69 lines
1.9 KiB
JavaScript
69 lines
1.9 KiB
JavaScript
const assert = require('assert')
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const clone = require('clone')
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const Migrator = require('../../app/scripts/lib/migrator/')
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const liveMigrations = require('../../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 = clone(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 = clone(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 = clone(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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const firstTimeState = {
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meta: { version: 0 },
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data: require('../../app/scripts/first-time-state'),
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}
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describe('Migrator', () => {
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const migrator = new Migrator({ migrations: stubMigrations })
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it('migratedData version should be version 3', (done) => {
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migrator.migrateData(versionedData)
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.then((migratedData) => {
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assert.equal(migratedData.meta.version, stubMigrations[2].version)
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done()
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}).catch(done)
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})
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it('should match the last version in live migrations', (done) => {
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const migrator = new Migrator({ migrations: liveMigrations })
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migrator.migrateData(firstTimeState)
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.then((migratedData) => {
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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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done()
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}).catch(done)
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})
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it('should emit an error', function (done) {
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this.timeout(15000)
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const migrator = new Migrator({ migrations: [{ version: 1, migrate: async () => { throw new Error('test') } } ] })
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migrator.on('error', () => done())
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migrator.migrateData({ meta: {version: 0} })
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.then((migratedData) => {
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}).catch(done)
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})
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})
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