--- a/CMakeLists.txt	Tue Oct 02 15:54:36 2018 +0200
+++ b/CMakeLists.txt	Tue Oct 02 17:05:36 2018 +0200
@@ -85,6 +85,7 @@
   OrthancServer/ServerJobs/ArchiveJob.cpp
   OrthancServer/ServerJobs/DicomModalityStoreJob.cpp
   OrthancServer/ServerJobs/LuaJobManager.cpp
+  OrthancServer/ServerJobs/MergeStudyJob.cpp
   OrthancServer/ServerJobs/Operations/DeleteResourceOperation.cpp
   OrthancServer/ServerJobs/Operations/ModifyInstanceOperation.cpp
   OrthancServer/ServerJobs/Operations/StorePeerOperation.cpp

--- a/Core/Images/Font.cpp	Tue Oct 02 15:54:36 2018 +0200
+++ b/Core/Images/Font.cpp	Tue Oct 02 17:05:36 2018 +0200
@@ -219,6 +219,7 @@
         }
 
         case PixelFormat_RGBA32:
+        case PixelFormat_BGRA32:
         {
           assert(bpp == 4);
 
@@ -256,7 +257,8 @@
   {
     if (target.GetFormat() != PixelFormat_Grayscale8 &&
         target.GetFormat() != PixelFormat_RGB24 &&
-        target.GetFormat() != PixelFormat_RGBA32)
+        target.GetFormat() != PixelFormat_RGBA32 &&
+        target.GetFormat() != PixelFormat_BGRA32)
     {
       throw OrthancException(ErrorCode_NotImplemented);
     }
@@ -311,7 +313,25 @@
                   uint8_t g,
                   uint8_t b) const
   {
-    uint8_t color[4] = { r, g, b, 255 };
+    uint8_t color[4];
+
+    switch (target.GetFormat())
+    {
+      case PixelFormat_BGRA32:
+        color[0] = b;
+        color[1] = g;
+        color[2] = r;
+        color[3] = 255;
+        break;
+
+      default:
+        color[0] = r;
+        color[1] = g;
+        color[2] = b;
+        color[3] = 255;
+        break;
+    }
+    
     DrawInternal(target, utf8, x, y, color);
   }
 

--- a/NEWS	Tue Oct 02 15:54:36 2018 +0200
+++ b/NEWS	Tue Oct 02 17:05:36 2018 +0200
@@ -5,6 +5,7 @@
 REST API
 --------
 
+* New URI: "/studies/.../merge" to merge a study
 * New URI: "/studies/.../split" to split a study
 
 Maintenance

--- a/OrthancServer/OrthancRestApi/OrthancRestAnonymizeModify.cpp	Tue Oct 02 15:54:36 2018 +0200
+++ b/OrthancServer/OrthancRestApi/OrthancRestAnonymizeModify.cpp	Tue Oct 02 17:05:36 2018 +0200
@@ -38,6 +38,7 @@
 #include "../../Core/Logging.h"
 #include "../../Core/SerializationToolbox.h"
 #include "../ServerContext.h"
+#include "../ServerJobs/MergeStudyJob.h"
 #include "../ServerJobs/ResourceModificationJob.h"
 #include "../ServerJobs/SplitStudyJob.h"
 
@@ -741,6 +742,47 @@
   }
 
 
+  static void MergeStudy(RestApiPostCall& call)
+  {
+    ServerContext& context = OrthancRestApi::GetContext(call);
+
+    Json::Value request;
+    if (!call.ParseJsonRequest(request))
+    {
+      // Bad JSON request
+      throw OrthancException(ErrorCode_BadFileFormat);
+    }
+
+    const std::string study = call.GetUriComponent("id", "");
+    int priority = Toolbox::GetJsonIntegerField(request, "Priority", 0);
+
+    std::auto_ptr<MergeStudyJob> job(new MergeStudyJob(context, study));    
+    job->SetOrigin(call);
+    job->SetDescription("REST API");
+
+    std::vector<std::string> resources;
+    SerializationToolbox::ReadArrayOfStrings(resources, request, "Resources");
+
+    for (size_t i = 0; i < resources.size(); i++)
+    {
+      job->AddSource(resources[i]);
+    }
+
+    static const char* KEEP_SOURCE = "KeepSource";
+    if (request.isMember(KEEP_SOURCE))
+    {
+      job->SetKeepSource(SerializationToolbox::ReadBoolean(request, KEEP_SOURCE));
+    }
+
+    std::string id;
+    context.GetJobsEngine().GetRegistry().Submit(id, job.release(), priority);
+    
+    Json::Value v;
+    v["ID"] = id;
+    call.GetOutput().AnswerJson(v);
+  }
+  
+
   void OrthancRestApi::RegisterAnonymizeModify()
   {
     Register("/instances/{id}/modify", ModifyInstance);
@@ -756,5 +798,6 @@
     Register("/tools/create-dicom", CreateDicom);
 
