diff --git a/services/backup/docker-server/contents/server/CMakeLists.txt b/services/backup/docker-server/contents/server/CMakeLists.txt
--- a/services/backup/docker-server/contents/server/CMakeLists.txt
+++ b/services/backup/docker-server/contents/server/CMakeLists.txt
@@ -27,6 +27,10 @@
 set(gRPC_BUILD_GRPC_PYTHON_PLUGIN OFF)
 set(gRPC_BUILD_GRPC_CSHARP_PLUGIN OFF)
 
+if ($ENV{COMM_TEST_SERVICES} MATCHES 1)
+  add_compile_definitions(COMM_TEST_SERVICES)
+endif()
+
 # Find gRPC installation
 # Looks for gRPCConfig.cmake file installed by gRPC's cmake installation.
 find_package(gRPC CONFIG REQUIRED)
diff --git a/services/backup/docker-server/contents/server/test/DatabaseManagerTest.cpp b/services/backup/docker-server/contents/server/test/DatabaseManagerTest.cpp
new file mode 100644
--- /dev/null
+++ b/services/backup/docker-server/contents/server/test/DatabaseManagerTest.cpp
@@ -0,0 +1,58 @@
+#include <gtest/gtest.h>
+
+#include "DatabaseManager.h"
+#include "Tools.h"
+
+#include <iostream>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+using namespace comm::network::database;
+
+class DatabaseManagerTest : public testing::Test {
+protected:
+  virtual void SetUp() {
+    Aws::InitAPI({});
+  }
+
+  virtual void TearDown() {
+    Aws::ShutdownAPI({});
+  }
+};
+
+std::string generateName(const std::string prefix = "") {
+  return prefix + "-" + std::to_string(comm::network::getCurrentTimestamp());
+}
+
+TEST_F(DatabaseManagerTest, TestOperationsOnBackupItems) {
+  auto generateBackupItem = [](const std::string &userID,
+                               const std::string &backupID) {
+    return BackupItem(
+        userID,
+        backupID,
+        comm::network::getCurrentTimestamp(),
+        "xxx",
+        "xxx",
+        {""});
+  };
+
+  const std::string userID = generateName("user001");
+
+  std::vector<std::string> backupIDs = {"backup001", "backup002", "backup003"};
+  for (const std::string &backupID : backupIDs) {
+    DatabaseManager::getInstance().putBackupItem(
+        generateBackupItem(userID, backupID));
+  }
+
+  std::shared_ptr<BackupItem> item;
+  while (!backupIDs.empty()) {
+    item = DatabaseManager::getInstance().findLastBackupItem(userID);
+    EXPECT_NE(item, nullptr);
+    EXPECT_EQ(item->getBackupID(), backupIDs.back());
+    backupIDs.pop_back();
+    DatabaseManager::getInstance().removeBackupItem(item);
+  };
+  EXPECT_EQ(DatabaseManager::getInstance().findLastBackupItem(userID), nullptr);
+}