Add render function for Inky html tags

lib/__tests__/render.test.js

@@ -0,0 +1,24 @@
+const _ = require('lodash');
+const render = require('../render');
+
+describe('render', () => {
+  describe('loadFiles', () => {
+    it('should display an empty array by not found files', () => {
+      const content = '<h1>Hello Wold</h1>';
+      const buildContent = render._renderInky(content);
+
+      expect.assertions(1);
+      return expect(buildContent).resolves.toBe(content);
+    });
+
+    it('should render inky tags', () => {
+      const input = '<button href="#">Button</button>';
+      const output =
+        '<table class="button"><tr><td><table><tr><td><a href="#">Button</a></td></tr></table></td></tr></table>'; // eslint-disable-line
+      const buildContent = render._renderInky(input);
+
+      expect.assertions(1);
+      return expect(buildContent).resolves.toEqual(_.trim(output));
+    });
+  });
+});

lib/render.js

@@ -0,0 +1,22 @@
+'use strict';
+
+const Promise = require('bluebird');
+const Inky = require('inky').Inky;
+const cheerio = require('cheerio');
+
+const utils = require('./utils');
+
+const _renderInky = function(htmlContent) {
+  return new Promise(resolve => {
+    if (!utils.hasInkyCode(htmlContent)) return resolve(htmlContent);
+
+    const i = new Inky();
+    const html = cheerio.load(htmlContent, { xmlMode: true });
+    const convertedHtml = i.releaseTheKraken(html);
+    return resolve(convertedHtml);
+  });
+};
+
+module.exports = {
+  _renderInky
+};