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describe('Chart.controllers.bar', function() {
describe('auto', jasmine.fixture.specs('controller.bar'));
it('should be registered as dataset controller', function() {
expect(typeof Chart.controllers.bar).toBe('function');
});
it('should be constructed', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.type).toEqual('bar');
expect(meta.data).toEqual([]);
expect(meta.hidden).toBe(null);
expect(meta.controller).not.toBe(undefined);
expect(meta.controller.index).toBe(1);
expect(meta.xAxisID).not.toBe(null);
expect(meta.yAxisID).not.toBe(null);
meta.controller.updateIndex(0);
expect(meta.controller.index).toBe(0);
});
it('should set null bars to the reset state', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [10, null, 0, -4],
label: 'dataset1',
}],
labels: ['label1', 'label2', 'label3', 'label4']
}
});
var meta = chart.getDatasetMeta(0);
var bar = meta.data[1];
var {x, y, base} = bar.getProps(['x', 'y', 'base'], true);
expect(isNaN(x)).toBe(false);
expect(isNaN(y)).toBe(false);
expect(isNaN(base)).toBe(false);
});
it('should use the first scale IDs if the dataset does not specify them', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []}
],
labels: []
},
});
var meta = chart.getDatasetMeta(1);
expect(meta.xAxisID).toBe('x');
expect(meta.yAxisID).toBe('y');
});
it('should correctly count the number of stacks ignoring datasets of other types and hidden datasets', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], type: 'line'},
{data: [], hidden: true},
{data: []},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackCount()).toBe(2);
});
it('should correctly count the number of stacks when a group is not specified', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []},
{data: []},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackCount()).toBe(4);
});
it('should correctly count the number of stacks when a group is not specified and the scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: true
},
y: {
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackCount()).toBe(1);
});
it('should correctly count the number of stacks when a group is not specified and the scale is not stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: false
},
y: {
stacked: false
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackCount()).toBe(4);
});
it('should correctly count the number of stacks when a group is specified for some', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: []},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(3);
expect(meta.controller._getStackCount()).toBe(3);
});
it('should correctly count the number of stacks when a group is specified for some and the scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: true
},
y: {
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(3);
expect(meta.controller._getStackCount()).toBe(2);
});
it('should correctly count the number of stacks when a group is specified for some and the scale is not stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: false
},
y: {
stacked: false
}
}
}
});
var meta = chart.getDatasetMeta(3);
expect(meta.controller._getStackCount()).toBe(4);
});
it('should correctly count the number of stacks when a group is specified for all', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: [], stack: 'stack2'},
{data: [], stack: 'stack2'}
],
labels: []
}
});
var meta = chart.getDatasetMeta(3);
expect(meta.controller._getStackCount()).toBe(2);
});
it('should correctly count the number of stacks when a group is specified for all and the scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: [], stack: 'stack2'},
{data: [], stack: 'stack2'}
],
labels: []
},
options: {
scales: {
x: {
stacked: true
},
y: {
