shlink-web-client/test/visits/helpers/DefaultChart.test.js

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import React from 'react';
import { shallow } from 'enzyme';
import { Doughnut, HorizontalBar } from 'react-chartjs-2';
import { keys, values } from 'ramda';
import DefaultChart from '../../../src/visits/helpers/DefaultChart';
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describe('<DefaultChart />', () => {
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let wrapper;
const stats = {
foo: 123,
bar: 456,
};
afterEach(() => wrapper && wrapper.unmount());
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it('renders Doughnut when is not a bar chart', () => {
wrapper = shallow(<DefaultChart title="The chart" stats={stats} />);
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const doughnut = wrapper.find(Doughnut);
const horizontal = wrapper.find(HorizontalBar);
const cols = wrapper.find('.col-sm-12');
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expect(doughnut).toHaveLength(1);
expect(horizontal).toHaveLength(0);
const { labels, datasets } = doughnut.prop('data');
const [{ title, data, backgroundColor, borderColor }] = datasets;
const { legend, legendCallback, scales } = doughnut.prop('options');
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expect(title).toEqual('The chart');
expect(labels).toEqual(keys(stats));
expect(data).toEqual(values(stats));
expect(datasets).toHaveLength(1);
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expect(backgroundColor).toEqual([
'#97BBCD',
'#F7464A',
'#46BFBD',
'#FDB45C',
'#949FB1',
'#57A773',
'#414066',
'#08B2E3',
'#B6C454',
'#DCDCDC',
'#463730',
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]);
expect(borderColor).toEqual('white');
expect(legend).toEqual({ display: false });
expect(typeof legendCallback).toEqual('function');
expect(scales).toBeUndefined();
expect(cols).toHaveLength(2);
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});
it('renders HorizontalBar when is not a bar chart', () => {
wrapper = shallow(<DefaultChart isBarChart title="The chart" stats={stats} />);
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const doughnut = wrapper.find(Doughnut);
const horizontal = wrapper.find(HorizontalBar);
const cols = wrapper.find('.col-sm-12');
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expect(doughnut).toHaveLength(0);
expect(horizontal).toHaveLength(1);
const { datasets: [{ backgroundColor, borderColor }] } = horizontal.prop('data');
const { legend, legendCallback, scales } = horizontal.prop('options');
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expect(backgroundColor).toEqual('rgba(70, 150, 229, 0.4)');
expect(borderColor).toEqual('rgba(70, 150, 229, 1)');
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expect(legend).toEqual({ display: false });
expect(legendCallback).toEqual(false);
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expect(scales).toEqual({
xAxes: [
{
ticks: { beginAtZero: true, precision: 0 },
stacked: true,
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},
],
yAxes: [{ stacked: true }],
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});
expect(cols).toHaveLength(1);
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});
it.each([
[{ foo: 23 }, [ 100, 456 ], [ 23, 0 ]],
[{ foo: 50 }, [ 73, 456 ], [ 50, 0 ]],
[{ bar: 45 }, [ 123, 411 ], [ 0, 45 ]],
[{ bar: 20, foo: 13 }, [ 110, 436 ], [ 13, 20 ]],
[ undefined, [ 123, 456 ], undefined ],
])('splits highlighted data from regular data', (highlightedStats, expectedData, expectedHighlightedData) => {
wrapper = shallow(<DefaultChart isBarChart title="The chart" stats={stats} highlightedStats={highlightedStats} />);
const horizontal = wrapper.find(HorizontalBar);
const { datasets: [{ data, label }, highlightedData ] } = horizontal.prop('data');
expect(label).toEqual(highlightedStats ? 'Non-selected' : 'Visits');
expect(data).toEqual(expectedData);
expectedHighlightedData && expect(highlightedData.data).toEqual(expectedHighlightedData);
!expectedHighlightedData && expect(highlightedData).toBeUndefined();
});
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});