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421 lines
10 KiB
421 lines
10 KiB
// Tests for the radial linear scale used by the polar area and radar charts
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describe('Test the radial linear scale', function() {
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var chartInstance;
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beforeEach(function() {
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window.addDefaultMatchers(jasmine);
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});
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afterEach(function() {
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if (chartInstance) {
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releaseChart(chartInstance);
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}
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});
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it('Should register the constructor with the scale service', function() {
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var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
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expect(Constructor).not.toBe(undefined);
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expect(typeof Constructor).toBe('function');
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});
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it('Should have the correct default config', function() {
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var defaultConfig = Chart.scaleService.getScaleDefaults('radialLinear');
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expect(defaultConfig).toEqual({
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angleLines: {
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display: true,
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color: "rgba(0, 0, 0, 0.1)",
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lineWidth: 1
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},
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animate: true,
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display: true,
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gridLines: {
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color: "rgba(0, 0, 0, 0.1)",
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drawOnChartArea: true,
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drawTicks: true,
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tickMarkLength: 10,
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lineWidth: 1,
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offsetGridLines: false,
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display: true,
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zeroLineColor: "rgba(0,0,0,0.25)",
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zeroLineWidth: 1,
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},
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lineArc: false,
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pointLabels: {
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fontSize: 10,
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callback: defaultConfig.pointLabels.callback, // make this nicer, then check explicitly below
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},
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position: "chartArea",
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scaleLabel: {
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labelString: '',
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display: false,
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},
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ticks: {
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backdropColor: "rgba(255,255,255,0.75)",
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backdropPaddingY: 2,
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backdropPaddingX: 2,
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beginAtZero: false,
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maxRotation: 50,
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mirror: false,
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padding: 10,
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reverse: false,
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showLabelBackdrop: true,
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display: true,
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callback: defaultConfig.ticks.callback, // make this nicer, then check explicitly below
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autoSkip: true,
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autoSkipPadding: 0
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},
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});
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// Is this actually a function
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expect(defaultConfig.ticks.callback).toEqual(jasmine.any(Function));
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expect(defaultConfig.pointLabels.callback).toEqual(jasmine.any(Function));
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});
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it('Should correctly determine the max & min data values', function() {
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chartInstance = 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, -5, 78, -100]
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}, {
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data: [150]
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
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},
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options: {
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scales: {
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}
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}
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});
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expect(chartInstance.scale.min).toBe(-100);
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expect(chartInstance.scale.max).toBe(150);
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});
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it('Should correctly determine the max & min of string data values', function() {
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chartInstance = 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', '-5', '78', '-100']
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}, {
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data: ['150']
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
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},
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options: {
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scales: {
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}
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}
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});
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expect(chartInstance.scale.min).toBe(-100);
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expect(chartInstance.scale.max).toBe(150);
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});
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it('Should correctly determine the max & min data values when there are hidden datasets', function() {
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chartInstance = 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', '-5', '78', '-100']
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}, {
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data: ['150']
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}, {
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data: [1000],
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hidden: true
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
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},
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options: {
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scales: {
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}
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}
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});
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expect(chartInstance.scale.min).toBe(-100);
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expect(chartInstance.scale.max).toBe(150);
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});
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it('Should correctly determine the max & min data values when there is NaN data', function() {
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chartInstance = window.acquireChart({
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type: 'radar',
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data: {
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datasets: [{
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data: [50, 60, NaN, 70, null, undefined]
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
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},
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options: {
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scales: {
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}
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}
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});
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expect(chartInstance.scale.min).toBe(50);
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expect(chartInstance.scale.max).toBe(70);
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});
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it('Should ensure that the scale has a max and min that are not equal', function() {
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var scaleID = 'myScale';
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var mockData = {
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datasets: [],
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labels: []
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};
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var mockContext = window.createMockContext();
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var Constructor = Chart.scaleService.getScaleConstructor('radialLinear');
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var scale = new Constructor({
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ctx: mockContext,
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options: Chart.scaleService.getScaleDefaults('radialLinear'), // use default config for scale
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chart: {
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data: mockData
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},
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id: scaleID,
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});
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scale.update(200, 300);
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expect(scale.min).toBe(-1);
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expect(scale.max).toBe(1);
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});
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it('Should use the suggestedMin and suggestedMax options', function() {
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chartInstance = window.acquireChart({
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type: 'radar',
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data: {
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datasets: [{
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data: [1, 1, 1, 2, 1, 0]
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
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},
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options: {
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scale: {
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ticks: {
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suggestedMin: -10,
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suggestedMax: 10
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}
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}
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}
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});
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expect(chartInstance.scale.min).toBe(-10);
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expect(chartInstance.scale.max).toBe(10);
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});
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it('Should use the min and max options', function() {