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(3);
expect(meta.controller._getStackCount()).toBe(2);
});
it('should correctly count the number of stacks when a group is specified for all and the scale is not stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: [], stack: 'stack2'},
{data: [], stack: 'stack2'}
],
labels: []
},
options: {
scales: {
x: {
stacked: false
},
y: {
stacked: false
}
}
}
});
var meta = chart.getDatasetMeta(3);
expect(meta.controller._getStackCount()).toBe(4);
});
it('should correctly get the stack index accounting for datasets of other types and hidden datasets', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: [], hidden: true},
{data: [], type: 'line'},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(3)).toBe(1);
});
it('should correctly get the stack index when a group is not specified', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []},
{data: []},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(1);
expect(meta.controller._getStackIndex(2)).toBe(2);
expect(meta.controller._getStackIndex(3)).toBe(3);
});
it('should correctly get the stack index when a group is not specified and the scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: true
},
y: {
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(0);
expect(meta.controller._getStackIndex(2)).toBe(0);
expect(meta.controller._getStackIndex(3)).toBe(0);
});
it('should correctly get the stack index when a group is not specified and the scale is not stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: []},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: false
},
y: {
stacked: false
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(1);
expect(meta.controller._getStackIndex(2)).toBe(2);
expect(meta.controller._getStackIndex(3)).toBe(3);
});
it('should correctly get the stack index when a group is specified for some', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: []},
{data: []}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(0);
expect(meta.controller._getStackIndex(2)).toBe(1);
expect(meta.controller._getStackIndex(3)).toBe(2);
});
it('should correctly get the stack index when a group is specified for some and the scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: true
},
y: {
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(0);
expect(meta.controller._getStackIndex(2)).toBe(1);
expect(meta.controller._getStackIndex(3)).toBe(1);
});
it('should correctly get the stack index when a group is specified for some and the scale is not stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: []},
{data: []}
],
labels: []
},
options: {
scales: {
x: {
stacked: false
},
y: {
stacked: false
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(1);
expect(meta.controller._getStackIndex(2)).toBe(2);
expect(meta.controller._getStackIndex(3)).toBe(3);
});
it('should correctly get the stack index when a group is specified for all', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: [], stack: 'stack2'},
{data: [], stack: 'stack2'}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(0);
expect(meta.controller._getStackIndex(2)).toBe(1);
expect(meta.controller._getStackIndex(3)).toBe(1);
});
it('should correctly get the stack index when a group is specified for all and the scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: [], stack: 'stack2'},
{data: [], stack: 'stack2'}
],
labels: []
},
options: {
scales: {
x: {
stacked: true
},
y: {
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(0);
expect(meta.controller._getStackIndex(2)).toBe(1);
expect(meta.controller._getStackIndex(3)).toBe(1);
});
it('should correctly get the stack index when a group is specified for all and the scale is not stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: [], stack: 'stack1'},
