DataTransferSessionTest.cpp 59.5 KB
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/******************************************************************************
 *
 * This file is part of the Castor project.
 * See http://castor.web.cern.ch/castor
 *
 * Copyright (C) 2003  CERN
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * 
 *
 * @author Castor Dev team, castor-dev@cern.ch
 *****************************************************************************/

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#define __STDC_CONSTANT_MACROS // For using stdint macros (stdint is included
// by inttypes.h, so we shoot first)
#include <stdint.h>
#include <inttypes.h>
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#include <gtest/gtest.h>
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#include "castor/legacymsg/RmcProxyDummy.hpp"
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#include "castor/log/StringLogger.hpp"
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#include "castor/mediachanger/MediaChangerFacade.hpp"
#include "castor/mediachanger/MmcProxyDummy.hpp"
#include "castor/messages/AcsProxyDummy.hpp"
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#include "castor/messages/TapeserverProxyDummy.hpp"
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#include "castor/server/ProcessCapDummy.hpp"
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#include "castor/server/Threading.hpp"
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#include "castor/tape/tapeserver/daemon/DataTransferSession.hpp"
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#include "castor/tape/tapeserver/daemon/VolumeInfo.hpp"
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#include "castor/tape/tapeserver/system/Wrapper.hpp"
#include "castor/tape/tapeserver/file/File.hpp"
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#include "castor/tape/tapeserver/drive/FakeDrive.hpp"
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#include "common/exception/Exception.hpp"
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#include "common/make_unique.hpp"
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#include "common/utils/utils.hpp"
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#include "scheduler/Scheduler.hpp"
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//#include "smc_struct.h"
#include "catalogue/InMemoryCatalogue.hpp"
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#include "remotens/MockRemoteNS.hpp"
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#include "remotens/MockRemoteFullFS.hpp"
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//#include "scheduler/DummyScheduler.hpp"
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#include "scheduler/OStoreDB/OStoreDBFactory.hpp"
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#include "scheduler/MountType.hpp"
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//#include "nameserver/NameServer.hpp"
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#include "scheduler/testingMocks/MockRetrieveMount.hpp"
#include "scheduler/testingMocks/MockArchiveJob.hpp"
#include "scheduler/testingMocks/MockArchiveMount.hpp"
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#include <dirent.h>
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#include <fcntl.h>
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#include <stdexcept>
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#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
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#include <unistd.h>
#include <zlib.h>
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using namespace castor::tape::tapeserver;
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using namespace castor::tape::tapeserver::daemon;
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namespace unitTests {
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namespace {

/**
 * This structure is used to parameterize scheduler tests.
 */
struct DataTransferSessionTestParam {
  cta::SchedulerDatabaseFactory &dbFactory;

  DataTransferSessionTestParam(
    cta::SchedulerDatabaseFactory &dbFactory):
    dbFactory(dbFactory) {
 }
}; // struct DataTransferSessionTest

}

/**
 * The data transfer test is a parameterized test.  It takes a pair of name server
 * and scheduler database factories as a parameter.
 */
class DataTransferSessionTest: public ::testing::TestWithParam<DataTransferSessionTestParam> {
public:
  
  DataTransferSessionTest() { }
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  class FailedToGetCatalogue: public std::exception {
  public:
    const char *what() const throw() {
      return "Failed to get catalogue";
    }
  };

  class FailedToGetScheduler: public std::exception {
  public:
    const char *what() const throw() {
      return "Failed to get scheduler";
    }
  };

    virtual void SetUp() {
    using namespace cta;

    const DataTransferSessionTestParam &param = GetParam();
    m_db = param.dbFactory.create();
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    const uint64_t nbConns = 1;
    //m_catalogue = make_unique<catalogue::SchemaCreatingSqliteCatalogue>(m_tempSqliteFile.path(), nbConns);
    m_catalogue = make_unique<catalogue::InMemoryCatalogue>(nbConns);
    m_scheduler = make_unique<Scheduler>(*m_catalogue, *m_db, 5, 2*1000*1000);
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    strncpy(m_tmpDir, "/tmp/DataTransferSessionTestXXXXXX", sizeof(m_tmpDir));
    if(!mkdtemp(m_tmpDir)) {
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      const std::string errMsg = cta::utils::errnoToString(errno);
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      std::ostringstream msg;
      msg << "Failed to create directory with template"
        " /tmp/DataTransferSessionTestXXXXXX: " << errMsg;
      bzero(m_tmpDir, sizeof(m_tmpDir));
      throw cta::exception::Exception(msg.str());
    }
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    struct stat statBuf;
    bzero(&statBuf, sizeof(statBuf));
    if(stat(m_tmpDir, &statBuf)) {
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      const std::string errMsg = cta::utils::errnoToString(errno);
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      std::ostringstream msg;
      msg << "Failed to stat directory " << m_tmpDir << ": " << errMsg;
      throw cta::exception::Exception(msg.str());
    }

    std::ostringstream cmd;
    cmd << "touch " << m_tmpDir << "/hello";
    system(cmd.str().c_str());
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  }

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  virtual void TearDown() {
    m_scheduler.reset();
    m_catalogue.reset();
    m_db.reset();
    
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    // If Setup() created a temporary directory
    if(m_tmpDir) {

      // Openn the directory
      std::unique_ptr<DIR, std::function<int(DIR*)>>
        dir(opendir(m_tmpDir), closedir);
      if(NULL == dir.get()) {
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        const std::string errMsg = cta::utils::errnoToString(errno);
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        std::ostringstream msg;
        msg << "Failed to open directory " << m_tmpDir << ": " << errMsg;
        throw cta::exception::Exception(msg.str());
      }

      // Delete each of the files within the directory
      struct dirent *entry = NULL;
      while((entry = readdir(dir.get()))) {
        const std::string entryName(entry->d_name);
        if(entryName != "." && entryName != "..") {
          const std::string entryPath = std::string(m_tmpDir) + "/" + entryName;
          if(unlink(entryPath.c_str())) {
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            const std::string errMsg = cta::utils::errnoToString(errno);
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            std::ostringstream msg;
            msg << "Failed to unlink " << entryPath;
            throw cta::exception::Exception(msg.str());
          }
        }
      }

