Add object_pool_unittest.cpp to unittest

test/BUILD

@@ -136,6 +136,7 @@ TEST_BUTIL_SOURCES = [
     "flat_map_unittest.cpp",
     "crc32c_unittest.cc",
     "iobuf_unittest.cpp",
+    "object_pool_unittest.cpp",
     "test_switches.cc",
     "scoped_locale.cc",
     "recordio_unittest.cpp",

test/CMakeLists.txt

@@ -149,6 +149,7 @@ SET(TEST_BUTIL_SOURCES
     ${PROJECT_SOURCE_DIR}/test/flat_map_unittest.cpp
     ${PROJECT_SOURCE_DIR}/test/crc32c_unittest.cc
     ${PROJECT_SOURCE_DIR}/test/iobuf_unittest.cpp
+    ${PROJECT_SOURCE_DIR}/test/object_pool_unittest.cpp
     ${PROJECT_SOURCE_DIR}/test/test_switches.cc
     ${PROJECT_SOURCE_DIR}/test/scoped_locale.cc
     ${PROJECT_SOURCE_DIR}/test/butil_unittest_main.cpp

test/Makefile

@@ -118,6 +118,7 @@ TEST_BUTIL_SOURCES = \
     flat_map_unittest.cpp \
     crc32c_unittest.cc \
     iobuf_unittest.cpp \
+    object_pool_unittest.cpp \
     recordio_unittest.cpp \
     test_switches.cc \
     scoped_locale.cc \