CPack tests: add possibility for expecting config developer warnings

Tests/RunCMake/CPack/CPackTestHelpers.cmake

@@ -35,10 +35,27 @@ function(run_cpack_test_common_ TEST_NAME types build SUBTEST_SUFFIX source PACK
       "-DRunCMake_TEST_FILE_PREFIX=${TEST_NAME}"
       "-DRunCMake_SUBTEST_SUFFIX=${SUBTEST_SUFFIX}"
       "-DPACKAGING_TYPE=${PACKAGING_TYPE}")
+
+    foreach(o out err)
+      if(SUBTEST_SUFFIX AND EXISTS ${RunCMake_SOURCE_DIR}/tests/${TEST_NAME}/configure-${PACKAGING_TYPE}-${SUBTEST_SUFFIX}-std${o}.txt)
+        set(RunCMake-std${o}-file "tests/${TEST_NAME}/configure-${PACKAGING_TYPE}-${SUBTEST_SUFFIX}-std${o}.txt")
+      elseif(SUBTEST_SUFFIX AND EXISTS ${RunCMake_SOURCE_DIR}/tests/${TEST_NAME}/configure-${SUBTEST_SUFFIX}-std${o}.txt)
+        set(RunCMake-std${o}-file "tests/${TEST_NAME}/configure-${SUBTEST_SUFFIX}-std${o}.txt")
+      elseif(EXISTS ${RunCMake_SOURCE_DIR}/tests/${TEST_NAME}/configure-${PACKAGING_TYPE}-std${o}.txt)
+        set(RunCMake-std${o}-file "tests/${TEST_NAME}/configure-${PACKAGING_TYPE}-std${o}.txt")
+      elseif(EXISTS ${RunCMake_SOURCE_DIR}/tests/${TEST_NAME}/configure-std${o}.txt)
+        set(RunCMake-std${o}-file "tests/${TEST_NAME}/configure-std${o}.txt")
+      else()
+        unset(RunCMake-std${o}-file)
+      endif()
+    endforeach()
+
     run_cmake(${full_test_name_})
 
     # execute optional build step
     if(build)
+      unset(RunCMake-stdout-file)
+      unset(RunCMake-stderr-file)
       run_cmake_command(${full_test_name_}-Build "${CMAKE_COMMAND}" --build "${RunCMake_TEST_BINARY_DIR}")
     endif()
 
@@ -72,6 +89,8 @@ function(run_cpack_test_common_ TEST_NAME types build SUBTEST_SUFFIX source PACK
         set(RunCMake-std${o}-file "tests/${TEST_NAME}/${SUBTEST_SUFFIX}-std${o}.txt")
       elseif(EXISTS ${RunCMake_SOURCE_DIR}/${TEST_TYPE}/default_expected_std${o}.txt)
         set(RunCMake-std${o}-file "${TEST_TYPE}/default_expected_std${o}.txt")
+      else()
+        unset(RunCMake-std${o}-file)
       endif()
     endforeach()
 

Tests/RunCMake/CPack/README.txt

@@ -96,6 +96,14 @@ the test has to run some functions after CPack.cmake is included. In such cases
 a function run_after_include_cpack can be declared in test.cmake file and that
 function will run after the inclusion of CPack.cmake.
 
+NOTE: During CMake configure stage developer warnings may be expected. In such
+cases an expected output regular expression can be provided by creating
+'<test_name>/configure-stdout.txt' and/or '<test_name>/configure-stderr.txt'
+file. There are also more specialized versions of the file available:
+- configure-${PACKAGING_TYPE}-${SUBTEST_SUFFIX}-std${o}.txt
+- configure-${SUBTEST_SUFFIX}-std${o}.txt
+- configure-${PACKAGING_TYPE}-std${o}.txt
+
 build phase (optional and not available for source package tests)
 -----------------------------------------------------------------
 
@@ -165,7 +173,7 @@ This phase is executed if '<test_name>/VerifyResult.cmake' script exists.
 VerifyResult.cmake script also automatically prints out standard output and
 standard error from CPack execution phase that is compared with
 '<test_name>/<generator_name>-stdout.txt' regular expression and
-and '<test_name>/<generator_name>-stderr.txt' regular expresson respectively.
+'<test_name>/<generator_name>-stderr.txt' regular expresson respectively.
 NOTE: For subtests generator name can also be suffixed with subtest name and/or
       packaging type (MONOLITHIC, COMPONENT, GROUP) and in such cases the
       preferences of which file will be used are as follows: