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c216c0af76
`karma.conf.ci.js` has been merged into `karma.conf.js` for local testing consistency: `gulp unittestWatch` has been replaced by `gulp unittest --watch` and thus use exactly the same config file. Upgrade to latest jasmine and karma packages and remove deprecated `gulp-karma` dependency (directly use `karma.Server` in gulp). Split `test/mockContext.js` into smaller `test/jasmine.*` modules to make easier unit tests maintenance and finally, move all `*.test.js` files under the `test/specs` folder.
387 lines
9.9 KiB
JavaScript
387 lines
9.9 KiB
JavaScript
// Test the category scale
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describe('Category scale tests', function() {
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it('Should register the constructor with the scale service', function() {
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var Constructor = Chart.scaleService.getScaleConstructor('category');
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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('category');
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expect(defaultConfig).toEqual({
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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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drawBorder: true,
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drawOnChartArea: true,
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drawTicks: true, // draw ticks extending towards the label
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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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borderDash: [],
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borderDashOffset: 0.0
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},
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position: 'bottom',
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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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beginAtZero: false,
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minRotation: 0,
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maxRotation: 50,
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mirror: false,
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padding: 0,
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reverse: false,
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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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labelOffset: 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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});
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it('Should generate ticks from the data labels', function() {
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var scaleID = 'myScale';
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var mockData = {
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datasets: [{
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yAxisID: scaleID,
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data: [10, 5, 0, 25, 78]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
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};
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
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var Constructor = Chart.scaleService.getScaleConstructor('category');
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var scale = new Constructor({
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ctx: {},
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options: config,
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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.determineDataLimits();
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scale.buildTicks();
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expect(scale.ticks).toEqual(mockData.labels);
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});
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it('Should generate ticks from the data xLabels', function() {
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var scaleID = 'myScale';
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var mockData = {
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datasets: [{
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yAxisID: scaleID,
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data: [10, 5, 0, 25, 78]
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}],
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xLabels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
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};
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
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var Constructor = Chart.scaleService.getScaleConstructor('category');
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var scale = new Constructor({
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ctx: {},
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options: config,
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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.determineDataLimits();
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scale.buildTicks();
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expect(scale.ticks).toEqual(mockData.xLabels);
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});
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it('Should generate ticks from the data xLabels', function() {
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var scaleID = 'myScale';
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var mockData = {
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datasets: [{
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yAxisID: scaleID,
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data: [10, 5, 0, 25, 78]
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}],
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yLabels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
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};
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
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config.position = 'left'; // y axis
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var Constructor = Chart.scaleService.getScaleConstructor('category');
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var scale = new Constructor({
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ctx: {},
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options: config,
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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.determineDataLimits();
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scale.buildTicks();
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expect(scale.ticks).toEqual(mockData.yLabels);
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});
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it ('should get the correct label for the index', function() {
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var scaleID = 'myScale';
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var mockData = {
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datasets: [{
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yAxisID: scaleID,
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data: [10, 5, 0, 25, 78]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5']
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};
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var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('category'));
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var Constructor = Chart.scaleService.getScaleConstructor('category');
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var scale = new Constructor({
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ctx: {},
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options: config,
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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.determineDataLimits();
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scale.buildTicks();
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expect(scale.getLabelForIndex(1)).toBe('tick2');
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});
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it ('Should get the correct pixel for a value when horizontal', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: [10, 5, 0, 25, 78]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'category',
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position: 'bottom'
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}],
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yAxes: [{
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id: 'yScale0',
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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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var xScale = chart.scales.xScale0;
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expect(xScale.getPixelForValue(0, 0, 0, false)).toBeCloseToPixel(23);
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expect(xScale.getPixelForValue(0, 0, 0, true)).toBeCloseToPixel(23);
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expect(xScale.getValueForPixel(33)).toBe(0);
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expect(xScale.getPixelForValue(0, 4, 0, false)).toBeCloseToPixel(487);
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expect(xScale.getPixelForValue(0, 4, 0, true)).toBeCloseToPixel(487);
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expect(xScale.getValueForPixel(487)).toBe(4);
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xScale.options.gridLines.offsetGridLines = true;
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expect(xScale.getPixelForValue(0, 0, 0, false)).toBeCloseToPixel(23);
