Added C++ benchmark. (#1525)

1 files changed, 3 insertions, 0 deletions

diff --git a/tests.sh b/tests.sh
index 9e95f2b7..7c5dd884 100755
--- a/tests.sh
+++ b/tests.sh
@@ -38,6 +38,9 @@ build_cpp() {
   cd conformance && make test_cpp && cd ..
 
   # Verify benchmarking code can build successfully.
+  git submodule init
+  git submodule update
+  cd third_party/benchmark && cmake -DCMAKE_BUILD_TYPE=Release && make && cd ../..
   cd benchmarks && make && ./generate-datasets && cd ..
 }