Merge pull request #553 from Maxqia/convert

[fix] currency_convert: make unit tests pass

searx/engines/currency_convert.py

 url = 'https://download.finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s={query}=X'
 weight = 100
 
-parser_re = re.compile(u'.*?(\d+(?:\.\d+)?) ([^.0-9].+) (in|to) ([^\.]+)\W*$', re.I)  # noqa
+parser_re = re.compile(u'.*?(\d+(?:\.\d+)?) ([^.0-9]+) (?:in|to) ([^.0-9]+)', re.I)  # noqa
 
 db = 1
 
 
 def normalize_name(name):
-    name = name.lower().replace('-', ' ')
+    name = name.lower().replace('-', ' ').rstrip('s')
     name = re.sub(' +', ' ', name)
     return unicodedata.normalize('NFKD', name).lower()
 
         # wrong query
         return params
 
-    ammount, from_currency, none, to_currency = m.groups()
+    ammount, from_currency, to_currency = m.groups()
     ammount = float(ammount)
     from_currency = name_to_iso4217(from_currency.strip())
     to_currency = name_to_iso4217(to_currency.strip())

tests/unit/engines/test_currency_convert.py

         params = currency_convert.request(query, dicto)
         self.assertNotIn('url', params)
 
-        query = '1.1.1 EUR in USD'
-        params = currency_convert.request(query, dicto)
-        self.assertNotIn('url', params)
-
-        query = '10 eur in usd'
+        query = 'convert 10 Pound Sterlings to United States Dollars'
         params = currency_convert.request(query, dicto)
         self.assertIn('url', params)
         self.assertIn('finance.yahoo.com', params['url'])
-        self.assertIn('EUR', params['url'])
+        self.assertIn('GBP', params['url'])
         self.assertIn('USD', params['url'])
 
     def test_response(self):
         dicto = defaultdict(dict)
         dicto['ammount'] = float(10)
-        dicto['from'] = "EUR"
+        dicto['from'] = "GBP"
         dicto['to'] = "USD"
-        dicto['from_name'] = "euro"
+        dicto['from_name'] = "pound sterling"
         dicto['to_name'] = "United States dollar"
         response = mock.Mock(text='a,b,c,d', search_params=dicto)
         self.assertEqual(currency_convert.response(response), [])
         results = currency_convert.response(response)
         self.assertEqual(type(results), list)
         self.assertEqual(len(results), 1)
-        self.assertEqual(results[0]['answer'], '10.0 EUR = 5.0 USD, 1 EUR (euro) = 0.5 USD (United States dollar)')
+        self.assertEqual(results[0]['answer'], '10.0 GBP = 5.0 USD, 1 GBP (pound sterling)' +
+                         ' = 0.5 USD (United States dollar)')
         now_date = datetime.now().strftime('%Y%m%d')
         self.assertEqual(results[0]['url'], 'https://finance.yahoo.com/currency/converter-results/' +
-                                            now_date + '/10.0-eur-to-usd.html')
+                                            now_date + '/10.0-gbp-to-usd.html')