/
prefix.test.js
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/
prefix.test.js
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import fs from 'fs'
import path from 'path'
import { run, html, css } from './util/run'
test('prefix', () => {
let config = {
prefix: 'tw-',
darkMode: 'class',
content: [path.resolve(__dirname, './prefix.test.html')],
corePlugins: { preflight: false },
theme: {
animation: {
spin: 'spin 1s linear infinite',
ping: 'ping 1s cubic-bezier(0, 0, 0.2, 1) infinite',
},
keyframes: {
spin: { to: { transform: 'rotate(360deg)' } },
},
},
plugins: [
function ({ addComponents, addUtilities }) {
addComponents({
'.btn-prefix': {
button: 'yes',
},
})
addComponents(
{
'.btn-no-prefix': {
button: 'yes',
},
},
{ respectPrefix: false }
)
addUtilities({
'.custom-util-prefix': {
button: 'no',
},
})
addUtilities(
{
'.custom-util-no-prefix': {
button: 'no',
},
},
{ respectPrefix: false }
)
},
],
}
let input = css`
@tailwind base;
@tailwind components;
@layer components {
.custom-component {
@apply tw-font-bold dark:group-hover:tw-font-normal;
}
}
@tailwind utilities;
@layer utilities {
.custom-utility {
foo: bar;
}
}
`
return run(input, config).then((result) => {
let expectedPath = path.resolve(__dirname, './prefix.test.css')
let expected = fs.readFileSync(expectedPath, 'utf8')
expect(result.css).toMatchFormattedCss(expected)
})
})
it('negative values: marker before prefix', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`<div class="-tw-top-1"></div>` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.-tw-top-1 {
top: -0.25rem;
}
`)
})
it('negative values: marker after prefix', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`<div class="tw--top-1"></div>` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.tw--top-1 {
top: -0.25rem;
}
`)
})
it('negative values: marker before prefix and arbitrary value', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`<div class="-tw-top-[1px]"></div>` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.-tw-top-\[1px\] {
top: -1px;
}
`)
})
it('negative values: marker after prefix and arbitrary value', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`<div class="tw--top-[1px]"></div>` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.tw--top-\[1px\] {
top: -1px;
}
`)
})
it('negative values: no marker and arbitrary value', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`<div class="tw-top-[-1px]"></div>` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.tw-top-\[-1px\] {
top: -1px;
}
`)
})
it('negative values: variant versions', async () => {
let config = {
prefix: 'tw-',
content: [
{
raw: html`
<div class="hover:-tw-top-1 hover:tw--top-1"></div>
<div class="hover:-tw-top-[1px] hover:tw--top-[1px]"></div>
<div class="hover:tw-top-[-1px]"></div>
<!-- this one should not generate anything -->
<div class="-hover:tw-top-1"></div>
`,
},
],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.hover\:-tw-top-1:hover {
top: -0.25rem;
}
.hover\:tw--top-1:hover {
top: -0.25rem;
}
.hover\:-tw-top-\[1px\]:hover {
top: -1px;
}
.hover\:tw--top-\[1px\]:hover {
top: -1px;
}
.hover\:tw-top-\[-1px\]:hover {
top: -1px;
}
`)
})
it('negative values: prefix and apply', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
.a {
@apply hover:tw--top-1;
}
.b {
@apply hover:-tw-top-1;
}
.c {
@apply hover:-tw-top-[1px];
}
.d {
@apply hover:tw--top-[1px];
}
.e {
@apply hover:tw-top-[-1px];
}
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.a:hover {
top: -0.25rem;
}
.b:hover {
top: -0.25rem;
}
.c:hover {
top: -1px;
}
.d:hover {
top: -1px;
}
.e:hover {
top: -1px;
}
`)
})
it('negative values: prefix in the safelist', async () => {
let config = {
prefix: 'tw-',
safelist: [{ pattern: /-tw-top-1/g }, { pattern: /tw--top-1/g }],
theme: {
inset: {
1: '0.25rem',
},
},
content: [{ raw: html`` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.-tw-top-1 {
