File size: 6,904 Bytes
1e92f2d
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
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(),
    })
  })
})