Reorganize unit test locations under tests/unittests (#1126)

This attempts to standardize unit test file location under test/unittests/
such that any source file located at cloudinit/path/to/file.py may have a
corresponding unit test file at test/unittests/path/to/test_file.py.

Noteworthy Comments:
====================
Four different duplicate test files existed:
test_{gpg,util,cc_mounts,cc_resolv_conf}.py
Each of these duplicate file pairs has been merged together. This is a
break in git history for these files.

The test suite appears to have a dependency on test order. Changing test
order causes some tests to fail. This should be rectified, but for now
some tests have been modified in
tests/unittests/config/test_set_passwords.py.

A helper class name starts with "Test" which causes pytest to try
executing it as a test case, which then throws warnings "due to Class
having __init__()".  Silence by changing the name of the class.

# helpers.py is imported in many test files, import paths change
cloudinit/tests/helpers.py -> tests/unittests/helpers.py

# Move directories:
cloudinit/distros/tests -> tests/unittests/distros
cloudinit/cmd/devel/tests -> tests/unittests/cmd/devel
cloudinit/cmd/tests -> tests/unittests/cmd/
cloudinit/sources/helpers/tests -> tests/unittests/sources/helpers
cloudinit/sources/tests -> tests/unittests/sources
cloudinit/net/tests -> tests/unittests/net
cloudinit/config/tests -> tests/unittests/config
cloudinit/analyze/tests/ -> tests/unittests/analyze/

# Standardize tests already in tests/unittests/
test_datasource -> sources
test_distros -> distros
test_vmware -> sources/vmware
test_handler -> config        # this contains cloudconfig module tests
test_runs -> runs

1 files changed, 0 insertions, 60 deletions

diff --git a/cloudinit/tests/test_features.py b/cloudinit/tests/test_features.py
deleted file mode 100644
index d7a7226d..00000000
--- a/cloudinit/tests/test_features.py
+++ /dev/null
@@ -1,60 +0,0 @@
-# This file is part of cloud-init. See LICENSE file for license information.
-# pylint: disable=no-member,no-name-in-module
-"""
-This file is for testing the feature flag functionality itself,
-NOT for testing any individual feature flag
-"""
-import pytest
-import sys
-from pathlib import Path
-
-import cloudinit
-
-
-@pytest.yield_fixture()
-def create_override(request):
-    """
-    Create a feature overrides file and do some module wizardry to make
-    it seem like we're importing the features file for the first time.
-
-    After creating the override file with the values passed by the test,
-    we need to reload cloudinit.features
-    to get all of the current features (including the overridden ones).
-    Once the test is complete, we remove the file we created and set
-    features and feature_overrides modules to how they were before
-    the test started
-    """
-    override_path = Path(cloudinit.__file__).parent / 'feature_overrides.py'
-    if override_path.exists():
-        raise Exception("feature_overrides.py unexpectedly exists! "
-                        "Remove it to run this test.")
-    with override_path.open('w') as f:
-        for key, value in request.param.items():
-            f.write('{} = {}\n'.format(key, value))
-
-    sys.modules.pop('cloudinit.features', None)
-
-    yield
-
-    override_path.unlink()
-    sys.modules.pop('cloudinit.feature_overrides', None)
-
-
-class TestFeatures:
-    def test_feature_without_override(self):
-        from cloudinit.features import ERROR_ON_USER_DATA_FAILURE
-        assert ERROR_ON_USER_DATA_FAILURE is True
-
-    @pytest.mark.parametrize('create_override',
-                             [{'ERROR_ON_USER_DATA_FAILURE': False}],
-                             indirect=True)
-    def test_feature_with_override(self, create_override):
-        from cloudinit.features import ERROR_ON_USER_DATA_FAILURE
-        assert ERROR_ON_USER_DATA_FAILURE is False
-
-    @pytest.mark.parametrize('create_override',
-                             [{'SPAM': True}],
-                             indirect=True)
-    def test_feature_only_in_override(self, create_override):
-        from cloudinit.features import SPAM
-        assert SPAM is True