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deepseek-harness/packages/client/modules/tests/node-half.client.spec.ts
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TypeScript

/** Node-half composition diagnostics for package metadata and built client bundles. */
import { mkdirSync, mkdtempSync, realpathSync, rmSync, statSync, writeFileSync } from 'node:fs'
import type { IncomingMessage, ServerResponse } from 'node:http'
import { SourceMap } from 'node:module'
import { tmpdir } from 'node:os'
import { dirname, join } from 'node:path'
import { pathToFileURL } from 'node:url'
import { runInNewContext } from 'node:vm'
import { Context, type Fiber } from '@deepseek-ai/cordis'
import { afterEach, describe, expect, it, vi } from 'vitest'
import { renderIndexInjections, type WebServer, type WebRoute } from '@deepseek-ai/dsh-host-webserver'
import * as modulesClient from '../src/client/index.ts'
import { ClientModuleRegistry, bootInjections, orderByModuleGraph } from '../src/index.ts'
import type { ClientModuleLoaderTarget, WebBootEntry, WebBootGraph } from '../src/client/index.ts'
const MODULES_ID = '@deepseek-ai/dsh-client-modules'
const UI_RENDERER_ID = '@deepseek-ai/dsh-client-ui-renderer'
const comboUrl = (ids: readonly string[], rev: string): string =>
`/plugins/??${ids.map(id => `${id}/client.js`).join(',')}&rev=${rev}`
const mapUrl = (url: string): string => url.replace(/\/client\.js(?=,|&rev=)/g, '/client.js.map')
const BOOTSTRAP_URL = comboUrl([MODULES_ID], 'boot')
const APPLICATION_URL = comboUrl([UI_RENDERER_ID], 'app')
let root: string | undefined
afterEach(() => {
if (root !== undefined) rmSync(root, { recursive: true, force: true })
root = undefined
})
/** Create a resolvable package whose client export points at the returned path. */
function writePackage(
packageName: string,
metadata: Record<string, unknown> = { dsh: { client: { platform: 'web' } } },
): string {
root ??= realpathSync(mkdtempSync(join(tmpdir(), 'dsh-client-modules-')))
const pkgRoot = join(root, 'node_modules', ...packageName.split('/'))
const clientPath = join(pkgRoot, 'lib', 'client.js')
mkdirSync(pkgRoot, { recursive: true })
writeFileSync(join(pkgRoot, 'package.json'), JSON.stringify({
name: packageName,
exports: {
'./client': './lib/client.js',
'./package.json': './package.json',
},
...metadata,
}))
return clientPath
}
/** Create a built package with the supplied client declaration. */
function writeBuiltPackage(packageName: string, client: Record<string, unknown>): void {
const clientPath = writePackage(packageName, { dsh: { client: { platform: 'web', ...client } } })
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = {}\n')
}
/** Construct the node-half service and capture its plugin-bundle route. */
function constructWithRoute(
packageNames: string[],
options: {
contextBaseUrl?: string
entryBaseUrl?: string
internal?: NonNullable<Context['loader']['internal']>
} = {},
): { context: Context; service: ClientModuleRegistry; route: WebRoute } {
const ctx = new Context()
ctx.baseUrl = options.contextBaseUrl ?? pathToFileURL(root!).href + '/'
ctx.provide('loader', {
internal: options.internal,
*entries() {
for (const packageName of packageNames) {
yield {
options: { name: packageName },
fiber: {},
disabled: false,
parent: { tree: { ctx: { baseUrl: options.entryBaseUrl ?? ctx.baseUrl } } },
}
}
},
})
let route: WebRoute | undefined
const webServer: Pick<WebServer, 'port' | 'register' | 'tapIndex'> = {
port: 0,
register: (candidate) => {
if (candidate.path === '/plugins') route = candidate
return () => {}
},
tapIndex: () => () => {},
}
ctx.provide('webServer', webServer as WebServer)
const service = new ClientModuleRegistry(ctx)
if (route === undefined) throw new Error('client bundle route was not registered')
return { context: ctx, service, route }
}
