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Copy pathdata-dir-switch.test.ts
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import assert from 'node:assert/strict'
import fs from 'node:fs'
import os from 'node:os'
import path from 'node:path'
import test from 'node:test'
import {
applyPendingNodeDataDirMigration,
createPendingDataDirMigration,
createNodeDataDirSwitch,
getPendingNodeDataDirMigration,
isExistingUserDataDir,
runPendingDataDirMigration,
} from './data-dir-switch'
import { applyPendingNodeDataDirMigrationIfNeeded, NodePathProvider } from './node-path-provider'
function makeTempDir(): string {
const baseDir = fs.existsSync('/private/tmp') ? '/private/tmp' : os.tmpdir()
return fs.mkdtempSync(path.join(baseDir, 'chatlab-data-switch-'))
}
function writeFile(filePath: string, content = 'data'): void {
fs.mkdirSync(path.dirname(filePath), { recursive: true })
fs.writeFileSync(filePath, content, 'utf-8')
}
test('createPendingDataDirMigration records a restart-time migration without mutating config', () => {
const pending = createPendingDataDirMigration({
from: '/old/data',
to: '/new/data',
migrate: true,
targetWasEmpty: true,
})
assert.equal(pending.from, '/old/data')
assert.equal(pending.to, '/new/data')
assert.equal(pending.migrate, true)
assert.equal(pending.deleteSourceOnSuccess, true)
assert.match(pending.createdAt, /^\d{4}-\d{2}-\d{2}T/)
})
test('runPendingDataDirMigration writes config only after copy succeeds', () => {
const root = makeTempDir()
const source = path.join(root, 'source')
const target = path.join(root, 'target')
writeFile(path.join(source, 'databases', 'session.db'), 'sqlite')
let configuredDir = source
let pendingCleared = false
let pendingDeleteDir: string | null = null
const result = runPendingDataDirMigration(
createPendingDataDirMigration({ from: source, to: target, migrate: true, targetWasEmpty: true }),
{
writeUserDataDir(dir) {
configuredDir = dir
},
clearPendingMigration() {
pendingCleared = true
},
markPendingDeleteDir(dir) {
pendingDeleteDir = dir
},
}
)
assert.equal(result.success, true)
assert.equal(configuredDir, target)
assert.equal(pendingCleared, true)
assert.equal(pendingDeleteDir, source)
assert.equal(fs.readFileSync(path.join(target, 'databases', 'session.db'), 'utf-8'), 'sqlite')
})
test('runPendingDataDirMigration keeps old config and pending task when copy fails', () => {
const root = makeTempDir()
const source = path.join(root, 'source')
const target = path.join(root, 'target')
writeFile(path.join(source, 'databases', 'session.db'), 'sqlite')
let configuredDir = source
let pendingCleared = false
const result = runPendingDataDirMigration(
createPendingDataDirMigration({ from: source, to: target, migrate: true, targetWasEmpty: true }),
{
copyDirMerge() {
return { copied: 0, skipped: 0, errors: ['copy failed'] }
},
writeUserDataDir(dir) {
configuredDir = dir
},
clearPendingMigration() {
pendingCleared = true
},
}
)
assert.equal(result.success, false)
assert.equal(configuredDir, source)
assert.equal(pendingCleared, false)
assert.equal(fs.existsSync(path.join(target, 'databases', 'session.db')), false)
})
test('runPendingDataDirMigration fails when source directory is missing', () => {
const root = makeTempDir()
const source = path.join(root, 'missing-source')
const target = path.join(root, 'target')
let configuredDir = source
let pendingCleared = false
const result = runPendingDataDirMigration(
createPendingDataDirMigration({ from: source, to: target, migrate: true, targetWasEmpty: true }),
{
writeUserDataDir(dir) {
configuredDir = dir
},
clearPendingMigration() {
pendingCleared = true
},
}
)
assert.equal(result.success, false)
assert.equal(configuredDir, source)
assert.equal(pendingCleared, false)
assert.equal(fs.existsSync(target), false)
})
test('isExistingUserDataDir accepts current user data layout without settings directory', () => {
