@After
  public void destroy() throws IOException {
    cleanupPartition(azureCloudConfig, partitionId);
    if (cloudBlobStore != null) {
      cloudBlobStore.shutdown();
    }
    if (cloudDestination != null) {
      cloudDestination.close();
    }
  }
Constructor for {@link CloudBlobStoreIntegrationTest}.
@param isVcr true if testing for vcr. false otherwise.
ambry-cloud/src/test/java/com/github/ambry/cloud/CloudBlobStoreIntegrationTest.java