{data: [], stack: 'stack1'},
{data: [], stack: 'stack2'},
{data: [], stack: 'stack2'}
],
labels: []
},
options: {
scales: {
x: {
stacked: false
},
y: {
stacked: false
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.controller._getStackIndex(0)).toBe(0);
expect(meta.controller._getStackIndex(1)).toBe(1);
expect(meta.controller._getStackIndex(2)).toBe(2);
expect(meta.controller._getStackIndex(3)).toBe(3);
});
it('should create bar elements for each data item during initialization', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [
{data: []},
{data: [10, 15, 0, -4]}
],
labels: []
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.data.length).toBe(4); // 4 bars created
expect(meta.data[0] instanceof Chart.elements.BarElement).toBe(true);
expect(meta.data[1] instanceof Chart.elements.BarElement).toBe(true);
expect(meta.data[2] instanceof Chart.elements.BarElement).toBe(true);
expect(meta.data[3] instanceof Chart.elements.BarElement).toBe(true);
});
it('should update elements when modifying data', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2],
label: 'dataset1'
}, {
data: [10, 15, 0, -4],
label: 'dataset2',
borderColor: 'blue'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
elements: {
bar: {
backgroundColor: 'red',
borderSkipped: 'top',
borderColor: 'green',
borderWidth: 2,
}
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
beginAtZero: false
}
}
}
});
var meta = chart.getDatasetMeta(1);
expect(meta.data.length).toBe(4);
chart.data.datasets[1].data = [1, 2]; // remove 2 items
chart.data.datasets[1].borderWidth = 1;
chart.update();
expect(meta.data.length).toBe(2);
expect(meta._parsed.length).toBe(2);
[
{x: 89, y: 512},
{x: 217, y: 0}
].forEach(function(expected, i) {
expect(meta.data[i].x).toBeCloseToPixel(expected.x);
expect(meta.data[i].y).toBeCloseToPixel(expected.y);
expect(meta.data[i].base).toBeCloseToPixel(1024);
expect(meta.data[i].width).toBeCloseToPixel(46);
expect(meta.data[i].options).toEqual(jasmine.objectContaining({
backgroundColor: 'red',
borderSkipped: 'top',
borderColor: 'blue',
borderWidth: 1
}));
});
chart.data.datasets[1].data = [1, 2, 3]; // add 1 items
chart.update();
expect(meta.data.length).toBe(3); // should add a new meta data item
});
it('should get the correct bar points when datasets of different types exist', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2],
label: 'dataset1'
}, {
type: 'line',
data: [4, 6],
label: 'dataset2'
}, {
data: [8, 10],
label: 'dataset3'
}],
labels: ['label1', 'label2']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
beginAtZero: false
}
}
}
});
var meta = chart.getDatasetMeta(2);
expect(meta.data.length).toBe(2);
var bar1 = meta.data[0];
var bar2 = meta.data[1];
expect(bar1.x).toBeCloseToPixel(179);
expect(bar1.y).toBeCloseToPixel(117);
expect(bar2.x).toBeCloseToPixel(431);
expect(bar2.y).toBeCloseToPixel(4);
});
it('should get the bar points for hidden dataset', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2],
label: 'dataset1',
hidden: true
}],
labels: ['label1', 'label2']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
min: 0,
max: 2,
display: false
}
}
}
});
var meta = chart.getDatasetMeta(0);
expect(meta.data.length).toBe(2);
var bar1 = meta.data[0];
var bar2 = meta.data[1];
expect(bar1.x).toBeCloseToPixel(128);
expect(bar1.y).toBeCloseToPixel(256);
expect(bar2.x).toBeCloseToPixel(384);
expect(bar2.y).toBeCloseToPixel(0);
});
it('should update elements when the scales are stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [10, -10, 10, -10],
label: 'dataset1'
}, {
data: [10, 15, 0, -4],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
stacked: true
}
}
}
});
var meta0 = chart.getDatasetMeta(0);
[
{b: 293, w: 92 / 2, x: 38, y: 146},
{b: 293, w: 92 / 2, x: 166, y: 439},
