Add test for unused warnings at the end of scope

Tests/CMakeLists.txt

@@ -1104,6 +1104,21 @@ ${CMake_BINARY_DIR}/bin/cmake -DVERSION=master -P ${CMake_SOURCE_DIR}/Utilities/
     FAIL_REGULAR_EXPRESSION ":5: warning: \\(unsetting\\) unused variable 'UNUSED_VARIABLE'")
   LIST(APPEND TEST_BUILD_DIRS "${CMake_BINARY_DIR}/Tests/WarnUnusedUnusedViaUnset")
 
+  ADD_TEST(WarnUnusedUnusedViaScope ${CMAKE_CTEST_COMMAND}
+    --build-and-test
+    "${CMake_SOURCE_DIR}/Tests/VariableUnusedViaScope"
+    "${CMake_BINARY_DIR}/Tests/WarnUnusedUnusedViaScope"
+    --build-generator ${CMAKE_TEST_GENERATOR}
+    --build-makeprogram ${CMAKE_TEST_MAKEPROGRAM}
+    --build-noclean
+    --build-project WarnUnusedUnusedViaScope
+    --build-options "--warn-unused-vars")
+  SET_TESTS_PROPERTIES(WarnUnusedUnusedViaScope PROPERTIES
+    PASS_REGULAR_EXPRESSION "warning: \\(out of scope\\) unused variable 'UNUSED_VARIABLE'")
+  SET_TESTS_PROPERTIES(WarnUnusedUnusedViaScope PROPERTIES
+    FAIL_REGULAR_EXPRESSION "warning: \\(unsetting\\) unused variable 'UNUSED_VARIABLE'")
+  LIST(APPEND TEST_BUILD_DIRS "${CMake_BINARY_DIR}/Tests/WarnUnusedUnusedViaScope")
+
   ADD_TEST(WarnUnusedCliUnused ${CMAKE_CTEST_COMMAND}
     --build-and-test
     "${CMake_SOURCE_DIR}/Tests/VariableUsage"

Tests/VariableUnusedViaScope/CMakeLists.txt

@@ -0,0 +1,2 @@
+set(UNUSED_VARIABLE)
+# Warning should occur here