we should `using` it before calling it using `DoAll`.
Signed-off-by: Kefu Chai <kchai@redhat.com>
namespace librbd {
using ::testing::_;
+using ::testing::DoAll;
using ::testing::DoDefault;
using ::testing::Invoke;
using ::testing::InSequence;
namespace image_deleter {
using ::testing::_;
+using ::testing::DoAll;
using ::testing::Invoke;
using ::testing::InSequence;
using ::testing::Return;
namespace image_deleter {
using ::testing::_;
+using ::testing::DoAll;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::Return;
} // namespace image_sync
using ::testing::_;
+using ::testing::DoAll;
using ::testing::InSequence;
using ::testing::Invoke;
using ::testing::Return;