Support multi-channel Context.

Make the test configurable.
Other modifications.

11 files changed, 364 insertions, 175 deletions

diff --git a/src/gpg/GpgContext.cpp b/src/gpg/GpgContext.cpp
index a8c9a6de..c1911a17 100644
--- a/src/gpg/GpgContext.cpp
+++ b/src/gpg/GpgContext.cpp
@@ -23,9 +23,13 @@
  */
 
 #include "gpg/GpgContext.h"
-#include "GpgConstants.h"
 
+#include <gpg-error.h>
+#include <gpgme.h>
 #include <functional>
+#include <string>
+
+#include "GpgConstants.h"
 
 #ifdef _WIN32
 #include <windows.h>
@@ -39,7 +43,10 @@ namespace GpgFrontend {
  * Constructor
  *  Set up gpgme-context, set paths to app-run path
  */
-GpgContext::GpgContext() {
+GpgContext::GpgContext(bool independent_database,
+                       std::string db_path,
+                       int channel)
+    : SingletonFunctionObject<GpgContext>(channel) {
   static bool _first = true;
 
   if (_first) {
@@ -57,25 +64,26 @@ GpgContext::GpgContext() {
   check_gpg_error(gpgme_new(&_p_ctx));
   _ctx_ref = CtxRefHandler(_p_ctx);
 
-  LOG(INFO) << "GpgContext _ctx_ref Created";
+  DLOG(INFO) << "GpgContext _ctx_ref Created";
 
   auto engineInfo = gpgme_ctx_get_engine_info(*this);
 
-  LOG(INFO) << "GpgContext gpgme_ctx_get_engine_info Called";
+  DLOG(INFO) << "GpgContext gpgme_ctx_get_engine_info Called";
 
   // Check ENV before running
   bool check_pass = false, find_openpgp = false, find_gpgconf = false,
        find_assuan = false, find_cms = false;
   while (engineInfo != nullptr) {
-    LOG(INFO) << gpgme_get_protocol_name(engineInfo->protocol) << " "
-              << engineInfo->file_name << " " << engineInfo->version;
+    DLOG(INFO) << gpgme_get_protocol_name(engineInfo->protocol) << " "
+               << engineInfo->file_name << " " << engineInfo->version;
 
     if (engineInfo->protocol == GPGME_PROTOCOL_GPGCONF &&
         strcmp(engineInfo->version, "1.0.0") != 0)
       find_gpgconf = true;
     if (engineInfo->protocol == GPGME_PROTOCOL_OpenPGP &&
         strcmp(engineInfo->version, "1.0.0") != 0)
-      find_openpgp = true, info.AppPath = engineInfo->file_name;
+      find_openpgp = true, info.AppPath = engineInfo->file_name,
+      info.DatabasePath = "default";
     if (engineInfo->protocol == GPGME_PROTOCOL_CMS &&
         strcmp(engineInfo->version, "1.0.0") != 0)
       find_cms = true;
@@ -87,11 +95,21 @@ GpgContext::GpgContext() {
   if (find_gpgconf && find_openpgp && find_cms && find_assuan)
     check_pass = true;
 
-  LOG(INFO) << "GpgContext check_pass " << check_pass;
+  DLOG(INFO) << "GpgContext check_pass " << check_pass;
   if (!check_pass) {
     good_ = false;
     return;
   } else {
+    // Set Independent Database
+    if (independent_database) {
+      info.DatabasePath = db_path;
+      auto err = gpgme_ctx_set_engine_info(
+          _ctx_ref.get(), GPGME_PROTOCOL_OpenPGP, info.AppPath.c_str(),
+          info.DatabasePath.c_str());
+      assert(check_gpg_error_2_err_code(err) == GPG_ERR_NO_ERROR);
+      DLOG(INFO) << "Set independent_database path" << db_path;
+    }
+
     /** Setting the output type must be done at the beginning */
     /** think this means ascii-armor --> ? */
     gpgme_set_armor(*this, 1);
@@ -104,6 +122,7 @@ GpgContext::GpgContext() {
                    GPGME_KEYLIST_MODE_WITH_TOFU));
     good_ = true;
   }
+  DLOG(INFO) << "GpgContext init done ";
 }
 
 bool GpgContext::good() const {
diff --git a/src/gpg/GpgContext.h b/src/gpg/GpgContext.h
index 21fb5aee..0aa41f2f 100644
--- a/src/gpg/GpgContext.h
+++ b/src/gpg/GpgContext.h
@@ -35,21 +35,22 @@ namespace GpgFrontend {
  * Custom Encapsulation of GpgME APIs
  */
 class GpgContext : public SingletonFunctionObject<GpgContext> {
-
-public:
-  GpgContext();
+ public:
+  GpgContext(bool independent_database = false,
+             std::string path = std::string(),
+             int channel = 0);
 
