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82 lines
3 KiB
TypeScript
82 lines
3 KiB
TypeScript
// @vitest-environment node
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import { createHash } from 'node:crypto'
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import { readFileSync } from 'node:fs'
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import { describe, expect, it } from 'vitest'
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import {
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bahiaMunicipalityCodes,
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codeForMunicipality,
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municipalityForCode,
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} from '@/lib/bahiaMunicipalityCodes'
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import { bahiaMunicipalities } from '@/lib/bahiaTerritories'
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type OfficialEvidence = {
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municipalityCount: number
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assignments: Array<{ municipality: string; code: string }>
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evidenceSha256: string
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}
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const officialEvidence = JSON.parse(
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readFileSync(
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new URL('../fixtures/bahia-municipality-codes.official.json', import.meta.url),
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'utf8',
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),
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) as OfficialEvidence
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describe('Bahia municipality name → IBGE code mapping', () => {
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it('covers all 417 Bahia municipalities with 7-digit BA codes', () => {
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expect(Object.keys(bahiaMunicipalityCodes)).toHaveLength(417)
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expect(bahiaMunicipalities).toHaveLength(417)
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expect(new Set(Object.keys(bahiaMunicipalityCodes))).toHaveLength(417)
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expect(new Set(Object.values(bahiaMunicipalityCodes))).toHaveLength(417)
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for (const city of bahiaMunicipalities) {
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const code = bahiaMunicipalityCodes[city]
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expect(code, city).toBeDefined()
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expect(code).toMatch(/^29\d{5}$/)
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}
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})
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it('is a bijection with the canonical bahiaMunicipalities set', () => {
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expect(
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Object.keys(bahiaMunicipalityCodes).sort((left, right) => left.localeCompare(right, 'pt-BR')),
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).toEqual([...bahiaMunicipalities].sort((left, right) => left.localeCompare(right, 'pt-BR')))
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})
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it('matches the independently downloaded official municipality→code evidence', () => {
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expect(officialEvidence.municipalityCount).toBe(417)
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expect(
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officialEvidence.assignments.map(({ municipality, code }) => ({ municipality, code })),
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).toEqual(
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Object.entries(bahiaMunicipalityCodes)
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.sort(([left], [right]) => left.localeCompare(right, 'pt-BR'))
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.map(([municipality, code]) => ({ municipality, code })),
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)
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})
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it('matches every official assignment by a fixed evidence checksum', () => {
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const assignmentRows = Object.entries(bahiaMunicipalityCodes)
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.sort(([left], [right]) => left.localeCompare(right, 'pt-BR'))
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.map(([municipality, code]) => `M\t${municipality}\t${code}\n`)
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.join('')
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expect(createHash('sha256').update(assignmentRows).digest('hex')).toBe(
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officialEvidence.evidenceSha256,
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)
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})
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it('supports bidirectional lookups', () => {
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expect(codeForMunicipality('Salvador')).toBe('2927408')
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expect(codeForMunicipality('Feira de Santana')).toBe('2910800')
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expect(codeForMunicipality("Dias d'Ávila")).toBe('2910057')
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expect(codeForMunicipality('Araças')).toBe('2902054')
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expect(codeForMunicipality('Município inexistente')).toBeUndefined()
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expect(codeForMunicipality('')).toBeUndefined()
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expect(municipalityForCode('2927408')).toBe('Salvador')
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expect(municipalityForCode('2910800')).toBe('Feira de Santana')
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expect(municipalityForCode('0000000')).toBeUndefined()
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})
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})
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