{b: 293, w: 92 / 2, x: 295, y: 146},
{b: 293, w: 92 / 2, x: 422, y: 439}
].forEach(function(values, i) {
expect(meta0.data[i].base).toBeCloseToPixel(values.b);
expect(meta0.data[i].width).toBeCloseToPixel(values.w);
expect(meta0.data[i].x).toBeCloseToPixel(values.x);
expect(meta0.data[i].y).toBeCloseToPixel(values.y);
});
var meta1 = chart.getDatasetMeta(1);
[
{b: 146, w: 92 / 2, x: 89, y: 0},
{b: 293, w: 92 / 2, x: 217, y: 73},
{b: 146, w: 92 / 2, x: 345, y: 146},
{b: 439, w: 92 / 2, x: 473, y: 497}
].forEach(function(values, i) {
expect(meta1.data[i].base).toBeCloseToPixel(values.b);
expect(meta1.data[i].width).toBeCloseToPixel(values.w);
expect(meta1.data[i].x).toBeCloseToPixel(values.x);
expect(meta1.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should update elements when the scales are stacked and the y axis has a user defined minimum', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [50, 20, 10, 100],
label: 'dataset1'
}, {
data: [50, 80, 90, 0],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
stacked: true,
min: 50,
max: 100
}
}
}
});
var meta0 = chart.getDatasetMeta(0);
[
{b: 1024, w: 92 / 2, x: 38, y: 512},
{b: 1024, w: 92 / 2, x: 166, y: 819},
{b: 1024, w: 92 / 2, x: 294, y: 922},
{b: 1024, w: 92 / 2, x: 422.5, y: 0}
].forEach(function(values, i) {
expect(meta0.data[i].base).toBeCloseToPixel(values.b);
expect(meta0.data[i].width).toBeCloseToPixel(values.w);
expect(meta0.data[i].x).toBeCloseToPixel(values.x);
expect(meta0.data[i].y).toBeCloseToPixel(values.y);
});
var meta1 = chart.getDatasetMeta(1);
[
{b: 512, w: 92 / 2, x: 89, y: 0},
{b: 819.2, w: 92 / 2, x: 217, y: 0},
{b: 921.6, w: 92 / 2, x: 345, y: 0},
{b: 0, w: 92 / 2, x: 473.5, y: 0}
].forEach(function(values, i) {
expect(meta1.data[i].base).toBeCloseToPixel(values.b);
expect(meta1.data[i].width).toBeCloseToPixel(values.w);
expect(meta1.data[i].x).toBeCloseToPixel(values.x);
expect(meta1.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should update elements when only the category scale is stacked', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [20, -10, 10, -10],
label: 'dataset1'
}, {
data: [10, 15, 0, -14],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false,
stacked: true
},
y: {
type: 'linear',
display: false
}
}
}
});
var meta0 = chart.getDatasetMeta(0);
[
{b: 293, w: 92, x: 64, y: 0},
{b: 293, w: 92, x: 192, y: 439},
{b: 293, w: 92, x: 320, y: 146},
{b: 293, w: 92, x: 448, y: 439}
].forEach(function(values, i) {
expect(meta0.data[i].base).toBeCloseToPixel(values.b);
expect(meta0.data[i].width).toBeCloseToPixel(values.w);
expect(meta0.data[i].x).toBeCloseToPixel(values.x);
expect(meta0.data[i].y).toBeCloseToPixel(values.y);
});
var meta1 = chart.getDatasetMeta(1);
[
{b: 293, w: 92, x: 64, y: 146},
{b: 293, w: 92, x: 192, y: 73},
{b: 293, w: 92, x: 320, y: 293},
{b: 293, w: 92, x: 448, y: 497}
].forEach(function(values, i) {
expect(meta1.data[i].base).toBeCloseToPixel(values.b);
expect(meta1.data[i].width).toBeCloseToPixel(values.w);
expect(meta1.data[i].x).toBeCloseToPixel(values.x);
expect(meta1.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should update elements when the scales are stacked and data is strings', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: ['10', '-10', '10', '-10'],
label: 'dataset1'
}, {
data: ['10', '15', '0', '-4'],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
stacked: true
}
}
}
});
var meta0 = chart.getDatasetMeta(0);
[
{b: 293, w: 92 / 2, x: 38, y: 146},
{b: 293, w: 92 / 2, x: 166, y: 439},
{b: 293, w: 92 / 2, x: 295, y: 146},
{b: 293, w: 92 / 2, x: 422, y: 439}
].forEach(function(values, i) {
expect(meta0.data[i].base).toBeCloseToPixel(values.b);
expect(meta0.data[i].width).toBeCloseToPixel(values.w);
expect(meta0.data[i].x).toBeCloseToPixel(values.x);
