set(UUID_DNS_NAMESPACE 6ba7b810-9dad-11d1-80b4-00c04fd430c8)

string(UUID WWW_EXAMPLE_COM_MD5_UUID
  NAMESPACE ${UUID_DNS_NAMESPACE} NAME www.example.com TYPE MD5)

if(NOT WWW_EXAMPLE_COM_MD5_UUID STREQUAL "5df41881-3aed-3515-88a7-2f4a814cf09e")
  message(SEND_ERROR
    "UUID did not create the expected MD5 result: ${WWW_EXAMPLE_COM_MD5_UUID}")
endif()

string(UUID WWW_EXAMPLE_COM_SHA1_UUID
  NAMESPACE ${UUID_DNS_NAMESPACE} NAME www.example.com TYPE SHA1 UPPER)

if(NOT WWW_EXAMPLE_COM_SHA1_UUID STREQUAL "2ED6657D-E927-568B-95E1-2665A8AEA6A2")
  message(SEND_ERROR
    "UUID did not create the expected SHA1 result: ${WWW_EXAMPLE_COM_SHA1_UUID}")
endif()