GNUInstallDirs: Add tests for reconfigure

Signed-off-by: Cristian Le <git@lecris.dev>

Tests/RunCMake/GNUInstallDirs/Reconfigure.cmake

@@ -0,0 +1,10 @@
+if(DEFINED case)
+  set(PROJECT_NAME ${case})
+  include(${case}.cmake)
+else()
+  # If no case is defined it is an initial setup
+  # Start with the same setup as UsrLocal
+  set(PROJECT_NAME UsrLocal)
+  set(CMAKE_INSTALL_PREFIX "/usr/local")
+  include(Common.cmake)
+endif()

Tests/RunCMake/GNUInstallDirs/RunCMakeTest.cmake

@@ -21,5 +21,21 @@ foreach(case
   unset(RunCMake-stderr-file)
 endforeach()
 
+block()
+  set(RunCMake_TEST_BINARY_DIR "${RunCMake_BINARY_DIR}/Reconfigure-build")
+  set(RunCMake-stderr-file UsrLocal${variant}-stderr.txt)
+  run_cmake_with_options(Reconfigure)
+  set(RunCMake_TEST_NO_CLEAN 1)
+  foreach(case
+      Opt
+      Root
+      Usr
+      UsrLocal
+  )
+    set(RunCMake-stderr-file ${case}${variant}-stderr.txt)
+    run_cmake_with_options(Reconfigure -Dcase=${case})
+  endforeach()
+endblock()
+
 run_cmake(GetAbs)
 run_cmake(NoSystem)