Fixed some string conversions

Author: dallerbarn

tests/test_1_jwt.py

@@ -40,8 +40,6 @@ def test_unpack_str():
                "http://example.com/is_root": True}
     jwt = _jwt.pack(parts=[payload, ""])
 
-    jwt = jwt.decode('utf-8')
-
     _jwt2 = JWT().unpack(jwt)
     assert _jwt2
     out_payload = _jwt2.payload()

tests/test_3_jws.py

@@ -368,9 +368,9 @@ def test_signer_protected_headers():
 
     exp_protected = protected.copy()
     exp_protected['alg'] = 'ES256'
-    enc_header, enc_payload, sig = _jwt.split(b'.')
-    assert json.loads(b64d(enc_header).decode("utf-8")) == exp_protected
-    assert b64d(enc_payload).decode("utf-8") == payload
+    enc_header, enc_payload, sig = _jwt.split('.')
+    assert json.loads(b64d(enc_header.encode("utf-8")).decode("utf-8")) == exp_protected
+    assert b64d(enc_payload.encode("utf-8")).decode("utf-8") == payload
 
     _rj = JWS()
     info = _rj.verify_compact(_jwt, keys)
@@ -384,7 +384,7 @@ def test_verify_protected_headers():
     protected = dict(header1=u"header1 is protected",
         header2="header2 is protected too", a=1)
     _jwt = _jws.sign_compact(keys, protected=protected)
-    protectedHeader, enc_payload, sig = _jwt.split(b".")
+    protectedHeader, enc_payload, sig = _jwt.split(".")
     data = dict(payload=enc_payload, signatures=[
         dict(
             header=dict(alg=u"ES256", jwk=_key.serialize()),