/** Construct the node-half service over the enabled fixture entries. */
function construct(packageNames: string[]): ClientModuleRegistry {
return constructWithRoute(packageNames).service
}
/** Invoke the registered plugin route and capture status, headers, and bytes. */
async function routeRequest(route: WebRoute, url: string, method = 'GET'): Promise<{
status: number
headers: Record<string, string> | undefined
body: Buffer
}> {
let status = 0
let headers: Record<string, string> | undefined
let body = Buffer.alloc(0)
const response = {
writeHead(nextStatus: number, nextHeaders?: Record<string, string>) {
status = nextStatus
headers = nextHeaders
return response
},
end(chunk?: Uint8Array) {
body = chunk === undefined ? Buffer.alloc(0) : Buffer.from(chunk)
return response
},
} as unknown as ServerResponse
await route.handler({ method, url } as IncomingMessage, response)
return { status, headers, body }
}
/** Execute the exact first inline script emitted by the Host boot rows. */
function injectedFacade(graph: WebBootGraph): { html: string; target: ClientModuleLoaderTarget } {
const html = renderIndexInjections(
'<html><head></head><body><script type="module" src="/index.js"></script></body></html>',
bootInjections(graph),
)
const source = /<head><script>([\s\S]*?)<\/script>/.exec(html)?.[1]
if (source === undefined) throw new Error('missing injected ModuleLoader facade script')
const window: { __ModuleLoader__?: ClientModuleLoaderTarget } = {}
runInNewContext(source, { window })
if (window.__ModuleLoader__ === undefined) throw new Error('facade script did not install __ModuleLoader__')
return { html, target: window.__ModuleLoader__ }
}
const bootGraph = (): WebBootGraph => ({
rev: 'graph',
entries: [
{ id: MODULES_ID, url: comboUrl([MODULES_ID], 'm'), rev: 'm' },
{ id: UI_RENDERER_ID, url: comboUrl([UI_RENDERER_ID], 'r'), rev: 'r' },
],
batches: [
{
phase: 'bootstrap',
url: BOOTSTRAP_URL,
rev: 'boot',
entries: [MODULES_ID],
},
{
phase: 'application',
url: APPLICATION_URL,
rev: 'app',
entries: [UI_RENDERER_ID],
},
],
})
describe('HTML bootstrap facade', () => {
it('precedes blocking preloads and the boot graph, then becomes the live registration target', async () => {
const graph = bootGraph()
const { html, target } = injectedFacade(graph)
const facadeAt = html.indexOf('window.__ModuleLoader__=')
const applicationAt = html.indexOf(
`<link rel="preload" as="script" href="${APPLICATION_URL.replaceAll('&', '&amp;')}">`,
)
const bootstrapAt = html.indexOf(`<script src="${BOOTSTRAP_URL.replaceAll('&', '&amp;')}"></script>`)
const graphAt = html.indexOf('globalThis["__DSH_BOOT__"] = ')
const entryAt = html.indexOf('<script type="module" src="/index.js"></script>')
expect([facadeAt, applicationAt, bootstrapAt, graphAt, entryAt]).toEqual([...new Set([
facadeAt, applicationAt, bootstrapAt, graphAt, entryAt,
])].sort((a, b) => a - b))
target.load({ id: MODULES_ID, factory: () => modulesClient })
const system = target.create({
boot: graph,
staticModules: {},
loadBundle: async (url) => {
expect(url).toBe(APPLICATION_URL)
target.load({ id: UI_RENDERER_ID, factory: () => ({ marker: 'ui-renderer' }) })
},
})
expect(target.mode).toBe('live')
expect(target.pendingQueue).toEqual([])
expect(system.manifest.rev).toBe('graph')
expect(await system.import(MODULES_ID)).toBe(modulesClient)
expect(await system.import(`${UI_RENDERER_ID}/client`)).toEqual({ marker: 'ui-renderer' })
expect(() => target.create({ boot: graph, staticModules: {} }))
.toThrow('create called after module-system boot')
})
it('preloads every application combo', () => {
const graph = bootGraph()
const secondId = '@fixture/second-application-combo'
const secondUrl = comboUrl([secondId], 'app-2')
graph.entries.push({ id: secondId, url: comboUrl([secondId], 'row-2'), rev: 'row-2' })
graph.batches.push({ phase: 'application', url: secondUrl, rev: 'app-2', entries: [secondId] })
