### Configure read_write test executable with CMake

Source: https://github.com/wohlstand/libpxtone/blob/main/test/read-write/CMakeLists.txt

CMake configuration for building the read_write test executable. It links against libpxtone_static, sets output directories to test-bin, and conditionally adds big-endian definitions and address sanitizer flags. Registers a CTest test named ReadWriteTest that runs the executable with source and temp directories.

```cmake
set(CMAKE_CXX_STANDARD 11)

include_directories(${CMAKE_SOURCE_DIR}/src)

add_executable(read_write read_write.cpp)
target_link_libraries(read_write PRIVATE libpxtone_static)
add_dependencies(read_write libpxtone_static)

set_target_properties(read_write
    PROPERTIES
    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/test-bin"
    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/test-bin"
    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/test-bin"
)

if(IS_BIG_ENDIAN)
    target_compile_definitions(read_write PRIVATE -Dpx_BIG_ENDIAN)
endif()

if(ENABLE_ADDRESS_SANITIZER)
    target_compile_options(read_write PRIVATE -fsanitize=address)
    target_link_options(read_write PRIVATE -fsanitize=address)
endif()

add_test(NAME ReadWriteTest
         COMMAND "${CMAKE_BINARY_DIR}/test-bin/read_write" "${FILES_SRC_DIR}" "${TEST_TEMP_DIR}")
```

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