### Question:
CellStsUtils { public static String getIssuerName(String cellName, String namespace) { if (StringUtils.isEmpty(namespace)) { namespace = Constants.DEFAULT_NAMESPACE; } if (cellName.equals(Constants.COMPOSITE_CELL_NAME)) { return new StringBuilder(cellName).append(Constants.STS_SERVICE).append(".") .append(namespace).toString(); } else { return new StringBuilder(cellName).append(Constants.STS_SERVICE).append(".") .append(namespace).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 testGetIssuerName() throws Exception { Assert.assertEquals(CellStsUtils.getIssuerName("hr", "ns1"), new StringBuilder("hr") .append(Constants.STS_SERVICE).append(".").append("ns1").toString()); }