     Register("/studies/{id}/split", SplitStudy);
+    Register("/studies/{id}/merge", MergeStudy);
   }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/ServerJobs/MergeStudyJob.cpp	Tue Oct 02 17:05:36 2018 +0200
@@ -0,0 +1,396 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * 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 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * 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, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "MergeStudyJob.h"
+
+#include "../../Core/DicomParsing/FromDcmtkBridge.h"
+#include "../../Core/Logging.h"
+#include "../../Core/SerializationToolbox.h"
+
+
+namespace Orthanc
+{
+  void MergeStudyJob::AddSourceSeriesInternal(const std::string& series)
+  {
+    // Generate a target SeriesInstanceUID for this series
+    seriesUidMap_[series] = FromDcmtkBridge::GenerateUniqueIdentifier(ResourceType_Series);
+
+    // Add all the instances of the series as to be processed
+    std::list<std::string> instances;
+    context_.GetIndex().GetChildren(instances, series);
+
+    for (std::list<std::string>::const_iterator
+           it = instances.begin(); it != instances.end(); ++it)
+    {
+      AddInstance(*it);
+    }
+  }
+
+
+  void MergeStudyJob::AddSourceStudyInternal(const std::string& study)
+  {
+    if (study == targetStudy_)
+    {
+      LOG(ERROR) << "Cannot merge a study into the same study: " << study;
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+    else
+    {
+      std::list<std::string> series;
+      context_.GetIndex().GetChildren(series, study);
+
+      for (std::list<std::string>::const_iterator
+             it = series.begin(); it != series.end(); ++it)
+      {
+        AddSourceSeriesInternal(*it);
+      }
+    }
+  }
+
+
+  bool MergeStudyJob::HandleInstance(const std::string& instance)
+  {
+    /**
+     * Retrieve the DICOM instance to be modified
+     **/
+    
+    std::auto_ptr<ParsedDicomFile> modified;
+
+    try
+    {
+      ServerContext::DicomCacheLocker locker(context_, instance);
+      modified.reset(locker.GetDicom().Clone(true));
+    }
+    catch (OrthancException&)
+    {
+      LOG(WARNING) << "An instance was removed after the job was issued: " << instance;
+      return false;
+    }
+
+
+    /**
+     * Chose the target UIDs
+     **/
+
+    std::string series = modified->GetHasher().HashSeries();
+
+    SeriesUidMap::const_iterator targetSeriesUid = seriesUidMap_.find(series);
+
+    if (targetSeriesUid == seriesUidMap_.end())
+    {
+      throw OrthancException(ErrorCode_BadFileFormat);  // Should never happen
+    }
+
+
+    /**
+     * Copy the tags from the "Patient Module Attributes" and "General
+     * Study Module Attributes" modules of the target study
+     **/
+
+    for (std::set<DicomTag>::const_iterator it = removals_.begin();
+         it != removals_.end(); ++it)
+    {
+      modified->Remove(*it);
+    }
+    
+    for (Replacements::const_iterator it = replacements_.begin();
+         it != replacements_.end(); ++it)
+    {
+      modified->ReplacePlainString(it->first, it->second);
+    }
+
+
+    /**
+     * Store the new instance into Orthanc
+     **/
+    
+    modified->ReplacePlainString(DICOM_TAG_SERIES_INSTANCE_UID, targetSeriesUid->second);
+
+    DicomInstanceToStore toStore;
+    toStore.SetOrigin(origin_);
+    toStore.SetParsedDicomFile(*modified);
+
+    std::string modifiedInstance;
+    if (context_.Store(modifiedInstance, toStore) != StoreStatus_Success)
+    {
+      LOG(ERROR) << "Error while storing a modified instance " << instance;
+      return false;
+    }
+
+    return true;
+  }
+
+  
+  bool MergeStudyJob::HandleTrailingStep()
+  {
+    if (!keepSource_)
+    {
+      const size_t n = GetInstancesCount();
+
+      for (size_t i = 0; i < n; i++)
+      {
+        Json::Value tmp;
+        context_.DeleteResource(tmp, GetInstance(i), ResourceType_Instance);
+      }
+    }
+
+    return true;
+  }
+
+  
+  MergeStudyJob::MergeStudyJob(ServerContext& context,
+                               const std::string& targetStudy) :
+    SetOfInstancesJob(true /* with trailing step */),
+    context_(context),
