Make python3-mock dependency optional

https://fedoraproject.org/wiki/Changes/RemovePythonMockUsage

Prefer using unittest.mock to a standalone package. The separate
packages should only really be needed on Python 2.7 these days.

The test requirements file is updated to only require mock on old
Python, and the dependency is removed from setup.py to avoid issues
there.

Relates: https://src.fedoraproject.org/rpms/pungi/pull-request/9

Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>

setup.py

@@ -62,5 +62,5 @@ setup(
         "dogpile.cache",
     ],
     extras_require={':python_version=="2.7"': ["enum34", "lockfile"]},
-    tests_require=["mock", "pytest", "pytest-cov"],
+    tests_require=["pytest", "pytest-cov"],
 )

test-requirements.txt

@@ -1,4 +1,4 @@
-mock
+mock; python_version < '3.3'
 parameterized
 pytest
 pytest-cov

tests/helpers.py

@@ -7,7 +7,10 @@ import shutil
 import tempfile
 from collections import defaultdict
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 from kobo.rpmlib import parse_nvr
 

tests/test_arch.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import unittest
 
 from pungi.arch import (

tests/test_arguments.py

@@ -1,4 +1,7 @@
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_buildinstall.py

@@ -6,7 +6,10 @@ try:
 except ImportError:
     import unittest
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 from copy import copy
 from six.moves import StringIO

tests/test_checks.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_compose.py

@@ -1,7 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import logging
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_config.py

@@ -7,7 +7,11 @@ except ImportError:
     import unittest
 
 import six
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 from pungi import checks
 from tests.helpers import load_config, PKGSET_REPOS

tests/test_config_validate_script.py

@@ -1,7 +1,9 @@
 # -*- coding: utf-8 -*-
 
-
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 import six
 

tests/test_createiso_phase.py

@@ -2,7 +2,11 @@
 
 
 import logging
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 
 import os

tests/test_createiso_script.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 from parameterized import parameterized
 
 import os

tests/test_createrepophase.py

@@ -8,7 +8,10 @@ except ImportError:
 import glob
 import os
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 
 from pungi.module_util import Modulemd

tests/test_extra_files_phase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 from productmd.extra_files import ExtraFiles

tests/test_extra_isos_phase.py

@@ -1,7 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import logging
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 
 import os

tests/test_gather_method_deps.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 from pungi.phases.gather.methods import method_deps as deps
 from tests import helpers

tests/test_gather_method_hybrid.py

@@ -2,7 +2,11 @@
 
 from collections import namedtuple
 import copy
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 import six

tests/test_gather_method_nodeps.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 import six

tests/test_gather_phase.py

@@ -4,7 +4,10 @@ import copy
 import json
 import os
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_gather_source_module.py

@@ -5,7 +5,10 @@ try:
 except ImportError:
     import unittest
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 
 from pungi.phases.gather.sources.source_module import GatherSourceModule

tests/test_image_container_phase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 

tests/test_imagebuildphase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import six
 

tests/test_imagechecksumphase.py

@@ -4,7 +4,10 @@ try:
     import unittest2 as unittest
 except ImportError:
     import unittest
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 import tempfile

tests/test_initphase.py

@@ -5,7 +5,10 @@ try:
     import unittest2 as unittest
 except ImportError:
     import unittest
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import six
 

tests/test_iso_wrapper.py

@@ -1,7 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import itertools
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 import six
 

tests/test_koji_wrapper.py

@@ -1,7 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import json
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_linker.py

@@ -1,7 +1,10 @@
 # -*- coding: utf-8 -*-
 
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import errno
 import os
 import stat

tests/test_liveimagesphase.py

@@ -1,7 +1,9 @@
 # -*- coding: utf-8 -*-
 
-
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import six
 

tests/test_livemediaphase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 

tests/test_media_split.py

@@ -4,7 +4,10 @@ try:
     import unittest2 as unittest
 except ImportError:
     import unittest
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 from pungi import media_split
 

tests/test_metadata.py

@@ -1,4 +1,7 @@
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 import six

tests/test_notifier.py

@@ -2,7 +2,11 @@
 
 from datetime import datetime
 import json
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_osbs_phase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import json
 
 import copy

tests/test_osbuild_phase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 import shutil

tests/test_ostree_installer_phase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 

tests/test_ostree_phase.py

@@ -2,7 +2,11 @@
 
 
 import json
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 

tests/test_ostree_script.py

@@ -4,7 +4,10 @@
 import json
 import os
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 import yaml
 

tests/test_ostree_utils.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 import os
 

tests/test_patch_iso.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 try:

tests/test_phase_base.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_pkgset_common.py

@@ -2,7 +2,10 @@
 
 import os
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 
 from pungi.module_util import Modulemd

tests/test_pkgset_pkgsets.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 import six
 

tests/test_pkgset_source_koji.py

@@ -1,7 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import json
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 import re
 import six

tests/test_repoclosure_phase.py

@@ -6,7 +6,10 @@ try:
 except ImportError:
     import unittest
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import six
 
 import pungi.phases.repoclosure as repoclosure_phase

tests/test_runroot.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 from pungi.runroot import Runroot

tests/test_scm.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 
 try:
     import unittest2 as unittest

tests/test_test_phase.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 import pungi.phases.test as test_phase

tests/test_unified_isos.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
-import mock
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 import shutil
 import six

tests/test_util.py

@@ -1,7 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import argparse
-import mock
+
+try:
+    from unittest import mock
+except ImportError:
+    import mock
 import os
 
 try: