Fix test problem with RDFa and duplicated properties

Author: ivanprado

tests/test_extruct.py

@@ -5,6 +5,7 @@
 import pytest
 
 import extruct
+from extruct import SYNTAXES
 from tests import get_testdata, jsonize_dict, replace_node_ref_with_node_id
 
 
@@ -16,6 +17,21 @@ def test_all(self):
         body = get_testdata('songkick', 'elysianfields.html')
         expected = json.loads(get_testdata('songkick', 'elysianfields.json').decode('UTF-8'))
         data = extruct.extract(body, base_url='http://www.songkick.com/artists/236156-elysian-fields')
+        # See test_rdfa_not_preserving_order()
+        del data['rdfa'][0]['http://ogp.me/ns#image']
+        del expected['rdfa'][0]['http://ogp.me/ns#image']
+        self.assertEqual(jsonize_dict(data), expected)
+
+    @pytest.mark.xfail
+    def test_rdfa_not_preserving_order(self):
+        # See https://github.com/scrapinghub/extruct/issues/116
+        # RDFa is not preserving ordering on duplicated properties. So this
+        # test sometimes fails for property 'http://ogp.me/ns#image'
+        body = get_testdata('songkick', 'elysianfields.html')
+        expected = json.loads(get_testdata('songkick', 'elysianfields.json').decode('UTF-8'))
+        data = extruct.extract(body,
+                               base_url='http://www.songkick.com/artists/236156-elysian-fields',
+                               syntaxes=['rdfa'])
         self.assertEqual(jsonize_dict(data), expected)
 
     def test_microdata_custom_url(self):