### Question:
CellStsUtils { public static String getGatewayIssuer(String cellName) { String cellNamespace = CellStsUtils.resolveSystemVariable(Constants.CELL_NAMESPACE); if (StringUtils.isEmpty(cellNamespace)) { return new StringBuilder(cellName).append("--gateway").toString(); } if (StringUtils.isEmpty(cellName)) { return ""; } return new StringBuilder(cellName).append("--gateway."). append(cellNamespace).toString(); }  static String getMyCellName(); static String getCellImageName(); static String getCellVersion(); static boolean isRequestToMicroGateway(CellStsRequest cellStsRequest); static boolean isWorkloadExternalToCellery(String destinationWorkloadName); static String getPrettyPrintJson(Map<String, String> attributes); static String getIssuerName(String cellName, String namespace); static String getGatewayIssuer(String cellName); static String getConfigFilePath(); static String getUnsecuredPathsConfigPath(); static void buildCellStsConfiguration(); static void readUnsecuredContexts(); static boolean isRunningInDebugMode(); static String resolveSystemVariable(String variableName); static boolean isCompositeSTS(); static String extractJwtFromAuthzHeader(String authzHeader); static String getAuthorizationHeaderValue(Map<String, String> requestHeaders); static String getNamespaceFromAddress(String address);  }### Answer:
@Test public void testGetGatewayIssuer() throws Exception { Assert.assertEquals(CellStsUtils.getGatewayIssuer("hr"), "hr--gateway"); }