Move modules and module_utils unit tests to correct place (#81)

* Move modules and module_utils unit tests to correct place.

* Update ignore.txt

* Fix imports.

* Fix typos.

* Fix more typos.

tests/unit/plugins/modules/cloud/xenserver/conftest.py

@@ -0,0 +1,75 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright: (c) 2019, Bojan Vitnik <bvitnik@mainstream.rs>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+import sys
+import importlib
+import pytest
+
+from .FakeAnsibleModule import FakeAnsibleModule
+
+
+@pytest.fixture
+def fake_ansible_module(request):
+    """Returns fake AnsibleModule with fake module params."""
+    if hasattr(request, 'param'):
+        return FakeAnsibleModule(request.param)
+    else:
+        params = {
+            "hostname": "somehost",
+            "username": "someuser",
+            "password": "somepwd",
+            "validate_certs": True,
+        }
+
+        return FakeAnsibleModule(params)
+
+
+@pytest.fixture(autouse=True)
+def XenAPI():
+    """Imports and returns fake XenAPI module."""
+
+    # Import of fake XenAPI module is wrapped by fixture so that it does not
+    # affect other unit tests which could potentialy also use XenAPI module.
+
+    # First we use importlib.import_module() to import the module and assign
+    # it to a local symbol.
+    fake_xenapi = importlib.import_module('ansible_collections.community.general.tests.unit.plugins.modules.cloud.xenserver.FakeXenAPI')
+
+    # Now we populate Python module cache with imported fake module using the
+    # original module name (XenAPI). That way, any 'import XenAPI' statement
+    # will just load already imported fake module from the cache.
+    sys.modules['XenAPI'] = fake_xenapi
+
+    return fake_xenapi
+
+
+@pytest.fixture
+def xenserver_guest_info(XenAPI):
+    """Imports and returns xenserver_guest_info module."""
+
+    # Since we are wrapping fake XenAPI module inside a fixture, all modules
+    # that depend on it have to be imported inside a test function. To make
+    # this easier to handle and remove some code repetition, we wrap the import
+    # of xenserver_guest_info module with a fixture.
+    from ansible_collections.community.general.plugins.modules.cloud.xenserver import xenserver_guest_info
+
+    return xenserver_guest_info
+
+
+@pytest.fixture
+def xenserver_guest_powerstate(XenAPI):
+    """Imports and returns xenserver_guest_powerstate module."""
+
+    # Since we are wrapping fake XenAPI module inside a fixture, all modules
+    # that depend on it have to be imported inside a test function. To make
+    # this easier to handle and remove some code repetition, we wrap the import
+    # of xenserver_guest_powerstate module with a fixture.
+    from ansible_collections.community.general.plugins.modules.cloud.xenserver import xenserver_guest_powerstate
+
+    return xenserver_guest_powerstate