utils.js

import fs from 'fs';
import path from 'path';
import assert from 'assert';

export function addTests(fPath, markdown, skip) {
  var input,
      stat = fs.statSync(fPath);

  if (stat.isFile()) {
    input = fs.readFileSync(fPath, 'utf8');

    input = input.replace(/→/g, '\t');

    describe(fPath, function () {
      input.replace(/^\.\n([\s\S]*?)^\.\n([\s\S]*?)^\.$/gm, function(__, md, html, offset, orig) {
        var line = orig.slice(0, offset).split(/\r?\n/g).length;

        // Also skip tests if file name starts with "_"
        if (!skip && path.basename(fPath)[0] !== '_') {
          it('line ' + line, function () {
            assert.strictEqual(html, markdown.render(md));
          });
        } else {
          it.skip('line ' + line, function () {
            assert.strictEqual(html, markdown.render(md));
          });
        }
      });
    });

    return;
  }

  if (stat.isDirectory()) {
    fs.readdirSync(fPath).forEach(function (name) {
      addTests(path.join(fPath, name), markdown, skip);
    });
  }
}