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468 lines
11 KiB
JavaScript
468 lines
11 KiB
JavaScript
// Test the bar controller
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describe('Bar controller tests', function() {
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it('Should be constructed', function() {
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var chart = {
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data: {
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datasets: [{
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}, {
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xAxisID: 'myXAxis',
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yAxisID: 'myYAxis',
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data: []
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}]
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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expect(controller).not.toBe(undefined);
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expect(controller.index).toBe(1);
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expect(chart.data.datasets[1].metaData).toEqual([]);
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controller.updateIndex(0);
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expect(controller.index).toBe(0);
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});
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it('Should use the first scale IDs if the dataset does not specify them', function() {
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var chart = {
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data: {
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datasets: [{
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}, {
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data: []
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}]
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},
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options: {
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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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expect(chart.data.datasets[1].xAxisID).toBe('firstXScaleID');
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expect(chart.data.datasets[1].yAxisID).toBe('firstYScaleID');
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});
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it('should correctly count the number of bar datasets', function() {
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var chart = {
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data: {
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datasets: [{
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type: 'line'
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}, {
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type: 'bar'
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}, {
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// no type, defaults to bar
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}]
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},
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config: {
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type: 'bar'
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},
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options: {
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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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expect(controller.getBarCount()).toBe(2);
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});
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it('Should create rectangle elements for each data item during initialization', function() {
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var chart = {
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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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},
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config: {
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type: 'bar'
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},
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options: {
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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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expect(chart.data.datasets[1].metaData.length).toBe(4); // 4 rectangles created
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expect(chart.data.datasets[1].metaData[0] instanceof Chart.elements.Rectangle).toBe(true);
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expect(chart.data.datasets[1].metaData[1] instanceof Chart.elements.Rectangle).toBe(true);
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expect(chart.data.datasets[1].metaData[2] instanceof Chart.elements.Rectangle).toBe(true);
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expect(chart.data.datasets[1].metaData[3] instanceof Chart.elements.Rectangle).toBe(true);
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});
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it('should remove elements', function() {
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var chart = {
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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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},
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config: {
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type: 'bar'
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},
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options: {
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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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controller.removeElement(1);
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expect(chart.data.datasets[1].metaData.length).toBe(3);
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});
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it('should update elements', function() {
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var chart = {
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data: {
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datasets: [{
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data: [1, 2],
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label: 'dataset1',
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}, {
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data: [10, 15, 0, -4],
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label: 'dataset2'
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}],
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labels: ['label1', 'label2', 'label3', 'label4']
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},
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config: {
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type: 'bar'
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},
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options: {
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elements: {
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rectangle: {
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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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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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},
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scales: {
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firstXScaleID: {
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calculateBarWidth: function(numBars) { return numBars * 5; },
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calculateBarX: function(numBars, datasetIndex, index) {
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return chart.data.datasets[datasetIndex].data[index];
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},
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},
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firstYScaleID: {
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calculateBarBase: function(datasetIndex, index) {
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return this.getPixelForValue(0);
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},
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calculateBarY: function(datasetIndex, index) {
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return this.getPixelForValue(chart.data.datasets[datasetIndex].data[index]);
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},
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getPixelForValue: function(value) {
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return value * 2;
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},
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max: 10,
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min: -10,
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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chart.data.datasets[1].data = [1, 2]; // remove 2 items
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controller.update();
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expect(chart.data.datasets[1].metaData.length).toBe(2);
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var bar1 = chart.data.datasets[1].metaData[0];
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var bar2 = chart.data.datasets[1].metaData[1];
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expect(bar1._datasetIndex).toBe(1);
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expect(bar1._index).toBe(0);
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expect(bar1._xScale).toBe(chart.scales.firstXScaleID);
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expect(bar1._yScale).toBe(chart.scales.firstYScaleID);
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expect(bar1._model).toEqual({
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x: 1,
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y: 2,
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label: 'label1',
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datasetLabel: 'dataset2',
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base: 0,
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width: 10,
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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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expect(bar2._datasetIndex).toBe(1);
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expect(bar2._index).toBe(1);
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expect(bar2._xScale).toBe(chart.scales.firstXScaleID);
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expect(bar2._yScale).toBe(chart.scales.firstYScaleID);
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expect(bar2._model).toEqual({
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x: 2,
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y: 4,
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label: 'label2',
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datasetLabel: 'dataset2',
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base: 0,
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width: 10,
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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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chart.data.datasets[1].data = [1, 2, 3];
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controller.update();
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expect(chart.data.datasets[1].metaData.length).toBe(3); // should add a new meta data item
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});
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it ('should draw all bars', function() {
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var chart = {
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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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},
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config: {
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type: 'bar'
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},
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options: {
