From a679f8aca78a6b460f24f8835c33be91a31b243f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20L=C3=BCke?= <f.lueke@mesytec.com>
Date: Mon, 23 Dec 2024 12:58:48 +0100
Subject: [PATCH] cmake: add googletest via FetchContent

---
 CMakeLists.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0a1a55e..3fc2a6a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,23 @@ set(CMAKE_VERBOSE_MAKEFILE ON CACHE BOOL "ON")
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+option(MNODE_BUILD_TESTS "Build mnode test binaries" ${MESYTEC_MNODE_MAIN_PROJECT})
+
+if (MNODE_BUILD_TESTS)
+    find_package(GTest CONFIG)
+    if (NOT GTest_FOUND)
+        include(FetchContent)
+        FetchContent_Declare(googletest URL https://github.com/google/googletest/archive/refs/tags/v1.15.2.zip)
+        # For Windows: Prevent overriding the parent project's compiler/linker settings
+        set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+        FetchContent_MakeAvailable(googletest)
+    endif()
+
+    message("-- mnode: Building tests")
+    include(CTest)
+    enable_testing()
+endif()
+
 include(CMakeRC)
 cmrc_add_resource_library(mnode-resources
     ALIAS mnode::resources NAMESPACE mnode::resources