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import { createPrerenderResumeDataCache } from '../resume-data-cache/resume-data-cache'
import {
streamFromString,
streamToString,
} from '../stream-utils/node-web-streams-helper'
import {
DynamicState,
getDynamicDataPostponedState,
getDynamicHTMLPostponedState,
parsePostponedState,
} from './postponed-state'
describe('getDynamicHTMLPostponedState', () => {
it('serializes a HTML postponed state with fallback params', async () => {
const key = '%%drp:slug:e9615126684e5%%'
const fallbackRouteParams = new Map([['slug', key]])
const prerenderResumeDataCache = createPrerenderResumeDataCache()
prerenderResumeDataCache.cache.set(
'1',
Promise.resolve({
value: streamFromString('hello'),
tags: [],
stale: 0,
timestamp: 0,
expire: 0,
revalidate: 0,
})
)
const state = await getDynamicHTMLPostponedState(
{ [key]: key, nested: { [key]: key } },
fallbackRouteParams,
prerenderResumeDataCache
)
const parsed = parsePostponedState(state, { slug: '123' })
expect(parsed).toMatchInlineSnapshot(`
{
"data": {
"123": "123",
"nested": {
"123": "123",
},
},
"renderResumeDataCache": {
"cache": Map {
"1" => Promise {},
},
"decryptedBoundArgs": Map {},
"encryptedBoundArgs": Map {},
"fetch": Map {},
},
"type": 2,
}
`)
const value = await parsed.renderResumeDataCache.cache.get('1')
expect(value).toBeDefined()
await expect(streamToString(value!.value)).resolves.toEqual('hello')
})
it('serializes a HTML postponed state without fallback params', async () => {
const state = await getDynamicHTMLPostponedState(
{ key: 'value' },
null,
createPrerenderResumeDataCache()
)
expect(state).toMatchInlineSnapshot(`"15:{"key":"value"}null"`)
})
it('can serialize and deserialize a HTML postponed state with fallback params', async () => {
const key = '%%drp:slug:e9615126684e5%%'
const fallbackRouteParams = new Map([['slug', key]])
const state = await getDynamicHTMLPostponedState(
{ [key]: key },
fallbackRouteParams,
createPrerenderResumeDataCache()
)
const value = 'hello'
const params = { slug: value }
const parsed = parsePostponedState(state, params)
expect(parsed).toEqual({
type: DynamicState.HTML,
data: { [value]: value },
renderResumeDataCache: createPrerenderResumeDataCache(),
})
// The replacements have been replaced.
expect(JSON.stringify(parsed)).not.toMatch(key)
})
})
describe('getDynamicDataPostponedState', () => {
it('serializes a data postponed state with fallback params', async () => {
const state = await getDynamicDataPostponedState(
createPrerenderResumeDataCache()
)
expect(state).toMatchInlineSnapshot(`"4:nullnull"`)
})
})
describe('parsePostponedState', () => {
it('parses a HTML postponed state with fallback params', () => {
const state = `2589:39[["slug","%%drp:slug:e9615126684e5%%"]]{"t":2,"d":{"nextSegmentId":2,"rootFormatContext":{"insertionMode":0,"selectedValue":null,"tagScope":0},"progressiveChunkSize":12800,"resumableState":{"idPrefix":"","nextFormID":0,"streamingFormat":0,"instructions":0,"hasBody":true,"hasHtml":true,"unknownResources":{},"dnsResources":{},"connectResources":{"default":{},"anonymous":{},"credentials":{}},"imageResources":{},"styleResources":{},"scriptResources":{"/_next/static/chunks/webpack-6b2534a6458c6fe5.js":null,"/_next/static/chunks/f5e865f6-5e04edf75402c5e9.js":null,"/_next/static/chunks/9440-26a4cfbb73347735.js":null,"/_next/static/chunks/main-app-315ef55d588dbeeb.js":null,"/_next/static/chunks/8630-8e01a4bea783c651.js":null,"/_next/static/chunks/app/layout-1b900e1a3caf3737.js":null},"moduleUnknownResources":{},"moduleScriptResources":{"/_next/static/chunks/webpack-6b2534a6458c6fe5.js":null}},"replayNodes":[["oR",0,[["Context.Provider",0,[["ServerInsertedHTMLProvider",0,[["Context.Provider",0,[["n7",0,[["nU",0,[["nF",0,[["n9",0,[["Fragment",0,[["Context.Provider",2,[["Context.Provider",0,[["Context.Provider",0,[["Context.Provider",0,[["Context.Provider",0,[["Context.Provider",0,[["nY",0,[["nX",0,[["Fragment","c",[["Fragment",0,[["html",1,[["body",0,[["main",3,[["j",0,[["Fragment",0,[["Context.Provider","validation",[["i",2,[["Fragment",0,[["E",0,[["R",0,[["h",0,[["Fragment",0,[["O",0,[["Fragment",0,[["s",0,[["c",0,[["s",0,[["c",0,[["v",0,[["Context.Provider",0,[["Fragment","c",[["j",1,[["Fragment",0,[["Context.Provider","slug|%%drp:slug:e9615126684e5%%|d",[["i",2,[["Fragment",0,[["E",0,[["R",0,[["h",0,[["Fragment",0,[["O",0,[["Fragment",0,[["s",0,[["Fragment",0,[["s",0,[["c",0,[["v",0,[["Context.Provider",0,[["Fragment","c",[["j",1,[["Fragment",0,[["Context.Provider","__PAGE__",[["i",2,[["Fragment",0,[["E",0,[["R",0,[["h",0,[["Fragment",0,[["O",0,[["Suspense",0,[["s",0,[["Fragment",0,[["s",0,[["c",0,[["v",0,[["Context.Provider",0,[["Fragment","c",[["Fragment",0,[],{"1":1}]],null]],null]],null]],null]],null]],null]],null]],null,["Suspense Fallback",0,[],null],0]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],null]],"replaySlots":null}}null`
const params = {
slug: Math.random().toString(16).slice(3),
}
const parsed = parsePostponedState(state, params)
// Ensure that it parsed it correctly.
expect(parsed).toEqual({
type: DynamicState.HTML,
data: expect.any(Object),
renderResumeDataCache: createPrerenderResumeDataCache(),
})
// Ensure that the replacement worked and removed all the placeholders.
expect(JSON.stringify(parsed)).not.toMatch(/%%drp:slug:e9615126684e5%%/)
})
it('parses a HTML postponed state without fallback params', () => {
const state = `2:{}null`
const params = {}
const parsed = parsePostponedState(state, params)
// Ensure that it parsed it correctly.
expect(parsed).toEqual({
type: DynamicState.HTML,
data: expect.any(Object),
renderResumeDataCache: createPrerenderResumeDataCache(),
})
})
it('parses a data postponed state', () => {
const state = '4:nullnull'
const parsed = parsePostponedState(state, undefined)
// Ensure that it parsed it correctly.
expect(parsed).toEqual({
type: DynamicState.DATA,
renderResumeDataCache: createPrerenderResumeDataCache(),
})
})
})
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