diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index bc6d7b8e8..7f31687e2 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -371,6 +371,9 @@ cockatrice_add_test(
   LIBS
   libcockatrice_network_server_remote
   libcockatrice_rng
+  testsupport_server
+  INCLUDE_DIRS
+  ${CMAKE_CURRENT_SOURCE_DIR}
   LABELS
   server
 )
@@ -396,6 +399,9 @@ cockatrice_add_test(
   LIBS
   libcockatrice_network_server_remote
   libcockatrice_rng
+  testsupport_server
+  INCLUDE_DIRS
+  ${CMAKE_CURRENT_SOURCE_DIR}
   LABELS
   server
 )
@@ -431,6 +437,9 @@ cockatrice_add_test(
   LIBS
   libcockatrice_network_server_remote
   libcockatrice_rng
+  testsupport_server
+  INCLUDE_DIRS
+  ${CMAKE_CURRENT_SOURCE_DIR}
   LABELS
   server
 )
diff --git a/tests/movecard_tests/CMakeLists.txt b/tests/movecard_tests/CMakeLists.txt
index 35d7b44ed..89ad32d3f 100755
--- a/tests/movecard_tests/CMakeLists.txt
+++ b/tests/movecard_tests/CMakeLists.txt
@@ -6,6 +6,9 @@ cockatrice_add_test(
   LIBS
   libcockatrice_network_server_remote
   libcockatrice_rng
+  testsupport_server
+  INCLUDE_DIRS
+  ${CMAKE_SOURCE_DIR}/tests
   LABELS
   server
 )
@@ -18,6 +21,9 @@ cockatrice_add_test(
   LIBS
   libcockatrice_network_server_remote
   libcockatrice_rng
+  testsupport_server
+  INCLUDE_DIRS
+  ${CMAKE_SOURCE_DIR}/tests
   LABELS
   server
 )
diff --git a/tests/movecard_tests/player_order_test.cpp b/tests/movecard_tests/player_order_test.cpp
index 6e398af24..7d2722638 100644
--- a/tests/movecard_tests/player_order_test.cpp
+++ b/tests/movecard_tests/player_order_test.cpp
@@ -5,7 +5,7 @@
 #include "server_abstractuserinterface.h"
 #include "server_response_containers.h"
 #include "server_room.h"
-#include "server_test_helpers.h"
+#include "support/server_test_fixture.h"
 
 #include <gtest/gtest.h>
 #include <libcockatrice/protocol/pb/game_event_container.pb.h>
diff --git a/tests/movecard_tests/reverse_card_move_test.cpp b/tests/movecard_tests/reverse_card_move_test.cpp
index 6bed20d18..de8ca9292 100644
--- a/tests/movecard_tests/reverse_card_move_test.cpp
+++ b/tests/movecard_tests/reverse_card_move_test.cpp
@@ -7,7 +7,7 @@
 #include "libcockatrice/protocol/pb/serverinfo_zone.pb.h"
 #include "server_response_containers.h"
 #include "server_room.h"
-#include "server_test_helpers.h"
+#include "support/server_test_fixture.h"
 
 #include <QList>
 #include <QString>
diff --git a/tests/movecard_tests/server_test_helpers.h b/tests/movecard_tests/server_test_helpers.h
deleted file mode 100644
index fd2ed6c17..000000000
--- a/tests/movecard_tests/server_test_helpers.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#include "server.h"
-#include "server_database_interface.h"
-
-class MockDatabaseInterface : public Server_DatabaseInterface
-{
-public:
-    AuthenticationResult checkUserPassword(Server_ProtocolHandler *,
-                                           const QString &,
-                                           const QString &,
-                                           const QString &,
-                                           QString &,
-                                           int &,
-                                           bool) override
-    {
-        return NotLoggedIn;
-    }
-    ServerInfo_User getUserData(const QString &, bool) override
-    {
-        return ServerInfo_User();
-    }
-    int getNextGameId() override
-    {
-        return 1;
-    }
-    int getNextReplayId() override
-    {
-        return 1;
-    }
-    int getActiveUserCount(QString) override
-    {
-        return 1;
-    }
-};
-
-class FakeServer : public Server
-{
-public:
-    FakeServer()
-    {
-        setDatabaseInterface(new MockDatabaseInterface());
-    }
-};
diff --git a/tests/random_reveal_test.cpp b/tests/random_reveal_test.cpp
index 62defe183..998b1ae87 100644
--- a/tests/random_reveal_test.cpp
+++ b/tests/random_reveal_test.cpp
@@ -3,10 +3,10 @@
 #include "game/server_card.h"
 #include "game/server_cardzone.h"
 #include "game/server_game.h"
-#include "movecard_tests/server_test_helpers.h"
 #include "server_abstractuserinterface.h"
 #include "server_response_containers.h"
 #include "server_room.h"
+#include "support/server_test_fixture.h"
 
 #include <QCoreApplication>
 #include <gtest/gtest.h>
diff --git a/tests/server_forced_password_change_test.cpp b/tests/server_forced_password_change_test.cpp
index 9717b610b..76b5110bf 100644
--- a/tests/server_forced_password_change_test.cpp
+++ b/tests/server_forced_password_change_test.cpp
@@ -5,9 +5,8 @@
 
 #include "libcockatrice/protocol/pb/response.pb.h"
 #include "libcockatrice/protocol/pb/server_message.pb.h"
-#include "server.h"
-#include "server_database_interface.h"
 #include "server_protocolhandler.h"
+#include "support/server_test_fixture.h"
 
 #include <QString>
 #include <gtest/gtest.h>
@@ -22,52 +21,6 @@ RNG_Abstract *rng = nullptr; // referenced by the server_remote library
 namespace
 {
 
