Minor refactorings to move some utils code around and remove unneeded code.

Author: mark-adams

tests/test_algorithms.py

@@ -17,9 +17,6 @@
 
 
 class TestAlgorithms(unittest.TestCase):
-    def setUp(self):  # noqa
-        pass
-
     def test_algorithm_should_throw_exception_if_prepare_key_not_impl(self):
         algo = Algorithm()
 

tests/test_api.py

@@ -19,7 +19,7 @@
 import pytest
 
 from .compat import string_types, text_type, unittest
-from .utils import ensure_bytes
+from .utils import ensure_bytes, utc_timestamp
 
 try:
     from cryptography.hazmat.backends import default_backend
@@ -32,10 +32,6 @@
     has_crypto = False
 
 
-def utc_timestamp():
-    return timegm(datetime.utcnow().utctimetuple())
-
-
 class TestAPI(unittest.TestCase):
 
     def setUp(self):  # noqa

tests/utils.py

@@ -1,5 +1,8 @@
 import os
 
+from calendar import timegm
+from datetime import datetime
+
 from .compat import text_type
 
 
@@ -17,6 +20,10 @@ def ensure_unicode(key):
     return key
 
 
+def utc_timestamp():
+    return timegm(datetime.utcnow().utctimetuple())
+
+
 def key_path(key_name):
     return os.path.join(os.path.dirname(os.path.realpath(__file__)),
                         'keys', key_name)