def test_parse_html_content(self):
     html = """
     <!DOCTYPE html>
     <html>
         <title>Test</title>
         <link rel="stylesheet" href="/assets/v2/css/app.css">
         <link rel="stylesheet" href="/assets/v2/css/app2.css">
         <link rel="apple-touch-icon" sizes="152x152" href="/assets/v2/apple-icon-152x152.png">
         <link rel="icon" type="image/png" sizes="192x192" href="/assets/v2/android-icon-192x192.png">
         <link href="/assets/v2/favicon.ico" rel="shortcut icon">
         <link href="/assets/v2/apple-touch-icon.png" rel="apple-touch-icon">
     <body>
         <a href='test1'/>
         <a href='test2'/>
         <div class="col-lg-6">
            <img src="/assets/v2/images/screen-yoyo-apps-2x.png" class="hero-img"/>
         </div>
         <script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2.js"></script>
     </body>
     </html>
     """
     data = {
         'css_links': {
             'http://test.com/assets/v2/css/app2.css',
             'http://test.com/assets/v2/css/app.css'
         },
         'js_links': {'http://js.hsforms.net/forms/v2.js'},
         'img_links':
         {'http://test.com/assets/v2/images/screen-yoyo-apps-2x.png'},
         'icon_links': {
             'http://test.com/assets/v2/apple-touch-icon.png',
             'http://test.com/assets/v2/android-icon-192x192.png',
             'http://test.com/assets/v2/favicon.ico',
             'http://test.com/assets/v2/apple-icon-152x152.png'
         }
     }
     crawler = Crawler('http://test.com')
     result = crawler.parse_html_content(html)
     self.assertSetEqual(result['css_links'], data['css_links'])
     self.assertSetEqual(result['js_links'], data['js_links'])
     self.assertSetEqual(result['img_links'], data['img_links'])
     self.assertSetEqual(result['icon_links'], data['icon_links'])
 def test_parse_empty_html_content(self):
     html = ""
     data = {}
     crawler = Crawler('http://test.com')
     result = crawler.parse_html_content(html)
     self.assertDictEqual(result, data)