Add travis build for lua functionaltest

.ci/common/build.sh

@@ -5,6 +5,9 @@ build_deps() {
   if [[ "${BUILD_MINGW}" == ON ]]; then
     DEPS_CMAKE_FLAGS="${DEPS_CMAKE_FLAGS} ${CMAKE_FLAGS_MINGW}"
   fi
+  if [[ "${FUNCTIONALTEST}" == "functionaltest-lua" ]]; then
+    DEPS_CMAKE_FLAGS="${DEPS_CMAKE_FLAGS} -DUSE_BUNDLED_LUA=ON"
+  fi
 
   rm -rf "${DEPS_BUILD_DIR}"
 

.ci/common/test.sh

@@ -53,7 +53,7 @@ run_unittests() {
 }
 
 run_functionaltests() {
-  if ! ${MAKE_CMD} -C "${BUILD_DIR}" functionaltest; then
+  if ! ${MAKE_CMD} -C "${BUILD_DIR}" ${FUNCTIONALTEST}; then
     asan_check "${LOG_DIR}"
     valgrind_check "${LOG_DIR}"
     exit 1

.travis.yml

@@ -53,6 +53,8 @@ env:
     # if the tests were successful, but don't have this information
     # available in before_cache (which is run before after_success).
     - SUCCESS_MARKER="$BUILD_DIR/.tests_successful"
+    # default target name for functional tests
+    - FUNCTIONALTEST=functionaltest
 
 matrix:
   include:
@@ -60,6 +62,9 @@ matrix:
       env: CI_TARGET=lint
     - os: linux
       compiler: gcc-5
+    - os: linux
+      compiler: gcc-5
+      env: FUNCTIONALTEST=functionaltest-lua
     - os: linux
       # Travis creates a cache per compiler.
       # Set a different value here to store 32-bit