expect(bootInjections(graph).flatMap(row => row.kind === 'script-preload' ? [row.src] : []))
.toEqual([APPLICATION_URL, secondUrl])
})
it('rejects a page that did not preload the modules bundle', () => {
const graph = bootGraph()
const { target } = injectedFacade(graph)
expect(() => target.create({ boot: graph, staticModules: {} }))
.toThrow(`HTML did not preload ${MODULES_ID}/client.js`)
})
it('rejects a bootstrap bundle with a runtime external', () => {
const graph = bootGraph()
const { target } = injectedFacade(graph)
target.load({
id: MODULES_ID,
factory: (require) => {
require('react')
return modulesClient
},
})
expect(() => target.create({ boot: graph, staticModules: {} }))
.toThrow(`${MODULES_ID}/client.js requested external "react"`)
})
it.each([
null,
{ ...modulesClient, createClientModuleSystem: undefined },
{ ...modulesClient, apply: undefined },
])('rejects a bootstrap bundle without the complete module face', (exports) => {
const graph = bootGraph()
const { target } = injectedFacade(graph)
target.load({ id: MODULES_ID, factory: () => exports as unknown as Record<string, unknown> })
expect(() => target.create({ boot: graph, staticModules: {} }))
.toThrow(`${MODULES_ID}/client.js did not export the bootstrap module face`)
})
})
describe('client bundle activation', () => {
it.each(['v1', 'v2'] as const)(
'resolves %s package metadata from the owning entry tree',
(version) => {
const packageName = `@fixture/entry-base-${version}`
const clientPath = writePackage(packageName)
const hostPath = join(dirname(clientPath), 'index.js')
mkdirSync(dirname(hostPath), { recursive: true })
writeFileSync(hostPath, 'export default {}\n')
writeFileSync(clientPath, 'module.exports = {}\n')
const contextBaseUrl = pathToFileURL(join(root!, 'profile')).href + '/'
const entryBaseUrl = pathToFileURL(join(root!, 'overlay')).href + '/'
const calls: unknown[][] = []
const resolveSync = (...args: unknown[]) => {
calls.push(args)
return { format: 'module' as const, url: pathToFileURL(hostPath).href }
}
const internal = { version, resolveSync }
const { service } = constructWithRoute([packageName], {
contextBaseUrl,
entryBaseUrl,
internal: internal as NonNullable<Context['loader']['internal']>,
})
expect(calls).toEqual(version === 'v2'
? [[entryBaseUrl, { specifier: packageName, attributes: {} }]]
: [[packageName, entryBaseUrl, {}]])
expect(service.clientPath(packageName)).toBe(clientPath)
expect(service.graph().entries.map(entry => entry.id)).toEqual([packageName])
},
)
it('derives the browser module id from a file entry owning manifest', () => {
const packageName = '@fixture/file-entry'
const clientPath = writePackage(packageName)
const hostPath = join(dirname(clientPath), 'index.js')
mkdirSync(dirname(hostPath), { recursive: true })
writeFileSync(hostPath, 'export default {}\n')
writeFileSync(clientPath, 'module.exports = {}\n')
const service = construct([pathToFileURL(hostPath).href])
expect(service.clientPath(packageName)).toBe(clientPath)
expect(service.graph().entries.map(entry => entry.id)).toEqual([packageName])
})
it('rejects distinct active Loader sources for one browser package', () => {
const packageName = '@fixture/duplicate-source'
const clientPath = writePackage(packageName)
const hostPath = join(dirname(clientPath), 'index.js')
mkdirSync(dirname(hostPath), { recursive: true })
writeFileSync(hostPath, 'export default {}\n')
writeFileSync(clientPath, 'module.exports = {}\n')
const alias = './duplicate-source.js'
const internal = {
version: 'v2' as const,
resolveSync: () => ({ format: 'module' as const, url: pathToFileURL(hostPath).href }),
}
expect(() => constructWithRoute([packageName, alias], {
internal: internal as NonNullable<Context['loader']['internal']>,
})).toThrow(
`client-modules: package ${packageName} resolves from multiple active Loader sources:`,
)
})
