(0).data[0];
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Chart.helpers.merge(chart.data.datasets[0], {
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hoverBackgroundColor: 'rgb(200, 100, 150)',
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hoverBorderColor: 'rgb(150, 50, 100)',
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hoverBorderWidth: 8.4,
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});
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chart.update();
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jasmine.triggerMouseEvent(chart, 'mousemove', arc);
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expect(arc._model.backgroundColor).toBe('rgb(200, 100, 150)');
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expect(arc._model.borderColor).toBe('rgb(150, 50, 100)');
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expect(arc._model.borderWidth).toBe(8.4);
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jasmine.triggerMouseEvent(chart, 'mouseout', arc);
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expect(arc._model.backgroundColor).toBe('rgb(100, 150, 200)');
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expect(arc._model.borderColor).toBe('rgb(50, 100, 150)');
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expect(arc._model.borderWidth).toBe(2);
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});
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it ('should handle hover styles defined via element options', function() {
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var chart = this.chart;
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var arc = chart.getDatasetMeta(0).data[0];
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Chart.helpers.merge(chart.options.elements.arc, {
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hoverBackgroundColor: 'rgb(200, 100, 150)',
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hoverBorderColor: 'rgb(150, 50, 100)',
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hoverBorderWidth: 8.4,
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});
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chart.update();
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jasmine.triggerMouseEvent(chart, 'mousemove', arc);
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expect(arc._model.backgroundColor).toBe('rgb(200, 100, 150)');
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expect(arc._model.borderColor).toBe('rgb(150, 50, 100)');
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expect(arc._model.borderWidth).toBe(8.4);
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jasmine.triggerMouseEvent(chart, 'mouseout', arc);
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expect(arc._model.backgroundColor).toBe('rgb(100, 150, 200)');
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expect(arc._model.borderColor).toBe('rgb(50, 100, 150)');
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expect(arc._model.borderWidth).toBe(2);
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});
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});
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});
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