      // Delete the now empty directory
      if(rmdir(m_tmpDir)) {
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        const std::string errMsg = cta::utils::errnoToString(errno);
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        std::ostringstream msg;
        msg << "Failed to delete directory " << m_tmpDir << ": " << errMsg;
        throw cta::exception::Exception(msg.str());
      }
    }
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  }
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  cta::catalogue::Catalogue &getCatalogue() {
    cta::catalogue::Catalogue *const ptr = m_catalogue.get();
    if(NULL == ptr) {
      throw FailedToGetCatalogue();
    }
    return *ptr;
  }
    
  cta::Scheduler &getScheduler() {
    cta::Scheduler *const ptr = m_scheduler.get();
    if(NULL == ptr) {
      throw FailedToGetScheduler();
    }
    return *ptr;
  }
  
  void setupDefaultCatalogue() {
    using namespace cta;
    auto & catalogue=getCatalogue();

    const std::string mountPolicyName = "mount_group";
    const uint64_t archivePriority = 1;
    const uint64_t minArchiveRequestAge = 2;
    const uint64_t retrievePriority = 3;
    const uint64_t minRetrieveRequestAge = 4;
    const uint64_t maxDrivesAllowed = 5;
    const std::string mountPolicyComment = "create mount group";

    ASSERT_TRUE(catalogue.getMountPolicies().empty());

    catalogue.createMountPolicy(
      s_adminOnAdminHost,
      mountPolicyName,
      archivePriority,
      minArchiveRequestAge,
      retrievePriority,
      minRetrieveRequestAge,
      maxDrivesAllowed,
      mountPolicyComment);

    const std::list<common::dataStructures::MountPolicy> groups = catalogue.getMountPolicies();
    ASSERT_EQ(1, groups.size());
    const common::dataStructures::MountPolicy group = groups.front();
    ASSERT_EQ(mountPolicyName, group.name);
    ASSERT_EQ(archivePriority, group.archivePriority);
    ASSERT_EQ(minArchiveRequestAge, group.archiveMinRequestAge);
    ASSERT_EQ(retrievePriority, group.retrievePriority);
    ASSERT_EQ(minRetrieveRequestAge, group.retrieveMinRequestAge);
    ASSERT_EQ(maxDrivesAllowed, group.maxDrivesAllowed);
    ASSERT_EQ(mountPolicyComment, group.comment);

    const std::string ruleComment = "create requester mount-rule";
    cta::common::dataStructures::UserIdentity userIdentity;
    catalogue.createRequesterMountRule(s_adminOnAdminHost, mountPolicyName, s_diskInstance, s_userName, ruleComment);

    const std::list<common::dataStructures::RequesterMountRule> rules = catalogue.getRequesterMountRules();
    ASSERT_EQ(1, rules.size());

    const common::dataStructures::RequesterMountRule rule = rules.front();

    ASSERT_EQ(s_userName, rule.name);
    ASSERT_EQ(mountPolicyName, rule.mountPolicy);
    ASSERT_EQ(ruleComment, rule.comment);
    ASSERT_EQ(s_adminOnAdminHost.username, rule.creationLog.username);
    ASSERT_EQ(s_adminOnAdminHost.host, rule.creationLog.host);
    ASSERT_EQ(rule.creationLog, rule.lastModificationLog);

    common::dataStructures::StorageClass storageClass;
    storageClass.diskInstance = s_diskInstance;
    storageClass.name = s_storageClassName;
    storageClass.nbCopies = 1;
    storageClass.comment = "create storage class";
    m_catalogue->createStorageClass(s_adminOnAdminHost, storageClass);

    const uint16_t nbPartialTapes = 1;
    const std::string tapePoolComment = "Tape-pool comment";
    const bool tapePoolEncryption = false;
    ASSERT_NO_THROW(catalogue.createTapePool(s_adminOnAdminHost, s_tapePoolName,
      nbPartialTapes, tapePoolEncryption, tapePoolComment));
    const uint16_t copyNb = 1;
    const std::string archiveRouteComment = "Archive-route comment";
    catalogue.createArchiveRoute(s_adminOnAdminHost, s_diskInstance, s_storageClassName, copyNb, s_tapePoolName,
      archiveRouteComment);
  }

private:

  // Prevent copying
  DataTransferSessionTest(const DataTransferSessionTest &) = delete;

  // Prevent assignment
  DataTransferSessionTest & operator= (const DataTransferSessionTest &) = delete;

  std::unique_ptr<cta::SchedulerDatabase> m_db;
  std::unique_ptr<cta::catalogue::Catalogue> m_catalogue;
  std::unique_ptr<cta::Scheduler> m_scheduler;
  
protected:
  // Default parameters for storage classes, etc...
  const std::string s_userName = "user_name";
  const std::string s_diskInstance = "disk_instance";
  const std::string s_storageClassName = "TestStorageClass";
  const cta::common::dataStructures::SecurityIdentity s_adminOnAdminHost = { "admin1", "host1" };
  const std::string s_tapePoolName = "TestTapePool";
  const std::string s_libraryName = "TestLogicalLibrary";
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  const std::string s_vid = "TstVid"; // We really need size <= 6 characters due to tape label format.
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  //TempFile m_tempSqliteFile;
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  /**
   * Temporary directory created with mkdtemp that will be used to contain the
   * destination remote files of the tests that need to create them.
   *
   * Please note that a new temporary directory is created and deleted for each
   * test by the Setup() and TearDown() methods.
   */
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  char m_tmpDir[100];
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}; // class DataTransferSessionTest

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TEST_P(DataTransferSessionTest, DataTransferSessionGooddayRecall) {
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  // 0) Prepare the logger for everyone
  castor::log::StringLogger logger("tapeServerUnitTest");
  
