Remove PY2 specific imports and tests

* future was needed for some python 2 specific tests
* use mock from unittest.mock instead of the 3rd party mock library

pymemcache/test/test_client.py

@@ -12,8 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from builtins import bytes as newbytes
-
 import collections
 import errno
 import functools
@@ -162,22 +160,6 @@ def test_set_success(self):
         result = client.set(b'key', b'value', noreply=False, flags=0x00000030)
         assert result is True
 
-    def test_set_future(self):
-        client = self.make_client([b'STORED\r\n'])
-        result = client.set(newbytes(b'key'), newbytes(b'value'), noreply=False)
-        assert result is True
-
-        # unit test for encoding passed in __init__()
-        client = self.make_client([b'STORED\r\n'], encoding='utf-8')
-        result = client.set(newbytes(b'key'), newbytes(b'value'), noreply=False)
-        assert result is True
-
-        # unit test for set operation with parameter flags
-        client = self.make_client([b'STORED\r\n'], encoding='utf-8')
-        result = client.set(newbytes(b'key'), newbytes(b'value'), noreply=False,
-                            flags=0x00000030)
-        assert result is True
-
     def test_set_unicode_key(self):
         client = self.make_client([b''])
 

pymemcache/test/test_integration.py

@@ -12,8 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from builtins import bytes as newbytes
-
 from collections import defaultdict
 import json
 import pytest
@@ -60,18 +58,6 @@ def test_get_set(client_class, host, port, socket_module):
     get_set_helper(client, key, value, key2, value2)
 
 
-@pytest.mark.integration()
-def test_get_set_newbytes(client_class, host, port, socket_module):
-    client = client_class((host, port), socket_module=socket_module)
-    client.flush_all()
-
-    key = newbytes(b'key3')
-    value = b'value3'
-    key2 = newbytes(b'key4')
-    value2 = b'value4'
-    get_set_helper(client, key, value, key2, value2)
-
-
 @pytest.mark.integration()
 def test_get_set_unicode_key(client_class, host, port, socket_module):
     client = client_class((host, port), socket_module=socket_module,

test-requirements.txt

@@ -1,5 +1,3 @@
-future
-mock
 pytest
 pytest-cov
 gevent==20.9.0; "PyPy" not in platform_python_implementation