mirror of https://codeberg.org/pzp/pzp-gc.git
100 lines
2.9 KiB
JavaScript
100 lines
2.9 KiB
JavaScript
const test = require('node:test')
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const assert = require('node:assert')
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const p = require('node:util').promisify
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const { createPeer } = require('./util')
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function getFields(msgs) {
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return msgs
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.map((msg) => msg.data?.update)
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.filter((x) => !!x)
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.map((x) => x.age ?? x.name)
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}
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function isErased(msg) {
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return !msg.data
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}
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function isDeleted(msg) {
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return !msg
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}
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function isPresent(msg) {
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return !!msg.data.update
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}
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test('record ghosts', async (t) => {
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const alice = createPeer({
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name: 'alice',
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gc: { maxLogBytes: 100 * 1024 * 1024 },
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record: { ghostSpan: 2 },
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})
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await alice.db.loaded()
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// Alice creates her own account
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const aliceID = await p(alice.db.account.create)({
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domain: 'account',
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_nonce: 'alice',
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})
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// Alice constructs a record
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await p(alice.record.load)(aliceID)
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await p(alice.record.update)('profile', { name: 'alice' })
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await p(alice.record.update)('profile', { age: 24 })
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await p(alice.record.update)('profile', { name: 'Alice' })
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await p(alice.record.update)('profile', { age: 25 })
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await p(alice.record.update)('profile', { name: 'ALICE' })
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const recordID = alice.record.getFeedID('profile')
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let mootID
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let msgID1
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let msgID2
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let msgID3
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let msgID4
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let msgID5
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for (const rec of alice.db.records()) {
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if (rec.msg.metadata.dataSize === 0) mootID = rec.id
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if (rec.msg.data?.update?.name === 'alice') msgID1 = rec.id
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if (rec.msg.data?.update?.age === 24) msgID2 = rec.id
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if (rec.msg.data?.update?.name === 'Alice') msgID3 = rec.id
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if (rec.msg.data?.update?.age === 25) msgID4 = rec.id
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if (rec.msg.data?.update?.name === 'ALICE') msgID5 = rec.id
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}
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// Assert situation before GC
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assert.deepEqual(
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getFields([...alice.db.msgs()]),
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['alice', 24, 'Alice', 25, 'ALICE'],
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'has all record msgs'
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)
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assert.ok(isErased(alice.db.get(mootID)), 'moot by def erased')
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assert.ok(isPresent(alice.db.get(msgID1)), 'msg1 exists')
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assert.ok(isPresent(alice.db.get(msgID2)), 'msg2 exists')
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assert.ok(isPresent(alice.db.get(msgID3)), 'msg3 exists')
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assert.ok(isPresent(alice.db.get(msgID4)), 'msg4 exists')
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assert.ok(isPresent(alice.db.get(msgID5)), 'msg5 exists')
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// Perform garbage collection
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alice.goals.set(aliceID, 'all')
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alice.goals.set(recordID, 'record')
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await p(alice.gc.forceImmediately)()
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// Assert situation after GC
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assert.deepEqual(
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getFields([...alice.db.msgs()]),
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[25, 'ALICE'],
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'alice has only field root msgs'
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)
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assert.ok(isErased(alice.db.get(mootID)), 'moot by def erased')
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assert.ok(isDeleted(alice.db.get(msgID1)), 'msg1 deleted')
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assert.ok(isDeleted(alice.db.get(msgID2)), 'msg2 deleted') // ghost!
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assert.ok(isErased(alice.db.get(msgID3)), 'msg3 erased')
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assert.ok(isPresent(alice.db.get(msgID4)), 'msg4 exists')
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assert.ok(isPresent(alice.db.get(msgID5)), 'msg5 exists')
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assert.deepEqual(alice.db.ghosts.get(recordID), [msgID2])
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await p(alice.close)(true)
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})
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