Make test CMakeLists.txt similar to the code in basics

Author: ObiWahn

tests/CMakeLists.txt

@@ -10,13 +10,27 @@ foreach(test_name IN LISTS test-files${suffix}) # <- DO NOT EXPAND LIST
     list(APPEND test_sources "${test_name}.cpp")
 endforeach()
 
-set(test_target "test-ext-logging${suffix}")
-add_executable("${test_target}" gtest.cpp ${test_sources})
-target_include_directories("${test_target}" SYSTEM PRIVATE ${gtest_SOURCE_DIR}/include)
-target_link_libraries("${test_target}" ext::basics ext::logging gtest_main gtest Threads::Threads)
-target_compile_options("${test_target}" PRIVATE ${ext_stone-warnings})
-target_compile_definitions("${test_target}" PUBLIC EXT_CHECKED=1 EXT_IN_TEST=1)
-# -- repeated calls should append which does not happen for me (cmake 3.16 on linux)
-#target_compile_definitions("${test_target}" PUBLIC EXT_IN_TEST=1
-add_test(NAME "${test_target}_run" COMMAND $<TARGET_FILE:${test_target}>)
-set_target_properties (${test_target} PROPERTIES FOLDER tests/${test_target})
+foreach(suffix IN ITEMS "")
+    #build one executable
+    set(test_sources)
+    foreach(test_name IN LISTS test-files${suffix}) # <- DO NOT EXPAND LIST
+        list(APPEND test_sources "${test_name}.cpp")
+    endforeach()
+
+    set(test_target "test-ext-logging${suffix}")
+    add_executable("${test_target}" gtest.cpp ${test_sources})
+    target_include_directories("${test_target}" SYSTEM PRIVATE ${gtest_SOURCE_DIR}/include)
+    target_link_libraries("${test_target}"
+        ext::basics${suffix}
+        ext::logging${suffix}
+        gtest_main gtest
+        Threads::Threads
+        std::filesystem
+    )
+    target_compile_options("${test_target}" PRIVATE ${ext_stone-warnings})
+    target_compile_definitions("${test_target}" PUBLIC EXT_CHECKED=1 EXT_IN_TEST=1)
+    # -- repeated calls should append which does not happen for me (cmake 3.16 on linux)
+    #target_compile_definitions("${test_target}" PUBLIC EXT_IN_TEST=1
+	add_test(NAME "${test_target}_run" COMMAND $<TARGET_FILE:${test_target}>)
+    set_target_properties (${test_target} PROPERTIES FOLDER tests/${test_target})
+endforeach()