Fixed tests so they actually clean up after themselves.

Author: Caid11

tests/test_pssh_client.py

@@ -362,6 +362,7 @@ def test_pssh_copy_file(self):
                         msg="SFTP copy failed")
         for filepath in [local_filename, remote_filename]:
             os.unlink(filepath)
+        shutil.rmtree(remote_test_dir)
         del client
 
     def test_pssh_client_directory(self):
@@ -472,6 +473,7 @@ def test_pssh_copy_file_to_local(self):
                         msg="SFTP copy failed")
         for filepath in [remote_filename, local_filename]:
             os.unlink(filepath)
+        shutil.rmtree(local_test_dir)
         del client
         server.join()