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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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spyOn(chart.data.datasets[1].metaData[0], 'draw');
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spyOn(chart.data.datasets[1].metaData[1], 'draw');
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spyOn(chart.data.datasets[1].metaData[2], 'draw');
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spyOn(chart.data.datasets[1].metaData[3], 'draw');
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controller.draw();
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expect(chart.data.datasets[1].metaData[0].draw.calls.count()).toBe(1);
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expect(chart.data.datasets[1].metaData[1].draw.calls.count()).toBe(1);
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expect(chart.data.datasets[1].metaData[2].draw.calls.count()).toBe(1);
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expect(chart.data.datasets[1].metaData[3].draw.calls.count()).toBe(1);
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});
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it ('should set hover styles on rectangles', function() {
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var chart = {
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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: ['label1', 'label2', 'label3', 'label4']
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},
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config: {
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type: 'bar'
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},
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options: {
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elements: {
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rectangle: {
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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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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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},
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scales: {
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firstXScaleID: {
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calculateBarWidth: function(numBars) { return numBars * 5; },
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calculateBarX: function(numBars, datasetIndex, index) {
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return chart.data.datasets[datasetIndex].data[index];
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},
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},
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firstYScaleID: {
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calculateBarBase: function(datasetIndex, index) {
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return this.getPixelForValue(0);
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},
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calculateBarY: function(datasetIndex, index) {
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return this.getPixelForValue(chart.data.datasets[datasetIndex].data[index]);
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},
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getPixelForValue: function(value) {
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return value * 2;
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},
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max: 10,
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min: -10,
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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controller.update();
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var bar = chart.data.datasets[1].metaData[0];
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controller.setHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(230, 0, 0)');
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expect(bar._model.borderColor).toBe('rgb(0, 0, 230)');
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expect(bar._model.borderWidth).toBe(2);
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// Set a dataset style
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chart.data.datasets[1].hoverBackgroundColor = 'rgb(128, 128, 128)';
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chart.data.datasets[1].hoverBorderColor = 'rgb(0, 0, 0)';
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chart.data.datasets[1].hoverBorderWidth = 5;
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controller.setHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(128, 128, 128)');
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expect(bar._model.borderColor).toBe('rgb(0, 0, 0)');
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expect(bar._model.borderWidth).toBe(5);
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// Should work with array styles so that we can set per bar
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chart.data.datasets[1].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
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chart.data.datasets[1].hoverBorderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
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chart.data.datasets[1].hoverBorderWidth = [2.5, 5];
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controller.setHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(255, 255, 255)');
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expect(bar._model.borderColor).toBe('rgb(9, 9, 9)');
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expect(bar._model.borderWidth).toBe(2.5);
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// Should allow a custom style
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bar.custom = {
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hoverBackgroundColor: 'rgb(255, 0, 0)',
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hoverBorderColor: 'rgb(0, 255, 0)',
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hoverBorderWidth: 1.5
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};
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controller.setHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(255, 0, 0)');
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expect(bar._model.borderColor).toBe('rgb(0, 255, 0)');
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expect(bar._model.borderWidth).toBe(1.5);
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});
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it ('should remove a hover style from a bar', function() {
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var chart = {
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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: ['label1', 'label2', 'label3', 'label4']
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},
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config: {
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type: 'bar'
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},
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options: {
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elements: {
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rectangle: {
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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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scales: {
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xAxes: [{
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id: 'firstXScaleID'
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}],
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yAxes: [{
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id: 'firstYScaleID'
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}]
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}
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},
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scales: {
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firstXScaleID: {
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calculateBarWidth: function(numBars) { return numBars * 5; },
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calculateBarX: function(numBars, datasetIndex, index) {
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return chart.data.datasets[datasetIndex].data[index];
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},
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},
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firstYScaleID: {
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calculateBarBase: function(datasetIndex, index) {
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return this.getPixelForValue(0);
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},
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calculateBarY: function(datasetIndex, index) {
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return this.getPixelForValue(chart.data.datasets[datasetIndex].data[index]);
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},
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getPixelForValue: function(value) {
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return value * 2;
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},
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max: 10,
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min: -10,
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}
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}
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};
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var controller = new Chart.controllers.bar(chart, 1);
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controller.update();
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var bar = chart.data.datasets[1].metaData[0];
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// Change default
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chart.options.elements.rectangle.backgroundColor = 'rgb(128, 128, 128)';
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chart.options.elements.rectangle.borderColor = 'rgb(15, 15, 15)';
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chart.options.elements.rectangle.borderWidth = 3.14;
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// Remove to defaults
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controller.removeHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(128, 128, 128)');
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expect(bar._model.borderColor).toBe('rgb(15, 15, 15)');
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expect(bar._model.borderWidth).toBe(3.14);
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// Should work with array styles so that we can set per bar
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chart.data.datasets[1].backgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
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chart.data.datasets[1].borderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
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chart.data.datasets[1].borderWidth = [2.5, 5];
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controller.removeHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(255, 255, 255)');
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expect(bar._model.borderColor).toBe('rgb(9, 9, 9)');
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expect(bar._model.borderWidth).toBe(2.5);
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// Should allow a custom style
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bar.custom = {
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backgroundColor: 'rgb(255, 0, 0)',
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borderColor: 'rgb(0, 255, 0)',
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borderWidth: 1.5
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};
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controller.removeHoverStyle(bar);
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expect(bar._model.backgroundColor).toBe('rgb(255, 0, 0)');
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expect(bar._model.borderColor).toBe('rgb(0, 255, 0)');
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expect(bar._model.borderWidth).toBe(1.5);
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});
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}); |