From 22b2625c2cfb6d54d0d7c59e6850bd6a2a70c9d6 Mon Sep 17 00:00:00 2001
From: Mathias Kraus <k.hias@gmx.de>
Date: Wed, 6 Sep 2023 19:19:16 +0200
Subject: [PATCH] iox-#1533 Remove the gtest dependency from `RouDiEnv`

---
 iceoryx_posh/CMakeLists.txt                   |  7 ++-
 .../popo/building_blocks/unique_port_id.hpp   | 10 ++++
 iceoryx_posh/roudi_env/CMakeLists.txt         | 43 ++++++++---------
 .../iceoryx_posh/roudi_env/roudi_env.hpp      |  5 +-
 iceoryx_posh/roudi_env/source/roudi_env.cpp   | 13 ++----
 .../popo/building_blocks/unique_port_id.cpp   |  5 ++
 iceoryx_posh/testing/CMakeLists.txt           | 46 +++++++++----------
 7 files changed, 67 insertions(+), 62 deletions(-)

diff --git a/iceoryx_posh/CMakeLists.txt b/iceoryx_posh/CMakeLists.txt
index ab76579a118..6280e5cfc3d 100644
--- a/iceoryx_posh/CMakeLists.txt
+++ b/iceoryx_posh/CMakeLists.txt
@@ -299,9 +299,12 @@ setup_install_directories_and_export_package(
     INCLUDE_DIRECTORIES include/
 )
 
-add_subdirectory(roudi_env)
-add_subdirectory(testing)
+
+if(ROUDI_ENVIRONMENT OR BUILD_TEST)
+    add_subdirectory(roudi_env)
+endif()
 
 if(BUILD_TEST)
+    add_subdirectory(testing)
     add_subdirectory(test)
 endif()
diff --git a/iceoryx_posh/include/iceoryx_posh/internal/popo/building_blocks/unique_port_id.hpp b/iceoryx_posh/include/iceoryx_posh/internal/popo/building_blocks/unique_port_id.hpp
index 1b5abc52e8c..ab65593a05e 100644
--- a/iceoryx_posh/include/iceoryx_posh/internal/popo/building_blocks/unique_port_id.hpp
+++ b/iceoryx_posh/include/iceoryx_posh/internal/popo/building_blocks/unique_port_id.hpp
@@ -25,6 +25,11 @@
 
 namespace iox
 {
+namespace roudi_env
+{
+class RouDiEnv;
+}
+
 namespace popo
 {
 /// @brief Struct to signal the constructor to create an invalid id
@@ -74,6 +79,11 @@ class UniquePortId : public NewType<UniquePortId,
     static uint16_t getUniqueRouDiId() noexcept;
 
   private:
+    friend class roudi_env::RouDiEnv;
+    // since the RouDiEnv gets restarted multiple times within a process, this helps to
+    // reset the unique RouDi id during tests
+    static void rouDiEnvOverideUniqueRouDiId(const uint16_t id) noexcept;
+
     // returns true if setUniqueRouDiId was already called or a non-invalid UniquePortId
     // was created, otherwise false
     static bool finalizeSetUniqueRouDiId() noexcept;
diff --git a/iceoryx_posh/roudi_env/CMakeLists.txt b/iceoryx_posh/roudi_env/CMakeLists.txt
index fc782353e54..65e69770884 100644
--- a/iceoryx_posh/roudi_env/CMakeLists.txt
+++ b/iceoryx_posh/roudi_env/CMakeLists.txt
@@ -19,27 +19,22 @@
 # This package must NOT depend in any way on gtest or any other testing framework since
 # it will be used from other languages like Rust for integration testing.
 
