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set(VAR1 "OUTER1")
set(VAR2 "OUTER2")
set(VAR3 "OUTER3")
set(VAR4 "OUTER4")
set(VAR5 "OUTER5")
set(VAR6 "CACHE6" CACHE STRING "")
set(VAR6 "OUTER6")
cmake_policy(SET CMP0139 NEW)
# create a block with a new scope for variables and policies
block(PROPAGATE VAR3 VAR4 VAR5 VAR6 VAR7)
set(VAR1 "INNER1")
set(VAR2 "INNER2" PARENT_SCOPE)
set(VAR3 "INNER3")
unset(VAR4)
unset(VAR6)
set(VAR7 "INNER7")
cmake_policy(SET CMP0139 OLD)
endblock()
# check final values for variables
if(NOT DEFINED VAR1 OR NOT VAR1 STREQUAL "OUTER1")
message(SEND_ERROR "block/endblock: VAR1 has unexpected value: ${VAR1}")
endif()
if(NOT DEFINED VAR2 OR NOT VAR2 STREQUAL "INNER2")
message(SEND_ERROR "block/endblock: VAR2 has unexpected value: ${VAR2}")
endif()
if(NOT DEFINED VAR3 OR NOT VAR3 STREQUAL "INNER3")
message(SEND_ERROR "block/endblock: VAR3 has unexpected value: ${VAR3}")
endif()
if(DEFINED VAR4)
message(SEND_ERROR "block/endblock: VAR4 is unexpectedly defined: ${VAR4}")
endif()
if(NOT DEFINED VAR5 OR NOT VAR5 STREQUAL "OUTER5")
message(SEND_ERROR "block/endblock: VAR5 has unexpected value: ${VAR5}")
endif()
unset(VAR6 CACHE)
if (DEFINED VAR6)
message(SEND_ERROR "block/endblock: VAR6 is unexpectedly defined: ${VAR6}")
endif()
if(NOT DEFINED VAR7 OR NOT VAR7 STREQUAL "INNER7")
message(SEND_ERROR "block/endblock: VAR6 has unexpected value: ${VAR7}")
endif()
cmake_policy(GET CMP0139 CMP0139_STATUS)
if(NOT CMP0139_STATUS STREQUAL "NEW")
message(SEND_ERROR "block/endblock: CMP0139 has unexpected value: ${CMP0139_STATUS}")
endif()
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