[Tests] Add thunder_test_support static library for plugin integration testing

Tests/CMakeLists.txt

@@ -5,6 +5,7 @@ option(FILE_UNLINK_TEST "File unlink test" OFF)
 option(REDIRECT_TEST "Test stream redirection" OFF)
 option(MESSAGEBUFFER_TEST "Test message buffer" OFF)
 option(UNRAVELLER "reveal thread details" OFF)
+option(ENABLE_TEST_RUNTIME "Build Thunder test support library for plugin integration tests" OFF)
 
 if(BUILD_TESTS)
     add_subdirectory(unit)
@@ -40,4 +41,8 @@ endif()
 
 if(UNRAVELLER)
     add_subdirectory(unraveller)
+endif()
+
+if(ENABLE_TEST_RUNTIME)
+    add_subdirectory(test_support)
 endif()

Tests/test_support/CMakeLists.txt

@@ -0,0 +1,122 @@
+# If not stated otherwise in this file or this component's license file the
+# following copyright and licenses apply:
+#
+# Copyright 2024 RDK Management
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# ============================================================================
+# thunder_test_support - Static library for Thunder plugin integration testing
+#
+# This library embeds the Thunder PluginHost server (PluginServer, Controller,
+# SystemInfo, etc.) into a static archive so that GTest-based test binaries
+# can spin up a real Thunder runtime in-process without launching the
+# standalone Thunder daemon.
+#
+# Usage:
+#   1. Link your test executable against thunder_test_support.
+#   2. Use ThunderTestRuntime::Initialize() to start the embedded server.
+#   3. Call JSON-RPC or COM-RPC methods directly against loaded plugins.
+#   4. Call ThunderTestRuntime::Shutdown() when done.
+#
+# NOTE: PluginHost.cpp is deliberately excluded — it contains main().
+#       The test binary provides its own main() via GTest.
+# ============================================================================
+
+find_package(Threads REQUIRED)
+
+set(THUNDER_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../Source/Thunder")
+
+set(THREADPOOL_COUNT "4" CACHE STRING "The number of threads in the thread pool for test runtime")
+
+add_library(thunder_test_support STATIC
+    ThunderTestRuntime.cpp
+    Module.cpp
+    ${THUNDER_SOURCE_DIR}/PluginServer.cpp
+    ${THUNDER_SOURCE_DIR}/Controller.cpp
+    ${THUNDER_SOURCE_DIR}/SystemInfo.cpp
+    ${THUNDER_SOURCE_DIR}/PostMortem.cpp
+    ${THUNDER_SOURCE_DIR}/Probe.cpp
+)
+
+# PluginHost.cpp is deliberately excluded — it contains main().
+# The test binary supplies its own main via GTest/GMock.
+
+target_compile_definitions(thunder_test_support
+    PRIVATE
+        NAMESPACE=${NAMESPACE}
+        APPLICATION_NAME=ThunderTestRuntime
+        MODULE_NAME=ThunderTestRuntime
+        THREADPOOL_COUNT=${THREADPOOL_COUNT}
+)
+
+target_compile_options(thunder_test_support PRIVATE -Wno-psabi)
+
+target_link_libraries(thunder_test_support
+    PRIVATE
+        CompileSettings::CompileSettings
+)
+
+if(EXCEPTION_CATCHING)
+    set_source_files_properties(${THUNDER_SOURCE_DIR}/PluginServer.cpp PROPERTIES COMPILE_FLAGS "-fexceptions")
+endif()
+
+target_include_directories(thunder_test_support
+    PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}
+    PRIVATE
+        ${THUNDER_SOURCE_DIR}
+        $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/Source/plugins/generated/jsonrpc>
+        $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/Source/Thunder/generated>
+)
+
+target_link_libraries(thunder_test_support
+    PUBLIC
+        ${NAMESPACE}Core::${NAMESPACE}Core
+        ${NAMESPACE}Cryptalgo::${NAMESPACE}Cryptalgo
+        ${NAMESPACE}COM::${NAMESPACE}COM
+        ${NAMESPACE}Messaging::${NAMESPACE}Messaging
+        ${NAMESPACE}WebSocket::${NAMESPACE}WebSocket
+        ${NAMESPACE}Plugins::${NAMESPACE}Plugins
+        ${NAMESPACE}COMProcess::${NAMESPACE}COMProcess
+        Threads::Threads
+)
+
+if(WARNING_REPORTING)
+    target_sources(thunder_test_support PRIVATE ${THUNDER_SOURCE_DIR}/WarningReportingCategories.cpp)
+endif()
+
+if(PROCESSCONTAINERS)
+    target_link_libraries(thunder_test_support
+        PUBLIC
+            ${NAMESPACE}ProcessContainers::${NAMESPACE}ProcessContainers)
+    target_compile_definitions(thunder_test_support
+        PUBLIC
+            PROCESSCONTAINERS_ENABLED=1)
+endif()
+
+if(HIBERNATESUPPORT)
+    target_link_libraries(thunder_test_support PUBLIC
+        ${NAMESPACE}Hibernate::${NAMESPACE}Hibernate)
+    target_compile_definitions(thunder_test_support PUBLIC
+        HIBERNATE_SUPPORT_ENABLED=1)
+endif()
+
+# --- Install rules ---
+install(TARGETS thunder_test_support
+    ARCHIVE DESTINATION lib
+)
+
+install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/ThunderTestRuntime.h
+    DESTINATION include/thunder_test_support
+)

Tests/test_support/Module.cpp

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2024 RDK Management
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Module definition for the thunder_test_support static library.
+// MODULE_NAME is set to ThunderTestRuntime via -D in CMakeLists.txt,
+// which overrides Source/Thunder/Module.h's default of "Application".
+// This ensures all server sources and the MODULE_NAME_DECLARATION below
+// use the same symbol, and trace output shows "ThunderTestRuntime".
+
+#ifndef MODULE_NAME
+#define MODULE_NAME ThunderTestRuntime
+#endif
+
+#include <core/core.h>
+
+MODULE_NAME_DECLARATION(BUILD_REFERENCE)