133 lines
3.7 KiB
JavaScript
133 lines
3.7 KiB
JavaScript
import { expect } from 'chai'
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import {
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concatTemporals,
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createTemporalEvaluation,
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groupByYear,
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zipTemporals
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} from '../source/temporal'
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const neverEnding = value => [{ start: null, end: null, value: value }]
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describe('Periods : zip', () => {
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it('should zip two empty temporalValue', () => {
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const result = zipTemporals([], [])
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expect(result).to.deep.equal([])
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})
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it('should zip constant temporalValue', () => {
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const result = zipTemporals(neverEnding(1), neverEnding(2))
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expect(result).to.deep.equal(neverEnding([1, 2]))
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})
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it('should zip changing temporalValue', () => {
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const value1 = createTemporalEvaluation(true, {
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start: null,
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end: '01/08/2020'
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})
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const value2 = neverEnding(1)
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expect(zipTemporals(value1, value2)).to.deep.equal([
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{ start: null, end: '01/08/2020', value: [true, 1] },
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{ start: '02/08/2020', end: null, value: [false, 1] }
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])
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expect(zipTemporals(value2, value1)).to.deep.equal([
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{ start: null, end: '01/08/2020', value: [1, true] },
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{ start: '02/08/2020', end: null, value: [1, false] }
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])
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})
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it('should zip two overlapping temporalValue', () => {
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const value1 = createTemporalEvaluation(1, {
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start: '01/07/2019',
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end: '30/06/2020'
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})
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const value2 = createTemporalEvaluation(2, {
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start: '01/01/2019',
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end: '31/12/2019'
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})
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expect(zipTemporals(value1, value2)).to.deep.equal([
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{ start: null, end: '31/12/2018', value: [false, false] },
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{ start: '01/01/2019', end: '30/06/2019', value: [false, 2] },
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{ start: '01/07/2019', end: '31/12/2019', value: [1, 2] },
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{ start: '01/01/2020', end: '30/06/2020', value: [1, false] },
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{ start: '01/07/2020', end: null, value: [false, false] }
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])
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})
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})
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describe('Periods : concat', () => {
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it('should merge concat overlapping temporalValue', () => {
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const value1 = createTemporalEvaluation(10)
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const value2 = [
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{ start: null, end: '14/04/2019', value: 100 },
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{ start: '15/04/2019', end: '08/08/2019', value: 2000 },
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{ start: '09/08/2019', end: null, value: 200 }
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]
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expect(concatTemporals([value1, value2])).to.deep.equal([
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{ start: null, end: '14/04/2019', value: [10, 100] },
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{ start: '15/04/2019', end: '08/08/2019', value: [10, 2000] },
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{ start: '09/08/2019', end: null, value: [10, 200] }
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])
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})
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})
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describe('Periods : groupByYear', () => {
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const invariants = temporalYear => {
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const startDate = temporalYear[0].start
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const endDate = temporalYear.slice(-1)[0].end
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expect(
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startDate === null || startDate.startsWith('01/01'),
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'starts at the beginning of a year'
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)
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expect(
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endDate === null || endDate.startsWith('31/12'),
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'stops at the end of a year'
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)
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}
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it('should handle constant value', () => {
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const value = createTemporalEvaluation(10)
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expect(groupByYear(value)).to.deep.equal([value])
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})
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it('should handle changing value', () => {
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const value = createTemporalEvaluation(10, {
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start: '06/06/2020',
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end: '20/12/2020'
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})
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const result = groupByYear(value)
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expect(result).to.have.length(3)
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result.forEach(invariants)
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})
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it('should handle changing value over several years', () => {
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const value = createTemporalEvaluation(10, {
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start: '06/06/2020',
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end: '20/12/2022'
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})
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const result = groupByYear(value)
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expect(result).to.have.length(5)
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result.forEach(invariants)
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})
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it('should handle complex case', () => {
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const result = groupByYear(
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concatTemporals([
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createTemporalEvaluation(1, {
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start: '06/06/2020',
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end: '20/12/2022'
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}),
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createTemporalEvaluation(2, {
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start: '01/01/1991',
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end: '20/12/1992'
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}),
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createTemporalEvaluation(3, {
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start: '31/01/1990',
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end: '20/12/2021'
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}),
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createTemporalEvaluation(4, {
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start: '31/12/2020',
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end: '01/01/2021'
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})
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])
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)
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result.forEach(invariants)
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})
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})
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