ApplicationRoles seed and domain

tests/domain/test_application_roles.py

@@ -0,0 +1,18 @@
+from atst.domain.application_roles import ApplicationRoles
+from atst.domain.permission_sets import PermissionSets
+from tests.factories import UserFactory, ApplicationFactory
+
+
+def test_create_application_role():
+    application = ApplicationFactory.create()
+    user = UserFactory.create()
+
+    permission_sets = PermissionSets.get_many([PermissionSets.EDIT_APPLICATION_TEAM])
+
+    application_role = ApplicationRoles.create(
+        application=application, user=user, permission_sets=permission_sets
+    )
+
+    assert application_role.permission_sets == permission_sets
+    assert application_role.application == application
+    assert application_role.user == user