it('promotes the remaining Loader source after the selected alias unloads', async () => {
const packageName = '@fixture/duplicate-source-recovery'
const clientPath = writePackage(packageName)
const hostPath = join(dirname(clientPath), 'index.js')
mkdirSync(dirname(hostPath), { recursive: true })
writeFileSync(hostPath, 'export default {}\n')
writeFileSync(clientPath, 'module.exports = {}\n')
const alias = './duplicate-source-recovery.js'
const entries = [packageName]
const internal = {
version: 'v2' as const,
resolveSync: () => ({ format: 'module' as const, url: pathToFileURL(hostPath).href }),
}
const { context, service } = constructWithRoute(entries, {
internal: internal as NonNullable<Context['loader']['internal']>,
})
const firstRevision = service.graph().entries[0]!.rev
const warning = vi.spyOn(context.logger, 'warn').mockImplementation(() => undefined)
entries.push(alias)
emitLoaderEntryChange(context, alias)
await Promise.resolve()
expect(warning).toHaveBeenCalledWith(expect.objectContaining({
message: expect.stringContaining(`package ${packageName} resolves from multiple active Loader sources`) as string,
}))
expect(service.graph().entries[0]!.rev).toBe(firstRevision)
entries.splice(entries.indexOf(packageName), 1)
emitLoaderEntryChange(context, packageName)
await Promise.resolve()
expect(service.graph().entries.map(entry => entry.id)).toEqual([packageName])
expect(service.graph().entries[0]!.rev).not.toBe(firstRevision)
expect(service.clientPath(packageName)).toBe(clientPath)
})
it('uses owning-tree package resolution for an import-only Worker module loader', () => {
const packageName = '@fixture/worker-loader'
writeBuiltPackage(packageName, {})
const internal = {
version: 'worker',
import: async () => ({}),
} as unknown as NonNullable<Context['loader']['internal']>
const { service } = constructWithRoute([packageName], { internal })
expect(service.graph().entries.map(entry => entry.id)).toEqual([packageName])
})
it('allows sibling dsh roles', () => {
const currentName = '@fixture/current-client-field'
const clientPath = writePackage(currentName, {
dsh: {
bundle: { patch: './cordis.patch.yml' },
client: { platform: 'web' },
profile: { bundles: [] },
},
})
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = {}\n')
expect(construct([currentName]).graph().entries.map(entry => entry.id)).toEqual([currentName])
})
it('groups missing bundles under one source-build instruction with a package/path list', () => {
const firstName = '@fixture/missing-first'
const secondName = '@fixture/missing-second'
const firstPath = writePackage(firstName)
const secondPath = writePackage(secondName)
expect(() => construct([firstName, secondName])).toThrow([
'client-modules: 2 client packages failed to compose:',
' client bundles not found; run `pnpm run build` before launch:',
` - package: ${firstName}`,
` path: ${firstPath}`,
` - package: ${secondName}`,
` path: ${secondPath}`,
].join('\n'))
})
it('does not report other bundle read failures as missing builds', () => {
const packageName = '@fixture/unreadable-client'
const clientPath = writePackage(packageName)
mkdirSync(clientPath, { recursive: true })
let thrown: unknown
try {
construct([packageName])
} catch (error) {
thrown = error
}
expect(String(thrown)).toContain('client-modules: 1 client package failed to compose:')
expect(String(thrown)).toContain(' other failures:')
expect(String(thrown)).toContain('EISDIR')
expect(String(thrown)).not.toContain('pnpm run build')
})
it('falls back to a generated-file map when an authored map is malformed', async () => {
const packageName = '@fixture/malformed-source-map'
const clientPath = writePackage(packageName)
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = {}\n')
writeFileSync(`${clientPath}.map`, '{')
const torn = constructWithRoute([packageName])
const tornRow = torn.service.graph().entries[0]!
