fixed tests

pytube/cipher.py

@@ -28,18 +28,19 @@ logger = logging.getLogger(__name__)
 
 
 def get_initial_function_name(js):
-    """Extract the name of the function responsible for computing the
-    signature.
+    """Extract the name of the function responsible for computing the signature.
 
     :param str js:
         The contents of the base.js asset file.
 
     """
     # c&&d.set("signature", EE(c));
-    pattern = (
-        r'\bc\s*&&\s*d\.set\([^,]+\s*,'
-        r'\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('
-    )
+    pattern = [
+        r'yt\.akamaized\.net/\)\s*\|\|\s*'
+        r'.*?\s*c\s*&&\s*d\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
+        r'\.sig\|\|(?P<sig>[a-zA-Z0-9$]+)\(',
+        r'\bc\s*&&\s*d\.set\([^,]+\s*,\s*(?P<sig>[a-zA-Z0-9$]+)\(',
+    ]
     logger.debug('finding initial function name')
     return regex_search(pattern, js, group=1)