-if(ROUDI_ENVIRONMENT OR BUILD_TEST)
-    #
-    ######### posh roudi env ##########
-    #
-    find_package(iceoryx_hoofs_testing REQUIRED)
-    iox_add_library(
-        STATIC
-        TARGET                  iceoryx_posh_roudi_env
-        NAMESPACE               iceoryx_posh
-        PROJECT_PREFIX          ${PREFIX}
-        BUILD_INTERFACE         ${CMAKE_CURRENT_SOURCE_DIR}/include
-        INSTALL_INTERFACE       include/${PREFIX}
-        EXPORT_INCLUDE_DIRS     include/
-        PRIVATE_LIBS            iceoryx_posh::iceoryx_posh
-                                iceoryx_hoofs::iceoryx_hoofs
-                                iceoryx_hoofs_testing::iceoryx_hoofs_testing
-                                iceoryx_posh::iceoryx_posh_roudi
-        FILES
-            source/minimal_roudi_config.cpp
-            source/roudi_env.cpp
-            source/runtime_test_interface.cpp
-    )
-endif()
-
+#
+######### posh roudi env ##########
+#
+iox_add_library(
+    STATIC
+    TARGET                  iceoryx_posh_roudi_env
+    NAMESPACE               iceoryx_posh
+    PROJECT_PREFIX          ${PREFIX}
+    BUILD_INTERFACE         ${CMAKE_CURRENT_SOURCE_DIR}/include
+    INSTALL_INTERFACE       include/${PREFIX}
+    EXPORT_INCLUDE_DIRS     include/
+    PRIVATE_LIBS            iceoryx_posh::iceoryx_posh
+                            iceoryx_hoofs::iceoryx_hoofs
+                            iceoryx_posh::iceoryx_posh_roudi
+    FILES
+        source/minimal_roudi_config.cpp
+        source/roudi_env.cpp
+        source/runtime_test_interface.cpp
+)
diff --git a/iceoryx_posh/roudi_env/include/iceoryx_posh/roudi_env/roudi_env.hpp b/iceoryx_posh/roudi_env/include/iceoryx_posh/roudi_env/roudi_env.hpp
index 5efb9793fc1..34974542ee3 100644
--- a/iceoryx_posh/roudi_env/include/iceoryx_posh/roudi_env/roudi_env.hpp
+++ b/iceoryx_posh/roudi_env/include/iceoryx_posh/roudi_env/roudi_env.hpp
@@ -56,12 +56,11 @@ class RouDiEnv
 
   protected:
     /// @note this is due to ambiguity of the cTor with the default parameter
-    enum class BaseCTor
+    struct MainCTor
     {
-        BASE,
     };
     /// @brief for implementations on top of RouDiEnv
-    RouDiEnv(BaseCTor, const uint16_t uniqueRouDiId = 0u);
+    RouDiEnv(MainCTor, const uint16_t uniqueRouDiId = 0u);
 
     void cleanupRuntimes();
 
diff --git a/iceoryx_posh/roudi_env/source/roudi_env.cpp b/iceoryx_posh/roudi_env/source/roudi_env.cpp
index 31b7b11e076..d61732fc303 100644
--- a/iceoryx_posh/roudi_env/source/roudi_env.cpp
+++ b/iceoryx_posh/roudi_env/source/roudi_env.cpp
@@ -17,7 +17,6 @@
 
 #include "iceoryx_posh/roudi_env/roudi_env.hpp"
 #include "iceoryx_hoofs/internal/posix_wrapper/shared_memory_object/memory_map.hpp"
-#include "iceoryx_hoofs/testing/mocks/error_handler_mock.hpp" // get rid of this
 #include "iceoryx_posh/internal/popo/building_blocks/unique_port_id.hpp"
 #include "iceoryx_posh/internal/roudi/roudi.hpp"
 #include "iceoryx_posh/runtime/posh_runtime.hpp"
@@ -28,17 +27,15 @@ namespace iox
 {
 namespace roudi_env
 {
-RouDiEnv::RouDiEnv(BaseCTor, const uint16_t uniqueRouDiId)
+RouDiEnv::RouDiEnv(MainCTor, const uint16_t uniqueRouDiId)
 {
-    // setUniqueRouDiId is called multiple times but it is okay for the tests
-    auto errorHandlerGuard = iox::ErrorHandlerMock::setTemporaryErrorHandler<iox::PoshError>([](auto, auto) {});
-    iox::popo::UniquePortId::setUniqueRouDiId(uniqueRouDiId);
+    popo::UniquePortId::rouDiEnvOverideUniqueRouDiId(uniqueRouDiId);
 }
 
