refactor(project_management): Model Functional Test Suite re-written to Pytest for model ProjectMilestone

ref: #938 #934

app/project_management/tests/functional/project_milestone/test_functional_project_milestone_model.py

@@ -0,0 +1,28 @@
+import pytest
+
+from core.tests.functional.centurion_abstract.test_functional_centurion_abstract_model import (
+    CenturionAbstractModelInheritedCases
+)
+
+
+
+@pytest.mark.model_project
+class ProjectModelTestCases(
+    CenturionAbstractModelInheritedCases
+):
+    pass
+
+
+
+class ProjectModelInheritedCases(
+    ProjectModelTestCases,
+):
+    pass
+
+
+
+@pytest.mark.module_project_management
+class ProjectModelPyTest(
+    ProjectModelTestCases,
+):
+    pass