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  setupDefaultCatalogue();
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  // 1) prepare the fake scheduler
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  std::string vid = s_vid;
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  // cta::MountType::Enum mountType = cta::MountType::RETRIEVE;

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  // 3) Prepare the necessary environment (logger, plus system wrapper), 
  castor::tape::System::mockWrapper mockSys;
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  mockSys.delegateToFake();
  mockSys.disableGMockCallsCounting();
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  mockSys.fake.setupForVirtualDriveSLC6();
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  //delete is unnecessary
  //pointer with ownership will be passed to the application,
  //which will do the delete 
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  mockSys.fake.m_pathToDrive["/dev/nst0"] = new castor::tape::tapeserver::drive::FakeDrive;
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  // 4) Create the scheduler
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  auto & catalogue = getCatalogue();
  auto & scheduler = getScheduler();
//  cta::catalogue::InMemoryCatalogue catalogue;
//  cta::OStoreDBWrapper<cta::objectstore::BackendVFS> db("Unittest");
//  cta::Scheduler scheduler(catalogue, db, 1, 1);
//
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  // Always use the same requester
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  const cta::common::dataStructures::SecurityIdentity requester;
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  // List to remember the path of each remote file so that the existance of the
  // files can be tested for at the end of the test
  std::list<std::string> remoteFilePaths;
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  // 5) Create the environment for the migration to happen (library + tape) 
    const std::string libraryComment = "Library comment";
  ASSERT_NO_THROW(catalogue.createLogicalLibrary(s_adminOnAdminHost, s_libraryName,
    libraryComment));
  {
    auto libraries = catalogue.getLogicalLibraries();
    ASSERT_EQ(1, libraries.size());
    ASSERT_EQ(s_libraryName, libraries.front().name);
    ASSERT_EQ(libraryComment, libraries.front().comment);
  }
  const uint64_t capacityInBytes = 12345678;
  const std::string tapeComment = "Tape comment";
  bool notDisabled = false;
  bool notFull = false;
  catalogue.createTape(s_adminOnAdminHost, s_vid, s_libraryName,
    s_tapePoolName, "", capacityInBytes, notDisabled, notFull, tapeComment);
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  // 6) Prepare files for reading by writing them to the mock system
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  {
    // Label the tape
    castor::tape::tapeFile::LabelSession ls(*mockSys.fake.m_pathToDrive["/dev/nst0"], 
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        s_vid, false);
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    mockSys.fake.m_pathToDrive["/dev/nst0"]->rewind();
    // And write to it
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    castor::tape::tapeserver::daemon::VolumeInfo volInfo;
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    volInfo.vid=s_vid;
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    castor::tape::tapeFile::WriteSession ws(*mockSys.fake.m_pathToDrive["/dev/nst0"],
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       volInfo , 0, true, false);
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    // Write a few files on the virtual tape and modify the archive name space
    // so that it is in sync
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    uint8_t data[1000];
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    size_t archiveFileSize=sizeof(data);
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    castor::tape::SCSI::Structures::zeroStruct(&data);
    for (int fseq=1; fseq <= 10 ; fseq ++) {
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      // Create a path to a remote destination file
      std::ostringstream remoteFilePath;
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      remoteFilePath << "file://" << m_tmpDir << "/test" << fseq;
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      remoteFilePaths.push_back(remoteFilePath.str());