expect((await routeRequest(torn.route, tornRow.url)).body.toString('utf8'))
.toContain(`sourceMappingURL=${mapUrl(tornRow.url)}`)
const fallback = await routeRequest(torn.route, mapUrl(torn.service.graph().batches[0]!.url))
expect(JSON.parse(fallback.body.toString('utf8'))).toMatchObject({
sections: [{ map: { sources: [`/plugins/${packageName}/client.js`] } }],
})
writeFileSync(`${clientPath}.map`, '{"version":3,"sources":[null]}\n')
expect(() => construct([packageName])).not.toThrow()
})
it('maps packed combo sections back to each generated client bundle', async () => {
const names = ['@fixture/generated-first', '@fixture/generated-second']
for (const [index, packageName] of names.entries()) {
const clientPath = writePackage(packageName)
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(
clientPath,
`window.generation = ${String(index)}\n//# sourceURL=packages/client/generated-${String(index)}/lib/client.js`,
)
}
const { service, route } = constructWithRoute(names)
const batch = service.graph().batches[0]!
const script = (await routeRequest(route, batch.url)).body.toString('utf8')
expect(script).not.toContain('//# sourceURL=')
expect(script).toContain(`//# sourceMappingURL=${mapUrl(batch.url)}`)
const payload = JSON.parse((await routeRequest(route, mapUrl(batch.url))).body.toString('utf8')) as {
sections: { map: { mappings: string; sources: string[]; sourcesContent: string[] } }[]
}
expect(payload.sections.map(section => section.map)).toEqual([
{
version: 3,
names: [],
mappings: 'AAAA',
sources: ['/packages/client/generated-0/lib/client.js'],
sourcesContent: ['window.generation = 0\n'],
},
{
version: 3,
names: [],
mappings: 'AAAA',
sources: ['/packages/client/generated-1/lib/client.js'],
sourcesContent: ['window.generation = 1\n'],
},
])
const consumer = new SourceMap(payload as unknown as ConstructorParameters<typeof SourceMap>[0])
expect(consumer.findEntry(0, 0)).toMatchObject({
originalSource: '/packages/client/generated-0/lib/client.js',
})
expect(consumer.findEntry(2, 0)).toMatchObject({
originalSource: '/packages/client/generated-1/lib/client.js',
})
})
it('retains one prior immutable batch generation across rebuild recomposition', async () => {
const packageName = '@fixture/batch-rebuild-race'
const clientPath = writePackage(packageName)
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = { generation: 1 }\n')
const { service, route } = constructWithRoute([packageName])
const first = service.graph().batches[0]!.url
const firstSize = service.artifactBaseline(packageName)!.size
writeFileSync(clientPath, 'module.exports = { generation: 200 }\n')
service.rebuilt(packageName)
const second = service.graph().batches[0]!.url
expect(second).not.toBe(first)
expect(service.artifactBaseline(packageName)!.size).toBeGreaterThan(firstSize)
expect((await routeRequest(route, first)).status).toBe(200)
expect((await routeRequest(route, second)).status).toBe(200)
writeFileSync(clientPath, 'module.exports = { generation: 3 }\n')
service.rebuilt(packageName)
const third = service.graph().batches[0]!.url
expect((await routeRequest(route, first)).status).toBe(404)
expect((await routeRequest(route, second)).status).toBe(200)
expect((await routeRequest(route, third)).status).toBe(200)
})
it('assigns opaque startup revisions instead of deriving them from artifact content', () => {
const firstName = '@fixture/startup-revision-first'
const secondName = '@fixture/startup-revision-second'
writeBuiltPackage(firstName, {})
writeBuiltPackage(secondName, {})
const service = construct([firstName, secondName])
const [first, second] = service.graph().entries
const firstMatch = /^(?<nonce>[a-f\d]{16})-(?<sequence>\d+)$/.exec(first!.rev)
const secondMatch = /^(?<nonce>[a-f\d]{16})-(?<sequence>\d+)$/.exec(second!.rev)
expect(firstMatch?.groups).toMatchObject({ sequence: '0' })
expect(secondMatch?.groups).toMatchObject({ nonce: firstMatch?.groups?.nonce, sequence: '1' })
const firstPath = service.clientPath(firstName)!