expect(meta0.data[i].y).toBeCloseToPixel(values.y);
});
var meta1 = chart.getDatasetMeta(1);
[
{b: 146, w: 92 / 2, x: 89, y: 0},
{b: 293, w: 92 / 2, x: 217, y: 73},
{b: 146, w: 92 / 2, x: 345, y: 146},
{b: 439, w: 92 / 2, x: 473, y: 497}
].forEach(function(values, i) {
expect(meta1.data[i].base).toBeCloseToPixel(values.b);
expect(meta1.data[i].width).toBeCloseToPixel(values.w);
expect(meta1.data[i].x).toBeCloseToPixel(values.x);
expect(meta1.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should get the correct bar points for grouped stacked chart if the group name is same', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [10, -10, 10, -10],
label: 'dataset1',
stack: 'stack1'
}, {
data: [10, 15, 0, -4],
label: 'dataset2',
stack: 'stack1'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
stacked: true
}
}
}
});
var meta0 = chart.getDatasetMeta(0);
[
{b: 293, w: 92, x: 64, y: 146},
{b: 293, w: 92, x: 192, y: 439},
{b: 293, w: 92, x: 320, y: 146},
{b: 293, w: 92, x: 448, y: 439}
].forEach(function(values, i) {
expect(meta0.data[i].base).toBeCloseToPixel(values.b);
expect(meta0.data[i].width).toBeCloseToPixel(values.w);
expect(meta0.data[i].x).toBeCloseToPixel(values.x);
expect(meta0.data[i].y).toBeCloseToPixel(values.y);
});
var meta = chart.getDatasetMeta(1);
[
{b: 146, w: 92, x: 64, y: 0},
{b: 293, w: 92, x: 192, y: 73},
{b: 146, w: 92, x: 320, y: 146},
{b: 439, w: 92, x: 448, y: 497}
].forEach(function(values, i) {
expect(meta.data[i].base).toBeCloseToPixel(values.b);
expect(meta.data[i].width).toBeCloseToPixel(values.w);
expect(meta.data[i].x).toBeCloseToPixel(values.x);
expect(meta.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should get the correct bar points for grouped stacked chart if the group name is different', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2],
stack: 'stack1'
}, {
data: [1, 2],
stack: 'stack2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
stacked: true,
}
}
}
});
var meta = chart.getDatasetMeta(1);
[
{x: 89, y: 256},
{x: 217, y: 0}
].forEach(function(values, i) {
expect(meta.data[i].base).toBeCloseToPixel(512);
expect(meta.data[i].width).toBeCloseToPixel(46);
expect(meta.data[i].x).toBeCloseToPixel(values.x);
expect(meta.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should get the correct bar points for grouped stacked chart', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2],
stack: 'stack1'
}, {
data: [0.5, 1],
stack: 'stack2'
}, {
data: [0.5, 1],
stack: 'stack2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
stacked: true
}
}
}
});
var meta = chart.getDatasetMeta(2);
[
{b: 384, x: 89, y: 256},
{b: 256, x: 217, y: 0}
].forEach(function(values, i) {
expect(meta.data[i].base).toBeCloseToPixel(values.b);
expect(meta.data[i].width).toBeCloseToPixel(46);
expect(meta.data[i].x).toBeCloseToPixel(values.x);
expect(meta.data[i].y).toBeCloseToPixel(values.y);
});
});
it('should draw all bars', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [],
}, {
data: [10, 15, 0, -4],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
}
});
var meta = chart.getDatasetMeta(1);
spyOn(meta.data[0], 'draw');
spyOn(meta.data[1], 'draw');
spyOn(meta.data[2], 'draw');
spyOn(meta.data[3], 'draw');
chart.update();
expect(meta.data[0].draw.calls.count()).toBe(1);
expect(meta.data[1].draw.calls.count()).toBe(1);
expect(meta.data[2].draw.calls.count()).toBe(1);
expect(meta.data[3].draw.calls.count()).toBe(1);
});
it('should set hover styles on bars', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [],
}, {
data: [10, 15, 0, -4],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
elements: {
bar: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
}
}
}
});
var meta = chart.getDatasetMeta(1);
var bar = meta.data[0];
