mirror of
https://github.com/orbitdb/orbitdb.git
synced 2025-03-30 15:08:28 +00:00
367 lines
12 KiB
JavaScript
367 lines
12 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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// 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('./utils')
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const last = arr => arr[arr.length - 1]
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const dbPath = './orbitdb/tests/eventlog'
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const ipfsPath = './orbitdb/tests/eventlog/ipfs'
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Object.keys(testAPIs).forEach(API => {
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describe(`orbit-db - Log Database (${API})`, function() {
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this.timeout(config.timeout)
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let ipfsd, ipfs, orbitdb1, db
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before(async () => {
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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, { directory: path.join(dbPath, '1') })
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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('Eventlog', function () {
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it('creates and opens a database', async () => {
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db = await orbitdb1.eventlog('log database')
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assert.notEqual(db, null)
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assert.equal(db.type, 'eventlog')
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assert.equal(db.dbname, 'log database')
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})
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it('returns 0 items when it\'s a fresh database', async () => {
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db = await orbitdb1.eventlog('log database')
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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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it('returns the added entry\'s hash, 1 entry', async () => {
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db = await orbitdb1.eventlog('first database')
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const hash = await db.add('hello1')
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const items = db.iterator({ limit: -1 }).collect()
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assert.notEqual(hash, null)
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assert.equal(hash, last(items).hash)
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assert.equal(items.length, 1)
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})
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it('returns the added entry\'s hash, 2 entries', async () => {
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db = await orbitdb1.eventlog('first database')
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await db.load()
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const prevHash = db.iterator().collect()[0].hash
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const hash = await db.add('hello2')
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, 2)
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assert.notEqual(hash, null)
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assert.notEqual(hash, prevHash)
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assert.equal(hash, last(items).hash)
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})
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it('adds five items', async () => {
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db = await orbitdb1.eventlog('second database')
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await mapSeries([1, 2, 3, 4, 5], (i) => db.add('hello' + i))
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const items = db.iterator({ limit: -1 }).collect()
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assert.equal(items.length, 5)
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assert.equal(items[0].payload.value, 'hello1')
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assert.equal(last(items.map((f) => f.payload.value)), 'hello5')
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})
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it('adds an item that is > 256 bytes', async () => {
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db = await orbitdb1.eventlog('third database')
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let msg = Buffer.alloc(1024)
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msg.fill('a')
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const hash = await db.add(msg.toString())
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assert.notEqual(hash, null)
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assert.equal(hash.startsWith('zd'), true)
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assert.equal(hash.length, 49)
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})
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})
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describe('Iterator', function() {
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let hashes = []
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const itemCount = 5
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before(async () => {
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hashes = []
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db = await orbitdb1.eventlog('iterator tests')
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hashes = await mapSeries([0, 1, 2, 3, 4], (i) => db.add('hello' + i))
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})
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describe('Defaults', function() {
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it('returns an iterator', () => {
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const iter = db.iterator()
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const next = iter.next().value
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assert.notEqual(iter, null)
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assert.notEqual(next, null)
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})
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it('returns an item with the correct structure', () => {
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const iter = db.iterator()
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const next = iter.next().value
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assert.notEqual(next, null)
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assert.equal(next.hash.startsWith('zd'), true)
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assert.equal(next.payload.key, null)
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assert.equal(next.payload.value, 'hello4')
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})
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it('implements Iterator interface', () => {
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const iter = db.iterator({ limit: -1 })
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let messages = []
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for(let i of iter)
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messages.push(i.key)
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assert.equal(messages.length, hashes.length)
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})
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it('returns 1 item as default', () => {
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const iter = db.iterator()
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const first = iter.next().value
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const second = iter.next().value
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assert.equal(first.hash, hashes[hashes.length - 1])
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assert.equal(second, null)
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assert.equal(first.payload.value, 'hello4')
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})
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it('returns items in the correct order', () => {
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const amount = 3
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const iter = db.iterator({ limit: amount })
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let i = hashes.length - amount
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for(let item of iter) {
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assert.equal(item.payload.value, 'hello' + i)
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i ++
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}
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})
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})
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describe('Collect', function() {
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it('returns all items', () => {
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const messages = db.iterator({ limit: -1 }).collect()
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assert.equal(messages.length, hashes.length)
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assert.equal(messages[0].payload.value, 'hello0')
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assert.equal(messages[messages.length - 1].payload.value, 'hello4')
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})
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it('returns 1 item', () => {
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const messages = db.iterator().collect()
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assert.equal(messages.length, 1)
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})
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it('returns 3 items', () => {
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const messages = db.iterator({ limit: 3 }).collect()
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assert.equal(messages.length, 3)
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})
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})
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describe('Options: limit', function() {
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it('returns 1 item when limit is 0', () => {
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const iter = db.iterator({ limit: 0 })
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const first = iter.next().value
