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114 lines
3.3 KiB
114 lines
3.3 KiB
import fs from 'fs'
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import assert from 'assert'
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import { cloneDeep } from 'lodash'
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import Migrator from '../../../app/scripts/lib/migrator'
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import liveMigrations from '../../../app/scripts/migrations'
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const stubMigrations = [
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{
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version: 1,
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migrate: (data) => {
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// clone the data just like we do in migrations
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const clonedData = cloneDeep(data)
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clonedData.meta.version = 1
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return Promise.resolve(clonedData)
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},
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},
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{
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version: 2,
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migrate: (data) => {
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const clonedData = cloneDeep(data)
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clonedData.meta.version = 2
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return Promise.resolve(clonedData)
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},
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},
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{
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version: 3,
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migrate: (data) => {
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const clonedData = cloneDeep(data)
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clonedData.meta.version = 3
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return Promise.resolve(clonedData)
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},
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},
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]
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const versionedData = { meta: { version: 0 }, data: { hello: 'world' } }
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import data from '../../../app/scripts/first-time-state'
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const firstTimeState = {
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meta: { version: 0 },
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data,
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}
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describe('migrations', function () {
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describe('liveMigrations require list', function () {
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let migrationNumbers
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before(function () {
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const fileNames = fs.readdirSync('./app/scripts/migrations/')
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migrationNumbers = fileNames
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.reduce((acc, filename) => {
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const name = filename.split('.')[0]
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if (/^\d+$/u.test(name)) {
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acc.push(name)
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}
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return acc
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}, [])
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.map((num) => parseInt(num))
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})
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it('should include all migrations', function () {
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migrationNumbers.forEach((num) => {
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const migration = liveMigrations.find((m) => m.version === num)
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assert(migration, `migration not included in 'migrations/index.js': ${num}`)
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})
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})
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it('should have tests for all migrations', function () {
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const fileNames = fs.readdirSync('./test/unit/migrations/')
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const testNumbers = fileNames
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.reduce((acc, filename) => {
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const name = filename.split('-test.')[0]
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if (/^\d+$/u.test(name)) {
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acc.push(name)
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}
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return acc
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}, [])
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.map((num) => parseInt(num))
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migrationNumbers.forEach((num) => {
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if (num >= 33) {
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assert.ok(testNumbers.includes(num), `no test found for migration: ${num}`)
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}
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})
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})
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})
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describe('Migrator', function () {
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const migrator = new Migrator({ migrations: stubMigrations })
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it('migratedData version should be version 3', async function () {
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const migratedData = await migrator.migrateData(versionedData)
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assert.equal(migratedData.meta.version, stubMigrations[2].version)
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})
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it('should match the last version in live migrations', async function () {
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const migrator = new Migrator({ migrations: liveMigrations })
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const migratedData = await migrator.migrateData(firstTimeState)
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const last = liveMigrations.length - 1
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assert.equal(migratedData.meta.version, liveMigrations[last].version)
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})
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it('should emit an error', async function () {
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const migrator = new Migrator({
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migrations: [{
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version: 1,
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async migrate () {
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throw new Error('test')
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},
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}],
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})
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await assert.rejects(migrator.migrateData({ meta: { version: 0 } }))
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})
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})
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})
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