Raise error when a user attempts to update a disabled env role

atst/domain/environments.py

@@ -14,7 +14,7 @@ from atst.models import (
 )
 from atst.domain.environment_roles import EnvironmentRoles
 
-from .exceptions import NotFoundError
+from .exceptions import NotFoundError, DisabledError
 
 
 class Environments(object):
@@ -57,34 +57,32 @@ class Environments(object):
 
     @classmethod
     def update_env_role(cls, environment, application_role, new_role):
-        updated = False
-
         env_role = EnvironmentRoles.get_for_update(application_role.id, environment.id)
+        if env_role and (
+            env_role.status == EnvironmentRole.Status.DISABLED or env_role.deleted
+        ):
+            raise DisabledError("environment_role", env_role.id)
+
         if (
             env_role
             and env_role.role != new_role
             and env_role.status != EnvironmentRole.Status.DISABLED
         ):
             env_role.role = new_role
-            updated = True
+            db.session.add(env_role)
         elif not env_role and new_role:
             env_role = EnvironmentRoles.create(
                 application_role=application_role,
                 environment=environment,
                 role=new_role,
             )
-            updated = True
+            db.session.add(env_role)
 
         if env_role and not new_role:
             EnvironmentRoles.disable(env_role.id)
-            updated = True
 
-        if updated:
-            db.session.add(env_role)
         db.session.commit()
 
-        return updated
-
     @classmethod
     def revoke_access(cls, environment, target_user):
         EnvironmentRoles.delete(environment.id, target_user.id)

atst/domain/exceptions.py

@@ -53,3 +53,13 @@ class ClaimFailedException(Exception):
             f"Could not acquire claim for {resource.__class__.__name__} {resource.id}."
         )
         super().__init__(message)
+
+
+class DisabledError(Exception):
+    def __init__(self, resource_name, resource_id=None):
+        self.resource_name = resource_name
+        self.resource_id = resource_id
+
+    @property
+    def message(self):
+        return f"Cannot update disabled {self.resource_name} {self.resource_id}."

tests/domain/test_environments.py

@@ -4,7 +4,7 @@ from uuid import uuid4
 
 from atst.domain.environments import Environments
 from atst.domain.environment_roles import EnvironmentRoles
-from atst.domain.exceptions import NotFoundError
+from atst.domain.exceptions import NotFoundError, DisabledError
 from atst.models.environment_role import CSPRole, EnvironmentRole
 
 from tests.factories import (
@@ -28,8 +28,7 @@ def test_create_environments():
 def test_update_env_role():
     env_role = EnvironmentRoleFactory.create(role=CSPRole.BASIC_ACCESS.value)
     new_role = CSPRole.TECHNICAL_READ.value
-
-    assert Environments.update_env_role(
+    Environments.update_env_role(
         env_role.environment, env_role.application_role, new_role
     )
     assert env_role.role == new_role
@@ -37,10 +36,7 @@ def test_update_env_role():
 
 def test_update_env_role_no_access():
     env_role = EnvironmentRoleFactory.create(role=CSPRole.BASIC_ACCESS.value)
-
-    assert Environments.update_env_role(
-        env_role.environment, env_role.application_role, None
-    )
+    Environments.update_env_role(env_role.environment, env_role.application_role, None)
 
     assert not EnvironmentRoles.get(
         env_role.application_role.id, env_role.environment.id
@@ -49,20 +45,15 @@ def test_update_env_role_no_access():
     assert env_role.status == EnvironmentRole.Status.DISABLED
 
 
-def test_update_env_role_no_change():
-    env_role = EnvironmentRoleFactory.create(role=CSPRole.BASIC_ACCESS.value)
-    new_role = CSPRole.BASIC_ACCESS.value
-
-    assert not Environments.update_env_role(
-        env_role.environment, env_role.application_role, new_role
-    )
-
-
-def test_update_env_role_deleted_role():
+def test_update_env_role_disabled_role():
     env_role = EnvironmentRoleFactory.create(role=CSPRole.BASIC_ACCESS.value)
     Environments.update_env_role(env_role.environment, env_role.application_role, None)
-    assert not Environments.update_env_role(
-        env_role.environment, env_role.application_role, CSPRole.TECHNICAL_READ.value
+
+    with pytest.raises(DisabledError):
+        Environments.update_env_role(
+            env_role.environment,
+            env_role.application_role,
+            CSPRole.TECHNICAL_READ.value,
         )
     assert env_role.role is None
     assert env_role.status == EnvironmentRole.Status.DISABLED