File size: 8,129 Bytes
b91e262
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
import { nextTestSetup } from 'e2e-utils'
import { retry } from 'next-test-utils'

describe('server-components-hmr-cache', () => {
  const { next } = nextTestSetup({ files: __dirname, patchFileDelay: 1000 })
  const loggedAfterValueRegexp = /After: (\d\.\d+)/
  let cliOutputLength: number

  const getLoggedAfterValue = () => {
    const match = next.cliOutput
      .slice(cliOutputLength)
      .match(loggedAfterValueRegexp)

    if (!match) {
      throw new Error('No logs from after() found')
    }
    return match[1]
  }

  describe.each(['edge', 'node'])('%s runtime', (runtime) => {
    it('should use cached fetch calls for fast refresh requests', async () => {
      const browser = await next.browser(`/${runtime}`)
      const valueBeforePatch = await browser.elementById('value').text()

      await next.patchFile(
        'components/shared-page.tsx',
        (content) => content.replace('foo', 'bar'),
        async () => {
          await retry(async () => {
            const updatedContent = await browser.elementById('content').text()
            expect(updatedContent).toBe('bar')
            // TODO: remove custom duration in case we increase the default.
          }, 5000)

          const valueAfterPatch = await browser.elementById('value').text()
          expect(valueBeforePatch).toEqual(valueAfterPatch)
        }
      )
    })

    it('should not use cached fetch calls for intentional refresh requests', async () => {
      const browser = await next.browser(`/${runtime}`)
      const valueBeforeRefresh = await browser.elementById('value').text()
      await browser.elementByCss(`button`).click().waitForIdleNetwork()

      await retry(async () => {
        const valueAfterRefresh = await browser.elementById('value').text()
        expect(valueBeforeRefresh).not.toEqual(valueAfterRefresh)
        // TODO: remove custom duration in case we increase the default.
      }, 5000)
    })

    describe('in after()', () => {
      beforeEach(() => {
        cliOutputLength = next.cliOutput.length
      })

      it('should use cached fetch calls for fast refresh requests', async () => {
        const browser = await next.browser(`/${runtime}`)
        const valueBeforePatch = await retry(() => getLoggedAfterValue())
        cliOutputLength = next.cliOutput.length

        await next.patchFile(
          'components/shared-page.tsx',
          (content) => content.replace('foo', 'bar'),
          async () => {
            await retry(async () => {
              const updatedContent = await browser.elementById('content').text()
              expect(updatedContent).toBe('bar')
              // TODO: remove custom duration in case we increase the default.
            }, 5000)

            const valueAfterPatch = await retry(() => getLoggedAfterValue())
            expect(valueBeforePatch).toEqual(valueAfterPatch)
          }
        )
      })

      it('should not use cached fetch calls for intentional refresh requests', async () => {
        const browser = await next.browser(`/${runtime}`)
        const valueBeforeRefresh = await retry(() => getLoggedAfterValue())
        cliOutputLength = next.cliOutput.length

        await browser.elementByCss(`button`).click().waitForIdleNetwork()

        await retry(async () => {
          const valueAfterRefresh = getLoggedAfterValue()
          expect(valueBeforeRefresh).not.toEqual(valueAfterRefresh)
          // TODO: remove custom duration in case we increase the default.
        }, 5000)
      })
    })

    describe('with cacheMaxMemorySize set to 0', () => {
      beforeAll(async () => {
        await next.patchFile('next.config.js', (content) =>
          content.replace('// cacheMaxMemorySize: 0,', 'cacheMaxMemorySize: 0,')
        )
      })

      afterAll(async () => {
        await next.patchFile('next.config.js', (content) =>
          content.replace('cacheMaxMemorySize: 0,', '// cacheMaxMemorySize: 0,')
        )
      })

      it('should not warn about "Single item size exceeds maxSize"', async () => {
        const initialOutputLength = next.cliOutput.length
        const browser = await next.browser(`/${runtime}`)
        await browser.elementById('value').text()

        await next.patchFile(
          'components/shared-page.tsx',
          (content) => content.replace('foo', 'bar'),
          async () => {
            await retry(async () => {
              const updatedContent = await browser.elementById('content').text()
              expect(updatedContent).toBe('bar')
            }, 5000)

            // Verify the warning does not appear
            const newOutput = next.cliOutput.slice(initialOutputLength)
            expect(newOutput).not.toContain('Single item size exceeds maxSize')
          }
        )
      })

      it('should still use cached fetch calls for fast refresh requests', async () => {
        const browser = await next.browser(`/${runtime}`)
        const valueBeforePatch = await browser.elementById('value').text()

        await next.patchFile(
          'components/shared-page.tsx',
          (content) => content.replace('foo', 'bar'),
          async () => {
            await retry(async () => {
              const updatedContent = await browser.elementById('content').text()
              expect(updatedContent).toBe('bar')
            }, 5000)

            // HMR cache should still work even with cacheMaxMemorySize: 0
            const valueAfterPatch = await browser.elementById('value').text()
            expect(valueBeforePatch).toEqual(valueAfterPatch)
          }
        )
      })
    })

    describe('with experimental.serverComponentsHmrCache disabled', () => {
      beforeAll(async () => {
        // Wait for server to be ready
        await next.fetch('/404')
        await next.patchFile('next.config.js', (content) =>
          content.replace(
            '// serverComponentsHmrCache: false,',
            'serverComponentsHmrCache: false,'
          )
        )
      })

      afterAll(async () => {
        await next.patchFile('next.config.js', (content) =>
          content.replace(
            'serverComponentsHmrCache: false,',
            '// serverComponentsHmrCache: false,'
          )
        )
      })

      it('should not use cached fetch calls for fast refresh requests', async () => {
        const browser = await next.browser(`/${runtime}`)
        const valueBeforePatch = await browser.elementById('value').text()

        await next.patchFile(
          'components/shared-page.tsx',
          (content) => content.replace('foo', 'bar'),
          async () => {
            await retry(async () => {
              const updatedContent = await browser.elementById('content').text()
              expect(updatedContent).toBe('bar')
              // TODO: remove custom duration in case we increase the default.
            }, 5000)

            const valueAfterPatch = await browser.elementById('value').text()
            expect(valueBeforePatch).not.toEqual(valueAfterPatch)
          }
        )
      })

      describe('in after()', () => {
        beforeEach(() => {
          cliOutputLength = next.cliOutput.length
        })

        it('should not use cached fetch calls for fast refresh requests', async () => {
          const browser = await next.browser(`/${runtime}`)
          const valueBeforePatch = await retry(() => getLoggedAfterValue())
          cliOutputLength = next.cliOutput.length

          await next.patchFile(
            'components/shared-page.tsx',
            (content) => content.replace('foo', 'bar'),
            async () => {
              await retry(async () => {
                const updatedContent = await browser
                  .elementById('content')
                  .text()
                expect(updatedContent).toBe('bar')
                // TODO: remove custom duration in case we increase the default.
              }, 5000)

              const valueAfterPatch = await retry(() => getLoggedAfterValue())
              expect(valueBeforePatch).not.toEqual(valueAfterPatch)
            }
          )
        })
      })
    })
  })
})