@Test(groups = "unit")
public void resolveGlobalSessionTokenReturnsEmptyStringOnEmptyCache() {

    SessionContainer sessionContainer = new SessionContainer("127.0.0.1");
    RxDocumentServiceRequest request = RxDocumentServiceRequest.create(OperationType.Read, ResourceType.Document,
            "dbs/db1/colls/collName/docs/doc1", new HashMap<>());
    assertThat(StringUtils.EMPTY).isEqualTo(sessionContainer.resolveGlobalSessionToken(request));
}