   ~GpgContext() override = default;
 
   [[nodiscard]] bool good() const;
 
-  [[nodiscard]] const GpgInfo &GetInfo() const { return info; }
+  [[nodiscard]] const GpgInfo& GetInfo() const { return info; }
 
   static std::string getGpgmeVersion();
 
   operator gpgme_ctx_t() const { return _ctx_ref.get(); }
 
-private:
+ private:
   GpgInfo info;
 
   struct _ctx_ref_deletor {
@@ -59,17 +60,17 @@ private:
     }
   };
 
-  using CtxRefHandler =
-      std::unique_ptr<struct gpgme_context, _ctx_ref_deletor>;
+  using CtxRefHandler = std::unique_ptr<struct gpgme_context, _ctx_ref_deletor>;
   CtxRefHandler _ctx_ref = nullptr;
 
   bool good_ = true;
 
-public:
-  static gpgme_error_t test_passphrase_cb(void *opaque, const char *uid_hint,
-                                          const char *passphrase_info,
-                                          int last_was_bad, int fd) {
-
+ public:
+  static gpgme_error_t test_passphrase_cb(void* opaque,
+                                          const char* uid_hint,
+                                          const char* passphrase_info,
+                                          int last_was_bad,
+                                          int fd) {
     LOG(INFO) << "test_passphrase_cb Called";
     size_t res;
     char pass[] = "abcdefg\n";
@@ -82,7 +83,7 @@ public:
     (void)last_was_bad;
 
     do {
-        res = gpgme_io_write(fd, &pass[off], pass_len - off);
+      res = gpgme_io_write(fd, &pass[off], pass_len - off);
       if (res > 0)
         off += res;
     } while (res > 0 && off != pass_len);
@@ -92,6 +93,6 @@ public:
 
   void SetPassphraseCb(decltype(test_passphrase_cb) func) const;
 };
-} // namespace GpgFrontend
+}  // namespace GpgFrontend
 
-#endif // __SGPGMEPP_CONTEXT_H__
+#endif  // __SGPGMEPP_CONTEXT_H__
diff --git a/src/gpg/GpgFunctionObject.h b/src/gpg/GpgFunctionObject.h
index 654f81d3..cb55cf92 100644
--- a/src/gpg/GpgFunctionObject.h
+++ b/src/gpg/GpgFunctionObject.h
@@ -25,44 +25,121 @@
 #ifndef GPGFRONTEND_ZH_CN_TS_FUNCTIONOBJECT_H
 #define GPGFRONTEND_ZH_CN_TS_FUNCTIONOBJECT_H
 
+#include <map>
 #include <memory>
 #include <mutex>
+#include <shared_mutex>
+#include <stdexcept>
+#include <string>
 
 #include <easyloggingpp/easylogging++.h>
 
 namespace GpgFrontend {
-template <typename T> class SingletonFunctionObject {
-public:
-  static T &GetInstance() {
-    LOG(INFO) << "SingletonFunctionObject GetInstance Calling "
-              << typeid(T).name();
-    std::lock_guard<std::mutex> guard(_instance_mutex);
-    if (_instance == nullptr)
-      _instance = std::make_unique<T>();
-    return *_instance;
+
+template <typename T>
+class SingletonFunctionObject {
+ public:
+  static T& GetInstance(int channel = 0) {
+    DLOG(INFO) << "SingletonFunctionObject GetInstance Calling "
+               << typeid(T).name() << " channel " << channel;
+    if (!channel) {
+      std::lock_guard<std::mutex> guard(_instance_mutex);
+      if (_instance == nullptr)
+        _instance = std::make_unique<T>();
+      return *_instance;
+    } else {
+      // read _instances_map
+      decltype(_instances_map.end()) _it;
+      {
+        std::shared_lock lock(_instances_mutex);
+        _it = _instances_map.find(channel);
+      }
+      if (_it != _instances_map.end())
+        return *_it->second;
+      else
+        return CreateInstance(channel);
+    }
   }
 
