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apply.test.js
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apply.test.js
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import postcss from 'postcss'
import fs from 'fs'
import path from 'path'
import tailwind from '../../src/jit/index.js'
function run(input, config = {}) {
const { currentTestName } = expect.getState()
return postcss(tailwind(config)).process(input, {
from: `${path.resolve(__filename)}?test=${currentTestName}`,
})
}
test('@apply', () => {
let config = {
darkMode: 'class',
mode: 'jit',
purge: [path.resolve(__dirname, './apply.test.html')],
corePlugins: { preflight: false },
theme: {},
plugins: [],
}
let css = `
@tailwind base;
@tailwind components;
@tailwind utilities;
@layer components {
.basic-example {
@apply px-4 py-2 bg-blue-500 rounded-md;
}
.class-order {
@apply pt-4 pr-1 px-3 py-7 p-8;
}
.with-additional-properties {
font-weight: 500;
@apply text-right;
}
.variants {
@apply xl:focus:font-black hover:font-bold lg:font-light focus:font-medium font-semibold;
}
.only-variants {
@apply xl:focus:font-black hover:font-bold lg:font-light focus:font-medium;
}
.apply-group-variant {
@apply group-hover:text-center lg:group-hover:text-left;
}
.apply-dark-variant {
@apply dark:text-center dark:hover:text-right lg:dark:text-left;
}
.apply-custom-utility {
@apply custom-util hover:custom-util lg:custom-util xl:focus:custom-util;
}
.multiple, .selectors {
@apply px-4 py-2 bg-blue-500 rounded-md;
}
.multiple-variants, .selectors-variants {
@apply hover:text-center active:text-right lg:focus:text-left;
}
.multiple-group, .selectors-group {
@apply group-hover:text-center lg:group-hover:text-left;
}
/* TODO: This works but the generated CSS is unnecessarily verbose. */
.complex-utilities {
@apply ordinal tabular-nums focus:diagonal-fractions shadow-lg hover:shadow-xl;
}
.basic-nesting-parent {
.basic-nesting-child {
@apply font-bold hover:font-normal;
}
}
.use-base-only-a {
@apply font-bold;
}
.use-base-only-b {
@apply use-base-only-a font-normal;
}
.use-dependant-only-a {
@apply font-bold;
}
.use-dependant-only-b {
@apply use-dependant-only-a font-normal;
}
.btn {
@apply font-bold py-2 px-4 rounded;
}
.btn-blue {
@apply btn bg-blue-500 hover:bg-blue-700 text-white;
}
.recursive-apply-a {
@apply font-black sm:font-thin;
}
.recursive-apply-b {
@apply recursive-apply-a font-semibold md:font-extralight;
}
.recursive-apply-c {
@apply recursive-apply-b font-bold lg:font-light;
}
.use-with-other-properties-base {
color: green;
@apply font-bold;
}
.use-with-other-properties-component {
@apply use-with-other-properties-base;
}
.add-sibling-properties {
padding: 2rem;
@apply px-4 hover:px-2 lg:px-10 xl:focus:px-1;
padding-top: 3px;
@apply use-with-other-properties-base;
}
h1 {
@apply text-2xl lg:text-2xl sm:text-3xl;
}
h2 {
@apply text-2xl;
@apply lg:text-2xl;
@apply sm:text-2xl;
}
.important-modifier {
@apply px-4 !rounded-md;
}
}
@layer utilities {
.custom-util {
custom: stuff;
}
.foo {
@apply animate-spin;
}
.bar {
@apply animate-pulse !important;
}
}
`
return run(css, config).then((result) => {
let expectedPath = path.resolve(__dirname, './apply.test.css')
let expected = fs.readFileSync(expectedPath, 'utf8')
expect(result.css).toMatchFormattedCss(expected)
})
})
test('@apply error with unknown utility', async () => {
let config = {
darkMode: 'class',
purge: [path.resolve(__dirname, './apply.test.html')],
corePlugins: { preflight: false },
plugins: [],
}
let css = `
@tailwind components;
@tailwind utilities;
@layer components {
.foo {
@apply a-utility-that-does-not-exist;
}
}
`
await expect(run(css, config)).rejects.toThrowError('class does not exist')
})
test('@apply error with nested @screen', async () => {
let config = {
darkMode: 'class',
purge: [path.resolve(__dirname, './apply.test.html')],
corePlugins: { preflight: false },
plugins: [],
}
let css = `
@tailwind components;
@tailwind utilities;
@layer components {
.foo {
@screen md {
@apply text-black;
}
}
}
`
await expect(run(css, config)).rejects.toThrowError(
'@apply is not supported within nested at-rules like @screen'
)
})
test('@apply error with nested @anyatrulehere', async () => {
let config = {
darkMode: 'class',
purge: [path.resolve(__dirname, './apply.test.html')],
corePlugins: { preflight: false },
plugins: [],
}
let css = `
@tailwind components;
@tailwind utilities;
@layer components {
.foo {
@genie {
@apply text-black;
}
}
}
`
await expect(run(css, config)).rejects.toThrowError(
'@apply is not supported within nested at-rules like @genie'
)
})