85 lines
2.7 KiB
JavaScript
85 lines
2.7 KiB
JavaScript
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import {
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getAverageByMonth,
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extractValues,
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sortByDate,
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} from '~/analytics/instance_statistics/utils';
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import {
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mockCountsData1,
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mockCountsData2,
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countsMonthlyChartData1,
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countsMonthlyChartData2,
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} from './mock_data';
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describe('getAverageByMonth', () => {
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it('collects data into average by months', () => {
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expect(getAverageByMonth(mockCountsData1)).toStrictEqual(countsMonthlyChartData1);
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expect(getAverageByMonth(mockCountsData2)).toStrictEqual(countsMonthlyChartData2);
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});
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it('it transforms a data point to the first of the month', () => {
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const item = mockCountsData1[0];
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const firstOfTheMonth = item.recordedAt.replace(/-[0-9]{2}$/, '-01');
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expect(getAverageByMonth([item])).toStrictEqual([[firstOfTheMonth, item.count]]);
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});
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it('it uses sane defaults', () => {
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expect(getAverageByMonth()).toStrictEqual([]);
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});
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it('it errors when passing null', () => {
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expect(() => {
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getAverageByMonth(null);
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}).toThrow();
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});
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describe('when shouldRound = true', () => {
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const options = { shouldRound: true };
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it('rounds the averages', () => {
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const roundedData1 = countsMonthlyChartData1.map(([date, avg]) => [date, Math.round(avg)]);
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const roundedData2 = countsMonthlyChartData2.map(([date, avg]) => [date, Math.round(avg)]);
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expect(getAverageByMonth(mockCountsData1, options)).toStrictEqual(roundedData1);
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expect(getAverageByMonth(mockCountsData2, options)).toStrictEqual(roundedData2);
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});
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});
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});
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describe('extractValues', () => {
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it('extracts only requested values', () => {
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const data = { fooBar: { baz: 'quis' }, ignored: 'ignored' };
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expect(extractValues(data, ['fooBar'], 'foo', 'baz')).toEqual({ bazBar: 'quis' });
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});
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it('is able to extract multiple values', () => {
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const data = {
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fooBar: { baz: 'quis' },
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fooBaz: { baz: 'quis' },
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fooQuis: { baz: 'quis' },
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};
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expect(extractValues(data, ['fooBar', 'fooBaz', 'fooQuis'], 'foo', 'baz')).toEqual({
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bazBar: 'quis',
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bazBaz: 'quis',
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bazQuis: 'quis',
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});
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});
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it('returns empty data set when keys are not found', () => {
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const data = { foo: { baz: 'quis' }, ignored: 'ignored' };
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expect(extractValues(data, ['fooBar'], 'foo', 'baz')).toEqual({});
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});
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it('returns empty data when params are missing', () => {
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expect(extractValues()).toEqual({});
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});
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});
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describe('sortByDate', () => {
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it('sorts the array by date', () => {
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expect(sortByDate(mockCountsData1)).toStrictEqual([...mockCountsData1].reverse());
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});
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it('does not modify the original array', () => {
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expect(sortByDate(countsMonthlyChartData1)).not.toBe(countsMonthlyChartData1);
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});
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});
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