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      // Create an archive file entry in the archive namespace
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      std::ostringstream archiveFilePath;
      archiveFilePath << "/test" << fseq;
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      cta::catalogue::TapeFileWritten tapeFileWritten;
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      // Write the file to tape
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      cta::MockArchiveMount mam(catalogue);
      std::unique_ptr<cta::ArchiveJob> ftm(new cta::MockArchiveJob(mam, catalogue));
      ftm->tapeFile.fSeq = fseq;
      ftm->archiveFile.archiveFileID = fseq;
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      castor::tape::tapeFile::WriteFile wf(&ws, *ftm, archiveFileSize);
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      tapeFileWritten.blockId = wf.getBlockId();
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      // Write the data (one block)
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      wf.write(data, archiveFileSize);
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      // Close the file
      wf.close();
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      // Create file entry in the archive namespace
      tapeFileWritten.archiveFileId=fseq;
      tapeFileWritten.checksumType="ADLER32";
      tapeFileWritten.checksumValue=cta::utils::getAdler32String(data, archiveFileSize);
      tapeFileWritten.vid=volInfo.vid;
      tapeFileWritten.size=archiveFileSize;
      tapeFileWritten.fSeq=fseq;
      tapeFileWritten.copyNb=1;
      tapeFileWritten.compressedSize=archiveFileSize; // No compression
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      tapeFileWritten.diskInstance = s_diskInstance;
      tapeFileWritten.diskFileId = fseq;
      tapeFileWritten.diskFilePath = remoteFilePath.str();
      tapeFileWritten.diskFileUser = s_userName;
      tapeFileWritten.diskFileGroup = "someGroup";
      tapeFileWritten.diskFileRecoveryBlob = "B106";
      tapeFileWritten.storageClassName = s_storageClassName;
      tapeFileWritten.tapeDrive = "drive0";
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      catalogue.fileWrittenToTape(tapeFileWritten);
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      // Schedule the retrieval of the file
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      std::string diskInstance="disk_instance";
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      cta::common::dataStructures::RetrieveRequest rReq;
      rReq.archiveFileID=fseq;
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      rReq.requester.name = s_userName;
      rReq.requester.group = "someGroup";
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      rReq.dstURL = remoteFilePaths.back();
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      std::list<std::string> archiveFilePaths;
      archiveFilePaths.push_back(archiveFilePath.str());
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      scheduler.queueRetrieve(diskInstance, rReq);
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    }
  }
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  // 6) Create the data transfer session
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  DriveConfig driveConfig("T10D6116", "TestLogicalLibrary", "/dev/tape_T10D6116", "manual");
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  DataTransferConfig castorConf;
  castorConf.bufsz = 1024*1024; // 1 MB memory buffers
  castorConf.nbBufs = 10;
  castorConf.bulkRequestRecallMaxBytes = UINT64_C(100)*1000*1000*1000;
  castorConf.bulkRequestRecallMaxFiles = 1000;
  castorConf.nbDiskThreads = 1;
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  castor::messages::AcsProxyDummy acs;
  castor::mediachanger::MmcProxyDummy mmc;
  castor::legacymsg::RmcProxyDummy rmc;
  castor::mediachanger::MediaChangerFacade mc(acs, mmc, rmc);
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  castor::server::ProcessCap capUtils;
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  castor::messages::TapeserverProxyDummy initialProcess;
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  castor::tape::tapeserver::daemon::DataTransferSession sess("tapeHost", logger, mockSys,
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    driveConfig, mc, initialProcess, capUtils, castorConf, scheduler);
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  // 7) Run the data transfer session
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  sess.execute();
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  // 8) Check the session git the correct VID
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  ASSERT_EQ(s_vid, sess.getVid());
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  // 9) Check the remote files exist and have the correct size
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  for(auto & path: remoteFilePaths) {
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    struct stat statBuf;
    bzero(&statBuf, sizeof(statBuf));
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    const int statRc = stat(path.substr(7).c_str(), &statBuf); //remove the "file://" for stat-ing
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    ASSERT_EQ(0, statRc);
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    ASSERT_EQ(1000, statBuf.st_size); //same size of data
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  }
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}
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//
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//TEST_P(DataTransferSessionTest, DataTransferSessionWrongRecall) {
//  // This test is the same as the previous one, with 
//  // wrong parameters set for the recall, so that we fail 
//  // to recall the first file and cancel the second.