meta.controller.setHoverStyle(bar, 1, 0);
expect(bar.options.backgroundColor).toBe('#E60000');
expect(bar.options.borderColor).toBe('#0000E6');
expect(bar.options.borderWidth).toBe(2);
// Set a dataset style
chart.data.datasets[1].hoverBackgroundColor = 'rgb(128, 128, 128)';
chart.data.datasets[1].hoverBorderColor = 'rgb(0, 0, 0)';
chart.data.datasets[1].hoverBorderWidth = 5;
chart.update();
meta.controller.setHoverStyle(bar, 1, 0);
expect(bar.options.backgroundColor).toBe('rgb(128, 128, 128)');
expect(bar.options.borderColor).toBe('rgb(0, 0, 0)');
expect(bar.options.borderWidth).toBe(5);
// Should work with array styles so that we can set per bar
chart.data.datasets[1].hoverBackgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
chart.data.datasets[1].hoverBorderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
chart.data.datasets[1].hoverBorderWidth = [2.5, 5];
chart.update();
meta.controller.setHoverStyle(bar, 1, 0);
expect(bar.options.backgroundColor).toBe('rgb(255, 255, 255)');
expect(bar.options.borderColor).toBe('rgb(9, 9, 9)');
expect(bar.options.borderWidth).toBe(2.5);
});
it('should remove a hover style from a bar', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [],
}, {
data: [10, 15, 0, -4],
label: 'dataset2'
}],
labels: ['label1', 'label2', 'label3', 'label4']
},
options: {
elements: {
bar: {
backgroundColor: 'rgb(255, 0, 0)',
borderColor: 'rgb(0, 0, 255)',
borderWidth: 2,
}
}
}
});
var meta = chart.getDatasetMeta(1);
var bar = meta.data[0];
var helpers = window.Chart.helpers;
// Change default
chart.options.elements.bar.backgroundColor = 'rgb(128, 128, 128)';
chart.options.elements.bar.borderColor = 'rgb(15, 15, 15)';
chart.options.elements.bar.borderWidth = 3.14;
chart.update();
expect(bar.options.backgroundColor).toBe('rgb(128, 128, 128)');
expect(bar.options.borderColor).toBe('rgb(15, 15, 15)');
expect(bar.options.borderWidth).toBe(3.14);
meta.controller.setHoverStyle(bar, 1, 0);
expect(bar.options.backgroundColor).toBe(helpers.getHoverColor('rgb(128, 128, 128)'));
expect(bar.options.borderColor).toBe(helpers.getHoverColor('rgb(15, 15, 15)'));
expect(bar.options.borderWidth).toBe(3.14);
meta.controller.removeHoverStyle(bar);
expect(bar.options.backgroundColor).toBe('rgb(128, 128, 128)');
expect(bar.options.borderColor).toBe('rgb(15, 15, 15)');
expect(bar.options.borderWidth).toBe(3.14);
// Should work with array styles so that we can set per bar
chart.data.datasets[1].backgroundColor = ['rgb(255, 255, 255)', 'rgb(128, 128, 128)'];
chart.data.datasets[1].borderColor = ['rgb(9, 9, 9)', 'rgb(0, 0, 0)'];
chart.data.datasets[1].borderWidth = [2.5, 5];
chart.update();
expect(bar.options.backgroundColor).toBe('rgb(255, 255, 255)');
expect(bar.options.borderColor).toBe('rgb(9, 9, 9)');
expect(bar.options.borderWidth).toBe(2.5);
meta.controller.setHoverStyle(bar, 1, 0);
expect(bar.options.backgroundColor).toBe(helpers.getHoverColor('rgb(255, 255, 255)'));
expect(bar.options.borderColor).toBe(helpers.getHoverColor('rgb(9, 9, 9)'));
expect(bar.options.borderWidth).toBe(2.5);
meta.controller.removeHoverStyle(bar);
expect(bar.options.backgroundColor).toBe('rgb(255, 255, 255)');
expect(bar.options.borderColor).toBe('rgb(9, 9, 9)');
expect(bar.options.borderWidth).toBe(2.5);
});
describe('Bar width', function() {
beforeEach(function() {
// 2 datasets
this.data = {
labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
datasets: [{
data: [10, 20, 30, 40, 50, 60, 70],
}, {
data: [10, 20, 30, 40, 50, 60, 70],
}]
};
});
afterEach(function() {
var chart = window.acquireChart(this.config);
var meta = chart.getDatasetMeta(0);
var xScale = chart.scales[meta.xAxisID];
var options = Chart.defaults.datasets.bar;
var categoryPercentage = options.categoryPercentage;
