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441 lines
11 KiB
441 lines
11 KiB
// Test the bar controller
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describe('Bar controller tests', function() {
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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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window.releaseAllCharts();
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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: 'bar',
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data: {
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datasets: [
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{ data: [] },
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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(1);
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expect(meta.type).toEqual('bar');
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expect(meta.data).toEqual([]);
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expect(meta.hidden).toBe(null);
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expect(meta.controller).not.toBe(undefined);
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expect(meta.controller.index).toBe(1);
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expect(meta.xAxisID).not.toBe(null);
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expect(meta.yAxisID).not.toBe(null);
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meta.controller.updateIndex(0);
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expect(meta.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 = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [
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{ data: [] },
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{ data: [] }
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],
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labels: []
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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 meta = chart.getDatasetMeta(1);
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expect(meta.xAxisID).toBe('firstXScaleID');
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expect(meta.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 = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [
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{ data: [], type: 'line' },
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{ data: [], hidden: true },
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{ data: [] },
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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(1);
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expect(meta.controller.getBarCount()).toBe(2);
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});
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it('should correctly get the bar index accounting for hidden datasets', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [
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{ data: [] },
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{ data: [], hidden: true },
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{ data: [], type: 'line' },
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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(1);
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expect(meta.controller.getBarIndex(0)).toBe(0);
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expect(meta.controller.getBarIndex(3)).toBe(1);
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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 = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [
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{ data: [] },
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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(1);
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expect(meta.data.length).toBe(4); // 4 rectangles created
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expect(meta.data[0] instanceof Chart.elements.Rectangle).toBe(true);
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expect(meta.data[1] instanceof Chart.elements.Rectangle).toBe(true);
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expect(meta.data[2] instanceof Chart.elements.Rectangle).toBe(true);
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expect(meta.data[3] instanceof Chart.elements.Rectangle).toBe(true);
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});
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it('should update elements when modifying data', function() {
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var chart = window.acquireChart({
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type: 'bar',
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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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borderColor: 'blue'
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}],
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labels: ['label1', 'label2', 'label3', 'label4']
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},
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options: {
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elements: {
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rectangle: {
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backgroundColor: 'red',
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borderSkipped: 'top',
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borderColor: 'green',
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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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type: 'category'
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}],
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yAxes: [{
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id: 'firstYScaleID',
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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 meta = chart.getDatasetMeta(1);
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expect(meta.data.length).toBe(4);
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chart.data.datasets[1].data = [1, 2]; // remove 2 items
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chart.data.datasets[1].borderWidth = 1;
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chart.update();
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expect(meta.data.length).toBe(2);
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[ { x: 122, y: 484 },
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{ x: 234, y: 32 }
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].forEach(function(expected, i) {
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expect(meta.data[i]._datasetIndex).toBe(1);
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expect(meta.data[i]._index).toBe(i);
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expect(meta.data[i]._xScale).toBe(chart.scales.firstXScaleID);
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expect(meta.data[i]._yScale).toBe(chart.scales.firstYScaleID);
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expect(meta.data[i]._model.x).toBeCloseToPixel(expected.x);
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expect(meta.data[i]._model.y).toBeCloseToPixel(expected.y);
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expect(meta.data[i]._model.base).toBeCloseToPixel(484);
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expect(meta.data[i]._model.width).toBeCloseToPixel(40);
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expect(meta.data[i]._model).toEqual(jasmine.objectContaining({
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datasetLabel: chart.config.data.datasets[1].label,
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label: chart.config.data.labels[i],
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backgroundColor: 'red',
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borderSkipped: 'top',
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borderColor: 'blue',
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borderWidth: 1
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}));
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});
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chart.data.datasets[1].data = [1, 2, 3]; // add 1 items
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chart.update();
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expect(meta.data.length).toBe(3); // should add a new meta data item
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});
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it('should get the correct bar points when datasets of different types exist', function() {
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var chart = window.acquireChart({
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type: 'bar',
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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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type: 'line',
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data: [4, 6],
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label: 'dataset2'
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}, {
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data: [8, 10],
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label: 'dataset3'
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}],
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labels: ['label1', 'label2']
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},
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options: {
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scales: {
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xAxes: [{
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type: 'category'
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}],
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yAxes: [{
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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 meta = chart.getDatasetMeta(2);
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expect(meta.data.length).toBe(2);
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var bar1 = meta.data[0];
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var bar2 = meta.data[1];
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expect(bar1._model.x).toBeCloseToPixel(194);
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expect(bar1._model.y).toBeCloseToPixel(132);
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expect(bar2._model.x).toBeCloseToPixel(424);
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expect(bar2._model.y).toBeCloseToPixel(32);
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});
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it('should update elements when the scales are stacked', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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data: [10, -10, 10, -10],
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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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options: {
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scales: {
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xAxes: [{
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type: 'category',
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stacked: true
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}],
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yAxes: [{
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type: 'linear',
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stacked: true
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}]
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}
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}
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});
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var meta0 = chart.getDatasetMeta(0);
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[ { b: 290, w: 91, x: 95, y: 161 },
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{ b: 290, w: 91, x: 209, y: 419 },
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{ b: 290, w: 91, x: 322, y: 161 },
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{ b: 290, w: 91, x: 436, y: 419 }
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].forEach(function(values, i) {
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expect(meta0.data[i]._model.base).toBeCloseToPixel(values.b);
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expect(meta0.data[i]._model.width).toBeCloseToPixel(values.w);
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expect(meta0.data[i]._model.x).toBeCloseToPixel(values.x);
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expect(meta0.data[i]._model.y).toBeCloseToPixel(values.y);
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});
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var meta1 = chart.getDatasetMeta(1);
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[ { b: 161, w: 91, x: 95, y: 32 },
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{ b: 290, w: 91, x: 209, y: 97 },
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{ b: 161, w: 91, x: 322, y: 161 },
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{ b: 419, w: 91, x: 436, y: 471 }
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].forEach(function(values, i) {
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expect(meta1.data[i]._model.base).toBeCloseToPixel(values.b);
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expect(meta1.data[i]._model.width).toBeCloseToPixel(values.w);
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expect(meta1.data[i]._model.x).toBeCloseToPixel(values.x);
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expect(meta1.data[i]._model.y).toBeCloseToPixel(values.y);
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});
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});
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it('should draw all bars', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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data: [],
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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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});
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var meta = chart.getDatasetMeta(1);
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spyOn(meta.data[0], 'draw');
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spyOn(meta.data[1], 'draw');
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spyOn(meta.data[2], 'draw');
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spyOn(meta.data[3], 'draw');
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chart.update();
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expect(meta.data[0].draw.calls.count()).toBe(1);
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expect(meta.data[1].draw.calls.count()).toBe(1);
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expect(meta.data[2].draw.calls.count()).toBe(1);
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expect(meta.data[3].draw.calls.count()).toBe(1);
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});
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it('should set hover styles on rectangles', function() {
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var chart = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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data: [],
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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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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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}
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});
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var meta = chart.getDatasetMeta(1);
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var bar = meta.data[0];
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meta.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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meta.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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meta.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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meta.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 = window.acquireChart({
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type: 'bar',
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data: {
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datasets: [{
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data: [],
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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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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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}
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});
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var meta = chart.getDatasetMeta(1);
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var bar = meta.data[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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meta.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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meta.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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meta.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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});
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