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import path from 'node:path'
import { describe } from 'vitest'
import {
candidate,
css,
fetchStyles,
html,
js,
json,
jsx,
retryAssertion,
test,
ts,
txt,
yaml,
} from '../utils'
describe.each(['postcss', 'lightningcss'])('%s', (transformer) => {
test(
`production build`,
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
`,
'project-a/package.json': txt`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "^7"
}
}
`,
'project-a/vite.config.ts': ts`
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
css: ${transformer === 'postcss' ? '{}' : "{ transformer: 'lightningcss' }"},
build: { cssMinify: false },
plugins: [tailwindcss()],
})
`,
'project-a/index.html': html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline m-2">Hello, world!</div>
</body>
`,
'project-a/tailwind.config.js': js`
export default {
content: ['../project-b/src/**/*.js'],
}
`,
'project-a/src/index.css': css`
@reference 'tailwindcss/theme';
@import 'tailwindcss/utilities';
@config '../tailwind.config.js';
@source '../../project-b/src/**/*.html';
`,
'project-b/src/index.html': html`
<div class="flex" />
`,
'project-b/src/index.js': js`
const className = "content-['project-b/src/index.js']"
module.exports = { className }
`,
},
},
async ({ root, fs, exec, expect }) => {
await exec('pnpm vite build', { cwd: path.join(root, 'project-a') })
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
let [filename] = files[0]
await fs.expectFileToContain(filename, [
candidate`underline`,
candidate`m-2`,
candidate`flex`,
candidate`content-['project-b/src/index.js']`,
])
},
)
test(
'dev mode',
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
`,
'project-a/package.json': txt`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "^7"
}
}
`,
'project-a/vite.config.ts': ts`
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
css: ${transformer === 'postcss' ? '{}' : "{ transformer: 'lightningcss' }"},
build: { cssMinify: false },
plugins: [tailwindcss()],
})
`,
'project-a/index.html': html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline">Hello, world!</div>
</body>
`,
'project-a/about.html': html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="font-bold">Tailwind Labs</div>
</body>
`,
'project-a/tailwind.config.js': js`
export default {
content: ['../project-b/src/**/*.js'],
}
`,
'project-a/src/index.css': css`
@reference 'tailwindcss/theme';
@import 'tailwindcss/utilities';
@import './imported.css';
@config '../tailwind.config.js';
@source '../../project-b/src/**/*.html';
`,
'project-a/src/imported.css': css`
.imported {
color: red;
}
`,
'project-b/src/index.html': html`
<div class="flex" />
`,
'project-b/src/index.js': js`
const className = "content-['project-b/src/index.js']"
module.exports = { className }
`,
},
},
async ({ root, spawn, fs, expect }) => {
let process = await spawn('pnpm vite dev', {
cwd: path.join(root, 'project-a'),
})
await process.onStdout((m) => m.includes('ready in'))
let url = ''
await process.onStdout((m) => {
let match = /Local:\s*(http.*)\//.exec(m)
if (match) url = match[1]
return Boolean(url)
})
await retryAssertion(async () => {
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`font-bold`)
expect(styles).toContain(candidate`imported`)
})
await retryAssertion(async () => {
// Updates are additive and cause new candidates to be added.