const firstStat = statSync(firstPath)
expect(service.artifactBaseline(firstName)).toEqual({
path: firstPath,
mtimeMs: firstStat.mtimeMs,
size: firstStat.size,
})
expect(service.artifactBaseline('@fixture/unknown')).toBeUndefined()
})
it('splits startup combos before the map-form URL exceeds 3 KiB', async () => {
const packageNames = Array.from({ length: 48 }, (_, index) => (
`@fixture/combo-url-${String(index).padStart(3, '0')}-${'x'.repeat(40)}`
))
const sourceMap = JSON.stringify({
version: 3,
names: [],
mappings: 'AAAA',
sources: ['src/index.ts'],
})
for (const packageName of packageNames) {
const clientPath = writePackage(packageName)
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = {}\n')
writeFileSync(`${clientPath}.map`, sourceMap)
}
const { service, route } = constructWithRoute(packageNames)
const batches = service.graph().batches.filter(batch => batch.phase === 'application')
expect(batches.length).toBeGreaterThan(1)
expect(batches.flatMap(batch => batch.entries)).toEqual(packageNames)
for (const batch of batches) {
expect(Buffer.byteLength(batch.url)).toBeLessThanOrEqual(3 * 1024)
expect(Buffer.byteLength(mapUrl(batch.url))).toBeLessThanOrEqual(3 * 1024)
expect((await routeRequest(route, batch.url)).status).toBe(200)
expect((await routeRequest(route, mapUrl(batch.url))).status).toBe(200)
}
for (let index = 0; index < batches.length - 1; index += 1) {
const entries = [...batches[index]!.entries, batches[index + 1]!.entries[0]!]
expect(Buffer.byteLength(mapUrl(comboUrl(entries, '0'.repeat(12))))).toBeGreaterThan(3 * 1024)
}
})
it('serves the source map beside a registered client bundle', async () => {
const packageName = '@fixture/source-map'
const clientPath = writePackage(packageName)
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = {}\n//# sourceMappingURL=client.js.map')
const map = '{"version":3,"names":[],"mappings":"AAAA","sources":["../../../packages/client/demo/src/index.tsx","https://cdn.example.test/library.js"]}\n'
writeFileSync(`${clientPath}.map`, map)
const { service, route } = constructWithRoute([packageName])
const row = service.graph().entries[0]!
const singleScript = await routeRequest(route, row.url)
expect(singleScript.body.toString('utf8')).toContain(`sourceMappingURL=${mapUrl(row.url)}`)
const singleMap = await routeRequest(route, mapUrl(row.url))
expect(singleMap.status).toBe(200)
expect(singleMap.headers).toEqual({
'content-type': 'application/json; charset=utf-8',
'cache-control': 'public, max-age=31536000, immutable',
})
expect(JSON.parse(singleMap.body.toString('utf8'))).toMatchObject({
version: 3,
file: 'client.js',
sections: [{
offset: { line: 0, column: 0 },
map: {
...(JSON.parse(map) as Record<string, unknown>),
sources: ['/packages/client/demo/src/index.tsx', 'https://cdn.example.test/library.js'],
},
}],
})
const batch = service.graph().batches[0]!
expect(batch).toMatchObject({ phase: 'application', entries: [packageName] })
const batchScript = await routeRequest(route, batch.url)
expect(batchScript.status).toBe(200)
expect(batchScript.headers?.['cache-control']).toBe('public, max-age=31536000, immutable')
expect(batchScript.body.toString('utf8')).toContain(`//# sourceMappingURL=${mapUrl(batch.url)}`)
expect((await routeRequest(route, batch.url, 'HEAD')).body).toHaveLength(0)
expect((await routeRequest(route, batch.url, 'POST')).status).toBe(405)
const batchMap = await routeRequest(route, mapUrl(batch.url))
const parsedBatchMap = JSON.parse(batchMap.body.toString('utf8')) as unknown
const parsedPluginMap = JSON.parse(map) as Record<string, unknown>
expect(parsedBatchMap).toMatchObject({
version: 3,
file: 'client.js',
sections: [{
offset: { line: 0, column: 0 },
map: {
...parsedPluginMap,
sources: ['/packages/client/demo/src/index.tsx', 'https://cdn.example.test/library.js'],
},
}],
})
expect((await routeRequest(route, `${row.url}&stale=1`.replace(`rev=${row.rev}`, 'rev=stale'))).status).toBe(404)
writeFileSync(`${clientPath}.map`, '{"version":3,"names":[],"mappings":"AAAA","sources":["src/changed.tsx"]}\n')
const nextRev = service.rebuilt(packageName)
expect(nextRev).not.toBe(row.rev)
const nextRow = service.graph().entries[0]!