-  SingletonFunctionObject(T &&) = delete;
+  static T& CreateInstance(int channel, std::unique_ptr<T> p_obj = nullptr) {
+    DLOG(INFO) << "SingletonFunctionObject CreateInstance Calling "
+               << typeid(T).name() << " channel " << channel;
+    if (!channel)
+      return *_instance;
+
+    // read _instances_map
+    decltype(_instances_map.end()) _it;
+    {
+      std::shared_lock lock(_instances_mutex);
+      _it = _instances_map.find(channel);
+    }
+    if (_it == _instances_map.end()) {
+      {
+        std::lock_guard<std::mutex> guard(_default_channel_mutex);
+        int tmp = channel;
+        std::swap(_default_channel, tmp);
+        if (p_obj == nullptr)
+          p_obj = std::make_unique<T>();
+        std::swap(_default_channel, tmp);
+      }
+      T* obj = p_obj.get();
+
+      // change _instances_map
+      {
+        std::unique_lock lock(_instances_mutex);
+        _instances_map.insert({channel, std::move(p_obj)});
+      }
+      return *obj;
+    } else {
+      return *_it->second;
+    }
+  }
+
+  static int GetDefaultChannel() { return _default_channel; }
+
+  int GetChannel() const { return channel_; }
+
+  SingletonFunctionObject(T&&) = delete;
+
+  SingletonFunctionObject(const T&) = delete;
 
-  SingletonFunctionObject(const T &) = delete;
+  void operator=(const T&) = delete;
 
-  void operator=(const T &) = delete;
+ protected:
+  SingletonFunctionObject() {}
 
-protected:
-  SingletonFunctionObject() = default;
+  SingletonFunctionObject(int channel) : channel_(channel) {}
 
   virtual ~SingletonFunctionObject() = default;
 
-private:
+ private:
+  int channel_ = _default_channel;
+  static int _default_channel;
+  static std::mutex _default_channel_mutex;
   static std::mutex _instance_mutex;
+  static std::shared_mutex _instances_mutex;
   static std::unique_ptr<T> _instance;
+  static std::map<int, std::unique_ptr<T>> _instances_map;
 };
 
-template <typename T> std::mutex SingletonFunctionObject<T>::_instance_mutex;
+template <typename T>
+int SingletonFunctionObject<T>::_default_channel = 0;
+
+template <typename T>
+std::mutex SingletonFunctionObject<T>::_default_channel_mutex;
+
+template <typename T>
+std::mutex SingletonFunctionObject<T>::_instance_mutex;
+
+template <typename T>
+std::shared_mutex SingletonFunctionObject<T>::_instances_mutex;
 
 template <typename T>
 std::unique_ptr<T> SingletonFunctionObject<T>::_instance = nullptr;
 
-} // namespace GpgFrontend
+template <typename T>
+std::map<int, std::unique_ptr<T>> SingletonFunctionObject<T>::_instances_map;
+
+}  // namespace GpgFrontend
 
-#endif // GPGFRONTEND_ZH_CN_TS_FUNCTIONOBJECT_H
+#endif  // GPGFRONTEND_ZH_CN_TS_FUNCTIONOBJECT_H
diff --git a/src/gpg/function/GpgKeyGetter.cpp b/src/gpg/function/GpgKeyGetter.cpp
index 6d80088a..ab907ea7 100644
--- a/src/gpg/function/GpgKeyGetter.cpp
+++ b/src/gpg/function/GpgKeyGetter.cpp
@@ -32,6 +32,7 @@ GpgFrontend::GpgKey GpgFrontend::GpgKeyGetter::GetKey(const std::string& fpr) {
   gpgme_get_key(ctx, fpr.c_str(), &_p_key, 1);
   if (_p_key == nullptr)
     DLOG(WARNING) << "GpgKeyGetter GetKey _p_key Null";
+  assert(_p_key != nullptr);
   return GpgKey(std::move(_p_key));
 }
 
diff --git a/src/gpg/function/GpgKeyGetter.h b/src/gpg/function/GpgKeyGetter.h
index 3a291d2d..af22e2f2 100644
--- a/src/gpg/function/GpgKeyGetter.h
+++ b/src/gpg/function/GpgKeyGetter.h
@@ -32,19 +32,19 @@
 namespace GpgFrontend {
 
 class GpgKeyGetter : public SingletonFunctionObject<GpgKeyGetter> {
+ public:
+  GpgKeyGetter() = default;
 