await fs.write(
'project-a/index.html',
html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline m-2">Hello, world!</div>
</body>
`,
)
let styles = await fetchStyles(url)
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`font-bold`)
expect(styles).toContain(candidate`imported`)
expect(styles).toContain(candidate`m-2`)
})
await retryAssertion(async () => {
// Manually added `@source`s are watched and trigger a rebuild
await fs.write(
'project-b/src/index.js',
js`
const className = "[.changed_&]:content-['project-b/src/index.js']"
module.exports = { className }
`,
)
let styles = await fetchStyles(url)
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`font-bold`)
expect(styles).toContain(candidate`imported`)
expect(styles).toContain(candidate`m-2`)
expect(styles).toContain(candidate`[.changed_&]:content-['project-b/src/index.js']`)
})
await retryAssertion(async () => {
// After updates to the CSS file, all previous candidates should still be in
// the generated CSS
await fs.write(
'project-a/src/index.css',
css`
${await fs.read('project-a/src/index.css')}
.red {
color: red;
}
`,
)
let styles = await fetchStyles(url)
expect(styles).toContain(candidate`red`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`imported`)
expect(styles).toContain(candidate`m-2`)
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`[.changed_&]:content-['project-b/src/index.js']`)
expect(styles).toContain(candidate`font-bold`)
})
await retryAssertion(async () => {
// Trigger a partial rebuild for the next test
await fs.write(
'project-a/index.html',
html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="m-4">Hello, world!</div>
</body>
`,
)
let styles = await fetchStyles(url)
expect(styles).toContain(candidate`m-4`)
})
await retryAssertion(async () => {
// Changing an `@imported` CSS file after a partial rebuild also triggers the correct update
await fs.write(
'project-a/src/imported.css',
css`
.imported-updated {
color: red;
}
`,
)
let styles = await fetchStyles(url)
expect(styles).toContain(candidate`red`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`m-2`)
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`[.changed_&]:content-['project-b/src/index.js']`)
expect(styles).toContain(candidate`font-bold`)
expect(styles).toContain(candidate`imported-updated`)
})
},
)
// https://github.com/tailwindlabs/tailwindcss/issues/20346
test(
'dev mode + symlinked `@source` files pick up changes to the real file',
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
- packages/*
`,
'project-a/package.json': txt`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"repro-package": "workspace:*",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "^7"
}
}
`,
'project-a/vite.config.ts': ts`
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
css: ${transformer === 'postcss' ? '{}' : "{ transformer: 'lightningcss' }"},
build: { cssMinify: false },
plugins: [tailwindcss()],
})
`,
'project-a/index.html': html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline">Hello, world!</div>
</body>
`,
// The `@source` points through the `node_modules` symlink that pnpm
// creates for the workspace package. Vite's file watcher ignores
// `node_modules` by default, so the symlinked path can not be watched.
// The real file (in `packages/repro-package`) has to be watched
// instead.
'project-a/src/index.css': css`
@reference 'tailwindcss/theme';
@import 'tailwindcss/utilities';
@source '../node_modules/repro-package/source.html';
`,
'packages/repro-package/package.json': json`
{
"name": "repro-package",
"private": true,
"version": "1.0.0"
}
`,
'packages/repro-package/source.html': html`
<div class="content-['v1']">
Hello, world!
</div>
`,
},
},
async ({ root, spawn, fs, expect }) => {
let process = await spawn('pnpm vite dev', {
cwd: path.join(root, 'project-a'),
})
await process.onStdout((m) => m.includes('ready in'))
let url = ''
await process.onStdout((m) => {
let match = /Local:\s*(http.*)\//.exec(m)
if (match) url = match[1]
return Boolean(url)
})
await retryAssertion(async () => {
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`content-['v1']`)
})
await retryAssertion(async () => {
// Changes to the real file (behind the symlink) should be picked up
await fs.write(
'packages/repro-package/source.html',
html`
<div class="content-['v1'] content-['v2']">
Hello, world!
</div>
`,
)
let styles = await fetchStyles(url)
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`content-['v1']`)
expect(styles).toContain(candidate`content-['v2']`)
})
},
)
test(
'watch mode',
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
`,
'project-a/package.json': txt`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "^7"
}
}
`,
'project-a/vite.config.ts': ts`
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
build: { cssMinify: false },
plugins: [tailwindcss()],
})
`,
'project-a/index.html': html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline text-primary">Hello, world!</div>
</body>
`,
'project-a/tailwind.config.js': js`
export default {
content: ['../project-b/src/**/*.js'],
}
`,
'project-a/src/index.css': css`
@reference 'tailwindcss/theme';
@import 'tailwindcss/utilities';
@import './custom-theme.css';
@config '../tailwind.config.js';
@source '../../project-b/src/**/*.html';
`,
'project-a/src/custom-theme.css': css`
/* Will be overwritten later */
@theme {
--color-primary: black;
}
`,
'project-b/src/index.html': html`
<div class="flex" />
`,
'project-b/src/index.js': js`
const className = "content-['project-b/src/index.js']"
module.exports = { className }
`,
},
},
async ({ root, spawn, fs, expect }) => {
let process = await spawn('pnpm vite build --watch', {
cwd: path.join(root, 'project-a'),
})
await process.onStdout((m) => m.includes('built in'))
let filename = ''
await retryAssertion(async () => {
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
filename = files[0][0]
})
await fs.expectFileToContain(filename, [
candidate`underline`,
candidate`flex`,
css`
.text-primary {
color: var(--color-primary);
}
`,
])
await retryAssertion(async () => {
await fs.write(
'project-a/src/custom-theme.css',
css`
/* Overriding the primary color */
@theme {
--color-primary: red;
}
`,
)
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
let [, styles] = files[0]
expect(styles).toContain(css`
.text-primary {
color: var(--color-primary);
}
`)
})
await retryAssertion(async () => {
// Updates are additive and cause new candidates to be added.
