});
Tenant tenant = this.tenantAggregate();
User user = this.userAggregate();
DomainRegistry.userRepository().add(user);
Role managerRole = tenant.provisionRole("Manager", "A manager role.", true);
Group group = new Group(user.tenantId(), "Managers", "A group of managers.");
DomainRegistry.groupRepository().add(group);
managerRole.assignUser(user);
managerRole.assignGroup(group, DomainRegistry.groupMemberService());
DomainRegistry.roleRepository().add(managerRole);