[fix] tests ++ flickr error

searx/engines/flickr.py

                         'title': photo['title'],
                         'img_src': img_src,
                         'thumbnail_src': thumbnail_src,
-                        'content': content = photo['description']['_content'],
+                        'content': photo['description']['_content'],
                         'author': photo['ownername'],
                         'template': 'images.html'})
 

tests/unit/engines/test_deezer.py

         self.assertEqual(len(results), 1)
         self.assertEqual(results[0]['title'], 'Title of track')
         self.assertEqual(results[0]['url'], 'https://www.deezer.com/track/1094042')
-        self.assertEqual(results[0]['content'], 'Artist Name • Album Title • Title of track')
+        self.assertEqual(results[0]['content'], 'Artist Name - Album Title - Title of track')
         self.assertTrue('100' in results[0]['embedded'])
 
         json = r"""

tests/unit/engines/test_flickr.py

         self.assertEqual(results[0]['url'], 'https://www.flickr.com/photos/66847915@N08/15751017054')
         self.assertTrue('o.jpg' in results[0]['img_src'])
         self.assertTrue('n.jpg' in results[0]['thumbnail_src'])
-        self.assertTrue('Owner' in results[0]['content'])
+        self.assertTrue('Owner' in results[0]['author'])
         self.assertTrue('Description' in results[0]['content'])
 
         json = r"""
         self.assertEqual(results[0]['url'], 'https://www.flickr.com/photos/66847915@N08/15751017054')
         self.assertTrue('z.jpg' in results[0]['img_src'])
         self.assertTrue('z.jpg' in results[0]['thumbnail_src'])
-        self.assertTrue('Owner' in results[0]['content'])
+        self.assertTrue('Owner' in results[0]['author'])
         self.assertTrue('Description' in results[0]['content'])
 
         json = r"""
         self.assertEqual(results[0]['url'], 'https://www.flickr.com/photos/66847915@N08/15751017054')
         self.assertTrue('o.jpg' in results[0]['img_src'])
         self.assertTrue('o.jpg' in results[0]['thumbnail_src'])
-        self.assertTrue('Owner' in results[0]['content'])
+        self.assertTrue('Owner' in results[0]['author'])
         self.assertTrue('Description' in results[0]['content'])
 
         json = r"""

tests/unit/engines/test_flickr_noapi.py

         self.assertEqual(results[0]['url'], 'https://www.flickr.com/photos/59729010@N00/14001294434')
         self.assertIn('k.jpg', results[0]['img_src'])
         self.assertIn('n.jpg', results[0]['thumbnail_src'])
-        self.assertIn('Owner', results[0]['content'])
+        self.assertIn('Owner', results[0]['author'])
 
         # no n size, only the z size
         json = """
         self.assertEqual(results[0]['url'], 'https://www.flickr.com/photos/59729010@N00/14001294434')
         self.assertIn('z.jpg', results[0]['img_src'])
         self.assertIn('z.jpg', results[0]['thumbnail_src'])
-        self.assertIn('Owner', results[0]['content'])
+        self.assertIn('Owner', results[0]['author'])
 
         # no z or n size
         json = """
         self.assertEqual(results[0]['url'], 'https://www.flickr.com/photos/59729010@N00/14001294434')
         self.assertIn('o.jpg', results[0]['img_src'])
         self.assertIn('o.jpg', results[0]['thumbnail_src'])
-        self.assertIn('Owner', results[0]['content'])
+        self.assertIn('Owner', results[0]['author'])
 
         # no image test
         json = """

tests/unit/engines/test_kickass.py

         self.assertEqual(len(results), 1)
         self.assertEqual(results[0]['title'], 'This should be the title')
         self.assertEqual(results[0]['url'], 'https://kickass.cd/url.html')
-        self.assertEqual(results[0]['content'], 'Posted by riri in Other > Unsorted')
+        self.assertEqual(results[0]['content'], 'Posted by riri in Other > Unsorted')
         self.assertEqual(results[0]['seed'], 10)
         self.assertEqual(results[0]['leech'], 1)
         self.assertEqual(results[0]['filesize'], 449)

tests/unit/engines/test_searchcode_doc.py

         self.assertEqual(len(results), 1)
         self.assertEqual(results[0]['title'], '[Type] Namespace test')
         self.assertEqual(results[0]['url'], 'http://url')
-        self.assertIn('Synopsis', results[0]['content'])
-        self.assertIn('Type', results[0]['content'])
-        self.assertIn('test', results[0]['content'])
         self.assertIn('Description', results[0]['content'])
 
         json = r"""

tests/unit/engines/test_spotify.py

         self.assertEqual(len(results), 1)
         self.assertEqual(results[0]['title'], 'Title of track')
         self.assertEqual(results[0]['url'], 'https://open.spotify.com/track/2GzvFiedqW8hgqUpWcASZa')
-        self.assertEqual(results[0]['content'], 'Artist Name • Album Title • Title of track')
+        self.assertEqual(results[0]['content'], 'Artist Name - Album Title - Title of track')
         self.assertIn('1000', results[0]['embedded'])
 
         json = """