chore(*): tag 'slow' tests as 'expensive', and exclude 'expensive' tests when testing under valgrind

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

.travis.yml

@@ -271,7 +271,7 @@ after_script:
      CONFIG_FILE=DartConfiguration.tcl;
      sed -i "s,^MemoryCheckSuppressionFile:\W*$,MemoryCheckSuppressionFile:$MEMCHECK_SUPP," $CONFIG_FILE;
      ulimit -s unlimited;
-     yes "C" | ctest -D ExperimentalMemCheck -VV -I $MEMCHECK_RANGE | ../script/demangle_cpptype.py;
+     yes "C" | ctest -D ExperimentalMemCheck -LE expensive -VV -I $MEMCHECK_RANGE | ../script/demangle_cpptype.py;
   fi
 - if [[ $REPO == BLESSED && $PUSH_TO_CDASH == TRUE ]]; then
       GIT_COMMIT=`git log --oneline -n 1 | cut -d ' ' -f 1`;

src/shell/CMakeLists.txt

@@ -76,6 +76,16 @@ FOREACH(T ${LEANLUATESTS})
            COMMAND "./test_single.sh" "${CMAKE_CURRENT_BINARY_DIR}/lean -t" ${T_NAME})
 ENDFOREACH(T)
 
+# LEAN LUA SLOW TESTS
+file(GLOB LEANLUASLOWTESTS "${LEAN_SOURCE_DIR}/../tests/lua/slow/*.lua")
+FOREACH(T ${LEANLUASLOWTESTS})
+  GET_FILENAME_COMPONENT(T_NAME ${T} NAME)
+  add_test(NAME "leanluaslowtest_${T_NAME}"
+           WORKING_DIRECTORY "${LEAN_SOURCE_DIR}/../tests/lua/slow"
+           COMMAND "../test_single.sh" "${CMAKE_CURRENT_BINARY_DIR}/lean -t" ${T_NAME})
+  set_tests_properties("leanluaslowtest_${T_NAME}" PROPERTIES LABELS "expensive")
+ENDFOREACH(T)
+
 # # LEAN DOCS
 # file(GLOB LEANDOCS "${LEAN_SOURCE_DIR}/../doc/lean/*.md")
 # FOREACH(T ${LEANDOCS})

tests/lua/slow/extra.lua

@@ -0,0 +1,11 @@
+-- Execute f, and make sure is throws an error
+function check_error(f)
+    ok, msg = pcall(function ()
+        f()
+        end)
+    if ok then
+       error("unexpected success...")
+    else
+       print("caught expected error: ", msg)
+    end
+end