From 222fec65b199de8004e5664edd03ced4f29cdb94 Mon Sep 17 00:00:00 2001
From: Johannes Stoelp <johannes.stoelp@gmail.com>
Date: Mon, 30 Oct 2023 21:54:05 +0100
Subject: cmake: move test build into own file test/CMakeLists.txt

---
 CMakeLists.txt      | 34 +++++++---------------------------
 Makefile            |  2 +-
 test/CMakeLists.txt | 22 ++++++++++++++++++++++
 3 files changed, 30 insertions(+), 28 deletions(-)
 create mode 100644 test/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 348393e..19e92ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,7 @@
 cmake_minimum_required(VERSION 3.14)
-project(systemc_utils CXX)
+project(systemc_playground CXX)
+
+set(SRC ${CMAKE_CURRENT_SOURCE_DIR}/src)
 
 set (CMAKE_PREFIX_PATH $ENV{SYSTEMC_HOME})
 find_package(SystemCLanguage CONFIG REQUIRED)
@@ -8,33 +10,11 @@ find_package(SystemCLanguage CONFIG REQUIRED)
 set (CMAKE_CXX_STANDARD ${SystemC_CXX_STANDARD} CACHE STRING "C++ standard to build all targets.")
 
 foreach (X IN ITEMS event sc_export sc_export2 minimal_socket browse lt_bus)
-    add_executable(${X} src/${X}.cc)
-    target_include_directories(${X} PRIVATE src)
+    add_executable(${X} ${SRC}/${X}.cc)
+    target_include_directories(${X} PRIVATE ${SRC})
     target_compile_options(${X} PRIVATE -Wall -Wextra)
     target_link_libraries(${X} SystemC::systemc)
 endforeach()
 
-# -- TESTING -------------------------------------------------------------------
-
-# Fetch googletest.
-# https://google.github.io/googletest/quickstart-cmake.html#set-up-a-project
-include(FetchContent)
-FetchContent_Declare(
-    googletest URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
-)
-set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
-FetchContent_MakeAvailable(googletest)
-
-# Generate CTestTestfile.cmake.
-enable_testing()
-# Include gtest_discover_tests macro.
-include(GoogleTest)
-
-foreach(T IN ITEMS lt_bus)
-    set(TGT test-${T})
-    add_executable(${TGT} test/${T}.cc)
-    target_include_directories(${TGT} PRIVATE src)
-    target_compile_options(${TGT} PRIVATE -Wall -Wextra)
-    target_link_libraries(${TGT} GTest::gmock_main SystemC::systemc)
-    gtest_discover_tests(${TGT})
-endforeach()
+# Include tests.
+add_subdirectory(test)
diff --git a/Makefile b/Makefile
index 6e41117..c6c3cbb 100644
--- a/Makefile
+++ b/Makefile
@@ -23,7 +23,7 @@ run: build
 	done
 
 test: build
-	cd BUILD/PLAYGROUND && ctest --output-on-failure
+	cd BUILD/PLAYGROUND/test && ctest --output-on-failure
 
 BUILD/PLAYGROUND/CMakeCache.txt: CMakeLists.txt
 	cmake -B BUILD/PLAYGROUND $@ -S . \
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000..b67735a
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,22 @@
+# Fetch googletest.
+# https://google.github.io/googletest/quickstart-cmake.html#set-up-a-project
+include(FetchContent)
+FetchContent_Declare(
+    googletest URL https://github.com/google/googletest/archive/03597a01ee50ed33e9dfd640b249b4be3799d395.zip
+)
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+FetchContent_MakeAvailable(googletest)
+
+# Generate CTestTestfile.cmake.
+enable_testing()
+# Include gtest_discover_tests macro.
+include(GoogleTest)
+
+foreach(T IN ITEMS lt_bus)
+    set(TGT test-${T})
+    add_executable(${TGT} ${T}.cc)
+    target_include_directories(${TGT} PRIVATE ${SRC})
+    target_compile_options(${TGT} PRIVATE -Wall -Wextra)
+    target_link_libraries(${TGT} GTest::gmock_main SystemC::systemc)
+    gtest_discover_tests(${TGT})
+endforeach()
-- 
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