index.js

import fs from 'fs';
import path from 'path';
import postcss from 'postcss';
import reporter from 'postcss-reporter';
import plugin from '../';

const read = name =>
  fs.readFileSync(path.join(__dirname, '..', 'test', 'fixture', name), 'utf8');

var opts = {
  basePath: 'test/fixture',
  maps: [
    {
      config: {
        foo: 'foo value',
        bar: 'bar value',
      },
    },
    'dummy.yml',
    'fonts.yml',
    'breakpoints.yml',
    'assets.yml',
  ],
};

['object', 'value', 'block', 'atrule'].forEach(test => {
  const input = read(`${test}/input.css`);

  postcss()
    .use(plugin(opts))
    .use(reporter)
    .process(input)
    .then(result => {
      console.log(result.css);
    })
    .catch(console.error);
});