grpc/test/core/promise/race_test.cc

// Copyright 2021 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "src/core/lib/promise/race.h"
#include <gtest/gtest.h>

namespace grpc_core {

Poll<int> instant() { return 1; }
Poll<int> never() { return Pending(); }

TEST(RaceTest, Race1) { EXPECT_EQ(Race(instant)(), Poll<int>(1)); }
TEST(RaceTest, Race2A) { EXPECT_EQ(Race(instant, never)(), Poll<int>(1)); }
TEST(RaceTest, Race2B) { EXPECT_EQ(Race(never, instant)(), Poll<int>(1)); }

}  // namespace grpc_core

int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}