refactor(itam): Model Functional Test Suite re-written to Pytest for model OperatingSystem

ref: #925 #922

app/itam/tests/functional/operating_system/test_functional_operating_system_model.py

@@ -0,0 +1,28 @@
+import pytest
+
+from core.tests.functional.centurion_abstract.test_functional_centurion_abstract_model import (
+    CenturionAbstractModelInheritedCases
+)
+
+
+
+@pytest.mark.model_device
+class OperatingSystemModelTestCases(
+    CenturionAbstractModelInheritedCases
+):
+    pass
+
+
+
+class OperatingSystemModelInheritedCases(
+    OperatingSystemModelTestCases,
+):
+    pass
+
+
+
+@pytest.mark.module_itam
+class OperatingSystemModelPyTest(
+    OperatingSystemModelTestCases,
+):
+    pass