CPackWiX: Fix test to build with expected config

Tests/CMakeLists.txt

@@ -829,6 +829,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DVERSION=master -P ${CMake_SOURCE_DIR}/Utilities/
 
     if(WIX_LIGHT_EXECUTABLE)
       add_test(CPackWiXGenerator ${CMAKE_CTEST_COMMAND}
+        -C \${CTEST_CONFIGURATION_TYPE}
         --build-and-test
         "${CMake_SOURCE_DIR}/Tests/CPackWiXGenerator"
         "${CMake_BINARY_DIR}/Tests/CPackWiXGenerator"
@@ -837,6 +838,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DVERSION=master -P ${CMake_SOURCE_DIR}/Utilities/
         --build-options ${build_options}
         --test-command ${CMAKE_CMAKE_COMMAND}
           "-DCPackWiXGenerator_BINARY_DIR:PATH=${CMake_BINARY_DIR}/Tests/CPackWiXGenerator"
+          "-Dconfig=\${CTEST_CONFIGURATION_TYPE}"
           -P "${CMake_SOURCE_DIR}/Tests/CPackWiXGenerator/RunCPackVerifyResult.cmake")
     endif()
   endif()

Tests/CPackWiXGenerator/RunCPackVerifyResult.cmake

@@ -10,7 +10,12 @@ message(STATUS "CMAKE_COMMAND: ${CMAKE_COMMAND}")
 message(STATUS "CMAKE_CPACK_COMMAND: ${CMAKE_CPACK_COMMAND}")
 message(STATUS "CPackWiXGenerator_BINARY_DIR: ${CPackWiXGenerator_BINARY_DIR}")
 
+if(config)
+  set(_C_config -C ${config})
+endif()
+
 execute_process(COMMAND "${CMAKE_CPACK_COMMAND}"
+                        ${_C_config}
   RESULT_VARIABLE CPack_result
   OUTPUT_VARIABLE CPack_output
   ERROR_VARIABLE CPack_error