@After
  public void destroy() throws IOException {
    if (azureDest != null) {
      azureDest.close();
    }
  }
@return an {@link AzureCloudDestination} instance built from the supplied properties.
@param verProps the {@link VerifiableProperties} to use.
ambry-cloud/src/test/java/com/github/ambry/cloud/azure/AzureIntegrationTest.java