diff --git a/CMakeLists.txt b/CMakeLists.txt
index f08fa4cc9cb9d596407cb56f0e876f62a35957e6..1e5d9d8c5d2d0edd28737d8c0470cecfff7747ee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,9 +23,12 @@ option(INSTALL_WITH_RPATH "RPATH the build dependencies for e.g dlb into the sha
 
 # Other options
 option(WITH_MPI "Compile with MPI" OFF)
+
+option(WITH_TESTS "Add Tests" ON)
 option(WITH_MPI_TESTS "Add MPI Tests. Requires mpirun to be working" ON)
 
 
+
 if(BUILD_C_FORTRAN)
   enable_language(Fortran)
   set(CMAKE_Fortran_FORMAT FREE)
@@ -89,7 +92,6 @@ endif()
 
 include(FetchContent)
 
-
 # Define the PathTOJson variable with an empty default value
 set(NLOHMAN_JSON_PATH "" CACHE STRING "Path to the local nlohmann json release file")
 
@@ -116,9 +118,18 @@ target_link_libraries(${PROJECT_NAME} PRIVATE nlohmann_json::nlohmann_json)
 add_subdirectory(src)
 
 
-enable_testing()
-add_subdirectory(tests)
+if(WITH_TESTS)
 
+  include(FetchContent)
+  FetchContent_Declare(
+    googletest
+    URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
+  )
+  FetchContent_MakeAvailable(googletest)
+
+  enable_testing()
+  add_subdirectory(tests)
+endif()
 
 #
 # Install Targets for nesmik
diff --git a/src/backends/wrappers/extrae/paraver_config.cpp b/src/backends/wrappers/extrae/paraver_config.cpp
index a04799e7bc5154aa061f0ab244b00fe9a537c162..693ab15e763ffa53d59902f6704128fd1aa2fd50 100644
--- a/src/backends/wrappers/extrae/paraver_config.cpp
+++ b/src/backends/wrappers/extrae/paraver_config.cpp
@@ -62,7 +62,7 @@ ParaverConfig::ParaverConfig(const std::string &description) {
   config_ << head_with_description << "\n";
 }
 
-void ParaverConfig::addTimeline(ParaverTimelineWindow window_config) {
+void ParaverConfig::addTimeline(const ParaverTimelineWindow &window_config) {
   assert(window_config.types.size() == window_config.semantic_maximums.size() &&
          window_config.types.size() == window_config.window_names.size());
 
diff --git a/src/backends/wrappers/extrae/paraver_config.hpp b/src/backends/wrappers/extrae/paraver_config.hpp
index 91d609f97ec36551e7e7b9c51edacac468353283..23d0feea88a6e0f8e325535057d90e942840b282 100644
--- a/src/backends/wrappers/extrae/paraver_config.hpp
+++ b/src/backends/wrappers/extrae/paraver_config.hpp
@@ -24,6 +24,6 @@ class ParaverConfig {
 
  public:
   ParaverConfig(const std::string &description);
-  void addTimeline(ParaverTimelineWindow window_config);
+  void addTimeline(const ParaverTimelineWindow &window_config);
   std::string getString();
 };
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 384053429942e9a7ca5d6aae9b6b43be418d5862..5c1c4be270cb7ae38c8930b93e4b6fa7df754b2e 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,3 +1,8 @@
+
+
+add_subdirectory(backends/wrappers)
+
+
 add_executable(TestCppLink cpp/TestCppLink.cpp)
 target_link_libraries(TestCppLink nesmik::nesmik)
 target_include_directories(TestCppLink
diff --git a/tests/backends/wrappers/CMakeLists.txt b/tests/backends/wrappers/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1e41b48b23dc0f825f9dce75b666388c258498f8
--- /dev/null
+++ b/tests/backends/wrappers/CMakeLists.txt
@@ -0,0 +1,12 @@
+add_executable(
+  test_paraver_config
+  test_paraver_config.cpp
+)
+target_link_libraries(
+  test_paraver_config
+  GTest::gtest_main
+  nesmik::nesmik
+)
+
+include(GoogleTest)
+gtest_discover_tests(test_paraver_config)
diff --git a/tests/backends/wrappers/test_paraver_config.cpp b/tests/backends/wrappers/test_paraver_config.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..fe86635c2bde5fa982583c892aa745e75e67c9c5
--- /dev/null
+++ b/tests/backends/wrappers/test_paraver_config.cpp
@@ -0,0 +1,66 @@
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include <backends/wrappers/extrae/paraver_config.hpp>
+
+using ::testing::HasSubstr;
+class ParaverConfigTest : public testing::Test {
+ protected:
+  ParaverConfigTest()
+      : config_empty_description_{""},
+        config_{"Paraver Configuration description"} {}
+  ParaverConfig config_empty_description_;
+  ParaverConfig config_;
+};
+
+TEST_F(ParaverConfigTest, HandlesEmptyTimelineWindow) {
+  ParaverTimelineWindow empty_window_not_stacked{
+      .window_names = {},
+      .types = {},
+      .semantic_maximums = {},
+      .stacked_window_name = std::nullopt};
+  config_.addTimeline(empty_window_not_stacked);
+  EXPECT_THAT(config_.getString(),
+              HasSubstr("Paraver Configuration description"));
+  std::cout << config_.getString();
+}
+
+TEST_F(ParaverConfigTest, HandlesOneEvent) {
+  ParaverTimelineWindow window{.window_names = {"TestWindowName"},
+                               .types = {709888},
+                               .semantic_maximums = {19},
+                               .stacked_window_name = std::nullopt};
+  config_.addTimeline(window);
+  EXPECT_THAT(config_.getString(), HasSubstr("TestWindowName"));
+  EXPECT_THAT(config_.getString(), HasSubstr("709888"));
+  EXPECT_THAT(config_.getString(), HasSubstr("19"));
+}
+
+TEST_F(ParaverConfigTest, HandlesMultipleEvents) {
+  ParaverTimelineWindow window{
+      .window_names = {"TestWindowName", "TestWindow2"},
+      .types = {709888, 828377},
+      .semantic_maximums = {19, 90},
+      .stacked_window_name = std::nullopt};
+  config_.addTimeline(window);
+  EXPECT_THAT(config_.getString(), HasSubstr("TestWindowName"));
+  EXPECT_THAT(config_.getString(), HasSubstr("TestWindow2"));
+  EXPECT_THAT(config_.getString(), HasSubstr("709888"));
+  EXPECT_THAT(config_.getString(), HasSubstr("828377"));
+  EXPECT_THAT(config_.getString(), HasSubstr("90"));
+}
+
+TEST_F(ParaverConfigTest, HandlesMultipleEventsWithStackedWindow) {
+  ParaverTimelineWindow window{
+      .window_names = {"TestWindowName", "TestWindow2"},
+      .types = {709888, 828377},
+      .semantic_maximums = {19, 90},
+      .stacked_window_name = {"Stacked Window Name"}};
+  config_.addTimeline(window);
+  EXPECT_THAT(config_.getString(), HasSubstr("TestWindowName"));
+  EXPECT_THAT(config_.getString(), HasSubstr("TestWindow2"));
+  EXPECT_THAT(config_.getString(), HasSubstr("709888"));
+  EXPECT_THAT(config_.getString(), HasSubstr("828377"));
+  EXPECT_THAT(config_.getString(), HasSubstr("90"));
+  EXPECT_THAT(config_.getString(), HasSubstr("Stacked Window Name"));
+}