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//
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//  // 0) Prepare the logger for everyone
//  castor::log::StringLogger logger("tapeServerUnitTest");
//  
//  // 1) prepare the fake scheduler
//  std::string vid = "V12345";
//  // cta::MountType::Enum mountType = cta::MountType::RETRIEVE;
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//
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//  // 3) Prepare the necessary environment (logger, plus system wrapper), 
//  castor::tape::System::mockWrapper mockSys;
//  mockSys.delegateToFake();
//  mockSys.disableGMockCallsCounting();
//  mockSys.fake.setupForVirtualDriveSLC6();
//  //delete is unnecessary
//  //pointer with ownership will be passed to the application,
//  //which will do the delete 
//  mockSys.fake.m_pathToDrive["/dev/nst0"] = new castor::tape::tapeserver::drive::FakeDrive;
//
//  // 4) Create the scheduler
//  cta::catalogue::SqliteCatalogue sqliteCatalogue;
//  cta::MockRemoteNS rns;
//  cta::OStoreDBWrapper<cta::objectstore::BackendVFS> db("Unittest");
//  cta::Scheduler scheduler(ns, db, rns);
//
//  // Always use the same requester
//  const cta::SecurityIdentity requester;
//
//  // List to remember the path of each remote file so that the existance of the
//  // files can be tested for at the end of the test
//  std::list<std::string> remoteFilePaths;
//  
//  // 5) Create the tapepool, library and tape for the scheduler.
//  // Make mounts immediate.
//  ASSERT_NO_THROW(scheduler.createAdminUserWithoutAuthorizingRequester(requester, requester.getUser(), ""));
//  ASSERT_NO_THROW(scheduler.createAdminHostWithoutAuthorizingRequester(requester, requester.getHost(), ""));
//  ASSERT_NO_THROW(scheduler.createTapePool(requester, "TapePool", 1, ""));
//  cta::MountCriteria immediateMount;
//  immediateMount.maxAge = 0;
//  immediateMount.maxBytesQueued = 1;
//  immediateMount.maxFilesQueued = 1;
//  immediateMount.quota = 10;
//  ASSERT_NO_THROW(scheduler.setTapePoolMountCriteria("TapePool", cta::MountCriteriaByDirection(immediateMount, immediateMount)));                   
//  ASSERT_NO_THROW(scheduler.createLogicalLibrary(requester, "T10KD6", ""));
//  ASSERT_NO_THROW(scheduler.createTape(requester, "V12345", "T10KD6", "TapePool", 10*1000*1000, ""));
//  
//  // 5) Prepare files for reading by writing them to the mock system
//  {
//    // Label the tape
//    castor::tape::tapeFile::LabelSession ls(*mockSys.fake.m_pathToDrive["/dev/nst0"], 
//        "V12345", false);
//    mockSys.fake.m_pathToDrive["/dev/nst0"]->rewind();
//    // And write to it
//    castor::tape::tapeserver::daemon::VolumeInfo volInfo;
//    volInfo.vid="V12345";
//    castor::tape::tapeFile::WriteSession ws(*mockSys.fake.m_pathToDrive["/dev/nst0"],
//       volInfo , 0, true, false);
//
//    // Write a few files on the virtual tape and modify the archive name space
//    // so that it is in sync
//    uint8_t data[1000];
//    castor::tape::SCSI::Structures::zeroStruct(&data);
//    int fseq=1;
//    {
//      // Create a path to a remote destination file
//      std::ostringstream remoteFilePath;
//      remoteFilePath << "file://" << m_tmpDir << "/test" << fseq;
//      remoteFilePaths.push_back(remoteFilePath.str());
//
//      // Create an archive file entry in the archive namespace
//      std::ostringstream archiveFilePath;
//      archiveFilePath << "/test" << fseq;
//      const mode_t archiveFileMode = 0655;
//      const uint64_t archiveFileSize = 1000;
//      ASSERT_NO_THROW(ns.createFile(
//        requester,
//        archiveFilePath.str(),
//        archiveFileMode,
//        cta::Checksum(cta::Checksum::CHECKSUMTYPE_ADLER32, cta::utils::getAdler32(data, sizeof data)),
//        archiveFileSize));
//
//      // Write the file to tape
//      cta::catalogue::SqliteCatalogue sqliteCatalogue;
//      cta::MockArchiveMount mam(mns);
//      cta::MockRetrieveMount mrm;
//      std::unique_ptr<cta::RetrieveJob> ftr(new cta::MockRetrieveJob(mrm));
//      std::unique_ptr<cta::ArchiveJob> ftm_temp(new cta::MockArchiveJob(mam, mns));
//      ftr->tapeFile.tapeFileLocation.fSeq = fseq;
//      ftm_temp->tapeFile.tapeFileLocation.fSeq = fseq;
//      ftr->archiveFile.fileId = 1000 + fseq;
//      ftm_temp->archiveFile.fileId = 1000 + fseq;
//      castor::tape::tapeFile::WriteFile wf(&ws, *ftm_temp, archiveFileSize);
//      ftr->tapeFile.tapeFileLocation.blockId = wf.getBlockId();
//      ftr->remotePath = remoteFilePath.str();
//      // Write the data (one block)
//      wf.write(data, sizeof(data));
//      // Close the file
//      wf.close();
//
//      // Create tape file entry in the archive namespace that is beyond the end
//      // of data
//      cta::NameServerTapeFile tapeFile;
//      tapeFile.copyNb = 1;
//      tapeFile.tapeFileLocation.fSeq = fseq + 10000;
//      tapeFile.tapeFileLocation.blockId = wf.getBlockId() + 10000;
//      tapeFile.tapeFileLocation.vid = volInfo.vid;
//      tapeFile.tapeFileLocation.copyNb = 1;
//      tapeFile.size = archiveFileSize;
//      tapeFile.compressedSize = archiveFileSize; // No compression
//      cta::Checksum tapeFileChecksum(cta::Checksum::CHECKSUMTYPE_ADLER32, cta::utils::getAdler32(data, sizeof data));
//      tapeFile.checksum = tapeFileChecksum;
//      ASSERT_NO_THROW(ns.addTapeFile(
//        requester,
//        archiveFilePath.str(),
//        tapeFile));
//
//      // Schedule the retrieval of the file
//      std::list<std::string> archiveFilePaths;
//      archiveFilePaths.push_back(archiveFilePath.str());
//      ASSERT_NO_THROW(scheduler.queueRetrieveRequest(
//        requester,
//        archiveFilePaths,
//        remoteFilePath.str()));
//    }
590
//  }
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//
//  // 6) Create the data transfer session
//  DriveConfig driveConfig("T10D6116", "T10KD6", "/dev/tape_T10D6116", "manual");
