few fixes to initial set of test

changes/2.added

@@ -0,0 +1 @@
+Add initial set of unittest.

nautobot_plugin_nornir/tests/fixtures.py

@@ -1,4 +1,5 @@
 """Fixtures for reusable test code."""
+
 from nautobot.dcim.models import Device, DeviceType, Manufacturer, Platform, LocationType, Location
 from nautobot.extras.models.roles import ContentType, Role
 from nautobot.extras.models.statuses import Status

nautobot_plugin_nornir/tests/test_credentials_env_vars.py

@@ -1,4 +1,5 @@
 """Unit Tests for NautobotORM Inventory with Environment Vars."""
+
 import os
 from unittest import mock
 from django.test import TestCase

nautobot_plugin_nornir/tests/test_credentials_nautobot_secrets.py

@@ -1,4 +1,5 @@
 """Unit Tests for NautobotORM Inventory with Nautobot Secrets Feature."""
+
 import os
 from unittest import mock
 from django.test import TestCase

nautobot_plugin_nornir/tests/test_credentials_settings_vars.py

@@ -1,4 +1,5 @@
 """Unit Tests for NautobotORM Inventory with Settings Vars."""
+
 from unittest import mock
 from django.test import TestCase
 from nornir import InitNornir