kitchen-sink.test.js

const postcss = require('postcss')
const tailwind = require('../index.js')
const fs = require('fs')
const path = require('path')

function run(input, config = {}) {
  return postcss(tailwind(config)).process(input, { from: path.resolve(__filename) })
}

test('it works', () => {
  let config = {
    darkMode: 'class',
    purge: [path.resolve(__dirname, './kitchen-sink.test.html')],
    corePlugins: { preflight: false },
    theme: {
      extend: {
        screens: {
          portrait: { raw: '(orientation: portrait)' },
          range: { min: '1280px', max: '1535px' },
          multi: [{ min: '640px', max: '767px' }, { max: '868px' }],
        },
        gradientColorStops: {
          foo: '#bada55',
        },
        backgroundImage: {
          'hero--home-1': "url('/images/homepage-1.jpg')",
        },
      },
    },
    plugins: [
      require('@tailwindcss/aspect-ratio'),
      function ({ addVariant }) {
        addVariant(
          'foo',
          ({ container }) => {
            container.walkRules((rule) => {
              rule.selector = `.foo\\:${rule.selector.slice(1)}`
              rule.walkDecls((decl) => {
                decl.important = true
              })
            })
          },
          { before: 'sm' }
        )
      },
      function ({ addUtilities, addBase, theme }) {
        addBase({
          h1: {
            fontSize: theme('fontSize.2xl'),
            fontWeight: theme('fontWeight.bold'),
            '&:first-child': {
              marginTop: '0px',
            },
          },
        })
        addUtilities(
          {
            '.filter-none': {
              filter: 'none',
            },
            '.filter-grayscale': {
              filter: 'grayscale(100%)',
            },
          },
          ['responsive', 'hover']
        )
      },
    ],
  }

  let css = `
  @layer utilities {
    .custom-util {
      background: #abcdef;
    }
    * {
      margin: 10px;
    }
  }
  @layer components {
    .test-apply-font-variant {
      @apply ordinal tabular-nums;
    }
    .custom-component {
      background: #123456;
    }
    * {
      padding: 5px;
    }
    .foo .bg-black {
      appearance: none;
    }
  }
  @layer base {
    div {
      background: #654321;
    }
  }
  .theme-test {
    font-family: theme('fontFamily.sans');
    color: theme('colors.blue.500');
  }
  @screen lg {
    .screen-test {
      color: purple;
    }
  }
  .apply-1 {
    @apply mt-6;
  }
  .apply-2 {
    @apply mt-6;
  }
  .apply-test {
    @apply mt-6 bg-pink-500 hover:font-bold focus:hover:font-bold sm:bg-green-500 sm:focus:even:bg-pink-200;
  }
  .apply-components {
    @apply container mx-auto;
  }
  .drop-empty-rules {
    @apply hover:font-bold;
  }
  .apply-group {
    @apply group-hover:font-bold;
  }
  .apply-dark-mode {
    @apply dark:font-bold;
  }
  .apply-with-existing:hover {
    @apply font-normal sm:bg-green-500;
  }
  .multiple, .selectors {
    @apply font-bold group-hover:font-normal;
  }
  .list {
    @apply space-x-4;
  }
  .nested {
    .example {
      @apply font-bold hover:font-normal;
    }
  }
  .apply-order-a {
    @apply m-5 mt-6;
  }
  .apply-order-b {
    @apply mt-6 m-5;
  }
  .apply-dark-group-example-a {
    @apply dark:group-hover:bg-green-500;
  }
  .crazy-example {
    @apply sm:motion-safe:group-active:focus:opacity-10;
  }
  @tailwind base;
  @tailwind components;
  @tailwind utilities;
`

  return run(css, config).then((result) => {
    let expectedPath = path.resolve(__dirname, './kitchen-sink.test.css')
    let expected = fs.readFileSync(expectedPath, 'utf8')

    expect(result.css).toMatchFormattedCss(expected)
  })
})