-public:
-  GpgKey GetKey(const std::string &fpr);
+  GpgKey GetKey(const std::string& fpr);
 
-  GpgKey GetPubkey(const std::string &fpr);
+  GpgKey GetPubkey(const std::string& fpr);
 
   KeyListPtr FetchKey();
 
-  GpgKeyGetter() = default;
-
-private:
-  GpgContext &ctx = GpgContext::GetInstance();
+ private:
+  GpgContext& ctx =
+      GpgContext::GetInstance(SingletonFunctionObject::GetDefaultChannel());
 };
-} // namespace GpgFrontend
+}  // namespace GpgFrontend
 
-#endif // GPGFRONTEND_ZH_CN_TS_GPGKEYGETTER_H
+#endif  // GPGFRONTEND_ZH_CN_TS_GPGKEYGETTER_H
diff --git a/src/gpg/function/GpgKeyImportExportor.cpp b/src/gpg/function/GpgKeyImportExportor.cpp
index 2ee261b4..7a7af4c7 100644
--- a/src/gpg/function/GpgKeyImportExportor.cpp
+++ b/src/gpg/function/GpgKeyImportExportor.cpp
@@ -1,32 +1,62 @@
+/**
+ * This file is part of GPGFrontend.
+ *
+ * GPGFrontend 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.
+ *
+ * Foobar 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 Foobar.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The initial version of the source code is inherited from gpg4usb-team.
+ * Their source code version also complies with GNU General Public License.
+ *
+ * The source code version of this software was modified and released
+ * by Saturneric<[email protected]> starting on May 12, 2021.
+ *
+ */
+
 #include "gpg/function/GpgKeyImportExportor.h"
+
 #include "GpgConstants.h"
-#include <gpg-error.h>
 
 /**
  * Import key pair
  * @param inBuffer input byte array
  * @return Import information
  */
-GpgFrontend::GpgImportInformation
-GpgFrontend::GpgKeyImportExportor::ImportKey(StdBypeArrayPtr in_buffer) {
-  LOG(INFO) << "ImportKey Called in_buffer Size " << in_buffer->size();
+GpgFrontend::GpgImportInformation GpgFrontend::GpgKeyImportExportor::ImportKey(
+    StdBypeArrayPtr in_buffer) {
+  DLOG(INFO) << "ImportKey called in_buffer Size " << in_buffer->size();
+
+  if (in_buffer->empty())
+    return GpgImportInformation();
+
   GpgData data_in(in_buffer->data(), in_buffer->size());
+  DLOG(INFO) << "ImportKey gpgme_op_import";
   auto err = check_gpg_error(gpgme_op_import(ctx, data_in));
   assert(gpgme_err_code(err) == GPG_ERR_NO_ERROR);
   gpgme_import_result_t result;
-
+  DLOG(INFO) << "ImportKey gpgme_op_import_result";
   result = gpgme_op_import_result(ctx);
   gpgme_import_status_t status = result->imports;
   auto import_info = std::make_unique<GpgImportInformation>(result);
-  LOG(INFO) << "ImportKey import_information " << result->not_imported << " "
-            << result->imported << " " << result->considered;
+  DLOG(INFO) << "ImportKey import_information " << result->not_imported << " "
+             << result->imported << " " << result->considered;
   while (status != nullptr) {
     GpgImportedKey key;
     key.import_status = static_cast<int>(status->status);
     key.fpr = status->fpr;
     import_info->importedKeys.emplace_back(key);
     status = status->next;
-    LOG(INFO) << "ImportKey Fpr " << key.fpr << " Status " << key.import_status;
+    DLOG(INFO) << "ImportKey Fpr " << key.fpr << " Status "
+               << key.import_status;
   }
   return *import_info;
 }
@@ -38,7 +68,8 @@ GpgFrontend::GpgKeyImportExportor::ImportKey(StdBypeArrayPtr in_buffer) {
  * @return if success
  */
 bool GpgFrontend::GpgKeyImportExportor::ExportKeys(
-    KeyIdArgsListPtr &uid_list, BypeArrayPtr &out_buffer) const {
+    KeyIdArgsListPtr& uid_list,
+    BypeArrayPtr& out_buffer) const {
   if (uid_list->empty())
     return false;
 