+    keepSource_(false),
+    targetStudy_(targetStudy)
+  {
+    /**
+     * Check the validity of the input ID
+     **/
+    
+    ResourceType type;
+
+    if (!context_.GetIndex().LookupResourceType(type, targetStudy) ||
+        type != ResourceType_Study)
+    {
+      LOG(ERROR) << "Cannot merge into an unknown study: " << targetStudy;
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+
+
+    /**
+     * Detect the tags to be removed/replaced by parsing one child
+     * instance of the study
+     **/
+
+    DicomTag::AddTagsForModule(removals_, DicomModule_Patient);
+    DicomTag::AddTagsForModule(removals_, DicomModule_Study);
+    
+    std::list<std::string> instances;
+    context_.GetIndex().GetChildInstances(instances, targetStudy);
+    
+    if (instances.empty())
+    {
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+
+    DicomMap dicom;
+
+    {
+      ServerContext::DicomCacheLocker locker(context_, instances.front());
+      locker.GetDicom().ExtractDicomSummary(dicom);
+    }
+
+    const std::set<DicomTag> moduleTags = removals_;
+    for (std::set<DicomTag>::const_iterator it = moduleTags.begin();
+         it != moduleTags.end(); ++it)
+    {
+      const DicomValue* value = dicom.TestAndGetValue(*it);
+      std::string str;
+      
+      if (value != NULL &&
+          value->CopyToString(str, false))
+      {
+        removals_.erase(*it);
+        replacements_.insert(std::make_pair(*it, str));
+      }
+    }
+  }
+  
+
+  void MergeStudyJob::SetOrigin(const DicomInstanceOrigin& origin)
+  {
+    if (IsStarted())
+    {
+      throw OrthancException(ErrorCode_BadSequenceOfCalls);
+    }
+    else
+    {
+      origin_ = origin;
+    }
+  }
+
+  
+  void MergeStudyJob::SetOrigin(const RestApiCall& call)
+  {
+    SetOrigin(DicomInstanceOrigin::FromRest(call));
+  }
+
+
+  void MergeStudyJob::AddSource(const std::string& studyOrSeries)
+  {
+    ResourceType level;
+    
+    if (IsStarted())
+    {
+      throw OrthancException(ErrorCode_BadSequenceOfCalls);
+    }
+    else if (!context_.GetIndex().LookupResourceType(level, studyOrSeries))
+    {
+      LOG(ERROR) << "Cannot find this resource: " << studyOrSeries;
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+    else
+    {
+      switch (level)
+      {
+        case ResourceType_Study:
+          AddSourceStudyInternal(studyOrSeries);
+          break;
+          
+        case ResourceType_Series:
+          AddSourceSeries(studyOrSeries);
+          break;
+          
+        default:
+          LOG(ERROR) << "This resource is neither a study, nor a series: "
+                     << studyOrSeries << " is a " << EnumerationToString(level);
+          throw OrthancException(ErrorCode_UnknownResource);
+      }
+    }    
+  }
+  
+
+  void MergeStudyJob::AddSourceSeries(const std::string& series)
+  {
+    std::string parent;
+
+    if (IsStarted())
+    {
+      throw OrthancException(ErrorCode_BadSequenceOfCalls);
+    }
+    else if (!context_.GetIndex().LookupParent(parent, series, ResourceType_Study))
+    {
+      LOG(ERROR) << "This resource is not a series: " << series;
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+    else if (parent == targetStudy_)
+    {
+      LOG(ERROR) << "Cannot merge series " << series
+                 << " into its parent study " << targetStudy_;
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+    else
+    {
+      AddSourceSeriesInternal(series);
+    }    
+  }
+
+
+  void MergeStudyJob::AddSourceStudy(const std::string& study)
+  {
+    ResourceType actualLevel;
+
+    if (IsStarted())
+    {
+      throw OrthancException(ErrorCode_BadSequenceOfCalls);
+    }
+    else if (!context_.GetIndex().LookupResourceType(actualLevel, study) ||
+             actualLevel != ResourceType_Study)
+    {
+      LOG(ERROR) << "This resource is not a study: " << study;
+      throw OrthancException(ErrorCode_UnknownResource);
+    }
+    else
+    {
+      AddSourceStudyInternal(study);
+    }    
+  }
+
+
+  void MergeStudyJob::SetKeepSource(bool keep)
+  {
+    if (IsStarted())
+    {
+      throw OrthancException(ErrorCode_BadSequenceOfCalls);
