APIResponse resp = adminApi.assignRoleToUser(email, role, user);
assertTrue(resp.statusCode == Status.SUCCESS);
//ensure role is correctly added
UserProp prop = (UserProp) adminApi.getRolesForUser(email).object;
assertTrue(Util.isRolePresent(prop.roles, role));
//3. unassign role
resp = adminApi.unassignRoleToUser(email, role, user);
assertTrue(resp.statusCode == Status.SUCCESS);