-class MockDatabaseInterface : public Server_DatabaseInterface
-{
-public:
-    AuthenticationResult checkUserPassword(Server_ProtocolHandler *,
-                                           const QString &,
-                                           const QString &,
-                                           const QString &,
-                                           QString &,
-                                           int &,
-                                           bool) override
-    {
-        return PasswordChangeRequired;
-    }
-    ServerInfo_User getUserData(const QString &name, bool withId) override
-    {
-        ServerInfo_User user;
-        user.set_name(name.toStdString());
-        user.set_user_level(ServerInfo_User::IsUser | ServerInfo_User::IsRegistered | ServerInfo_User::IsModerator);
-        if (withId) {
-            user.set_id(1);
-        }
-        return user;
-    }
-    int getNextReplayId() override
-    {
-        return 1;
-    }
-    int getNextGameId() override
-    {
-        return 1;
-    }
-    int getActiveUserCount(QString) override
-    {
-        return 0;
-    }
-};
-
-class FakeServer : public Server
-{
-public:
-    FakeServer()
-    {
-        setDatabaseInterface(new MockDatabaseInterface());
-    }
-};
-
 class TestHandler : public Server_ProtocolHandler
 {
 public:
@@ -103,12 +56,21 @@ protected:
     }
 };
 
-class ForcedPasswordChangeTest : public ::testing::Test
+class ForcedPasswordChangeTest : public ServerTestFixture
 {
 protected:
-    FakeServer server;
     TestHandler handler{&server, server.getDatabaseInterface()};
 
+    void SetUp() override
+    {
+        database()->authenticationResult = PasswordChangeRequired;
+        ServerInfo_User mod;
+        mod.set_name("mod");
+        mod.set_id(1);
+        mod.set_user_level(ServerInfo_User::IsUser | ServerInfo_User::IsRegistered | ServerInfo_User::IsModerator);
+        database()->addUser(mod);
+    }
+
     void login()
     {
         CommandContainer cont;
diff --git a/tests/server_room_channels_test.cpp b/tests/server_room_channels_test.cpp
index 006c9fa39..582c13121 100644
--- a/tests/server_room_channels_test.cpp
+++ b/tests/server_room_channels_test.cpp
@@ -5,10 +5,9 @@
 
 #include "libcockatrice/protocol/pb/response.pb.h"
 #include "libcockatrice/protocol/pb/server_message.pb.h"
-#include "server.h"
-#include "server_database_interface.h"
 #include "server_protocolhandler.h"
 #include "server_room.h"
+#include "support/server_test_fixture.h"
 
 #include <QList>
 #include <QObject>
@@ -33,73 +32,6 @@ RNG_Abstract *rng = nullptr; // referenced by the server_remote library
 namespace
 {
 
-class MockDatabaseInterface : public Server_DatabaseInterface
-{
-public:
-    struct LogEntry
-    {
-        QString senderName;
-        QString message;
-        LogMessage_TargetType targetType;
-        int targetId;
-        QString targetName;
-        QString channel;
-    };
-    QList<LogEntry> logEntries;
-
-    void logMessage(const int /* senderId */,
-                    const QString &senderName,
-                    const QString & /* senderIp */,
-                    const QString &message,
-                    LogMessage_TargetType targetType,
-                    const int targetId,
-                    const QString &targetName,
-                    const QString &channel = QString()) override
-    {
-        logEntries.append({senderName, message, targetType, targetId, targetName, channel});
-    }
-
-    AuthenticationResult checkUserPassword(Server_ProtocolHandler *,
-                                           const QString &,
-                                           const QString &,
-                                           const QString &,
-                                           QString &,
-                                           int &,
-                                           bool) override
-    {
-        return NotLoggedIn;
-    }
-    int getNextReplayId() override
-    {
-        return 1;
-    }
-    int getNextGameId() override
-    {
-        return 1;
-    }
-    int getActiveUserCount(QString) override
-    {
-        return 0;
-    }
-    ServerInfo_User getUserData(const QString &, bool) override
-    {
-        return ServerInfo_User();
-    }
-};
-
-class FakeServer : public Server
-{
-public:
-    explicit FakeServer(Server_DatabaseInterface *db) : Server()
-    {
-        setDatabaseInterface(db);
-    }
-    void insertRoom(Server_Room *newRoom)
-    {
-        addRoom(newRoom);
-    }
-};
-
 class TestRoomHandler : public Server_ProtocolHandler
 {
 public:
@@ -149,8 +81,8 @@ protected:
 class RoomChannelTest : public ::testing::Test
 {
 protected:
-    MockDatabaseInterface db;
-    FakeServer server{&db};
+    FakeServer server;
+    InMemoryServer_DatabaseInterface &db{*server.database()};
     QList<ServerInfo_RoomChannel> catalog;
     Server_Room *room = nullptr;
     TestRoomHandler mod{&server, &db};
@@ -360,7 +292,7 @@ TEST_F(RoomChannelTest, UserBelowRequiredLevelCannotSendToChannel)
     EXPECT_TRUE(channelSayEvents(mod).isEmpty());
     EXPECT_TRUE(channelSayEvents(user).isEmpty());
     bool loggedAsChannel = false;
-    for (const MockDatabaseInterface::LogEntry &entry : db.logEntries) {
+    for (const InMemoryServer_DatabaseInterface::LogEntry &entry : db.logEntries) {
         loggedAsChannel |= entry.targetType == Server_DatabaseInterface::MessageTargetRoomChannel;
     }
     EXPECT_FALSE(loggedAsChannel);