top: -0.25rem;
}
.tw--top-1 {
top: -0.25rem;
}
`)
})
it('prefix with negative values and variants in the safelist', async () => {
let config = {
prefix: 'tw-',
safelist: [
{ pattern: /-tw-top-1/, variants: ['hover', 'sm:hover'] },
{ pattern: /tw--top-1/, variants: ['hover', 'sm:hover'] },
],
theme: {
inset: {
1: '0.25rem',
},
},
content: [{ raw: html`` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
await run(input, config)
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.-tw-top-1 {
top: -0.25rem;
}
.tw--top-1 {
top: -0.25rem;
}
.hover\:-tw-top-1:hover {
top: -0.25rem;
}
.hover\:tw--top-1:hover {
top: -0.25rem;
}
@media (min-width: 640px) {
.sm\:hover\:-tw-top-1:hover {
top: -0.25rem;
}
.sm\:hover\:tw--top-1:hover {
top: -0.25rem;
}
}
`)
})
it('prefix does not detect and generate unnecessary classes', async () => {
let config = {
prefix: 'tw-_',
content: [{ raw: html`-aaa-filter aaaa-table aaaa-hidden` }],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
`
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css``)
})
it('supports prefixed utilities using arbitrary values', async () => {
let config = {
prefix: 'tw-',
content: [{ raw: html`foo` }],
corePlugins: { preflight: false },
}
let input = css`
.foo {
@apply tw-text-[color:rgb(var(--button-background,var(--primary-button-background)))];
@apply tw-ease-[cubic-bezier(0.77,0,0.175,1)];
@apply tw-rounded-[min(4px,var(--input-border-radius))];
}
`
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.foo {
color: rgb(var(--button-background, var(--primary-button-background)));
transition-timing-function: cubic-bezier(0.77, 0, 0.175, 1);
border-radius: min(4px, var(--input-border-radius));
}
`)
})
it('supports non-word prefixes (1)', async () => {
let config = {
prefix: '@',
content: [
{
raw: html`
<div class="@underline"></div>
<div class="@bg-black"></div>
<div class="@[color:red]"></div>
<div class="hover:before:@content-['Hovering']"></div>
<div class="my-utility"></div>
<div class="foo"></div>
<!-- these won't be detected -->
<div class="overline"></div>
`,
},
],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
@layer utilities {
.my-utility {
color: orange;
}
}
.foo {
@apply @text-white;
@apply [background-color:red];
}
`
const result = await run(input, config)
expect(result.css).toMatchFormattedCss(css`
.\@bg-black {
--tw-bg-opacity: 1;
background-color: rgb(0 0 0 / var(--tw-bg-opacity));
}
.\@underline {
text-decoration-line: underline;
}
.my-utility {
color: orange;
}
.foo {
--tw-text-opacity: 1;
color: rgb(255 255 255 / var(--tw-text-opacity));
background-color: red;
}
.hover\:before\:\@content-\[\'Hovering\'\]:hover::before {
--tw-content: 'Hovering';
content: var(--tw-content);
}
`)
})
it('supports non-word prefixes (2)', async () => {
let config = {
prefix: '@]$',
content: [
{
raw: html`
<div class="@]$underline"></div>
<div class="@]$bg-black"></div>
<div class="@]$[color:red]"></div>
<div class="hover:before:@]$content-['Hovering']"></div>
<div class="my-utility"></div>
<div class="foo"></div>
<!-- these won't be detected -->
<div class="overline"></div>
`,
},
],
corePlugins: { preflight: false },
}
let input = css`
@tailwind utilities;
@layer utilities {
.my-utility {
color: orange;
}
}
.foo {
@apply @]$text-white;
@apply [background-color:red];
}
`
const result = await run(input, config)
// TODO: The class `.hover\:before\:\@\]\$content-\[\'Hovering\'\]:hover::before` is not generated
// This happens because of the parenthesis/brace/bracket clipping performed on candidates
expect(result.css).toMatchFormattedCss(css`
.\@\]\$bg-black {
--tw-bg-opacity: 1;
background-color: rgb(0 0 0 / var(--tw-bg-opacity));
}
.\@\]\$underline {
text-decoration-line: underline;
}
.my-utility {
color: orange;
}
.foo {
--tw-text-opacity: 1;
color: rgb(255 255 255 / var(--tw-text-opacity));
background-color: red;
}
`)
})