await fs.write(
'project-a/index.html',
html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline m-2">Hello, world!</div>
</body>
`,
)
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
let [, styles] = files[0]
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`m-2`)
})
await retryAssertion(async () => {
// Manually added `@source`s are watched and trigger a rebuild
await fs.write(
'project-b/src/index.js',
js`
const className = "[.changed_&]:content-['project-b/src/index.js']"
module.exports = { className }
`,
)
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
let [, styles] = files[0]
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`m-2`)
expect(styles).toContain(candidate`[.changed_&]:content-['project-b/src/index.js']`)
})
await retryAssertion(async () => {
// After updates to the CSS file, all previous candidates should still be in
// the generated CSS
await fs.write(
'project-a/src/index.css',
css`
${await fs.read('project-a/src/index.css')}
.red {
color: red;
}
`,
)
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
let [, styles] = files[0]
expect(styles).toContain(candidate`underline`)
expect(styles).toContain(candidate`flex`)
expect(styles).toContain(candidate`m-2`)
expect(styles).toContain(candidate`[.changed_&]:content-['project-b/src/index.js']`)
expect(styles).toContain(candidate`red`)
})
},
)
describe.sequential.each([['^6'], ['7.0.8'], ['7.1.12'], ['7.3.1'], ['8.0.0']])(
'Using Vite %s',
(version) => {
test(
'external source file changes trigger a full reload',
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
`,
'project-a/package.json': json`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "${version}"
}
}
`,
'project-a/vite.config.ts': ts`
import fs from 'node:fs'
import path from 'node:path'
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
css: ${transformer === 'postcss' ? '{}' : "{ transformer: 'lightningcss' }"},
build: { cssMinify: false },
plugins: [tailwindcss()],
logLevel: 'info',
})
`,
'project-a/index.html': html`
<html>
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div id="app"></div>
<script type="module" src="./src/main.ts"></script>
</body>
</html>
`,
'project-a/src/main.ts': jsx`import { classes } from './app'`,
'project-a/src/app.ts': jsx`export let classes = "content-['project-a/src/app.ts']"`,
'project-a/src/index.css': css`
@import 'tailwindcss';
@source '../../project-b/**/*.php';
`,
'project-b/src/index.php': html`
<div
class="content-['project-b/src/index.php']"
></div>
`,
},
},
async ({ root, spawn, fs, expect }) => {
let process = await spawn('pnpm vite dev --debug hmr', {
cwd: path.join(root, 'project-a'),
})
await process.onStdout((m) => m.includes('ready in'))
let url = ''
await process.onStdout((m) => {
let match = /Local:\s*(http.*)\//.exec(m)
if (match) url = match[1]
return Boolean(url)
})
await retryAssertion(async () => {
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`content-['project-b/src/index.php']`)
})
// Flush all messages so that we can be sure the next messages are from
// the file changes we're about to make
process.flush()
// Changing an external .php file should trigger a full reload
{
await fs.write(
'project-b/src/index.php',
txt`<div class="content-['updated:project-b/src/index.php']"></div>`,
)
// Ensure the page reloaded
if (version === '^6' || version === '7.0.8') {
await process.onStdout((m) => m.includes('page reload') && m.includes('index.php'))
} else {
await process.onStderr(
(m) => m.includes('vite:hmr (client)') && m.includes('index.php'),
)
}
await process.onStderr((m) => m.includes('vite:hmr (ssr)') && m.includes('index.php'))
// Ensure the styles were regenerated with the new content
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`content-['updated:project-b/src/index.php']`)
}
},