//  DataTransferConfig castorConf;
//  castorConf.bufsz = 1024*1024; // 1 MB memory buffers
//  castorConf.nbBufs = 10;
//  castorConf.bulkRequestRecallMaxBytes = UINT64_C(100)*1000*1000*1000;
//  castorConf.bulkRequestRecallMaxFiles = 1000;
//  castorConf.nbDiskThreads = 1;
//  castor::messages::AcsProxyDummy acs;
//  castor::mediachanger::MmcProxyDummy mmc;
//  castor::legacymsg::RmcProxyDummy rmc;
//  castor::mediachanger::MediaChangerFacade mc(acs, mmc, rmc);
//  castor::server::ProcessCap capUtils;
//  castor::messages::TapeserverProxyDummy initialProcess;
//  DataTransferSession sess("tapeHost", logger, mockSys,
//    driveConfig, mc, initialProcess, capUtils, castorConf, scheduler);
//
//  // 7) Run the data transfer session
//  ASSERT_NO_THROW(sess.execute());
//
//  // 8) Check the session git the correct VID
//  ASSERT_EQ("V12345", sess.getVid());
//
//  // 9) Check the remote files exist and have the correct size
//  std::string temp = logger.getLog();
//  ASSERT_NE(std::string::npos, logger.getLog().find("trying to position beyond the end of data"));
//}
//
//TEST_P(DataTransferSessionTest, DataTransferSessionNoSuchDrive) {
//  
//  // 0) Prepare the logger for everyone
//  castor::log::StringLogger logger("tapeServerUnitTest");
//  
//  // 1) prepare the fake scheduler
//  std::string vid = "V12345";
//  // cta::MountType::Enum mountType = cta::MountType::RETRIEVE;
//
//  // 3) Prepare the necessary environment (logger, plus system wrapper), 
//  castor::tape::System::mockWrapper mockSys;
//  mockSys.delegateToFake();
//  mockSys.disableGMockCallsCounting();
//  mockSys.fake.setupForVirtualDriveSLC6();
//  //delete is unnecessary
//  //pointer with ownership will be passed to the application,
//  //which will do the delete 
//  mockSys.fake.m_pathToDrive["/dev/nst0"] = new castor::tape::tapeserver::drive::FakeDrive;
//
//  // 4) Create the scheduler
//  cta::catalogue::SqliteCatalogue sqliteCatalogue;
//  cta::MockRemoteNS rns;
//  cta::OStoreDBWrapper<cta::objectstore::BackendVFS> db("Unittest");
//  cta::Scheduler scheduler(ns, db, rns);
//
//  // Always use the same requester
//  const cta::SecurityIdentity requester;
//  
//  // List to remember the path of each remote file so that the existance of the
//  // files can be tested for at the end of the test
//  std::list<std::string> remoteFilePaths;
//  
//  // 5) Create the tapepool, library and tape for the scheduler.
//  // Make mounts immediate.
//  ASSERT_NO_THROW(scheduler.createAdminUserWithoutAuthorizingRequester(requester, requester.getUser(), ""));
//  ASSERT_NO_THROW(scheduler.createAdminHostWithoutAuthorizingRequester(requester, requester.getHost(), ""));
//  ASSERT_NO_THROW(scheduler.createTapePool(requester, "TapePool", 1, ""));
//  cta::MountCriteria immediateMount;
//  immediateMount.maxAge = 0;
//  immediateMount.maxBytesQueued = 1;
//  immediateMount.maxFilesQueued = 1;
//  immediateMount.quota = 10;
//  ASSERT_NO_THROW(scheduler.setTapePoolMountCriteria("TapePool", cta::MountCriteriaByDirection(immediateMount, immediateMount)));                   
//  ASSERT_NO_THROW(scheduler.createLogicalLibrary(requester, "T10KD6", ""));
//  ASSERT_NO_THROW(scheduler.createTape(requester, "V12345", "T10KD6", "TapePool", 10*1000*1000, ""));
//  
//  // 5) Prepare files for reading by writing them to the mock system
//  {
//    // Label the tape
//    castor::tape::tapeFile::LabelSession ls(*mockSys.fake.m_pathToDrive["/dev/nst0"], 
//        "V12345", false);
//    mockSys.fake.m_pathToDrive["/dev/nst0"]->rewind();
//    // And write to it
//    castor::tape::tapeserver::daemon::VolumeInfo volInfo;
//    volInfo.vid="V12345";
//    castor::tape::tapeFile::WriteSession ws(*mockSys.fake.m_pathToDrive["/dev/nst0"],
//       volInfo , 0, true, false);
//
//    // Write a few files on the virtual tape and modify the archive name space
//    // so that it is in sync
//    uint8_t data[1000];
//    castor::tape::SCSI::Structures::zeroStruct(&data);
//    int fseq=1;
//    {
//      // Create a path to a remote destination file
//      std::ostringstream remoteFilePath;
//      remoteFilePath << "file://" << m_tmpDir << "/test" << fseq;
//      remoteFilePaths.push_back(remoteFilePath.str());
//
//      // Create an archive file entry in the archive namespace
//      std::ostringstream archiveFilePath;
//      archiveFilePath << "/test" << fseq;
//      const mode_t archiveFileMode = 0655;
//      const uint64_t archiveFileSize = 1000;
//      ASSERT_NO_THROW(ns.createFile(
//        requester,
//        archiveFilePath.str(),
//        archiveFileMode,
//        cta::Checksum(cta::Checksum::CHECKSUMTYPE_ADLER32, cta::utils::getAdler32(data, sizeof data)),
//        archiveFileSize));
//
//      // Write the file to tape
//      cta::catalogue::SqliteCatalogue sqliteCatalogue;
//      cta::MockArchiveMount mam(mns);
//      cta::MockRetrieveMount mrm;
//      std::unique_ptr<cta::RetrieveJob> ftr(new cta::MockRetrieveJob(mrm));
//      std::unique_ptr<cta::ArchiveJob> ftm_temp(new cta::MockArchiveJob(mam, mns));
//      ftr->tapeFile.tapeFileLocation.fSeq = fseq;
//      ftm_temp->tapeFile.tapeFileLocation.fSeq = fseq;
//      ftr->archiveFile.fileId = 1000 + fseq;
//      ftm_temp->archiveFile.fileId = 1000 + fseq;
//      castor::tape::tapeFile::WriteFile wf(&ws, *ftm_temp, archiveFileSize);
//      ftr->tapeFile.tapeFileLocation.blockId = wf.getBlockId();
//      ftr->remotePath = remoteFilePath.str();
//      // Write the data (one block)
//      wf.write(data, sizeof(data));
//      // Close the file
//      wf.close();
//
//      // Create tape file entry in the archive namespace that is beyond the end
//      // of data
//      cta::NameServerTapeFile tapeFile;
//      tapeFile.copyNb = 1;
//      tapeFile.tapeFileLocation.fSeq = fseq + 1000;
//      tapeFile.tapeFileLocation.blockId = wf.getBlockId();
