text: // Copyright 2020 Google LLC
  //
  // 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 "status_macros.h"
  
  #include <sstream>
  
  #include <gmock/gmock.h>
  #include <gtest/gtest.h>
  #include "absl/status/status.h"
  #include "statusor.h"
  
  namespace rlwe {
  namespace {
  
  TEST(StatusMacrosTest, TestAssignOrReturn) {
    StatusOr<StatusOr<int>> a(StatusOr<int>(2));
    auto f = [&]() -> absl::Status {
      RLWE_ASSIGN_OR_RETURN(StatusOr<int> status_or_a, a.ValueOrDie());
      EXPECT_EQ(2, status_or_a.ValueOrDie());
      return absl::OkStatus();
    };
    auto status = f();
    EXPECT_TRUE(status.ok()) << status;
  }
  
  TEST(StatusMacrosTest, TestAssignOrReturnFails) {
    auto a = []() -> StatusOr<int> { return absl::InternalError("error"); };
    auto f = [&]() -> absl::Status {
      RLWE_ASSIGN_OR_RETURN(auto result, a());
      result++;
      return absl::OkStatus();
    };
    auto status = f();
    EXPECT_EQ(absl::StatusCode::kInternal, status.code());
    EXPECT_EQ("error", status.message());
  }
  
  }  // namespace
  }  // namespace rlwe
  