in src/it/java/com/epam/digital/data/platform/integration/idm/client/KeycloakAuthRestClientIT.java [159:164]
void testGetUserByUsername() {
var username = "username";
var result = idmService.getUserByUserName(username);
assertThat(result.size()).isOne();
assertThat(result.get(0).getId()).isEqualTo("testId");
}