const root = makeTempDir()
const dataDir = path.join(root, 'data')
writeFile(path.join(dataDir, '.chatlab'), 'ChatLab Data Directory')
fs.mkdirSync(path.join(dataDir, 'databases'), { recursive: true })
assert.equal(isExistingUserDataDir(dataDir), true)
})
test('createNodeDataDirSwitch accepts existing CLI data directories without marker', () => {
const root = makeTempDir()
const currentDir = path.join(root, 'current')
const targetDir = path.join(root, 'previous-cli-data')
writeFile(path.join(currentDir, 'databases', 'current.db'), 'sqlite')
writeFile(path.join(targetDir, 'databases', 'session.db'), 'sqlite')
const result = createNodeDataDirSwitch({
systemDir: path.join(root, 'system'),
currentDir,
targetDir,
migrate: true,
})
assert.equal(result.success, true)
assert.equal(result.requiresRelaunch, true)
})
test('NodePathProvider marks CLI-created data directories', () => {
const root = makeTempDir()
const dataDir = path.join(root, 'data')
const provider = new NodePathProvider(dataDir)
provider.ensureAllDirs()
assert.equal(fs.readFileSync(path.join(dataDir, '.chatlab'), 'utf-8'), 'ChatLab Data Directory')
})
test('createNodeDataDirSwitch writes pending migration under the system settings directory', () => {
const root = makeTempDir()
const systemDir = path.join(root, 'system')
const currentDir = path.join(root, 'current')
const targetDir = path.join(root, 'target')
writeFile(path.join(currentDir, 'databases', 'session.db'), 'sqlite')
const result = createNodeDataDirSwitch({ systemDir, currentDir, targetDir, migrate: true })
const pending = getPendingNodeDataDirMigration(systemDir)
assert.equal(result.success, true)
assert.equal(result.requiresRelaunch, true)
assert.equal(pending?.from, currentDir)
assert.equal(pending?.to, targetDir)
})
test('applyPendingNodeDataDirMigration deletes old data directory after successful migration to empty target', () => {
const root = makeTempDir()
const systemDir = path.join(root, 'system')
const currentDir = path.join(root, 'current')
const targetDir = path.join(root, 'target')
writeFile(path.join(currentDir, '.chatlab'), 'ChatLab Data Directory')
writeFile(path.join(currentDir, 'databases', 'session.db'), 'sqlite')
const switchResult = createNodeDataDirSwitch({ systemDir, currentDir, targetDir, migrate: true })
assert.equal(switchResult.success, true)
const writes: Array<{ section: string; key: string; value: unknown }> = []
const result = applyPendingNodeDataDirMigration(systemDir, {
writeConfigField(section, key, value) {
writes.push({ section, key, value })
},
})
assert.equal(result.success, true)
assert.equal(fs.existsSync(currentDir), false)
assert.equal(fs.readFileSync(path.join(targetDir, 'databases', 'session.db'), 'utf-8'), 'sqlite')
assert.equal(getPendingNodeDataDirMigration(systemDir), null)
assert.deepEqual(writes, [
{ section: 'data', key: 'user_data_dir', value: targetDir },
{ section: 'data', key: 'electron_migration_done', value: true },
])
})
test('createNodeDataDirSwitch rejects data directory changes while CHATLAB_DATA_DIR is active', () => {
const root = makeTempDir()
const result = createNodeDataDirSwitch({
systemDir: path.join(root, 'system'),
currentDir: path.join(root, 'current'),
targetDir: path.join(root, 'target'),
migrate: true,
envDataDir: '/env/data',
})
assert.equal(result.success, false)
})
test('applyPendingNodeDataDirMigrationIfNeeded skips while CHATLAB_DATA_DIR is active', () => {
const originalEnvDir = process.env.CHATLAB_DATA_DIR
process.env.CHATLAB_DATA_DIR = '/env/data'
try {
const result = applyPendingNodeDataDirMigrationIfNeeded()
assert.equal(result.success, true)
assert.equal(result.skipped, true)
} finally {
if (originalEnvDir === undefined) {
delete process.env.CHATLAB_DATA_DIR
} else {
process.env.CHATLAB_DATA_DIR = originalEnvDir
}
}
})