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const assert = require('assert')
const clone = require('clone')
const Migrator = require('../../app/scripts/lib/migrator/')
const migrations = [
{
version: 1,
migrate: (data) => {
// clone the data just like we do in migrations
const clonedData = clone(data)
clonedData.meta.version = 1
return Promise.resolve(clonedData)
},
},
{
version: 2,
migrate: (data) => {
const clonedData = clone(data)
clonedData.meta.version = 2
return Promise.resolve(clonedData)
},
},
{
version: 3,
migrate: (data) => {
const clonedData = clone(data)
clonedData.meta.version = 3
return Promise.resolve(clonedData)
},
},
]
const versionedData = {meta: {version: 0}, data: {hello: 'world'}}
describe('Migrator', () => {
const migrator = new Migrator({ migrations })
it('migratedData version should be version 3', (done) => {
migrator.migrateData(versionedData)
.then((migratedData) => {
assert.equal(migratedData.meta.version, migrations[2].version)
done()
}).catch(done)
})
})
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