314 lines
10 KiB
JavaScript
314 lines
10 KiB
JavaScript
'use strict'
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const assert = require('assert')
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const mapSeries = require('p-map-series')
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const rmrf = require('rimraf')
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const path = require('path')
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const OrbitDB = require('../src/OrbitDB')
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const Cache = require('orbit-db-cache')
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const localdown = require('localstorage-down')
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const Storage = require('orbit-db-storage-adapter')
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// Include test utilities
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const {
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config,
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startIpfs,
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stopIpfs,
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testAPIs
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} = require('orbit-db-test-utils')
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const dbPath = './orbitdb/tests/persistency'
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const ipfsPath = './orbitdb/tests/persistency/ipfs'
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const tests = [
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{
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title: 'Persistency',
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orbitDBConfig: { directory: path.join(dbPath, '1') }
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},
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{
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title: 'Persistency with custom cache',
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type: "custom",
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orbitDBConfig: { directory: path.join(dbPath, '1') }
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}
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]
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Object.keys(testAPIs).forEach(API => {
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tests.forEach(test => {
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describe(`orbit-db - ${test.title} (${API})`, function() {
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this.timeout(config.timeout)
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const entryCount = 65
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let ipfsd, ipfs, orbitdb1, db, address
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before(async () => {
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const options = Object.assign({}, test.orbitDBConfig)
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if(test.type === "custom") {
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const customStorage = Storage(localdown)
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const customStore = await customStorage.createStore(dbPath)
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options.cache = new Cache(customStore)
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}
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config.daemon1.repo = ipfsPath
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rmrf.sync(config.daemon1.repo)
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rmrf.sync(dbPath)
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ipfsd = await startIpfs(API, config.daemon1)
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ipfs = ipfsd.api
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orbitdb1 = await OrbitDB.createInstance(ipfs, options)
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})
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after(async () => {
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if(orbitdb1)
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await orbitdb1.stop()
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if (ipfsd)
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await stopIpfs(ipfsd)
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})
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describe('load', function() {
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beforeEach(async () => {
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const dbName = new Date().getTime().toString()
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const entryArr = []
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for (let i = 0; i < entryCount; i ++)
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entryArr.push(i)
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db = await orbitdb1.eventlog(dbName)
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address = db.address.toString()
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await mapSeries(entryArr, (i) => db.add('hello' + i))
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await db.close()
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db = null
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})
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afterEach(async () => {
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await db.drop()
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})
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it('loads database from local cache', async () => {
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db = await orbitdb1.eventlog(address)
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await db.load()
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount)
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assert.equal(items[0].payload.value, 'hello0')
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assert.equal(items[items.length - 1].payload.value, 'hello' + (entryCount - 1))
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})
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it('loads database partially', async () => {
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const amount = 33
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db = await orbitdb1.eventlog(address)
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await db.load(amount)
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, amount)
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assert.equal(items[0].payload.value, 'hello' + (entryCount - amount))
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assert.equal(items[1].payload.value, 'hello' + (entryCount - amount + 1))
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assert.equal(items[items.length - 1].payload.value, 'hello' + (entryCount - 1))
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})
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it('load and close several times', async () => {
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const amount = 8
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for (let i = 0; i < amount; i ++) {
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db = await orbitdb1.eventlog(address)
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await db.load()
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount)
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assert.equal(items[0].payload.value, 'hello0')
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assert.equal(items[1].payload.value, 'hello1')
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assert.equal(items[items.length - 1].payload.value, 'hello' + (entryCount - 1))
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await db.close()
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}
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})
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it('closes database while loading', async () => {
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db = await orbitdb1.eventlog(address)
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await new Promise(async (resolve, reject) => {
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// don't wait for load to finish
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db.load().catch(e => {
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if (e.toString() !== 'ReadError: Database is not open') {
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reject(e)
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} else {
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assert.equal(db._cache.store, null)
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resolve()
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}
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})
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await db.close()
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})
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})
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it('load, add one, close - several times', async () => {
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const amount = 8
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for (let i = 0; i < amount; i ++) {
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db = await orbitdb1.eventlog(address)
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await db.load()
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await db.add('hello' + (entryCount + i))
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount + i + 1)
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assert.equal(items[items.length - 1].payload.value, 'hello' + (entryCount + i))
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await db.close()
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}
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})
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it('loading a database emits \'ready\' event', async () => {
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db = await orbitdb1.eventlog(address)
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return new Promise(async (resolve) => {
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db.events.on('ready', () => {
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount)
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assert.equal(items[0].payload.value, 'hello0')
