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/*
* Copyright (c) 2020 BSI Business Systems Integration AG.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* BSI Business Systems Integration AG - initial API and implementation
*/
import {Chart, ChartJsRenderer} from '../../src/index';
describe('ChartJsRendererSpec', () => {
describe('_adjustGrid', () => {
let renderer = new ChartJsRenderer({}),
chartArea = {
top: 0,
bottom: 300,
left: 0,
right: 750
},
defaultConfig = {
data: {
datasets: [{
data: [11, 13, 17, 31, 37, 41, 43],
label: 'Dataset 1'
}]
}
},
defaultScalesConfig = $.extend(true, {}, defaultConfig, {
options: {
scales: {
xAxes: [{}],
yAxes: [{}]
}
}
}),
defaultScaleConfig = $.extend(true, {}, defaultConfig, {
options: {
scale: {}
}
});
it('bar chart, min/max is set on y axis', () => {
let config = $.extend(true, {}, defaultScalesConfig, {type: Chart.Type.BAR});
renderer._adjustGrid(config, chartArea);
expect(config.options.scales.xAxes[0]).toEqual({});
expect(config.options.scales.yAxes[0]).toEqual({
ticks: {
maxTicksLimit: 8,
suggestedMax: 45,
suggestedMin: 10
}
});
});
it('horizontal bar chart, min/max is set on x axis', () => {
let config = $.extend(true, {}, defaultScalesConfig, {type: Chart.Type.BAR_HORIZONTAL});
renderer._adjustGrid(config, chartArea);
expect(config.options.scales.xAxes[0]).toEqual({
ticks: {
maxTicksLimit: 5,
suggestedMax: 45,
suggestedMin: 10
}
});
expect(config.options.scales.yAxes[0]).toEqual({});
});
it('polar area chart, min/max is set on scale', () => {
let config = $.extend(true, {}, defaultScaleConfig, {type: Chart.Type.POLAR_AREA});
renderer._adjustGrid(config, chartArea);
expect(config.options.scale).toEqual({
ticks: {
maxTicksLimit: 4,
suggestedMax: 45,
suggestedMin: 10
}
});
});
it('bubble chart, min/max is set on x and y axis, axis without offset take max(r) into account', () => {
let config = $.extend(true, {}, defaultScalesConfig, {
type: Chart.Type.BUBBLE,
options: {
scales: {
xAxes: [
{
offset: true
}
]
}
}
});
config.data.datasets[0].data = [
{x: 11, y: 37, r: 47},
{x: 13, y: 17, r: 29},
{x: 17, y: 41, r: 19},
{x: 31, y: 11, r: 53},
{x: 37, y: 31, r: 13},
{x: 41, y: 43, r: 11},
{x: 43, y: 13, r: 37}
];
renderer._adjustGrid(config, chartArea);
let height = Math.abs(chartArea.top - chartArea.bottom),
padding = 53, // max(r)
maxY = 43,
minY = 11,
yValuePerPixel = (maxY - minY) / (height - 2 * padding),
yPaddingValue = yValuePerPixel * padding;
expect(config.options.scales.xAxes[0]).toEqual({
offset: true,
ticks: {
maxTicksLimit: 5,
suggestedMax: 46,
suggestedMin: 11
}
});
expect(config.options.scales.yAxes[0]).toEqual({
ticks: {
maxTicksLimit: 8,
suggestedMax: 43 + yPaddingValue,
suggestedMin: 11 - yPaddingValue
}
});
});
it('bubble chart, min/max is set on x and y axis, axis without offset take max(r) into account, axis with labelMap calculate exact min/max', () => {
let labelMap = {
11: 'Label 11',
13: 'Label 13',
17: 'Label 17',
31: 'Label 31',
37: 'Label 37',
41: 'Label 41',
43: 'Label 43'
},
config = $.extend(true, {}, defaultScalesConfig, {
type: Chart.Type.BUBBLE,
options: {
scales: {
xLabelMap: labelMap,
yLabelMap: labelMap,