+    }
+
+    keepSource_ = keep;
+  }
+
+
+  void MergeStudyJob::GetPublicContent(Json::Value& value)
+  {
+    SetOfInstancesJob::GetPublicContent(value);
+    value["TargetStudy"] = targetStudy_;
+  }
+
+
+  static const char* KEEP_SOURCE = "KeepSource";
+  static const char* TARGET_STUDY = "TargetStudy";
+  static const char* REPLACEMENTS = "Replacements";
+  static const char* REMOVALS = "Removals";
+  static const char* SERIES_UID_MAP = "SeriesUIDMap";
+  static const char* ORIGIN = "Origin";
+
+
+  MergeStudyJob::MergeStudyJob(ServerContext& context,
+                               const Json::Value& serialized) :
+    SetOfInstancesJob(serialized),  // (*)
+    context_(context)
+  {
+    if (!HasTrailingStep())
+    {
+      // Should have been set by (*)
+      throw OrthancException(ErrorCode_InternalError);
+    }
+
+    keepSource_ = SerializationToolbox::ReadBoolean(serialized, KEEP_SOURCE);
+    targetStudy_ = SerializationToolbox::ReadString(serialized, TARGET_STUDY);
+    SerializationToolbox::ReadMapOfTags(replacements_, serialized, REPLACEMENTS);
+    SerializationToolbox::ReadSetOfTags(removals_, serialized, REMOVALS);
+    SerializationToolbox::ReadMapOfStrings(seriesUidMap_, serialized, SERIES_UID_MAP);
+    origin_ = DicomInstanceOrigin(serialized[ORIGIN]);
+  }
+
+  
+  bool MergeStudyJob::Serialize(Json::Value& target)
+  {
+    if (!SetOfInstancesJob::Serialize(target))
+    {
+      return false;
+    }
+    else
+    {
+      target[KEEP_SOURCE] = keepSource_;
+      target[TARGET_STUDY] = targetStudy_;
+      SerializationToolbox::WriteMapOfTags(target, replacements_, REPLACEMENTS);
+      SerializationToolbox::WriteSetOfTags(target, removals_, REMOVALS);
+      SerializationToolbox::WriteMapOfStrings(target, seriesUidMap_, SERIES_UID_MAP);
+      origin_.Serialize(target[ORIGIN]);
+
+      return true;
+    }
+  }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/ServerJobs/MergeStudyJob.h	Tue Oct 02 17:05:36 2018 +0200
@@ -0,0 +1,115 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * 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 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * 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, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include "../../Core/JobsEngine/SetOfInstancesJob.h"
+
+#include "../ServerContext.h"
+
+namespace Orthanc
+{
+  class MergeStudyJob : public SetOfInstancesJob
+  {
+  private:
+    typedef std::map<std::string, std::string>  SeriesUidMap;
+    typedef std::map<DicomTag, std::string>     Replacements;
+    
+    
+    ServerContext&         context_;
+    bool                   keepSource_;
+    std::string            targetStudy_;
+    Replacements           replacements_;
+    std::set<DicomTag>     removals_;
+    SeriesUidMap           seriesUidMap_;
+    DicomInstanceOrigin    origin_;
+
+
+    void AddSourceSeriesInternal(const std::string& series);
+
+    void AddSourceStudyInternal(const std::string& study);
+
+
+  protected:
+    virtual bool HandleInstance(const std::string& instance);
+
+    virtual bool HandleTrailingStep();
+    
+  public:
+    MergeStudyJob(ServerContext& context,
+                  const std::string& targetStudy);
+
+    MergeStudyJob(ServerContext& context,
+                  const Json::Value& serialized);
+
+    const std::string& GetTargetStudy() const
+    {
+      return targetStudy_;
+    }
+
+    void AddSource(const std::string& studyOrSeries);
+
+    void AddSourceStudy(const std::string& study);
+
+    void AddSourceSeries(const std::string& series);
+
+    bool IsKeepSource() const
+    {
+      return keepSource_;
+    }
+    
+    void SetKeepSource(bool keep);
+
+    void SetOrigin(const DicomInstanceOrigin& origin);
+
+    void SetOrigin(const RestApiCall& call);
+
+    const DicomInstanceOrigin& GetOrigin() const
+    {
+      return origin_;
+    }
+
+    virtual void Stop(JobStopReason reason)
+    {
+    }
+
+    virtual void GetJobType(std::string& target)
+    {
+      target = "MergeStudy";
+    }
+
+    virtual void GetPublicContent(Json::Value& value);
+
+    virtual bool Serialize(Json::Value& target);
+  };
+}

