/
important-boolean.test.js
137 lines (118 loc) · 3.15 KB
/
important-boolean.test.js
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import fs from 'fs'
import path from 'path'
import * as sharedState from '../src/lib/sharedState'
import { run, css, html } from './util/run'
test('important boolean', () => {
let config = {
important: true,
darkMode: 'class',
content: [path.resolve(__dirname, './important-boolean.test.html')],
corePlugins: { preflight: false },
plugins: [
function ({ addComponents, addUtilities }) {
addComponents(
{
'.btn': {
button: 'yes',
},
},
{ respectImportant: true }
)
addComponents(
{
'@font-face': {
'font-family': 'Inter',
},
'@page': {
margin: '1cm',
},
},
{ respectImportant: true }
)
addUtilities(
{
'.custom-util': {
button: 'no',
},
},
{ respectImportant: false }
)
},
],
}
let input = css`
@tailwind base;
@tailwind components;
@layer components {
.custom-component {
@apply font-bold;
}
.custom-important-component {
@apply text-center !important;
}
}
@tailwind utilities;
`
return run(input, config).then((result) => {
let expectedPath = path.resolve(__dirname, './important-boolean.test.css')
let expected = fs.readFileSync(expectedPath, 'utf8')
expect(result.css).toMatchFormattedCss(expected)
})
})
// This is in a describe block so we can use `afterEach` :)
describe('duplicate elision', () => {
let filePath = path.resolve(__dirname, './important-boolean-duplicates.test.html')
afterEach(async () => await fs.promises.unlink(filePath))
test('important rules are not duplicated when rebuilding', async () => {
let config = {
important: true,
content: [filePath],
}
await fs.promises.writeFile(
config.content[0],
html`
<div class="ml-2"></div>
<div class="ml-4"></div>
`
)
let input = css`
@tailwind utilities;
`
let result = await run(input, config)
let allContexts = Array.from(sharedState.contextMap.values())
let context = allContexts[allContexts.length - 1]
let ruleCacheSize1 = context.ruleCache.size
expect(result.css).toMatchFormattedCss(css`
.ml-2 {
margin-left: 0.5rem !important;
}
.ml-4 {
margin-left: 1rem !important;
}
`)
await fs.promises.writeFile(
config.content[0],
html`
<div class="ml-2"></div>
<div class="ml-6"></div>
`
)
result = await run(input, config)
let ruleCacheSize2 = context.ruleCache.size
expect(result.css).toMatchFormattedCss(css`
.ml-2 {
margin-left: 0.5rem !important;
}
.ml-4 {
margin-left: 1rem !important;
}
.ml-6 {
margin-left: 1.5rem !important;
}
`)
// The rule cache was effectively doubling in size previously
// because the rule cache was never de-duped
// This ensures this behavior doesn't return
expect(ruleCacheSize2 - ruleCacheSize1).toBeLessThan(10)
})
})