Filter deleted environment roles from top-level domain method.

tests/domain/test_environment_roles.py

@@ -14,3 +14,13 @@ def test_get_for_application_and_user():
     assert len(roles) == 1
     assert roles[0].environment == env1
     assert roles[0].user == user
+
+
+def test_get_for_application_and_user_does_not_return_deleted():
+    user = UserFactory.create()
+    application = ApplicationFactory.create()
+    env1 = EnvironmentFactory.create(application=application)
+    EnvironmentRoleFactory.create(user=user, environment=env1, deleted=True)
+
+    roles = EnvironmentRoles.get_for_application_and_user(user.id, application.id)
+    assert len(roles) == 0