@@ -49,8 +80,8 @@ bool GpgFrontend::GpgKeyImportExportor::ExportKeys(
     auto err = gpgme_op_export(ctx, (*uid_list)[i].c_str(), 0, data_out);
     assert(gpgme_err_code(err) == GPG_ERR_NO_ERROR);
 
-    LOG(INFO) << "exportKeys read_bytes"
-              << gpgme_data_seek(data_out, 0, SEEK_END);
+    DLOG(INFO) << "exportKeys read_bytes"
+               << gpgme_data_seek(data_out, 0, SEEK_END);
 
     auto temp_out_buffer = data_out.Read2Buffer();
     std::swap(out_buffer, temp_out_buffer);
@@ -66,9 +97,10 @@ bool GpgFrontend::GpgKeyImportExportor::ExportKeys(
  * @return if success
  */
 bool GpgFrontend::GpgKeyImportExportor::ExportKeys(
-    KeyArgsList &keys, BypeArrayPtr &out_buffer) const {
+    KeyArgsList& keys,
+    BypeArrayPtr& out_buffer) const {
   KeyIdArgsListPtr key_ids = std::make_unique<std::vector<std::string>>();
-  for (const auto &key : keys)
+  for (const auto& key : keys)
     key_ids->push_back(key.id());
   return ExportKeys(key_ids, out_buffer);
 }
@@ -80,9 +112,9 @@ bool GpgFrontend::GpgKeyImportExportor::ExportKeys(
  * @return if successful
  */
 bool GpgFrontend::GpgKeyImportExportor::ExportSecretKey(
-    const GpgKey &key, BypeArrayPtr out_buffer) const {
-
-  LOG(INFO) << "Export Secret Key" << key.id().c_str();
+    const GpgKey& key,
+    BypeArrayPtr out_buffer) const {
+  DLOG(INFO) << "Export Secret Key" << key.id().c_str();
 
   gpgme_key_t target_key[2] = {gpgme_key_t(key), nullptr};
 
diff --git a/src/gpg/function/GpgKeyImportExportor.h b/src/gpg/function/GpgKeyImportExportor.h
index 455e59f8..2cdb4e80 100644
--- a/src/gpg/function/GpgKeyImportExportor.h
+++ b/src/gpg/function/GpgKeyImportExportor.h
@@ -25,6 +25,7 @@
 #ifndef _GPGKEYIMPORTEXPORTOR_H
 #define _GPGKEYIMPORTEXPORTOR_H
 
+#include <string>
 #include "gpg/GpgConstants.h"
 #include "gpg/GpgContext.h"
 #include "gpg/GpgFunctionObject.h"
@@ -33,7 +34,7 @@
 namespace GpgFrontend {
 
 class GpgImportedKey {
-public:
+ public:
   std::string fpr;
   int import_status;
 };
@@ -41,7 +42,7 @@ public:
 typedef std::list<GpgImportedKey> GpgImportedKeyList;
 
 class GpgImportInformation {
-public:
+ public:
   GpgImportInformation() = default;
 
   explicit GpgImportInformation(gpgme_import_result_t result) {
@@ -93,19 +94,20 @@ public:
 
 class GpgKeyImportExportor
     : public SingletonFunctionObject<GpgKeyImportExportor> {
-public:
+ public:
   GpgImportInformation ImportKey(StdBypeArrayPtr inBuffer);
 
-  bool ExportKeys(KeyIdArgsListPtr &uid_list, BypeArrayPtr &out_buffer) const;
+  bool ExportKeys(KeyIdArgsListPtr& uid_list, BypeArrayPtr& out_buffer) const;
 
-  bool ExportKeys(KeyArgsList &keys, BypeArrayPtr &outBuffer) const;
+  bool ExportKeys(KeyArgsList& keys, BypeArrayPtr& outBuffer) const;
 
-  bool ExportSecretKey(const GpgKey &key, BypeArrayPtr outBuffer) const;
+  bool ExportSecretKey(const GpgKey& key, BypeArrayPtr outBuffer) const;
 
-private:
-  GpgContext &ctx = GpgContext::GetInstance();
+ private:
+  GpgContext& ctx =
+      GpgContext::GetInstance(SingletonFunctionObject::GetDefaultChannel());
 };
 