 RouDiEnv::RouDiEnv(const RouDiConfig_t& roudiConfig,
                    const roudi::MonitoringMode monitoringMode,
                    const uint16_t uniqueRouDiId)
-    : RouDiEnv(BaseCTor::BASE, uniqueRouDiId)
+    : RouDiEnv(MainCTor{}, uniqueRouDiId)
 {
     m_roudiComponents = std::unique_ptr<roudi::IceOryxRouDiComponents>(new roudi::IceOryxRouDiComponents(roudiConfig));
     m_roudiApp =
@@ -51,9 +48,7 @@ RouDiEnv::~RouDiEnv()
 {
     if (m_runtimes.m_doCleanupOnDestruction)
     {
-        // setUniqueRouDiId is called multiple times but it is okay for the tests
-        auto errorHandlerGuard = iox::ErrorHandlerMock::setTemporaryErrorHandler<iox::PoshError>([](auto, auto) {});
-        popo::UniquePortId::setUniqueRouDiId(roudi::DEFAULT_UNIQUE_ROUDI_ID);
+        popo::UniquePortId::rouDiEnvOverideUniqueRouDiId(roudi::DEFAULT_UNIQUE_ROUDI_ID);
     }
     cleanupRuntimes();
 }
diff --git a/iceoryx_posh/source/popo/building_blocks/unique_port_id.cpp b/iceoryx_posh/source/popo/building_blocks/unique_port_id.cpp
index a775a4991c1..d2393584a96 100644
--- a/iceoryx_posh/source/popo/building_blocks/unique_port_id.cpp
+++ b/iceoryx_posh/source/popo/building_blocks/unique_port_id.cpp
@@ -63,6 +63,11 @@ void UniquePortId::setUniqueRouDiId(const uint16_t id) noexcept
     uniqueRouDiId.store(id, std::memory_order_relaxed);
 }
 
+void UniquePortId::rouDiEnvOverideUniqueRouDiId(const uint16_t id) noexcept
+{
+    uniqueRouDiId.store(id, std::memory_order_relaxed);
+}
+
 bool UniquePortId::finalizeSetUniqueRouDiId() noexcept
 {
     static bool finalized{false};
diff --git a/iceoryx_posh/testing/CMakeLists.txt b/iceoryx_posh/testing/CMakeLists.txt
index 24f57c52d70..2e50caf9c36 100644
--- a/iceoryx_posh/testing/CMakeLists.txt
+++ b/iceoryx_posh/testing/CMakeLists.txt
@@ -15,27 +15,25 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-if(ROUDI_ENVIRONMENT OR BUILD_TEST)
-    #
-    ######### posh roudi environment ##########
-    #
-    find_package(GTest CONFIG REQUIRED)
-    find_package(iceoryx_hoofs_testing REQUIRED)
-    iox_add_library(
-        STATIC
-        TARGET                  iceoryx_posh_testing
-        NAMESPACE               iceoryx_posh_testing
-        PROJECT_PREFIX          ${PREFIX}
-        BUILD_INTERFACE         ${CMAKE_CURRENT_SOURCE_DIR}/include
-        INSTALL_INTERFACE       include/${PREFIX}
-        EXPORT_INCLUDE_DIRS     include/
-        PUBLIC_LIBS             GTest::gtest
-                                GTest::gmock
-                                iceoryx_posh::iceoryx_posh_roudi_env
-        PRIVATE_LIBS            iceoryx_posh::iceoryx_posh
-                                iceoryx_hoofs::iceoryx_hoofs
-                                iceoryx_hoofs_testing::iceoryx_hoofs_testing
-        FILES
-            source/roudi_gtest.cpp
-    )
-endif()
+#
+######### posh testing ##########
+#
+find_package(GTest CONFIG REQUIRED)
+find_package(iceoryx_hoofs_testing REQUIRED)
+iox_add_library(
+    STATIC
+    TARGET                  iceoryx_posh_testing
+    NAMESPACE               iceoryx_posh_testing
+    PROJECT_PREFIX          ${PREFIX}
+    BUILD_INTERFACE         ${CMAKE_CURRENT_SOURCE_DIR}/include
+    INSTALL_INTERFACE       include/${PREFIX}
+    EXPORT_INCLUDE_DIRS     include/
+    PUBLIC_LIBS             GTest::gtest
+                            GTest::gmock
+                            iceoryx_posh::iceoryx_posh_roudi_env
+    PRIVATE_LIBS            iceoryx_posh::iceoryx_posh
+                            iceoryx_hoofs::iceoryx_hoofs
+                            iceoryx_hoofs_testing::iceoryx_hoofs_testing
+    FILES
+        source/roudi_gtest.cpp
+)