public static void CopyTestData(string srcContainer, string srcBlob, string destContainer, string destBlob = null)
        {
            ServiceManagementCmdletTestHelper vmPowershellCmdlets = new ServiceManagementCmdletTestHelper();
            Process          currentProcess = Process.GetCurrentProcess();
            StringDictionary environment    = currentProcess.StartInfo.EnvironmentVariables;

            string storageAccount    = environment[CredentialHelper.StorageAccountVariable];
            string storageAccountKey = environment[CredentialHelper.StorageAccountKeyVariable];

            // Create a container
            try
            {
                vmPowershellCmdlets.RunPSScript(String.Format("{0}-{1} -Name {2}",
                                                              VerbsCommon.Get, "AzureStorageContainer", destContainer));
            }
            catch
            {
                // Create a container.
                vmPowershellCmdlets.RunPSScript(String.Format("{0}-{1} -Name {2}",
                                                              VerbsCommon.New, "AzureStorageContainer", destContainer));
            }

            // Make SAS Uri for the source blob.
            string srcSasUri = Utilities.GenerateSasUri(CredentialHelper.CredentialBlobUriFormat, storageAccount, storageAccountKey, srcContainer, srcBlob);

            if (string.IsNullOrEmpty(destBlob))
            {
                vmPowershellCmdlets.RunPSScript(string.Format("{0}-{1} -SrcContainer {2} -SrcBlob {3} -DestContainer {4} -Force",
                                                              VerbsLifecycle.Start, "AzureStorageBlobCopy", srcContainer, srcBlob, destContainer));
                destBlob = srcBlob;
            }
            else
            {
                vmPowershellCmdlets.RunPSScript(string.Format("{0}-{1} -SrcUri \"{2}\" -DestContainer {3} -DestBlob {4} -Force",
                                                              VerbsLifecycle.Start, "AzureStorageBlobCopy", srcSasUri, destContainer, destBlob));
            }

            for (int i = 0; i < 60; i++)
            {
                var result = vmPowershellCmdlets.CheckCopyBlobStatus(destContainer, destBlob);
                if (result.Status.ToString().Equals("Success"))
                {
                    break;
                }
                else
                {
                    System.Threading.Thread.Sleep(10 * 1000);
                }
            }
        }