if(NOT "@CMAKE_CURRENT_SOURCE_DIR@" MATCHES "^/")
  set(slash /)
endif()
set(url "file://${slash}@CMAKE_CURRENT_SOURCE_DIR@/FileDownloadInput.png")
set(dir "@CMAKE_CURRENT_BINARY_DIR@/downloads")

file(DOWNLOAD
  ${url}
  ${dir}/file3.png
  TIMEOUT 2
  STATUS status
  EXPECTED_HASH SHA1=5555555555555555555555555555555555555555
  )