-} // namespace GpgFrontend
+}  // namespace GpgFrontend
 
-#endif // _GPGKEYIMPORTEXPORTOR_H
\ No newline at end of file
+#endif  // _GPGKEYIMPORTEXPORTOR_H
\ No newline at end of file
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 4e223f63..8a5859f4 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -2,6 +2,7 @@ find_package(GTest REQUIRED)
 
 # Set configure for test
 file(COPY ${CMAKE_SOURCE_DIR}/test/conf DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/ FOLLOW_SYMLINK_CHAIN)
+file(COPY ${CMAKE_SOURCE_DIR}/test/data DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/ FOLLOW_SYMLINK_CHAIN)
 
 aux_source_directory(. TEST_SOURCE)
 
diff --git a/test/GpgCoreTest.cpp b/test/GpgCoreTest.cpp
index 51510e9e..7705e8b0 100644
--- a/test/GpgCoreTest.cpp
+++ b/test/GpgCoreTest.cpp
@@ -28,7 +28,12 @@
 #include <gtest/gtest.h>
 #include <boost/date_time/gregorian/parsers.hpp>
 #include <boost/dll.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/path.hpp>
+#include <fstream>
 #include <memory>
+#include <string>
+#include <vector>
 
 #include "gpg/GpgConstants.h"
 #include "gpg/function/GpgKeyGetter.h"
@@ -38,97 +43,19 @@
 TEST(GpgKeyTest, GpgCoreTest) {}
 class GpgCoreTest : public ::testing::Test {
  protected:
-  GpgFrontend::StdBypeArrayPtr secret_key_ = std::make_unique<std::string>(
-      "-----BEGIN PGP PRIVATE KEY BLOCK-----\n"
-      "lQVYBGE0XVEBDADHYmnEbRB8hxqyQmaLmIRU71PTMZc162qWoWTMaPd7a8gQcQwc"
-      "MUFYHp3mAmoHYUAKyT0lgpyj7UqGDdiAOt8z+nW6tR2Wu2xe6o0su/oK8qGtX37e"
-      "bexiWcsMftrk/uR+l2G7JcCKMTAszLbyDgg1IaJ/SaVicKaO1CRjD5ZlNa2IQVOG"
-      "bw0va1CevF6yw5rvc5r300p/kwcKX4taUyPaCT10ZxZnpZUhdsAIX5DfvWURoZ0q"
-      "jy4JdQFlufhPzSJZ2VoCXn37FeXwEz1Vm8VzyVV70pPWN5osMcNBsRO4nr8cYIxo"
-      "1PiErm3VdDUHPZ8dKKMlrLaGh3De3ohK47GSLDqBGg/FNnekRwNqBT+HLvfk5Kko"
-      "lNsC7eyRSagI7IRY+KgjKNpT/9QUGYP9llTonQ2V58XarDFDy8SU/3yOqWaeu0Op"
-      "A/fpqkp7JF3mGLXzKOZ4ueEOMkh+DsAOPTOQTcbYvnCz8jvHUPlSUqU1Y/7xU6BW"
-      "rzgqajU563xoxCMAEQEAAQAL/2IGy5NsP8fJsOFlbf9B/AW6KM9TuVEkLiJitSke"
-      "jlZa1mDnA5o0yTimzODR3QlF0fO7ntl7TsH1n0crNX9N8oEeqZUjCKob+Zrs3H3a"
-      "6YNKaRzRL5HyH173YLIDCGG/w91NVhpp5DDNIC9WcretGHHu2HKWZb5xPiJIwJ8H"
-      "gdy+uFOeMo+Mt8HRlDCG0lQ3gUwq3Uzsz9rLEZITCXNeHulK07EQId7RdPGf7afw"
-      "PE0UU8WIXLoY7PxvT0GRXjj11AheEGNHcebirHbgbLWoevY/+h+r/yAdRns+S2l+"
-      "PsShh6ki8bH7InI7L79v+021l89FfTZYixwscvwLBN4QWp6FLwqwDJjEHnZRxjCX"
-      "Y5v7j9gHhhyK2vNbwU1vx/drx/cllIHfYOVRoZtxaAnfW0u51x/uKTknHBoL1GvW"
-      "zrJHLMC4cHuPYAR6vS5sy7QcqVeB709mrTNVGHa0w6u4U8mlxpIQ/izdxy9k2sgV"
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-      "ZHz67G9t1qso7IH0SksB0dSpxwhs645rG605DlJKnUHgtwE46nnwR22YolcTbTCh"
-      "tKmdMppPdabbL1gI/I+Jmh6Z+UDDKbl7uUKrz5vua/gxfySFqmNvcKO1ocjbKDcf"
-      "cqEh8fyKWtmiXrW2zzlszJVGJrpXDDpzgP7ZELGxhfZYFi8rMrSVKDwrpFZBSWMG"
-      "T2R+xoMRGcJJphKWpVjZ"
-      "=u+uG"
-      "\n-----END PGP PRIVATE KEY BLOCK-----\n");
+  std::vector<GpgFrontend::StdBypeArrayPtr> secret_keys_;
+
+  boost::filesystem::path parent_path =
+      boost::dll::program_location().parent_path();
+
+  boost::filesystem::path config_path = parent_path / "conf" / "core.cfg";
 