expect(nextRow.rev).toBe(nextRev)
const nextMap = await routeRequest(route, mapUrl(nextRow.url))
expect(JSON.parse(nextMap.body.toString('utf8'))).toMatchObject({
sections: [{ map: { sources: ['/plugins/@fixture/source-map/src/changed.tsx'] } }],
})
})
it('applies sourceRoot before relocating absolute-looking section sources', async () => {
const packageName = '@fixture/source-root'
const clientPath = writePackage(packageName)
mkdirSync(dirname(clientPath), { recursive: true })
writeFileSync(clientPath, 'module.exports = {}\n')
writeFileSync(`${clientPath}.map`, JSON.stringify({
version: 3,
names: [],
mappings: 'AAAA',
sourceRoot: '../root',
sources: ['/absolute.ts'],
}))
const { service, route } = constructWithRoute([packageName])
const response = await routeRequest(route, mapUrl(service.graph().batches[0]!.url))
const map = JSON.parse(response.body.toString('utf8')) as {
sections: { map: { sourceRoot?: string; sources: string[] } }[]
}
expect(map.sections[0]?.map).toMatchObject({
sources: ['/plugins/@fixture/root/absolute.ts'],
})
expect(map.sections[0]?.map).not.toHaveProperty('sourceRoot')
})
it('maps a non-zero second batch section through a standard source-map consumer', async () => {
const firstName = '@fixture/offset-first'
const secondName = '@fixture/offset-second'
const firstPath = writePackage(firstName)
const secondPath = writePackage(secondName)
for (const [path, source] of [
[firstPath, '../../../packages/demo/first.ts'],
[secondPath, '../../../packages/demo/second.ts'],
] as const) {
mkdirSync(dirname(path), { recursive: true })
writeFileSync(path, 'window.first = true\nwindow.second = true\n')
writeFileSync(`${path}.map`, JSON.stringify({
version: 3,
names: [],
mappings: 'AAAA',
sources: [source],
sourcesContent: ['export {}\n'],
}))
}
const { service, route } = constructWithRoute([firstName, secondName])
const response = await routeRequest(route, mapUrl(service.graph().batches[0]!.url))
const payload = JSON.parse(response.body.toString('utf8')) as ConstructorParameters<typeof SourceMap>[0]
const sections = (payload as unknown as {
sections: { offset: { line: number; column: number } }[]
}).sections
expect(sections.map(section => section.offset)).toEqual([
{ line: 0, column: 0 },
{ line: 3, column: 0 },
])
const consumer = new SourceMap(payload)
expect(consumer.findEntry(0, 0)).toMatchObject({ originalSource: '/packages/demo/first.ts' })
expect(consumer.findEntry(3, 0)).toMatchObject({ originalSource: '/packages/demo/second.ts' })
})
it('combines a generated-file fallback with a later authored map', async () => {
const unmappedName = '@fixture/unmapped-first'
const mappedName = '@fixture/mapped-second'
const unmappedPath = writePackage(unmappedName)
const mappedPath = writePackage(mappedName)
mkdirSync(dirname(unmappedPath), { recursive: true })
mkdirSync(dirname(mappedPath), { recursive: true })
writeFileSync(unmappedPath, 'window.unmapped = true\n')
writeFileSync(mappedPath, 'window.mapped = true\n')
writeFileSync(`${mappedPath}.map`, JSON.stringify({
version: 3,
names: [],
mappings: 'AAAA',
sources: ['../../../packages/demo/mapped.ts'],
sourcesContent: ['export {}\n'],
}))
const { service, route } = constructWithRoute([unmappedName, mappedName])
const response = await routeRequest(route, mapUrl(service.graph().batches[0]!.url))
const payload = JSON.parse(response.body.toString('utf8')) as ConstructorParameters<typeof SourceMap>[0]
const consumer = new SourceMap(payload)
expect(consumer.findEntry(0, 0)).toMatchObject({
originalSource: `/plugins/${unmappedName}/client.js`,
})
expect(consumer.findEntry(2, 0)).toMatchObject({ originalSource: '/packages/demo/mapped.ts' })