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const second = iter.next().value
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assert.equal(first.hash, last(hashes))
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assert.equal(second, null)
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})
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it('returns 1 item when limit is 1', () => {
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const iter = db.iterator({ limit: 1 })
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const first = iter.next().value
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const second = iter.next().value
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assert.equal(first.hash, last(hashes))
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assert.equal(second, null)
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})
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it('returns 3 items', () => {
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const iter = db.iterator({ limit: 3 })
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const first = iter.next().value
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const second = iter.next().value
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const third = iter.next().value
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const fourth = iter.next().value
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assert.equal(first.hash, hashes[hashes.length - 3])
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assert.equal(second.hash, hashes[hashes.length - 2])
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assert.equal(third.hash, hashes[hashes.length - 1])
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assert.equal(fourth, null)
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})
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it('returns all items', () => {
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const messages = db.iterator({ limit: -1 })
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.collect()
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.map((e) => e.hash)
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messages.reverse()
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assert.equal(messages.length, hashes.length)
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assert.equal(messages[0], hashes[hashes.length - 1])
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})
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it('returns all items when limit is bigger than -1', () => {
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const messages = db.iterator({ limit: -300 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, hashes.length)
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assert.equal(messages[0], hashes[0])
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})
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it('returns all items when limit is bigger than number of items', () => {
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const messages = db.iterator({ limit: 300 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, hashes.length)
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assert.equal(messages[0], hashes[0])
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})
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})
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describe('Option: ranges', function() {
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describe('gt & gte', function() {
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it('returns 1 item when gte is the head', () => {
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const messages = db.iterator({ gte: last(hashes), limit: -1 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, 1)
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assert.equal(messages[0], last(hashes))
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})
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it('returns 0 items when gt is the head', () => {
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const messages = db.iterator({ gt: last(hashes) }).collect()
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assert.equal(messages.length, 0)
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})
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it('returns 2 item when gte is defined', () => {
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const gte = hashes[hashes.length - 2]
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const messages = db.iterator({ gte: gte, limit: -1 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, 2)
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assert.equal(messages[0], hashes[hashes.length - 2])
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assert.equal(messages[1], hashes[hashes.length - 1])
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})
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it('returns all items when gte is the root item', () => {
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const messages = db.iterator({ gte: hashes[0], limit: -1 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, hashes.length)
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assert.equal(messages[0], hashes[0])
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assert.equal(messages[messages.length - 1], last(hashes))
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})
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it('returns items when gt is the root item', () => {
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const messages = db.iterator({ gt: hashes[0], limit: -1 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, itemCount - 1)
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assert.equal(messages[0], hashes[1])
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assert.equal(messages[3], last(hashes))
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})
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it('returns items when gt is defined', () => {
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const messages = db.iterator({ limit: -1})
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.collect()
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.map((e) => e.hash)
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const gt = messages[2]
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const messages2 = db.iterator({ gt: gt, limit: 100 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages2.length, 2)
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assert.equal(messages2[0], messages[messages.length - 2])
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assert.equal(messages2[1], messages[messages.length - 1])
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})
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})
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describe('lt & lte', function() {
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it('returns one item after head when lt is the head', () => {
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const messages = db.iterator({ lt: last(hashes) })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, 1)
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assert.equal(messages[0], hashes[hashes.length - 2])
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})
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it('returns all items when lt is head and limit is -1', () => {
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const messages = db.iterator({ lt: last(hashes), limit: -1 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, hashes.length - 1)
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assert.equal(messages[0], hashes[0])
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assert.equal(messages[messages.length - 1], hashes[hashes.length - 2])
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})
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it('returns 3 items when lt is head and limit is 3', () => {
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const messages = db.iterator({ lt: last(hashes), limit: 3 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, 3)
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assert.equal(messages[0], hashes[hashes.length - 4])
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assert.equal(messages[2], hashes[hashes.length - 2])
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})
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it('returns null when lt is the root item', () => {
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const messages = db.iterator({ lt: hashes[0] }).collect()
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assert.equal(messages.length, 0)
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})
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it('returns one item when lte is the root item', () => {
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const messages = db.iterator({ lte: hashes[0] })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, 1)
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assert.equal(messages[0], hashes[0])
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})
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it('returns all items when lte is the head', () => {
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const messages = db.iterator({ lte: last(hashes), limit: -1 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, itemCount)
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assert.equal(messages[0], hashes[0])
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assert.equal(messages[4], last(hashes))
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})
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it('returns 3 items when lte is the head', () => {
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const messages = db.iterator({ lte: last(hashes), limit: 3 })
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.collect()
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.map((e) => e.hash)
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assert.equal(messages.length, 3)
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assert.equal(messages[0], hashes[hashes.length - 3])
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assert.equal(messages[1], hashes[hashes.length - 2])
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assert.equal(messages[2], last(hashes))
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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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