/*
 *
 * Copyright 2015 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 <string.h>

#include <grpc/grpc.h>
#include <grpc/grpc_security.h>
#include <grpc/support/log.h>
#include "src/core/ext/filters/client_channel/resolver_registry.h"
#include "src/core/lib/security/credentials/fake/fake_credentials.h"
#include "src/core/lib/security/security_connector/security_connector.h"
#include "src/core/lib/surface/channel.h"
#include "test/core/util/test_config.h"

void test_unknown_scheme_target(void) {
  grpc_core::ResolverRegistry::Builder::ShutdownRegistry();
  grpc_core::ResolverRegistry::Builder::InitRegistry();
  grpc_channel_credentials* creds =
      grpc_fake_transport_security_credentials_create();
  grpc_channel* chan =
      grpc_secure_channel_create(creds, "blah://blah", nullptr, nullptr);
  grpc_channel_element* elem =
      grpc_channel_stack_element(grpc_channel_get_channel_stack(chan), 0);
  GPR_ASSERT(0 == strcmp(elem->filter->name, "lame-client"));
  grpc_core::ExecCtx exec_ctx;
  GRPC_CHANNEL_INTERNAL_UNREF(chan, "test");
  creds->Unref();
}

void test_security_connector_already_in_arg(void) {
  grpc_arg arg;
  arg.type = GRPC_ARG_POINTER;
  arg.value.pointer.p = nullptr;
  arg.key = const_cast<char*>(GRPC_ARG_SECURITY_CONNECTOR);
  grpc_channel_args args;
  args.num_args = 1;
  args.args = &arg;
  grpc_channel* chan =
      grpc_secure_channel_create(nullptr, nullptr, &args, nullptr);
  grpc_channel_element* elem =
      grpc_channel_stack_element(grpc_channel_get_channel_stack(chan), 0);
  GPR_ASSERT(0 == strcmp(elem->filter->name, "lame-client"));
  grpc_core::ExecCtx exec_ctx;
  GRPC_CHANNEL_INTERNAL_UNREF(chan, "test");
}

void test_null_creds(void) {
  grpc_channel* chan =
      grpc_secure_channel_create(nullptr, nullptr, nullptr, nullptr);
  grpc_channel_element* elem =
      grpc_channel_stack_element(grpc_channel_get_channel_stack(chan), 0);
  GPR_ASSERT(0 == strcmp(elem->filter->name, "lame-client"));
  grpc_core::ExecCtx exec_ctx;
  GRPC_CHANNEL_INTERNAL_UNREF(chan, "test");
}

int main(int argc, char** argv) {
  grpc::testing::TestEnvironment env(argc, argv);
  grpc_init();
  test_security_connector_already_in_arg();
  test_null_creds();
  test_unknown_scheme_target();
  grpc_shutdown();
  return 0;
}