/
index.test.js
544 lines (441 loc) · 15.4 KB
/
index.test.js
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
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
/* eslint-env jest */
import cheerio from 'cheerio'
import { readdir, readFile, remove } from 'fs-extra'
import {
File,
findPort,
killApp,
launchApp,
nextBuild,
nextStart,
renderViaHTTP,
waitFor,
} from 'next-test-utils'
import webdriver from 'next-webdriver'
import { join } from 'path'
const fixturesDir = join(__dirname, '../../scss-fixtures')
describe('Basic SCSS Module Support', () => {
const appDir = join(fixturesDir, 'basic-module')
let appPort
let app
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".index_redText__WduQk{color:red}"`
)
})
it(`should've injected the CSS on server render`, async () => {
const content = await renderViaHTTP(appPort, '/')
const $ = cheerio.load(content)
const cssPreload = $('link[rel="preload"][as="style"]')
expect(cssPreload.length).toBe(1)
expect(cssPreload.attr('href')).toMatch(/^\/_next\/static\/css\/.*\.css$/)
const cssSheet = $('link[rel="stylesheet"]')
expect(cssSheet.length).toBe(1)
expect(cssSheet.attr('href')).toMatch(/^\/_next\/static\/css\/.*\.css$/)
expect($('#verify-red').attr('class')).toMatchInlineSnapshot(
`"index_redText__WduQk"`
)
})
})
describe('3rd Party CSS Module Support', () => {
const appDir = join(fixturesDir, '3rd-party-module')
let appPort
let app
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".index_foo__gL0ty{position:relative}.index_foo__gL0ty .bar,.index_foo__gL0ty .baz{height:100%;overflow:hidden}.index_foo__gL0ty .lol,.index_foo__gL0ty>.lel{width:80%}"`
)
})
it(`should've injected the CSS on server render`, async () => {
const content = await renderViaHTTP(appPort, '/')
const $ = cheerio.load(content)
const cssPreload = $('link[rel="preload"][as="style"]')
expect(cssPreload.length).toBe(1)
expect(cssPreload.attr('href')).toMatch(/^\/_next\/static\/css\/.*\.css$/)
const cssSheet = $('link[rel="stylesheet"]')
expect(cssSheet.length).toBe(1)
expect(cssSheet.attr('href')).toMatch(/^\/_next\/static\/css\/.*\.css$/)
expect($('#verify-div').attr('class')).toMatchInlineSnapshot(
`"index_foo__gL0ty"`
)
})
})
describe('Has CSS Module in computed styles in Development', () => {
const appDir = join(fixturesDir, 'dev-module')
let appPort
let app
beforeAll(async () => {
await remove(join(appDir, '.next'))
appPort = await findPort()
app = await launchApp(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should have CSS for page', async () => {
const browser = await webdriver(appPort, '/')
const currentColor = await browser.eval(
`window.getComputedStyle(document.querySelector('#verify-red')).color`
)
expect(currentColor).toMatchInlineSnapshot(`"rgb(255, 0, 0)"`)
})
})
describe('Has CSS Module in computed styles in Production', () => {
const appDir = join(fixturesDir, 'prod-module')
let appPort
let app
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it('should have CSS for page', async () => {
const browser = await webdriver(appPort, '/')
const currentColor = await browser.eval(
`window.getComputedStyle(document.querySelector('#verify-red')).color`
)
expect(currentColor).toMatchInlineSnapshot(`"rgb(255, 0, 0)"`)
})
})
describe('Can hot reload CSS Module without losing state', () => {
const appDir = join(fixturesDir, 'hmr-module')
let appPort
let app
beforeAll(async () => {
await remove(join(appDir, '.next'))
appPort = await findPort()
app = await launchApp(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should update CSS color without remounting <input>', async () => {
const browser = await webdriver(appPort, '/')
const desiredText = 'hello world'
await browser.elementById('text-input').type(desiredText)
expect(await browser.elementById('text-input').getValue()).toBe(desiredText)
const currentColor = await browser.eval(
`window.getComputedStyle(document.querySelector('#verify-red')).color`
)
expect(currentColor).toMatchInlineSnapshot(`"rgb(255, 0, 0)"`)
const cssFile = new File(join(appDir, 'pages/index.module.scss'))
try {
cssFile.replace('$var: red', '$var: purple')
await waitFor(2000) // wait for HMR
const refreshedColor = await browser.eval(
`window.getComputedStyle(document.querySelector('#verify-red')).color`
)
expect(refreshedColor).toMatchInlineSnapshot(`"rgb(128, 0, 128)"`)
// ensure text remained
expect(await browser.elementById('text-input').getValue()).toBe(
desiredText
)
} finally {
cssFile.restore()
}
})
})
describe.skip('Invalid CSS Module Usage in node_modules', () => {
const appDir = join(fixturesDir, 'invalid-module')
beforeAll(async () => {
await remove(join(appDir, '.next'))
})
it('should fail to build', async () => {
const { code, stderr } = await nextBuild(appDir, [], {
stderr: true,
})
expect(code).not.toBe(0)
expect(stderr).toContain('Failed to compile')
