pzp-db/test/erase.test.js

104 lines
2.7 KiB
JavaScript

const test = require('node:test')
const assert = require('node:assert')
const path = require('node:path')
const os = require('node:os')
const p = require('node:util').promisify
const rimraf = require('rimraf')
const SecretStack = require('secret-stack')
const AAOL = require('async-append-only-log')
const push = require('push-stream')
const caps = require('ssb-caps')
const Keypair = require('ppppp-keypair')
const DIR = path.join(os.tmpdir(), 'ppppp-db-erase')
rimraf.sync(DIR)
test('erase', async (t) => {
const keypair = Keypair.generate('ed25519', 'alice')
const peer = SecretStack({ appKey: caps.shs })
.use(require('../lib'))
.call(null, { keypair, path: DIR })
await peer.db.loaded()
const id = (await p(peer.db.identity.create)(null)).hash
const msgHashes = []
for (let i = 0; i < 5; i++) {
const rec = await p(peer.db.feed.publish)({
identity: id,
domain: 'post',
data: { text: 'm' + i },
})
msgHashes.push(rec.hash)
}
const before = []
for (const msg of peer.db.msgs()) {
if (msg.data && msg.metadata.identity) before.push(msg.data.text)
}
assert.deepEqual(
before,
['m0', 'm1', 'm2', 'm3', 'm4'],
'5 msgs before the erase'
)
await p(peer.db.erase)(msgHashes[2])
const after = []
for (const msg of peer.db.msgs()) {
if (msg.data && msg.metadata.identity) after.push(msg.data.text)
}
assert.deepEqual(after, ['m0', 'm1', 'm3', 'm4'], '4 msgs after the erase')
const after2 = []
for (const msg of peer.db.msgs()) {
for (const tangleId in msg.metadata.tangles) {
after2.push(msg.metadata.tangles[tangleId].depth)
}
}
assert.deepEqual(after2, [1, 2, 3, 4, 5], '5 metadata exists after the erase')
await p(peer.close)(true)
// FIXME:
// const log = AAOL(path.join(DIR, 'db.bin'), {
// cacheSize: 1,
// blockSize: 64 * 1024,
// codec: {
// encode(msg) {
// return Buffer.from(JSON.stringify(msg), 'utf8')
// },
// decode(buf) {
// return JSON.parse(buf.toString('utf8'))
// },
// },
// })
// const persistedMsgs = await new Promise((resolve, reject) => {
// let persistedMsgs = []
// log.stream({ offsets: true, values: true, sizes: true }).pipe(
// push.drain(
// function drainEach({ offset, value, size }) {
// if (value) {
// persistedMsgs.push(value.msg)
// }
// },
// function drainEnd(err) {
// if (err) return reject(err)
// resolve(persistedMsgs)
// }
// )
// )
// })
// t.deepEqual(
// persistedMsgs.filter((msg) => msg.content).map((msg) => msg.content.text),
// ['m0', 'm1', 'm3', 'm4'],
// 'msgs in disk after the delete'
// )
})