)
},
)
// https://github.com/tailwindlabs/tailwindcss/issues/20320
// https://github.com/tailwindlabs/tailwindcss/issues/19903
test(
'editing scanned files that Vite can process as modules does not trigger a full reload',
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
`,
'project-a/package.json': json`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "^8"
}
}
`,
'project-a/vite.config.ts': ts`
import fs from 'node:fs'
import path from 'node:path'
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
css: ${transformer === 'postcss' ? '{}' : "{ transformer: 'lightningcss' }"},
build: { cssMinify: false },
plugins: [
tailwindcss(),
{
// A plugin that processes a custom file type into a JS
// module, similar to e.g. \`.vue\` or \`.svelte\` files
name: 'custom-file-type',
transform(code, id) {
if (id.endsWith('.custom')) {
return { code: 'export default ' + JSON.stringify(code), map: null }
}
},
},
{
// Log all HMR payloads to a file so the test can assert on
// them
name: 'hmr-wiretap',
configureServer(server) {
let logFile = path.resolve('hmr.log')
fs.writeFileSync(logFile, '')
for (let environment of Object.values(server.environments)) {
let send = environment.hot.send.bind(environment.hot)
environment.hot.send = (payload) => {
fs.appendFileSync(logFile, JSON.stringify(payload) + '\\n')
return send(payload)
}
}
},
},
],
})
`,
'project-a/index.html': html`
<html>
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div id="app"></div>
<script type="module" src="./src/main.ts"></script>
</body>
</html>
`,
'project-a/src/main.ts': ts`
import compA from './comp-a.custom'
import snippet from './snippet.php?raw'
console.log(compA, snippet)
`,
'project-a/src/snippet.php': html`
<div
class="content-['src/snippet.php']"
></div>
`,
'project-a/src/comp-a.custom': html`
<div
class="content-['src/comp-a.custom']"
></div>
`,
'project-a/src/comp-b.custom': html`
<div
class="content-['src/comp-b.custom']"
></div>
`,
'project-a/src/lazy.tsx': jsx`
export default function Lazy() {
return <div className="content-['src/lazy.tsx']" />
}
`,
'project-a/src/unimported.css': css`
.unimported {
color: red;
}
`,
'project-a/src/index.css': css`
@import 'tailwindcss';
@source '../../project-b/**/*.php';
`,
'project-b/src/index.php': html`
<div
class="content-['project-b/src/index.php']"
></div>
`,
},
},
async ({ root, spawn, fs, expect }) => {
let process = await spawn('pnpm vite dev', {
cwd: path.join(root, 'project-a'),
})
await process.onStdout((m) => m.includes('ready in'))
let url = ''
await process.onStdout((m) => {
let match = /Local:\s*(http.*)\//.exec(m)
if (match) url = match[1]
return Boolean(url)
})
await retryAssertion(async () => {
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`content-['src/lazy.tsx']`)
expect(styles).toContain(candidate`content-['src/comp-b.custom']`)
expect(styles).toContain(candidate`content-['project-b/src/index.php']`)
})
// Load `main.ts`, `comp-a.custom`, and `snippet.php?raw` as real
// modules, like a browser visiting the page would
await fetch(`${url}/src/main.ts`)
await fetch(`${url}/src/comp-a.custom?import`)
await fetch(`${url}/src/snippet.php?raw`)
// Changing a scanned `.tsx` file that is not part of the module graph
// (e.g. a lazily-loaded route that hasn't been visited yet) should not
// trigger a full reload, but new classes should still apply
//
// https://github.com/tailwindlabs/tailwindcss/issues/20320
{
await fs.write(
'project-a/src/lazy.tsx',
jsx`
export default function Lazy() {
return <div className="content-['updated:src/lazy.tsx']" />
}
`,
)
await retryAssertion(async () => {
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`content-['updated:src/lazy.tsx']`)
})
expect(await fs.read('project-a/hmr.log')).not.toContain('full-reload')
}
