// Copyright 2019, OpenCensus 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 "opencensus/common/internal/timestamp.h"

#include "absl/time/time.h"
#include "google/protobuf/timestamp.pb.h"
#include "gtest/gtest.h"

namespace {

TEST(TimestampTest, Zero) {
  absl::Time t;
  google::protobuf::Timestamp proto;
  ::opencensus::common::SetTimestamp(t, &proto);
  EXPECT_EQ(0, proto.seconds());
  EXPECT_EQ(0, proto.nanos());
}

TEST(TimestampTest, NonZero) {
  absl::Time t =
      absl::FromUnixSeconds(1561234567) + absl::Nanoseconds(123456789);
  google::protobuf::Timestamp proto;
  ::opencensus::common::SetTimestamp(t, &proto);
  EXPECT_EQ(1561234567, proto.seconds());
  EXPECT_EQ(123456789, proto.nanos());
}

}  // namespace
