[youtube] Move swfinterp into its own file

test/test_youtube_signature.py

@@ -45,6 +45,12 @@ _TESTS = [
         u'2ACFC7A61CA478CD21425E5A57EBD73DDC78E22A.2094302436B2D377D14A3BBA23022D023B8BC25AA',
         u'A52CB8B320D22032ABB3A41D773D2B6342034902.A22E87CDD37DBE75A5E52412DC874AC16A7CFCA2',
     ),
+    (
+        u'http://s.ytimg.com/yts/swfbin/player-vfl5vIhK2/watch_as3.swf',
+        u'swf',
+        86,
+        u'23456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!?#$%&\'()*+,-./:;<=>"'
+    ),
 ]
 
 
@@ -57,12 +63,12 @@ class TestSignature(unittest.TestCase):
 
 
 def make_tfunc(url, stype, sig_input, expected_sig):
-    basename = url.rpartition('/')[2]
-    m = re.match(r'.*-([a-zA-Z0-9_-]+)\.[a-z]+$', basename)
-    assert m, '%r should follow URL format' % basename
+    m = re.match(r'.*-([a-zA-Z0-9_-]+)(?:/watch_as3)?\.[a-z]+$', url)
+    assert m, '%r should follow URL format' % url
     test_id = m.group(1)
 
     def test_func(self):
+        basename = 'player-%s.%s' % (test_id, stype)
         fn = os.path.join(self.TESTDATA_DIR, basename)
 
         if not os.path.exists(fn):