--- a/OrthancServer/ServerJobs/OrthancJobUnserializer.cpp	Tue Oct 02 15:54:36 2018 +0200
+++ b/OrthancServer/ServerJobs/OrthancJobUnserializer.cpp	Tue Oct 02 17:05:36 2018 +0200
@@ -48,6 +48,7 @@
 #include "DicomModalityStoreJob.h"
 #include "OrthancPeerStoreJob.h"
 #include "ResourceModificationJob.h"
+#include "MergeStudyJob.h"
 #include "SplitStudyJob.h"
 
 namespace Orthanc
@@ -79,6 +80,10 @@
     {
       return new ResourceModificationJob(context_, source);
     }
+    else if (type == "MergeStudy")
+    {
+      return new MergeStudyJob(context_, source);
+    }
     else if (type == "SplitStudy")
     {
       return new SplitStudyJob(context_, source);

--- a/UnitTestsSources/MultiThreadingTests.cpp	Tue Oct 02 15:54:36 2018 +0200
+++ b/UnitTestsSources/MultiThreadingTests.cpp	Tue Oct 02 17:05:36 2018 +0200
@@ -61,6 +61,7 @@
 
 #include "../OrthancServer/ServerJobs/ArchiveJob.h"
 #include "../OrthancServer/ServerJobs/DicomModalityStoreJob.h"
+#include "../OrthancServer/ServerJobs/MergeStudyJob.h"
 #include "../OrthancServer/ServerJobs/OrthancPeerStoreJob.h"
 #include "../OrthancServer/ServerJobs/ResourceModificationJob.h"
 #include "../OrthancServer/ServerJobs/SplitStudyJob.h"
@@ -1561,19 +1562,31 @@
 
   // SplitStudyJob
 
-  std::string id;
-  ASSERT_TRUE(CreateInstance(id));
+  std::string instance;
+  ASSERT_TRUE(CreateInstance(instance));
 
   std::string study, series;
 
   {
-    ServerContext::DicomCacheLocker lock(GetContext(), id);
+    ServerContext::DicomCacheLocker lock(GetContext(), instance);
     study = lock.GetDicom().GetHasher().HashStudy();
     series = lock.GetDicom().GetHasher().HashSeries();
   }
 