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chartInstance = window.acquireChart({
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type: 'radar',
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data: {
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datasets: [{
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data: [1, 1, 1, 2, 1, 0]
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5', 'label6']
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},
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options: {
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scale: {
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ticks: {
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min: -1010,
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max: 1010
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}
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}
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}
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});
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expect(chartInstance.scale.min).toBe(-1010);
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expect(chartInstance.scale.max).toBe(1010);
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expect(chartInstance.scale.ticks).toEqual(['-1010', '-1000', '-500', '0', '500', '1000', '1010']);
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});
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it('should forcibly include 0 in the range if the beginAtZero option is used', function() {
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chartInstance = window.acquireChart({
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type: 'radar',
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data: {
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datasets: [{
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data: [20, 30, 40, 50]
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4']
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},
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options: {
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scale: {
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ticks: {
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beginAtZero: false
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}
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}
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}
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});
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expect(chartInstance.scale.ticks).toEqual(['20', '25', '30', '35', '40', '45', '50']);
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chartInstance.scale.options.ticks.beginAtZero = true;
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chartInstance.update();
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expect(chartInstance.scale.ticks).toEqual(['0', '5', '10', '15', '20', '25', '30', '35', '40', '45', '50']);
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chartInstance.data.datasets[0].data = [-20, -30, -40, -50];
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chartInstance.update();
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expect(chartInstance.scale.ticks).toEqual(['-50', '-45', '-40', '-35', '-30', '-25', '-20', '-15', '-10', '-5', '0']);
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chartInstance.scale.options.ticks.beginAtZero = false;
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chartInstance.update();
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expect(chartInstance.scale.ticks).toEqual(['-50', '-45', '-40', '-35', '-30', '-25', '-20']);
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});
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it('Should generate tick marks in the correct order in reversed mode', function() {
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chartInstance = 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]
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}],
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labels: ['lablel1', 'label2', 'label3', 'label4', 'label5']
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},
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options: {
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scale: {
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ticks: {
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reverse: true
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}
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}
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}
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});
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expect(chartInstance.scale.ticks).toEqual(['80', '70', '60', '50', '40', '30', '20', '10', '0']);
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expect(chartInstance.scale.start).toBe(80);
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expect(chartInstance.scale.end).toBe(0);
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});
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it('Should build labels using the user supplied callback', function() {
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chartInstance = 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]
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}],
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labels: ['label1', 'label2', 'label3', 'label4', 'label5']
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},
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options: {
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scale: {
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ticks: {
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callback: function(value, index) {
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return index.toString();
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}
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}
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}
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}
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});
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expect(chartInstance.scale.ticks).toEqual(['0', '1', '2', '3', '4', '5', '6', '7', '8']);
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expect(chartInstance.scale.pointLabels).toEqual(['label1', 'label2', 'label3', 'label4', 'label5']);
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});
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it('Should build point labels using the user supplied callback', function() {
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chartInstance = 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]
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}],
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labels: ['label1', 'label2', 'label3', 'label4', 'label5']
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},
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options: {
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scale: {
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pointLabels: {
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callback: function(value, index) {
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return index.toString();
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}
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}
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}
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}
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});
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expect(chartInstance.scale.pointLabels).toEqual(['0', '1', '2', '3', '4']);
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});
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it('should correctly set the center point', function() {
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chartInstance = 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]
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}],
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labels: ['label1', 'label2', 'label3', 'label4', 'label5']
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},
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options: {
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scale: {
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pointLabels: {
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callback: function(value, index) {
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return index.toString();
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}
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}
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}
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}
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});
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expect(chartInstance.scale.drawingArea).toBe(225);
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expect(chartInstance.scale.xCenter).toBe(256);
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expect(chartInstance.scale.yCenter).toBe(272);
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});
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it('should correctly get the label for a given data index', function() {
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chartInstance = 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]
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}],
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labels: ['label1', 'label2', 'label3', 'label4', 'label5']
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},
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options: {
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scale: {
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pointLabels: {
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callback: function(value, index) {
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return index.toString();
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}
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}
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}
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}
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});
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expect(chartInstance.scale.getLabelForIndex(1, 0)).toBe(5);
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});
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it('should get the correct distance from the center point', function() {
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chartInstance = 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]
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}],
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labels: ['label1', 'label2', 'label3', 'label4', 'label5']
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},
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options: {
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scale: {
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pointLabels: {
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callback: function(value, index) {
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return index.toString();
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}
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}
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}
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}
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});
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expect(chartInstance.scale.getDistanceFromCenterForValue(chartInstance.scale.min)).toBe(0);
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expect(chartInstance.scale.getDistanceFromCenterForValue(chartInstance.scale.max)).toBe(225);
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expect(chartInstance.scale.getPointPositionForValue(1, 5)).toEqual({
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x: 269,
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y: 268,
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});
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chartInstance.scale.options.reverse = true;
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chartInstance.update();
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expect(chartInstance.scale.getDistanceFromCenterForValue(chartInstance.scale.min)).toBe(225);
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expect(chartInstance.scale.getDistanceFromCenterForValue(chartInstance.scale.max)).toBe(0);
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});
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});
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