//
// Copyright 2022 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 <memory>

#include <gmock/gmock.h>
#include <gtest/gtest.h>

#include <grpc/grpc.h>

#include "test/core/util/test_config.h"
#include "test/cpp/interop/xds_interop_server_lib.h"

namespace grpc {
namespace testing {
namespace {

TEST(GetRpcBehaviorMetadataTest, ErrorCodeNoFilter) {
  auto status = GetStatusForRpcBehaviorMetadata("error-code-16", "hostname");
  ASSERT_TRUE(status.has_value());
  ASSERT_EQ(status->error_code(), 16) << status->error_message();
}

TEST(GetRpcBehaviorMetadataTest, ErrorCodeThisHost) {
  auto status = GetStatusForRpcBehaviorMetadata(
      "hostname=hostname error-code-16", "hostname");
  ASSERT_TRUE(status.has_value());
  ASSERT_EQ(status->error_code(), 16) << status->error_message();
}

TEST(GetRpcBehaviorMetadataTest, ErrorCodeOtherHost) {
  auto status = GetStatusForRpcBehaviorMetadata(
      "hostname=hostname2 error-code-16", "hostname");
  ASSERT_FALSE(status.has_value());
}

TEST(GetRpcBehaviorMetadataTest, MalformedErrorCode) {
  auto status = GetStatusForRpcBehaviorMetadata("error-code-", "hostname");
  ASSERT_TRUE(status.has_value());
  ASSERT_EQ(status->error_code(), grpc::StatusCode::INVALID_ARGUMENT)
      << status->error_message();
}

TEST(GetRpcBehaviorMetadataTest, MalformedHostName) {
  auto status =
      GetStatusForRpcBehaviorMetadata("hostname= error-code-16", "hostname");
  ASSERT_TRUE(status.has_value());
  ASSERT_EQ(status->error_code(), grpc::StatusCode::INVALID_ARGUMENT)
      << status->error_message();
}

TEST(GetRpcBehaviorMetadataTest, ErrorWhenUnsupported) {
  auto status = GetStatusForRpcBehaviorMetadata("unsupported", "hostname");
  ASSERT_TRUE(status.has_value());
  ASSERT_EQ(status->error_code(), grpc::StatusCode::INVALID_ARGUMENT)
      << status->error_message();
}

}  // namespace
}  // namespace testing
}  // namespace grpc

int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
  grpc::testing::TestEnvironment env(&argc, argv);
  grpc_init();
  auto result = RUN_ALL_TESTS();
  grpc_shutdown();
  return result;
}