   GpgCoreTest() = default;
 
   virtual ~GpgCoreTest() = default;
 
   virtual void SetUp() {
-    auto config_path =
-        boost::dll::program_location().parent_path() / "conf" / "core.cfg";
-
+    DLOG(INFO) << "SetUp called";
     using namespace libconfig;
     Config cfg;
     ASSERT_NO_THROW(cfg.readFile(config_path.c_str()));
@@ -137,12 +64,53 @@ class GpgCoreTest : public ::testing::Test {
     ASSERT_TRUE(root.exists("independent_database"));
     bool independent_database = true;
     ASSERT_TRUE(root.lookupValue("independent_database", independent_database));
-    if (independent_database)
 
-      GpgFrontend::GpgContext::GetInstance().SetPassphraseCb(
-          GpgFrontend::GpgContext::test_passphrase_cb);
-    GpgFrontend::GpgKeyImportExportor::GetInstance().ImportKey(
-        std::move(this->secret_key_));
+    DLOG(INFO) << "SetUp independent_database";
+    if (independent_database) {
+      ASSERT_TRUE(root.exists("independent_db_path"));
+      std::string relative_db_path;
+
+      ASSERT_TRUE(root.lookupValue("independent_db_path", relative_db_path));
+
+      auto db_path = parent_path / relative_db_path;
+      if (!boost::filesystem::exists(db_path)) {
+        boost::filesystem::create_directory(db_path);
+      }
+
+      DLOG(INFO) << "GpgFrontend::GpgContext::CreateInstance";
+      GpgFrontend::GpgContext::CreateInstance(
+          1, std::make_unique<GpgFrontend::GpgContext>(true, db_path.c_str()));
+      DLOG(INFO) << "db_path " << db_path;
+    }
+
+    ASSERT_TRUE(root.exists("data_path"));
+    std::string relative_data_path;
+    ASSERT_TRUE(root.lookupValue("data_path", relative_data_path));
+    auto data_path = parent_path / relative_data_path;
+    ASSERT_TRUE(boost::filesystem::exists(data_path));
+
+    if (root.exists("load_keys.private_keys")) {
+      LOG(INFO) << "loading private keys";
+      auto& private_keys = root.lookup("load_keys.private_keys");
+      for (auto it = private_keys.begin(); it != private_keys.end(); it++) {
+        ASSERT_TRUE(it->exists("filename"));
+        std::string filename;
+        it->lookupValue("filename", filename);
+        auto data_file_path = data_path / filename;
+        DLOG(INFO) << "private file path" << data_file_path.string();
+        std::string data =
+            GpgFrontend::read_all_data_in_file(data_file_path.string());
+        secret_keys_.push_back(std::make_unique<std::string>(data));
+      }
+      LOG(INFO) << "loaded private keys";
+    }
+
+    GpgFrontend::GpgContext::GetInstance(1).SetPassphraseCb(
+        GpgFrontend::GpgContext::test_passphrase_cb);
+    for (auto& secret_key : secret_keys_) {
+      GpgFrontend::GpgKeyImportExportor::GetInstance(1).ImportKey(
+          std::move(secret_key));
+    }
   }
 
   virtual void TearDown() {}
@@ -154,7 +122,11 @@ class GpgCoreTest : public ::testing::Test {
 };
 