xAxes: [
{
offset: true
}
]
}
}
});
config.data.datasets[0].data = [
{x: 11, y: 37, r: 47},
{x: 13, y: 17, r: 29},
{x: 17, y: 41, r: 19},
{x: 31, y: 11, r: 53},
{x: 37, y: 31, r: 13},
{x: 41, y: 43, r: 11},
{x: 43, y: 13, r: 37}
];
renderer._adjustGrid(config, chartArea);
expect(config.options.scales.xAxes[0]).toEqual({
offset: true,
ticks: {
maxTicksLimit: 5,
suggestedMax: 43,
suggestedMin: 11
}
});
expect(config.options.scales.yAxes[0]).toEqual({
ticks: {
maxTicksLimit: 8,
suggestedMax: 52,
suggestedMin: 2
}
});
});
});
describe('_adjustBubbleSizes', () => {
let renderer = new ChartJsRenderer({}),
chartArea = {
top: 0,
bottom: 300,
left: 0,
right: 750
},
defaultConfig = {
type: Chart.Type.BUBBLE,
data: {
datasets: [{
data: [
{z: 100},
{z: 81},
{z: 49},
{z: 25},
{z: 16}
],
label: 'Dataset 1'
}]
},
bubble: {}
};
it('neither sizeOfLargestBubble nor minBubbleSize is set', () => {
let config = $.extend(true, {}, defaultConfig);
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 10, z: 100},
{r: 9, z: 81},
{r: 7, z: 49},
{r: 5, z: 25},
{r: 4, z: 16}
]);
});
it('only sizeOfLargestBubble is set', () => {
let config = $.extend(true, {}, defaultConfig);
config.bubble.sizeOfLargestBubble = 20;
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 20, z: 100},
{r: 18, z: 81},
{r: 14, z: 49},
{r: 10, z: 25},
{r: 8, z: 16}
]);
});
it('only sizeOfLargestBubble is set, maxR equals 0', () => {
let config = $.extend(true, {}, defaultConfig);
config.bubble.sizeOfLargestBubble = 20;
config.data.datasets[0].data = [
{z: 0},
{z: 0},
{z: 0}
];
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 20, z: 0},
{r: 20, z: 0},
{r: 20, z: 0}
]);
});
it('only minBubbleSize is set', () => {
let config = $.extend(true, {}, defaultConfig);
config.bubble.minBubbleSize = 5;
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 12.5, z: 100},
{r: 11.25, z: 81},
{r: 8.75, z: 49},
{r: 6.25, z: 25},
{r: 5, z: 16}
]);
});
it('only minBubbleSize is set, minR equals 0', () => {
let config = $.extend(true, {}, defaultConfig);
config.bubble.minBubbleSize = 5;
config.data.datasets[0].data.push({z: 0});
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 15, z: 100},
{r: 14, z: 81},
{r: 12, z: 49},
{r: 10, z: 25},
{r: 9, z: 16},
{r: 5, z: 0}
]);
});
it('sizeOfLargestBubble and minBubbleSize are set, scaling is sufficient', () => {
let config = $.extend(true, {}, defaultConfig);
config.bubble.sizeOfLargestBubble = 20;
config.bubble.minBubbleSize = 5;
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 20, z: 100},
{r: 18, z: 81},
{r: 14, z: 49},
{r: 10, z: 25},
{r: 8, z: 16}
]);
});
it('sizeOfLargestBubble and minBubbleSize are set, scaling is not sufficient', () => {
let config = $.extend(true, {}, defaultConfig);
config.bubble.sizeOfLargestBubble = 20;
config.bubble.minBubbleSize = 5;
config.data.datasets[0].data.push({z: 1});
renderer._adjustBubbleSizes(config, chartArea);
expect(config.data.datasets[0].data).toEqual([
{r: 20, z: 100},
{r: 9 * (5 / 3) + (10 / 3), z: 81},
{r: 15, z: 49},
{r: 5 * (5 / 3) + (10 / 3), z: 25},
{r: 10, z: 16},
{r: 5, z: 1}
]);
});
});
});
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