// The same holds for a custom file type as long as some file of the
// same type was processed as a module before
{
await fs.write(
'project-a/src/comp-b.custom',
html`<div class="content-['updated:src/comp-b.custom']"></div>`,
)
await retryAssertion(async () => {
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`content-['updated:src/comp-b.custom']`)
})
expect(await fs.read('project-a/hmr.log')).not.toContain('full-reload')
}
// Changing a scanned stylesheet that is not part of the module graph
// (e.g. a component stylesheet that a framework plugin compiles into
// the component) should not trigger a full reload either
//
// https://github.com/tailwindlabs/tailwindcss/issues/19903
{
let updates = (await fs.read('project-a/hmr.log')).split('"type":"update"').length
await fs.write(
'project-a/src/unimported.css',
css`
.unimported {
color: blue;
}
`,
)
// Wait until the change was handled and an update was pushed
await retryAssertion(async () => {
let log = await fs.read('project-a/hmr.log')
expect(log.split('"type":"update"').length).toBeGreaterThan(updates)
})
expect(await fs.read('project-a/hmr.log')).not.toContain('full-reload')
}
// Changing an external file (e.g. a PHP template) should still trigger
// a full reload. This must work even though `snippet.php` is part of
// the module graph via the `?raw` import: a query import only pulls
// the file's contents into the graph (and creates an untransformed
// module node for the underlying file), it is not evidence that Vite
// processes `.php` files as modules.
{
await fs.write(
'project-b/src/index.php',
html`<div class="content-['updated:project-b/src/index.php']"></div>`,
)
await retryAssertion(async () => {
expect(await fs.read('project-a/hmr.log')).toContain('full-reload')
})
let styles = await fetchStyles(url, '/index.html')
expect(styles).toContain(candidate`content-['updated:project-b/src/index.php']`)
}
},
)
test(
`source(none) disables looking at the module graph`,
{
fs: {
'package.json': json`{}`,
'pnpm-workspace.yaml': yaml`
#
packages:
- project-a
`,
'project-a/package.json': txt`
{
"type": "module",
"dependencies": {
"@tailwindcss/vite": "workspace:^",
"tailwindcss": "workspace:^"
},
"devDependencies": {
${transformer === 'lightningcss' ? `"lightningcss": "^1",` : ''}
"vite": "^7"
}
}
`,
'project-a/vite.config.ts': ts`
import tailwindcss from '@tailwindcss/vite'
import { defineConfig } from 'vite'
export default defineConfig({
css: ${transformer === 'postcss' ? '{}' : "{ transformer: 'lightningcss' }"},
build: { cssMinify: false },
plugins: [tailwindcss()],
})
`,
'project-a/index.html': html`
<head>
<link rel="stylesheet" href="./src/index.css" />
</head>
<body>
<div class="underline m-2">Hello, world!</div>
</body>
`,
'project-a/src/index.css': css`
@import 'tailwindcss' source(none);
@source '../../project-b/src/**/*.html';
`,
'project-b/src/index.html': html`
<div class="flex" />
`,
'project-b/src/index.js': js`
const className = "content-['project-b/src/index.js']"
module.exports = { className }
`,
},
},
async ({ root, fs, exec, expect }) => {
await exec('pnpm vite build', { cwd: path.join(root, 'project-a') })
let files = await fs.glob('project-a/dist/**/*.css')
expect(files).toHaveLength(1)
let [filename] = files[0]
// `underline` and `m-2` are only present from files in the module graph
// which we've explicitly disabled with source(none) so they should not
// be present
await fs.expectFileNotToContain(filename, [
//
candidate`underline`,
candidate`m-2`,
])
// The files from `project-b` should be included because there is an
// explicit `@source` directive for it
await fs.expectFileToContain(filename, [
//
candidate`flex`,
])
// The explicit source directive only covers HTML files, so the JS file
// should not be included
await fs.expectFileNotToContain(filename, [