Add tests for HTML to React

In the tests, use the parser to convert HTML string to React
elements and then use ReactDOMServer to render it back to HTML
string.

Add `react-dom` to devDependencies.

Author: remarkablemark

package.json

@@ -20,7 +20,8 @@
   },
   "devDependencies": {
     "mocha": "^3.0.2",
-    "react": "^15.3.0"
+    "react": "^15.3.0",
+    "react-dom": "^15.3.0"
   },
   "peerDependencies": {
     "react": "^0.13 || ^15.0"

test/html-to-react.js

@@ -0,0 +1,48 @@
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+var assert = require('assert');
+var React = require('react');
+var ReactDOMServer = require('react-dom/server');
+var Parser = require('../');
+var data = require('./data');
+
+/**
+ * Render a React element to static HTML markup.
+ *
+ * @param  {ReactElement} reactElement - The React element.
+ * @return {String}                    - The static HTML markup.
+ */
+function render(reactElement) {
+    return ReactDOMServer.renderToStaticMarkup(reactElement);
+}
+
+/**
+ * Tests for `htmlToReact`.
+ */
+describe('html-to-react parser', function() {
+
+    it('converts single HTML element to React', function() {
+        var html = data.html.single;
+        var reactElement = Parser(html);
+        assert.equal(render(reactElement), html);
+    });
+
+    it('converts multiple HTML elements to React', function() {
+        var html = data.html.multiple;
+        var reactElements = Parser(html);
+        assert.equal(
+            render(React.createElement('div', {}, reactElements)),
+            '<div>' + html + '</div>'
+        );
+    });
+
+    it('converts complex HTML to React', function() {
+        var html = data.html.complex;
+        var reactElement = Parser(html);
+        assert.equal(render(reactElement), html);
+    });
+
+});