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assert.equal(items[items.length - 1].payload.value, 'hello' + (entryCount - 1))
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resolve()
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})
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await db.load()
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})
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})
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it('loading a database emits \'load.progress\' event', async () => {
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db = await orbitdb1.eventlog(address)
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return new Promise(async (resolve, reject) => {
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let count = 0
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db.events.on('load.progress', (address, hash, entry) => {
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count ++
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try {
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assert.equal(address, db.address.toString())
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const { progress, max } = db.replicationStatus
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assert.equal(max, entryCount)
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assert.equal(progress, count)
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assert.notEqual(hash, null)
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assert.notEqual(entry, null)
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if (progress === entryCount && count === entryCount) {
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setTimeout(() => {
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resolve()
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}, 200)
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}
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} catch (e) {
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reject(e)
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}
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})
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// Start loading the database
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await db.load()
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})
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})
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})
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describe('load from empty snapshot', function() {
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it('loads database from an empty snapshot', async () => {
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db = await orbitdb1.eventlog('empty-snapshot')
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address = db.address.toString()
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await db.saveSnapshot()
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await db.close()
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db = await orbitdb1.open(address)
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await db.loadFromSnapshot()
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, 0)
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})
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})
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describe('load from snapshot', function() {
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beforeEach(async () => {
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const dbName = new Date().getTime().toString()
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const entryArr = []
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for (let i = 0; i < entryCount; i ++)
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entryArr.push(i)
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db = await orbitdb1.eventlog(dbName)
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address = db.address.toString()
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await mapSeries(entryArr, (i) => db.add('hello' + i))
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await db.saveSnapshot()
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await db.close()
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db = null
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})
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afterEach(async () => {
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await db.drop()
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})
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it('loads database from snapshot', async () => {
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db = await orbitdb1.eventlog(address)
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await db.loadFromSnapshot()
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount)
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assert.equal(items[0].payload.value, 'hello0')
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assert.equal(items[entryCount - 1].payload.value, 'hello' + (entryCount - 1))
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})
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it('load, add one and save snapshot several times', async () => {
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const amount = 4
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for (let i = 0; i < amount; i ++) {
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db = await orbitdb1.eventlog(address)
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await db.loadFromSnapshot()
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await db.add('hello' + (entryCount + i))
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount + i + 1)
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assert.equal(items[0].payload.value, 'hello0')
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assert.equal(items[items.length - 1].payload.value, 'hello' + (entryCount + i))
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await db.saveSnapshot()
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await db.close()
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}
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})
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it('throws an error when trying to load a missing snapshot', async () => {
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db = await orbitdb1.eventlog(address)
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await db.drop()
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db = null
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db = await orbitdb1.eventlog(address)
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let err
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try {
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await db.loadFromSnapshot()
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} catch (e) {
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err = e.toString()
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}
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assert.equal(err, `Error: Snapshot for ${address} not found!`)
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})
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it('loading a database emits \'ready\' event', async () => {
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db = await orbitdb1.eventlog(address)
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return new Promise(async (resolve) => {
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db.events.on('ready', () => {
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, entryCount)
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assert.equal(items[0].payload.value, 'hello0')
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assert.equal(items[entryCount - 1].payload.value, 'hello' + (entryCount - 1))
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resolve()
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})
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await db.loadFromSnapshot()
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})
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})
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it('loading a database emits \'load.progress\' event', async () => {
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db = await orbitdb1.eventlog(address)
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return new Promise(async (resolve, reject) => {
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let count = 0
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db.events.on('load.progress', (address, hash, entry) => {
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count ++
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try {
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assert.equal(address, db.address.toString())
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const { progress, max } = db.replicationStatus
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assert.equal(max, entryCount)
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assert.equal(progress, count)
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assert.notEqual(hash, null)
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assert.notEqual(entry, null)
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if (progress === entryCount && count === entryCount) {
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resolve()
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}
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} catch (e) {
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reject(e)
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}
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})
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// Start loading the database
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await db.loadFromSnapshot()
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})
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})
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})
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})
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})
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})
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