880   std::pair<grpc::string, grpc::string> meta2("key2", "val2");  in TEST_P()  local
883   cli_ctx.AddMetadata(meta2.first, meta2.second);  in TEST_P()
897   EXPECT_EQ(meta2.second,  in TEST_P()
898             ToString(client_initial_metadata.find(meta2.first)->second));  in TEST_P()
926   std::pair<grpc::string, grpc::string> meta2("key2", "val2");  in TEST_P()  local
937   srv_ctx.AddInitialMetadata(meta2.first, meta2.second);  in TEST_P()
943   EXPECT_EQ(meta2.second,  in TEST_P()
944             ToString(server_initial_metadata.find(meta2.first)->second));  in TEST_P()
971   std::pair<grpc::string, grpc::string> meta2("key2", "val2");  in TEST_P()  local
986   srv_ctx.AddTrailingMetadata(meta2.first, meta2.second);  in TEST_P()
996   EXPECT_EQ(meta2.second,  in TEST_P()
997             ToString(server_trailing_metadata.find(meta2.first)->second));  in TEST_P()
1016   std::pair<grpc::string, grpc::string> meta2(  in TEST_P()  local
1031   cli_ctx.AddMetadata(meta2.first, meta2.second);  in TEST_P()
1044   EXPECT_EQ(meta2.second,  in TEST_P()
1045             ToString(client_initial_metadata.find(meta2.first)->second));  in TEST_P()