chore(tests): conduct propper'er cleanup of project objs

ref: #947

app/project_management/tests/unit/project_milestone/test_unit_project_milestone_serializer.py

@@ -64,7 +64,7 @@ class ProjectMilestoneSerializerTestCases(
 
 
     def test_serializer_validation_no_name(self,
-        kwargs_api_create, model, model_serializer, request_user
+        kwargs_api_create, model, model_serializer, request_user, model_kwargs
     ):
         """Serializer Validation Check
 

app/tests/fixtures/model_projectmilestone.py

@@ -75,9 +75,13 @@ def kwargs_projectmilestone(django_db_blocker,
 
     yield kwargs.copy()
 
-    # with django_db_blocker.unblock():
+    with django_db_blocker.unblock():
+
+        for proj in project.projectmilestone_set.all():
+            proj.delete()
+
+        project.delete()
 
-    #     project.delete()    # milestone is cascade delete
 
 
 @pytest.fixture( scope = 'class')

app/tests/fixtures/model_projectstate.py

@@ -48,10 +48,11 @@ def kwargs_projectstate(kwargs_centurionmodel, django_db_blocker,
 
     with django_db_blocker.unblock():
 
-        try:
-            runbook.delete()
-        except models.deletion.ProtectedError:
-            pass
+        for proj in runbook.projectstate_set.all():
+            proj.delete()
+
+        runbook.delete()
+
 
 
 @pytest.fixture( scope = 'class')

app/tests/fixtures/model_projecttype.py

@@ -47,10 +47,11 @@ def kwargs_projecttype(kwargs_centurionmodel, django_db_blocker,
 
     with django_db_blocker.unblock():
 
-        try:
-            runbook.delete()
-        except models.deletion.ProtectedError:
-            pass
+        for proj in runbook.projecttype_set.all():
+            proj.delete()
+
+        runbook.delete()
+
 
 
 @pytest.fixture( scope = 'class')