var barPercentage = options.barPercentage;
var stacked = xScale.options.stacked;
var totalBarWidth = 0;
for (var i = 0; i < chart.data.datasets.length; i++) {
var bars = chart.getDatasetMeta(i).data;
for (var j = xScale.min; j <= xScale.max; j++) {
totalBarWidth += bars[j].width;
}
if (stacked) {
break;
}
}
var actualValue = totalBarWidth;
var expectedValue = xScale.width * categoryPercentage * barPercentage;
expect(actualValue).toBeCloseToPixel(expectedValue);
});
it('should correctly set bar width when min and max option is set.', function() {
this.config = {
type: 'bar',
data: this.data,
options: {
scales: {
x: {
min: 'March',
max: 'May',
}
}
}
};
});
it('should correctly set bar width when scale are stacked with min and max options.', function() {
this.config = {
type: 'bar',
data: this.data,
options: {
scales: {
x: {
min: 'March',
max: 'May',
},
y: {
stacked: true
}
}
}
};
});
});
describe('Bar height (horizontal type)', function() {
beforeEach(function() {
// 2 datasets
this.data = {
labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
datasets: [{
data: [10, 20, 30, 40, 50, 60, 70],
}, {
data: [10, 20, 30, 40, 50, 60, 70],
}]
};
});
afterEach(function() {
var chart = window.acquireChart(this.config);
var meta = chart.getDatasetMeta(0);
var yScale = chart.scales[meta.yAxisID];
var config = meta.controller.options;
var categoryPercentage = config.categoryPercentage;
var barPercentage = config.barPercentage;
var stacked = yScale.options.stacked;
var totalBarHeight = 0;
for (var i = 0; i < chart.data.datasets.length; i++) {
var bars = chart.getDatasetMeta(i).data;
for (var j = yScale.min; j <= yScale.max; j++) {
totalBarHeight += bars[j].height;
}
if (stacked) {
break;
}
}
var actualValue = totalBarHeight;
var expectedValue = yScale.height * categoryPercentage * barPercentage;
expect(actualValue).toBeCloseToPixel(expectedValue);
});
it('should correctly set bar height when min and max option is set.', function() {
this.config = {
type: 'bar',
data: this.data,
options: {
indexAxis: 'y',
scales: {
y: {
min: 'March',
max: 'May',
}
}
}
};
});
it('should correctly set bar height when scale are stacked with min and max options.', function() {
this.config = {
type: 'bar',
data: this.data,
options: {
indexAxis: 'y',
scales: {
x: {
stacked: true
},
y: {
min: 'March',
max: 'May',
}
}
}
};
});
});
describe('Bar thickness with a category scale', function() {
[undefined, 20].forEach(function(barThickness) {
describe('When barThickness is ' + barThickness, function() {
beforeEach(function() {
this.chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2]
}, {
data: [1, 2]
}],
labels: ['label1', 'label2', 'label3']
},
options: {
legend: false,
title: false,
datasets: {
bar: {
barThickness: barThickness
}
},
scales: {
x: {
id: 'x',
type: 'category',
},
y: {
type: 'linear',
}
}
}
});
});
it('should correctly set bar width', function() {
var chart = this.chart;
var expected, i, ilen, meta;
if (barThickness) {
expected = barThickness;
} else {
var scale = chart.scales.x;
var options = Chart.defaults.datasets.bar;
var categoryPercentage = options.categoryPercentage;
var barPercentage = options.barPercentage;
var tickInterval = scale.getPixelForTick(1) - scale.getPixelForTick(0);
expected = tickInterval * categoryPercentage / 2 * barPercentage;
}
for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
meta = chart.getDatasetMeta(i);
expect(meta.data[0].width).toBeCloseToPixel(expected);
expect(meta.data[1].width).toBeCloseToPixel(expected);
}
});
it('should correctly set bar width if maxBarThickness is specified', function() {
var chart = this.chart;
var i, ilen, meta;
chart.data.datasets[0].maxBarThickness = 10;
chart.data.datasets[1].maxBarThickness = 10;
chart.update();
for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