//      tapeFile.tapeFileLocation.vid = volInfo.vid;
//      tapeFile.tapeFileLocation.copyNb = 1;
//      tapeFile.size = archiveFileSize;
//      tapeFile.compressedSize = archiveFileSize; // No compression
//      cta::Checksum tapeFileChecksum(cta::Checksum::CHECKSUMTYPE_ADLER32, cta::utils::getAdler32(data, sizeof data));
//      tapeFile.checksum = tapeFileChecksum;
//      ASSERT_NO_THROW(ns.addTapeFile(
//        requester,
//        archiveFilePath.str(),
//        tapeFile));
//
//      // Schedule the retrieval of the file
//      std::list<std::string> archiveFilePaths;
//      archiveFilePaths.push_back(archiveFilePath.str());
//      ASSERT_NO_THROW(scheduler.queueRetrieveRequest(
//        requester,
//        archiveFilePaths,
//        remoteFilePath.str()));
//    }
//  }
//  
//  DriveConfig driveConfig("T10D6116", "T10KD6", "/dev/noSuchDrive", "manual");
//  DataTransferConfig castorConf;
//  castorConf.bufsz = 1024;
//  castorConf.nbBufs = 10;
//  castor::messages::AcsProxyDummy acs;
//  castor::mediachanger::MmcProxyDummy mmc;
//  castor::legacymsg::RmcProxyDummy rmc;
//  castor::mediachanger::MediaChangerFacade mc(acs, mmc, rmc);
//  castor::messages::TapeserverProxyDummy initialProcess;
//  castor::server::ProcessCapDummy capUtils;
//  DataTransferSession sess("tapeHost", logger, mockSys,
//    driveConfig, mc, initialProcess, capUtils, castorConf, scheduler);
//  ASSERT_NO_THROW(sess.execute());
//  std::string temp = logger.getLog();
//  ASSERT_NE(std::string::npos, logger.getLog().find("Could not stat path: /dev/noSuchDrive"));
//}
//
//TEST_P(DataTransferSessionTest, DataTransferSessionFailtoMount) {
//  
//  // 0) Prepare the logger for everyone
//  castor::log::StringLogger logger("tapeServerUnitTest");
//  
//  // 1) prepare the fake scheduler
//  std::string vid = "V12345";
//  // cta::MountType::Enum mountType = cta::MountType::RETRIEVE;
//
//  // 3) Prepare the necessary environment (logger, plus system wrapper), 
//  castor::tape::System::mockWrapper mockSys;
//  mockSys.delegateToFake();
//  mockSys.disableGMockCallsCounting();
//  mockSys.fake.setupForVirtualDriveSLC6();
//
//  // 4) Create the scheduler
//  cta::catalogue::SqliteCatalogue sqliteCatalogue;
//  cta::MockRemoteNS rns;
//  cta::OStoreDBWrapper<cta::objectstore::BackendVFS> db("Unittest");
//  cta::Scheduler scheduler(ns, db, rns);
//
//  // Always use the same requester
//  const cta::SecurityIdentity requester;
//  
//  // List to remember the path of each remote file so that the existance of the
//  // files can be tested for at the end of the test
//  std::list<std::string> remoteFilePaths;
//  
//  // 5) Create the tapepool, library and tape for the scheduler.
//  // Make mounts immediate.
//  ASSERT_NO_THROW(scheduler.createAdminUserWithoutAuthorizingRequester(requester, requester.getUser(), ""));
//  ASSERT_NO_THROW(scheduler.createAdminHostWithoutAuthorizingRequester(requester, requester.getHost(), ""));
//  ASSERT_NO_THROW(scheduler.createTapePool(requester, "TapePool", 1, ""));
//  cta::MountCriteria immediateMount;
//  immediateMount.maxAge = 0;
//  immediateMount.maxBytesQueued = 1;
//  immediateMount.maxFilesQueued = 1;
//  immediateMount.quota = 10;
//  ASSERT_NO_THROW(scheduler.setTapePoolMountCriteria("TapePool", cta::MountCriteriaByDirection(immediateMount, immediateMount)));                   
//  ASSERT_NO_THROW(scheduler.createLogicalLibrary(requester, "T10KD6", ""));
//  ASSERT_NO_THROW(scheduler.createTape(requester, "V12345", "T10KD6", "TapePool", 10*1000*1000, ""));
//
//  //delete is unnecessary
//  //pointer with ownership will be passed to the application,
//  //which will do the delete 
//  const bool failOnMount=true;
//  mockSys.fake.m_pathToDrive["/dev/nst0"] = new castor::tape::tapeserver::drive::FakeDrive(failOnMount);
//  
//  // We can prepare files for reading on the drive
//  {
//    
//    // Label the tape
//    castor::tape::tapeFile::LabelSession ls(*mockSys.fake.m_pathToDrive["/dev/nst0"], 
//        "V12345");
//    mockSys.fake.m_pathToDrive["/dev/nst0"]->rewind();
//    // And write to it
//    castor::tape::tapeserver::daemon::VolumeInfo volInfo;
//    volInfo.vid="V12345";
//    castor::tape::tapeFile::WriteSession ws(*mockSys.fake.m_pathToDrive["/dev/nst0"],
//       volInfo , 0, true);
//
//    // Write a few files on the virtual tape and modify the archive name space
//    // so that it is in sync
//    uint8_t data[1000];
//    castor::tape::SCSI::Structures::zeroStruct(&data);
//    for (int fseq=1; fseq <= 10 ; fseq ++) {
//      // Create a path to a remote destination file
//      std::ostringstream remoteFilePath;
//      remoteFilePath << "file://" << m_tmpDir << "/test" << fseq;
//      remoteFilePaths.push_back(remoteFilePath.str());
//
//      // Create an archive file entry in the archive namespace
//      std::ostringstream archiveFilePath;
//      archiveFilePath << "/test" << fseq;
//      const mode_t archiveFileMode = 0655;
//      const uint64_t archiveFileSize = 1000;
//      ASSERT_NO_THROW(ns.createFile(
//        requester,
//        archiveFilePath.str(),
//        archiveFileMode,
//        cta::Checksum(),
//        archiveFileSize));
//
//      // Write the file to tape
//      cta::MockNameServer  mns;
//      cta::MockArchiveMount mam(mns);
//      cta::MockRetrieveMount mrm;
//      std::unique_ptr<cta::RetrieveJob> ftr(new cta::MockRetrieveJob(mrm));
//      std::unique_ptr<cta::ArchiveJob> ftm_temp(new cta::MockArchiveJob(mam, mns));
//      ftr->tapeFile.tapeFileLocation.fSeq = fseq;
//      ftm_temp->tapeFile.tapeFileLocation.fSeq = fseq;
//      ftr->archiveFile.fileId = 1000 + fseq;
//      ftm_temp->archiveFile.fileId = 1000 + fseq;
//      castor::tape::tapeFile::WriteFile wf(&ws, *ftm_temp, archiveFileSize);
//      ftr->tapeFile.tapeFileLocation.blockId = wf.getPosition();
