cmake_minimum_required(VERSION 4.2...4.3)

include ("${RunCMake_SOURCE_DIR}/check_errors.cmake")
unset (errors)

set(ENV{SOURCE_DATE_EPOCH} "1123456789")

string(TIMESTAMP reference "%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z")
set(output "$<STRING:TIMESTAMP,%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z>")
if (NOT output STREQUAL reference)
  list (APPEND errors "<STRING:TIMESTAMP,%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z> returns bad data: ${output}")
endif()


string(TIMESTAMP reference "%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z" UTC)
set(output "$<STRING:TIMESTAMP,%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z,UTC>")
if (NOT output STREQUAL reference)
  list (APPEND errors "<STRING:TIMESTAMP,%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z,UTC> returns bad data: ${output}")
endif()
set(output "$<STRING:TIMESTAMP,UTC,%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z>")
if (NOT output STREQUAL reference)
  list (APPEND errors "<STRING:TIMESTAMP,UTC,%Y-%m-%d %H:%M:%S.%f %A=%a %B=%b %y day=%j wd=%w week=%U w_iso=%V %%I=%I epoch=%s TZ=%Z tz=%z> returns bad data: ${output}")
endif()


check_errors("STRING:TIMESTAMP" ${errors})