astro/test/astro-scoped-styles.test.js
Matthew Phillips ad9c3b1d8d
Parse inner JSX as Astro (#67)
* Parse inner JSX as Astro

This completes the compiler changes, updating the parser so that it parses inner "JSX" as Astro. It does this by finding the start and end of HTML tags and feeds that back into the parser.

The result is a structure like this:

```
{
  type: 'MustacheTag',
  expression: [
    {
      type: 'Expression',
      codeStart: 'colors.map(color => (',
      codeEnd: '}}'
      children: [ {
        type: 'Fragment',
        children: [ {
          type: 'Element',
          name: 'div'
        } ]
      } ]
    }
  ]
}
```

There is a new Node type, `Expression`.  Note that `MustacheTag` remains in the tree, all it contains is an Expression though. I could spend some time trying to remove it, there's just a few places that expect it to exist.

* Update import to the transform

* Transform prism components into expressions
2021-04-09 14:09:13 -04:00

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import { suite } from 'uvu';
import * as assert from 'uvu/assert';
import { scopeRule } from '../lib/compiler/transform/postcss-scoped-styles/index.js';
const ScopedStyles = suite('Astro PostCSS Scoped Styles Plugin');
const className = 'astro-abcd1234';
ScopedStyles('Scopes rules correctly', () => {
// Note: assume all selectors have no unnecessary spaces (i.e. must be minified)
const tests = {
'.class': `.class.${className}`,
h1: `h1.${className}`,
'.nav h1': `.nav.${className} h1.${className}`,
'.class+.class': `.class.${className}+.class.${className}`,
'.class~:global(a)': `.class.${className}~a`,
'.class *': `.class.${className} .${className}`,
'.class>*': `.class.${className}>.${className}`,
'.class :global(*)': `.class.${className} *`,
'.class :global(.nav:not(.is-active))': `.class.${className} .nav:not(.is-active)`, // preserve nested parens
'.class :global(ul li)': `.class.${className} ul li`, // allow doubly-scoped selectors
'.class:not(.is-active)': `.class.${className}:not(.is-active)`, // Note: the :not() selector can NOT contain multiple classes, so this is correct; if this causes issues for some people then its worth a discussion
'body h1': `body h1.${className}`, // body shouldnt be scoped; its not a component
from: 'from', // ignore keyframe keywords (below)
to: 'to',
'55%': '55%',
};
for (const [given, expected] of Object.entries(tests)) {
assert.equal(scopeRule(given, className), expected);
}
});
ScopedStyles.run();