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expect(xScale.getPixelForValue(0, 0, 0, true)).toBeCloseToPixel(69);
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expect(xScale.getValueForPixel(33)).toBe(0);
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expect(xScale.getValueForPixel(78)).toBe(0);
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expect(xScale.getPixelForValue(0, 4, 0, false)).toBeCloseToPixel(395);
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expect(xScale.getPixelForValue(0, 4, 0, true)).toBeCloseToPixel(441);
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expect(xScale.getValueForPixel(397)).toBe(4);
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expect(xScale.getValueForPixel(441)).toBe(4);
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});
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it ('Should get the correct pixel for a value when there are repeated labels', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: [10, 5, 0, 25, 78]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'category',
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position: 'bottom'
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}],
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yAxes: [{
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id: 'yScale0',
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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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var xScale = chart.scales.xScale0;
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expect(xScale.getPixelForValue('tick_1', 0, 0, false)).toBeCloseToPixel(23);
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expect(xScale.getPixelForValue('tick_1', 1, 0, false)).toBeCloseToPixel(139);
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});
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it ('Should get the correct pixel for a value when horizontal and zoomed', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: [10, 5, 0, 25, 78]
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick_last']
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'category',
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position: 'bottom',
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ticks: {
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min: 'tick2',
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max: 'tick4'
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}
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}],
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yAxes: [{
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id: 'yScale0',
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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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var xScale = chart.scales.xScale0;
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expect(xScale.getPixelForValue(0, 1, 0, false)).toBeCloseToPixel(23);
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expect(xScale.getPixelForValue(0, 1, 0, true)).toBeCloseToPixel(23);
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expect(xScale.getPixelForValue(0, 3, 0, false)).toBeCloseToPixel(496);
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expect(xScale.getPixelForValue(0, 3, 0, true)).toBeCloseToPixel(496);
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xScale.options.gridLines.offsetGridLines = true;
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expect(xScale.getPixelForValue(0, 1, 0, false)).toBeCloseToPixel(23);
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expect(xScale.getPixelForValue(0, 1, 0, true)).toBeCloseToPixel(102);
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expect(xScale.getPixelForValue(0, 3, 0, false)).toBeCloseToPixel(338);
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expect(xScale.getPixelForValue(0, 3, 0, true)).toBeCloseToPixel(419);
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});
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it ('should get the correct pixel for a value when vertical', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: ['3', '5', '1', '4', '2']
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5'],
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yLabels: ['1', '2', '3', '4', '5']
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'category',
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position: 'bottom',
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}],
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yAxes: [{
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id: 'yScale0',
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type: 'category',
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position: 'left'
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}]
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}
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}
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});
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var yScale = chart.scales.yScale0;
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expect(yScale.getPixelForValue(0, 0, 0, false)).toBe(32);
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expect(yScale.getPixelForValue(0, 0, 0, true)).toBe(32);
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expect(yScale.getValueForPixel(32)).toBe(0);
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expect(yScale.getPixelForValue(0, 4, 0, false)).toBe(484);
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expect(yScale.getPixelForValue(0, 4, 0, true)).toBe(484);
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expect(yScale.getValueForPixel(484)).toBe(4);
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yScale.options.gridLines.offsetGridLines = true;
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expect(yScale.getPixelForValue(0, 0, 0, false)).toBe(32);
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expect(yScale.getPixelForValue(0, 0, 0, true)).toBe(77);
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expect(yScale.getValueForPixel(32)).toBe(0);
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expect(yScale.getValueForPixel(77)).toBe(0);
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expect(yScale.getPixelForValue(0, 4, 0, false)).toBe(394);
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expect(yScale.getPixelForValue(0, 4, 0, true)).toBe(439);
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expect(yScale.getValueForPixel(394)).toBe(4);
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expect(yScale.getValueForPixel(439)).toBe(4);
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});
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it ('should get the correct pixel for a value when vertical and zoomed', function() {
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var chart = window.acquireChart({
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type: 'line',
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data: {
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datasets: [{
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xAxisID: 'xScale0',
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yAxisID: 'yScale0',
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data: ['3', '5', '1', '4', '2']
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}],
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labels: ['tick1', 'tick2', 'tick3', 'tick4', 'tick5'],
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yLabels: ['1', '2', '3', '4', '5']
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},
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options: {
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scales: {
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xAxes: [{
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id: 'xScale0',
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type: 'category',
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position: 'bottom',
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}],
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yAxes: [{
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id: 'yScale0',
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type: 'category',
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position: 'left',
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ticks: {
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min: '2',
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max: '4'
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}
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}]
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}
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}
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});
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var yScale = chart.scales.yScale0;
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expect(yScale.getPixelForValue(0, 1, 0, false)).toBe(32);
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expect(yScale.getPixelForValue(0, 1, 0, true)).toBe(32);
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expect(yScale.getPixelForValue(0, 3, 0, false)).toBe(484);
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expect(yScale.getPixelForValue(0, 3, 0, true)).toBe(484);
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yScale.options.gridLines.offsetGridLines = true;
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expect(yScale.getPixelForValue(0, 1, 0, false)).toBe(32);
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expect(yScale.getPixelForValue(0, 1, 0, true)).toBe(107);
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expect(yScale.getPixelForValue(0, 3, 0, false)).toBe(333);
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expect(yScale.getPixelForValue(0, 3, 0, true)).toBe(409);
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});
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});
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