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, 25 deletions

diff --git a/tests/unittests/test_distros/test_dragonflybsd.py b/tests/unittests/test_distros/test_dragonflybsd.py
deleted file mode 100644
index df2c00f4..00000000
--- a/tests/unittests/test_distros/test_dragonflybsd.py
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env python3
-
-
-import cloudinit.util
-from cloudinit.tests.helpers import mock
-
-
-def test_find_dragonflybsd_part():
-    assert cloudinit.util.find_dragonflybsd_part("/dev/vbd0s3") == "vbd0s3"
-
-
-@mock.patch("cloudinit.util.is_DragonFlyBSD")
-@mock.patch("cloudinit.subp.subp")
-def test_parse_mount(mock_subp, m_is_DragonFlyBSD):
-    mount_out = """
-vbd0s3 on / (hammer2, local)
-devfs on /dev (devfs, nosymfollow, local)
-/dev/vbd0s0a on /boot (ufs, local)
-procfs on /proc (procfs, local)
-tmpfs on /var/run/shm (tmpfs, local)
-"""
-
-    mock_subp.return_value = (mount_out, "")
-    m_is_DragonFlyBSD.return_value = True
-    assert cloudinit.util.parse_mount("/") == ("vbd0s3", "hammer2", "/")