})
})
function emitLoaderEntryChange(context: Context, name: string): void {
context.emit('internal/plugin', {
entry: { options: { name } },
} as unknown as Fiber)
}
describe('shared module declarations', () => {
it('accepts external requests and carries them onto the graph row', () => {
const packageName = '@fixture/shared-declared'
writeBuiltPackage(packageName, { external: ['react'] })
expect(construct([packageName]).graph().entries).toEqual([{
id: packageName,
url: expect.stringContaining(`/plugins/??${packageName}/client.js&rev=`) as unknown as string,
rev: expect.any(String) as unknown as string,
external: ['react'],
}])
})
it('omits external when the package declares no requests', () => {
const packageName = '@fixture/shared-absent'
writeBuiltPackage(packageName, {})
const [row] = construct([packageName]).graph().entries
expect(row).not.toHaveProperty('external')
})
it('rejects a non-array external', () => {
const packageName = '@fixture/external-not-array'
writeBuiltPackage(packageName, { external: 'react' })
expect(() => construct([packageName]))
.toThrow(`client-modules: ${packageName} dsh.client.external must be a string array`)
})
})
describe('module graph order', () => {
const entry = (id: string, fields: Partial<WebBootEntry> = {}): WebBootEntry =>
({ id, url: comboUrl([id], '0'), rev: '0', ...fields })
const ids = (entries: readonly WebBootEntry[]): string[] => entries.map(row => row.id)
it('places every requested package row before its consumers along a chain', () => {
expect(ids(orderByModuleGraph([
entry('ui', { external: ['slots'] }),
entry('slots', { external: ['render'] }),
entry('render'),
]))).toEqual(['render', 'slots', 'ui'])
})
it('places a shared package row before both arms of a diamond', () => {
expect(ids(orderByModuleGraph([
entry('app', { external: ['left', 'right'] }),
entry('left', { external: ['vendor'] }),
entry('right', { external: ['vendor'] }),
entry('vendor'),
]))).toEqual(['vendor', 'left', 'right', 'app'])
})
it('resolves a /client request onto the requested package row', () => {
expect(ids(orderByModuleGraph([
entry('ui', { external: ['runtime/client'] }),
entry('runtime'),
]))).toEqual(['runtime', 'ui'])
})
it('leaves a request no row answers to the static assembly channel', () => {
expect(ids(orderByModuleGraph([
entry('consumer', { external: ['@deepseek-ai/cordis'] }),
entry('other'),
]))).toEqual(['consumer', 'other'])
})
it('rejects a cycle and names the packages on it', () => {
expect(() => orderByModuleGraph([
entry('a', { external: ['b'] }),
entry('b', { external: ['a'] }),
])).toThrow('client-modules: module graph cycle a -> b -> a')
})
it('rejects a row requesting its own package name', () => {
expect(() => orderByModuleGraph([entry('solo', { external: ['solo'] })]))
.toThrow('client-modules: "solo" requests module "solo" that it answers itself')
})
it('composes the served graph in module-graph order', () => {
const consumerName = '@fixture/order-consumer'
const dependencyName = '@fixture/order-dependency'
writeBuiltPackage(consumerName, { external: [dependencyName] })
writeBuiltPackage(dependencyName, {})
expect(ids(construct([consumerName, dependencyName]).graph().entries))
.toEqual([dependencyName, consumerName])
})
it('fails activation loud when scanned packages form a module cycle', () => {
writeBuiltPackage('@fixture/cycle-a', { external: ['@fixture/cycle-b'] })
writeBuiltPackage('@fixture/cycle-b', { external: ['@fixture/cycle-a'] })
expect(() => construct(['@fixture/cycle-a', '@fixture/cycle-b']))
.toThrow('module graph cycle @fixture/cycle-a -> @fixture/cycle-b -> @fixture/cycle-a')
})
})