//      ftr->remotePath = remoteFilePath.str();
//      // Write the data (one block)
//      wf.write(data, sizeof(data));
//      // Close the file
//      wf.close();
//
//      // Create tape file entry in the archive namespace
//      cta::NameServerTapeFile tapeFile;
//      tapeFile.copyNb = 1;
//      tapeFile.tapeFileLocation.fSeq = fseq;
//      tapeFile.tapeFileLocation.blockId = wf.getPosition();
//      tapeFile.tapeFileLocation.vid = volInfo.vid;
//      tapeFile.tapeFileLocation.copyNb = 1;
//      tapeFile.size = archiveFileSize;
//      tapeFile.compressedSize = archiveFileSize; // No compression
//      cta::Checksum tapeFileChecksum(cta::Checksum::CHECKSUMTYPE_ADLER32, cta::utils::getAdler32(data, sizeof data));
//      tapeFile.checksum = tapeFileChecksum;
//      ASSERT_NO_THROW(ns.addTapeFile(
//        requester,
//        archiveFilePath.str(),
//        tapeFile));
//
//      // Schedule the retrieval of the file
//      std::list<std::string> archiveFilePaths;
//      archiveFilePaths.push_back(archiveFilePath.str());
//      ASSERT_NO_THROW(scheduler.queueRetrieveRequest(
//        requester,
//        archiveFilePaths,
//        remoteFilePath.str()));
//    }
//  }
//  DriveConfig driveConfig("T10D6116", "T10KD6", "/dev/tape_T10D6116", "manual");
//  DataTransferConfig castorConf;
//  castorConf.bufsz = 1024*1024; // 1 MB memory buffers
//  castorConf.nbBufs = 10;
//  castorConf.bulkRequestRecallMaxBytes = UINT64_C(100)*1000*1000*1000;
//  castorConf.bulkRequestRecallMaxFiles = 1000;
//  castorConf.nbDiskThreads = 3;
//  castor::messages::AcsProxyDummy acs;
//  castor::mediachanger::MmcProxyDummy mmc;
//  castor::legacymsg::RmcProxyDummy rmc;
//  castor::mediachanger::MediaChangerFacade mc(acs, mmc, rmc);
//  castor::server::ProcessCap capUtils;
//  castor::messages::TapeserverProxyDummy initialProcess;
//  DataTransferSession sess("tapeHost", logger, mockSys,
//    driveConfig, mc, initialProcess, capUtils, castorConf, scheduler);
//  ASSERT_NO_THROW(sess.execute());
//  std::string temp = logger.getLog();
//  ASSERT_NE(std::string::npos, logger.getLog().find("Failed to mount the tape"));
//}
//
//TEST_P(DataTransferSessionTest, DataTransferSessionEmptyOnVolReq) {
//  
//  // 0) Prepare the logger for everyone
//  castor::log::StringLogger logger("tapeServerUnitTest");
//  
//  // 1) prepare the fake scheduler
//  std::string vid = "V12345";
//  // cta::MountType::Enum mountType = cta::MountType::RETRIEVE;
//
//  // 3) Prepare the necessary environment (logger, plus system wrapper), 
//  castor::tape::System::mockWrapper mockSys;
//  mockSys.delegateToFake();
//  mockSys.disableGMockCallsCounting();
//  mockSys.fake.setupForVirtualDriveSLC6();
//  
//  // The drive will not even be opened. so no need for one.
//  mockSys.fake.m_pathToDrive["/dev/nst0"] = NULL;
//  
//  // 4) Create the scheduler
//  cta::catalogue::SqliteCatalogue sqliteCatalogue;
//  cta::MockRemoteNS rns;
//  cta::OStoreDBWrapper<cta::objectstore::BackendVFS> db("Unittest");
//  cta::Scheduler scheduler(ns, db, rns);
//
//  // Always use the same requester
//  const cta::SecurityIdentity requester;
//  
//  DriveConfig driveConfig("T10D6116", "T10KD6", "/dev/tape_T10D6116", "manual");
//  DataTransferConfig castorConf;
//  castorConf.bufsz = 1024*1024; // 1 MB memory buffers
//  castorConf.nbBufs = 10;
//  castorConf.bulkRequestRecallMaxBytes = UINT64_C(100)*1000*1000*1000;
//  castorConf.bulkRequestRecallMaxFiles = 1000;
//  castorConf.nbDiskThreads = 3;
//  castor::messages::AcsProxyDummy acs;
//  castor::mediachanger::MmcProxyDummy mmc;
//  castor::legacymsg::RmcProxyDummy rmc;
//  castor::mediachanger::MediaChangerFacade mc(acs, mmc, rmc);
//  castor::server::ProcessCap capUtils;
//  castor::messages::TapeserverProxyDummy initialProcess;
//  DataTransferSession sess("tapeHost", logger, mockSys,
//    driveConfig, mc, initialProcess, capUtils, castorConf, scheduler);
//  ASSERT_NO_THROW(sess.execute());
//  std::string temp = logger.getLog();
//  temp += "";
//  ASSERT_EQ("", sess.getVid());
//  // We should not have logged any error
//  ASSERT_EQ(std::string::npos, logger.getLog().find("LVL=E"));
//}
//
//TEST_P(DataTransferSessionTest, DataTransferSessionGooddayMigration) {
//  
//  // 0) Prepare the logger for everyone
//  castor::log::StringLogger logger("tapeServerUnitTest");
//  
//  // 1) prepare the fake scheduler
//  std::string vid = "V12345";
//
//  // 3) Prepare the necessary environment (logger, plus system wrapper), 
//  castor::tape::System::mockWrapper mockSys;
//  mockSys.delegateToFake();
//  mockSys.disableGMockCallsCounting();
//  mockSys.fake.setupForVirtualDriveSLC6();
//
//  // 4) Create the scheduler
//  cta::catalogue::SqliteCatalogue sqliteCatalogue;
//  cta::MockRemoteFullFS rns;
//  cta::OStoreDBWrapper<cta::objectstore::BackendVFS> db("Unittest");
//  cta::Scheduler scheduler(ns, db, rns);
//
//  // Always use the same requester
//  const cta::SecurityIdentity requester;
//  
//  // Create the bootstrap admin user and host
//  ASSERT_NO_THROW(scheduler.createAdminUserWithoutAuthorizingRequester(requester, requester.getUser(), "admin user"));
//  ASSERT_NO_THROW(scheduler.createAdminHostWithoutAuthorizingRequester(requester, requester.getHost(), "admin host"));
//  
//  // create a single copy storage class
//  ASSERT_NO_THROW(scheduler.createStorageClass(requester, "SINGLE", 1, 1, "comment"));
//  
//  // assign it to the root directory
//  ASSERT_NO_THROW(scheduler.setDirStorageClass(requester, "/", "SINGLE"));
//  
//  // create the logical library
//  ASSERT_NO_THROW(scheduler.createLogicalLibrary(requester, "T10KD6", "the illogical library"));
//  
//  // create the tape pool
//  ASSERT_NO_THROW(scheduler.createTapePool(requester, "swimmingpool", 2, "the swimming pool"));
//  
//  cta::MountCriteria immediateMount;
//  immediateMount.maxAge = 0;
//  immediateMount.maxBytesQueued = 1;