   {
-    std::string a, b, c;
+    std::list<std::string> tmp;
+    GetContext().GetIndex().GetAllUuids(tmp, ResourceType_Study);
+    ASSERT_EQ(1u, tmp.size());
+    ASSERT_EQ(study, tmp.front());
+    GetContext().GetIndex().GetAllUuids(tmp, ResourceType_Series);
+    ASSERT_EQ(1u, tmp.size());
+    ASSERT_EQ(series, tmp.front());
+  }
+
+  std::string study2;
+
+  {
+    std::string a, b;
 
     {
       ASSERT_THROW(SplitStudyJob(GetContext(), std::string("nope")), OrthancException);
@@ -1596,8 +1609,8 @@
       ASSERT_EQ(JobStepCode_Continue, job.Step().GetCode());
       ASSERT_EQ(JobStepCode_Success, job.Step().GetCode());
 
-      c = job.GetTargetStudy();
-      ASSERT_FALSE(c.empty());
+      study2 = job.GetTargetStudy();
+      ASSERT_FALSE(study2.empty());
 
       ASSERT_TRUE(CheckIdempotentSetOfInstances(unserializer, job));
       ASSERT_TRUE(job.Serialize(s));
@@ -1614,7 +1627,7 @@
       ASSERT_EQ(RequestOrigin_Lua, tmp.GetOrigin().GetRequestOrigin());
 
       std::string s;
-      ASSERT_EQ(c, tmp.GetTargetStudy());
+      ASSERT_EQ(study2, tmp.GetTargetStudy());
       ASSERT_FALSE(tmp.LookupTargetSeriesUid(s, "nope"));
       ASSERT_TRUE(tmp.LookupTargetSeriesUid(s, series));
       ASSERT_EQ(b, s);
@@ -1626,6 +1639,55 @@
       ASSERT_TRUE(tmp.IsRemoved(DICOM_TAG_PATIENT_BIRTH_DATE));
     }
   }
+
+  {
+    std::list<std::string> tmp;
+    GetContext().GetIndex().GetAllUuids(tmp, ResourceType_Study);
+    ASSERT_EQ(2u, tmp.size());
+    GetContext().GetIndex().GetAllUuids(tmp, ResourceType_Series);
+    ASSERT_EQ(2u, tmp.size());
+  }
+
+  // MergeStudyJob
+
+  {
+    ASSERT_THROW(SplitStudyJob(GetContext(), std::string("nope")), OrthancException);
+
+    MergeStudyJob job(GetContext(), study);
+    job.SetKeepSource(true);
+    job.AddSource(study2);
+    ASSERT_THROW(job.AddSourceSeries("nope"), OrthancException);
+    ASSERT_THROW(job.AddSourceStudy("nope"), OrthancException);
+    ASSERT_THROW(job.AddSource("nope"), OrthancException);
+    job.SetOrigin(DicomInstanceOrigin::FromLua());
+    
+    ASSERT_EQ(job.GetTargetStudy(), study);
+
+    job.Start();
+    ASSERT_EQ(JobStepCode_Continue, job.Step().GetCode());
+    ASSERT_EQ(JobStepCode_Success, job.Step().GetCode());
+
+    ASSERT_TRUE(CheckIdempotentSetOfInstances(unserializer, job));
+    ASSERT_TRUE(job.Serialize(s));
+  }
+
+  {
+    std::list<std::string> tmp;
+    GetContext().GetIndex().GetAllUuids(tmp, ResourceType_Study);
+    ASSERT_EQ(2u, tmp.size());
+    GetContext().GetIndex().GetAllUuids(tmp, ResourceType_Series);
+    ASSERT_EQ(3u, tmp.size());
+  }
+
+  {
+    std::auto_ptr<IJob> job;
+    job.reset(unserializer.UnserializeJob(s));
+
+    MergeStudyJob& tmp = dynamic_cast<MergeStudyJob&>(*job);
+    ASSERT_TRUE(tmp.IsKeepSource());
+    ASSERT_EQ(study, tmp.GetTargetStudy());
+    ASSERT_EQ(RequestOrigin_Lua, tmp.GetOrigin().GetRequestOrigin());
+  }
 }