feat: remove mock from test dependencies.

Because mock can be replace by unittest.mock

tests/client/test_firewall.py

@@ -1,7 +1,7 @@
 import io
 from socket import AF_INET, AF_INET6
 
-from mock import Mock, patch, call
+from unittest.mock import Mock, patch, call
 import sshuttle.firewall
 
 

tests/client/test_helpers.py

@@ -3,7 +3,7 @@ import socket
 from socket import AF_INET, AF_INET6
 import errno
 
-from mock import patch, call
+from unittest.mock import patch, call
 import sshuttle.helpers
 
 

tests/client/test_methods_nat.py

@@ -3,7 +3,7 @@ from socket import AF_INET, AF_INET6
 import struct
 
 import pytest
-from mock import Mock, patch, call
+from unittest.mock import Mock, patch, call
 from sshuttle.helpers import Fatal
 from sshuttle.methods import get_method
 

tests/client/test_methods_pf.py

@@ -2,7 +2,7 @@ import socket
 from socket import AF_INET, AF_INET6
 
 import pytest
-from mock import Mock, patch, call, ANY
+from unittest.mock import Mock, patch, call, ANY
 from sshuttle.methods import get_method
 from sshuttle.helpers import Fatal, get_env
 from sshuttle.methods.pf import FreeBsd, Darwin, OpenBsd

tests/client/test_methods_tproxy.py

@@ -1,7 +1,7 @@
 import socket
 from socket import AF_INET, AF_INET6
 
-from mock import Mock, patch, call
+from unittest.mock import Mock, patch, call
 
 from sshuttle.methods import get_method
 

tests/client/test_sdnotify.py

@@ -1,6 +1,6 @@
 import socket
 
-from mock import Mock, patch, call
+from unittest.mock import Mock, patch, call
 
 import sshuttle.sdnotify
 

tests/server/test_server.py

@@ -1,7 +1,7 @@
 import io
 import socket
 
-from mock import patch, Mock
+from unittest.mock import patch, Mock
 
 import sshuttle.server