include_guard(GLOBAL)

macro(myx_add_gtest TARGET_NAME)
  set(options)
  set(oneValueArgs)
  set(multiValueArgs)
  cmake_parse_arguments(ARG "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})

  add_executable(${TARGET_NAME} ${ARG_UNPARSED_ARGUMENTS})

  find_package(GTest)
  if(GTest_FOUND)
    target_link_libraries(${TARGET_NAME} PRIVATE GTest::GTest GTest::Main)
  else()
    if((NOT TARGET gtest) AND (NOT TARGET gtest_main))
      add_subdirectory(/usr/src/googletest/googletest ${CMAKE_BINARY_DIR}/gtest)
    endif()
    target_link_libraries(${TARGET_NAME} PRIVATE gtest gtest_main)
  endif()

  add_test(NAME ${TARGET_NAME} COMMAND ${TARGET_NAME})
  foreach(iter IN LISTS oneValueArgs multiValueArgs)
    unset(ARG_${iter})
  endforeach()
  unset(ARG_UNPARSED_ARGUMENTS)
  unset(multiValueArgs)
  unset(oneValueArgs)
  unset(options)
endmacro()