meta = chart.getDatasetMeta(i);
expect(meta.data[0].width).toBeCloseToPixel(10);
expect(meta.data[1].width).toBeCloseToPixel(10);
}
});
});
});
});
it('minBarLength settings should be used on Y axis on bar chart', function() {
var minBarLength = 4;
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
minBarLength: minBarLength,
data: [0.05, -0.05, 10, 15, 20, 25, 30, 35]
}]
}
});
var data = chart.getDatasetMeta(0).data;
var halfBaseLine = chart.scales.y.getLineWidthForValue(0) / 2;
expect(data[0].base - minBarLength + halfBaseLine).toEqual(data[0].y);
expect(data[1].base + minBarLength - halfBaseLine).toEqual(data[1].y);
});
it('minBarLength settings should be used on X axis on horizontal bar chart', function() {
var minBarLength = 4;
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
indexAxis: 'y',
minBarLength: minBarLength,
data: [0.05, -0.05, 10, 15, 20, 25, 30, 35]
}]
}
});
var data = chart.getDatasetMeta(0).data;
var halfBaseLine = chart.scales.x.getLineWidthForValue(0) / 2;
expect(data[0].base + minBarLength - halfBaseLine).toEqual(data[0].x);
expect(data[1].base - minBarLength + halfBaseLine).toEqual(data[1].x);
});
it('should respect the data visibility settings', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
datasets: [{
data: [1, 2, 3, 4]
}],
labels: ['A', 'B', 'C', 'D']
},
options: {
plugins: {
legend: false,
title: false
},
scales: {
x: {
type: 'category',
display: false
},
y: {
type: 'linear',
display: false,
}
}
}
});
var data = chart.getDatasetMeta(0).data;
expect(data[0].base).toBeCloseToPixel(512);
expect(data[0].y).toBeCloseToPixel(384);
chart.toggleDataVisibility(0);
chart.update();
data = chart.getDatasetMeta(0).data;
expect(data[0].base).toBeCloseToPixel(512);
expect(data[0].y).toBeCloseToPixel(512);
});
describe('Float bar', function() {
it('Should return correct values from getMinMax', function() {
var chart = window.acquireChart({
type: 'bar',
data: {
labels: ['a'],
datasets: [{
data: [[10, -10]]
}]
}
});
expect(chart.scales.y.getMinMax()).toEqual({min: -10, max: 10});
});
});
describe('clip', function() {
it('Should not use ctx.clip when clip=false', function() {
var ctx = window.createMockContext();
ctx.resetTransform = function() {};
var chart = window.acquireChart({
type: 'bar',
data: {
labels: ['a', 'b', 'c'],
datasets: [{
data: [1, 2, 3],
clip: false
}]
}
});
var orig = chart.ctx;
// Draw on mock context
chart.ctx = ctx;
chart.draw();
chart.ctx = orig;
expect(ctx.getCalls().filter(x => x.name === 'clip').length).toEqual(0);
});
});
it('should not crash with skipNull and uneven datasets', function() {
function unevenChart() {
window.acquireChart({
type: 'bar',
data: {
labels: [1, 2],
datasets: [
{data: [1, 2]},
{data: [1, 2, 3]},
]
},
options: {
skipNull: true,
}
});
}
expect(unevenChart).not.toThrow();
});
it('should not override tooltip title and label callbacks', async() => {
const chart = window.acquireChart({
type: 'bar',
data: {
labels: ['Label 1', 'Label 2'],
datasets: [{
data: [21, 79],
label: 'Dataset 1'
}, {
data: [33, 67],
label: 'Dataset 2'
}]
},
options: {
responsive: true,
maintainAspectRatio: true,
}
});
const {tooltip} = chart;
const point = chart.getDatasetMeta(0).data[0];
await jasmine.triggerMouseEvent(chart, 'mousemove', point);
expect(tooltip.title).toEqual(['Label 1']);
expect(tooltip.body).toEqual([{
before: [],
lines: ['Dataset 1: 21'],
after: []
}]);
chart.options.plugins.tooltip = {mode: 'dataset'};
chart.update();
await jasmine.triggerMouseEvent(chart, 'mousemove', point);
expect(tooltip.title).toEqual(['Dataset 1']);
expect(tooltip.body).toEqual([{
before: [],
lines: ['Label 1: 21'],
after: []
}, {
before: [],
lines: ['Label 2: 79'],
after: []
}]);
});
});
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