From 32e9276a086c8ec78d0d6ff15bf576571118c3d7 Mon Sep 17 00:00:00 2001
From: Domen Vrankar <domen.vrankar@gmail.com>
Date: Mon, 13 Jul 2015 22:23:22 +0200
Subject: [PATCH] Tests/RunCMake/CPack/DEB: add verifyDebControl

Add verifyDebControl helper function for checking
of package control files such as preinstall scripts.
---
 Tests/RunCMake/CPack/DEB/Helpers.cmake | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Tests/RunCMake/CPack/DEB/Helpers.cmake b/Tests/RunCMake/CPack/DEB/Helpers.cmake
index 4ed3fbdae..45c85c3a0 100644
--- a/Tests/RunCMake/CPack/DEB/Helpers.cmake
+++ b/Tests/RunCMake/CPack/DEB/Helpers.cmake
@@ -8,3 +8,21 @@ function(getPackageContent FILE RESULT_VAR)
 
   set(${RESULT_VAR} "${package_content_}" PARENT_SCOPE)
 endfunction()
+
+function(verifyDebControl FILE PREFIX VERIFY_FILES)
+  execute_process(COMMAND ${DPKG_EXECUTABLE} --control ${FILE} control_${PREFIX}
+          ERROR_VARIABLE err_)
+
+  if(err_)
+    message(FATAL_ERROR "Debian controll verification failed for file: "
+        "'${FILE}'; error output: '${err_}'")
+  endif()
+
+  foreach(FILE_ IN LISTS VERIFY_FILES)
+    file(READ "${CMAKE_CURRENT_BINARY_DIR}/control_${PREFIX}/${FILE_}" content_)
+    if(NOT content_ MATCHES "${${PREFIX}_${FILE_}}")
+      message(FATAL_ERROR "Unexpected content in for '${PREFIX}_${FILE_}'!"
+          " Content: '${content_}'")
+    endif()
+  endforeach()
+endfunction()