expect(stderr).toContain('node_modules/example/index.module.scss')
expect(stderr).toMatch(
/CSS Modules.*cannot.*be imported from within.*node_modules/
)
expect(stderr).toMatch(/Location:.*node_modules[\\/]example[\\/]index\.mjs/)
})
})
describe.skip('Invalid CSS Global Module Usage in node_modules', () => {
const appDir = join(fixturesDir, 'invalid-global-module')
beforeAll(async () => {
await remove(join(appDir, '.next'))
})
it('should fail to build', async () => {
const { code, stderr } = await nextBuild(appDir, [], {
stderr: true,
})
expect(code).not.toBe(0)
expect(stderr).toContain('Failed to compile')
expect(stderr).toContain('node_modules/example/index.scss')
expect(stderr).toMatch(
/Global CSS.*cannot.*be imported from within.*node_modules/
)
expect(stderr).toMatch(/Location:.*node_modules[\\/]example[\\/]index\.mjs/)
})
})
describe('Valid CSS Module Usage from within node_modules', () => {
const appDir = join(fixturesDir, 'nm-module')
beforeAll(async () => {
await remove(join(appDir, '.next'))
})
let appPort
let app
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've prerendered with relevant data`, async () => {
const content = await renderViaHTTP(appPort, '/')
const $ = cheerio.load(content)
const cssPreload = $('#nm-div')
expect(cssPreload.text()).toMatchInlineSnapshot(
`"{\\"message\\":\\"Why hello there\\"} {\\"redText\\":\\"example_redText__8_1ap\\"}"`
)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".example_redText__8_1ap{color:red}"`
)
})
})
describe('Valid Nested CSS Module Usage from within node_modules', () => {
const appDir = join(fixturesDir, 'nm-module-nested')
beforeAll(async () => {
await remove(join(appDir, '.next'))
})
let appPort
let app
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(async () => {
await killApp(app)
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've prerendered with relevant data`, async () => {
const content = await renderViaHTTP(appPort, '/')
const $ = cheerio.load(content)
const cssPreload = $('#nm-div')
expect(cssPreload.text()).toMatchInlineSnapshot(
`"{\\"message\\":\\"Why hello there\\"} {\\"other2\\":\\"example_other2__pD1TP\\",\\"subClass\\":\\"example_subClass___Qywg other_className__jR2X2\\"}"`
)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".other_other3__QRKUk{color:violet}.other_className__jR2X2{background:red;color:#ff0}.example_other2__pD1TP{color:red}.example_subClass___Qywg{background:blue}"`
)
})
})
describe('CSS Module Composes Usage (Basic)', () => {
// This is a very bad feature. Do not use it.
const appDir = join(fixturesDir, 'composes-basic')
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".index_className__phGSl{background:red;color:#ff0}.index_subClass__fPp6w{background:blue}"`
)
})
})
describe('CSS Module Composes Usage (External)', () => {
// This is a very bad feature. Do not use it.
const appDir = join(fixturesDir, 'composes-external')
let stdout
let code
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
})
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".other_className__e_JDW{background:red;color:#ff0}.index_subClass__fPp6w{background:blue}"`
)
})
})
describe('Dynamic Route CSS Module Usage', () => {
const appDir = join(fixturesDir, 'dynamic-route-module')
let stdout
let code
let app
let appPort
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(() => killApp(app))
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`"._post__home__a9vTy{background:red}"`
)
})
it('should apply styles correctly', async () => {
const browser = await webdriver(appPort, '/post-1')
const background = await browser
.elementByCss('#my-div')
.getComputedCss('background-color')
expect(background).toMatch(/rgb(a|)\(255, 0, 0/)
})
})
describe('Catch-all Route CSS Module Usage', () => {
const appDir = join(fixturesDir, 'catch-all-module')
let stdout
let code
let app
let appPort
beforeAll(async () => {
await remove(join(appDir, '.next'))
;({ code, stdout } = await nextBuild(appDir, [], {
stdout: true,
}))
appPort = await findPort()
app = await nextStart(appDir, appPort)
})
afterAll(() => killApp(app))
it('should have compiled successfully', () => {
expect(code).toBe(0)
expect(stdout).toMatch(/Compiled successfully/)
})
it('should apply styles correctly', async () => {
const browser = await webdriver(appPort, '/post-1')
const background = await browser
.elementByCss('#my-div')
.getComputedCss('background-color')
expect(background).toMatch(/rgb(a|)\(255, 0, 0/)
})
it(`should've emitted a single CSS file`, async () => {
const cssFolder = join(appDir, '.next/static/css')
const files = await readdir(cssFolder)
const cssFiles = files.filter((f) => /\.css$/.test(f))
expect(cssFiles.length).toBe(1)
const cssContent = await readFile(join(cssFolder, cssFiles[0]), 'utf8')
expect(cssContent.replace(/\/\*.*?\*\//g, '').trim()).toMatchInlineSnapshot(
`".___post__home__w1yuY{background:red}"`
)
})
})