 TEST_F(GpgCoreTest, CoreInitTest) {
-  auto& ctx = GpgFrontend::GpgContext::GetInstance();
+  auto& ctx = GpgFrontend::GpgContext::GetInstance(1);
+  DLOG(INFO) << "CoreInitTest ctx DatabasePath " << ctx.GetInfo().DatabasePath;
+  auto& ctx_default = GpgFrontend::GpgContext::GetInstance();
+  DLOG(INFO) << "CoreInitTest ctx_default DatabasePath "
+             << ctx_default.GetInfo().DatabasePath;
   ASSERT_TRUE(ctx.good());
 }
 
@@ -171,7 +143,7 @@ TEST_F(GpgCoreTest, GpgDataTest) {
 }
 
 TEST_F(GpgCoreTest, GpgKeyTest) {
-  auto key = GpgFrontend::GpgKeyGetter::GetInstance().GetKey(
+  auto key = GpgFrontend::GpgKeyGetter::GetInstance(1).GetKey(
       "9490795B78F8AFE9F93BD09281704859182661FB");
   ASSERT_TRUE(key.good());
   ASSERT_TRUE(key.is_private_key());
@@ -214,7 +186,7 @@ TEST_F(GpgCoreTest, GpgKeyTest) {
 }
 
 TEST_F(GpgCoreTest, GpgSubKeyTest) {
-  auto key = GpgFrontend::GpgKeyGetter::GetInstance().GetKey(
+  auto key = GpgFrontend::GpgKeyGetter::GetInstance(1).GetKey(
       "9490795B78F8AFE9F93BD09281704859182661FB");
   auto sub_keys = key.subKeys();
   ASSERT_EQ(sub_keys->size(), 2);
@@ -244,7 +216,7 @@ TEST_F(GpgCoreTest, GpgSubKeyTest) {
 }
 
 TEST_F(GpgCoreTest, GpgUIDTest) {
-  auto key = GpgFrontend::GpgKeyGetter::GetInstance().GetKey(
+  auto key = GpgFrontend::GpgKeyGetter::GetInstance(1).GetKey(
       "9490795B78F8AFE9F93BD09281704859182661FB");
   auto uids = key.uids();
   ASSERT_EQ(uids->size(), 1);
@@ -259,7 +231,7 @@ TEST_F(GpgCoreTest, GpgUIDTest) {
 }
 
 TEST_F(GpgCoreTest, GpgKeySignatureTest) {
-  auto key = GpgFrontend::GpgKeyGetter::GetInstance().GetKey(
+  auto key = GpgFrontend::GpgKeyGetter::GetInstance(1).GetKey(
       "9490795B78F8AFE9F93BD09281704859182661FB");
   auto uids = key.uids();
   ASSERT_EQ(uids->size(), 1);
@@ -283,10 +255,10 @@ TEST_F(GpgCoreTest, GpgKeySignatureTest) {
 }
 
 TEST_F(GpgCoreTest, GpgKeyGetterTest) {
-  auto key = GpgFrontend::GpgKeyGetter::GetInstance().GetKey(
+  auto key = GpgFrontend::GpgKeyGetter::GetInstance(1).GetKey(
       "9490795B78F8AFE9F93BD09281704859182661FB");
   ASSERT_TRUE(key.good());
-  auto keys = GpgFrontend::GpgKeyGetter::GetInstance().FetchKey();
+  auto keys = GpgFrontend::GpgKeyGetter::GetInstance(1).FetchKey();
   ASSERT_GE(keys->size(), 1);
 
   ASSERT_TRUE(find(keys->begin(), keys->end(), key) != keys->end());
diff --git a/test/conf/core.cfg b/test/conf/core.cfg
index b9b194cf..4129d39f 100644
--- a/test/conf/core.cfg
+++ b/test/conf/core.cfg
@@ -1,7 +1,9 @@
-# Example application configuration file
+# core test configuration file
 version = "1.0";
 independent_database = true;
-load_keys:
+independent_db_path = "db"
+data_path = "data"
+load_keys =
 {
     private_keys = ({
         filename = "pv1.key";
diff --git a/test/data/pv1.key b/test/data/pv1.key
new file mode 100644
index 00000000..345fdf4f
--- /dev/null
+++ b/test/data/pv1.key
@@ -0,0 +1,82 @@
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+
+lQVYBGE0XVEBDADHYmnEbRB8hxqyQmaLmIRU71PTMZc162qWoWTMaPd7a8gQcQwc
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+-----END PGP PRIVATE KEY BLOCK-----
\ No newline at end of file