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/* the project.                                                               */
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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
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 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in
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 */

#include "wpi/uv/GetAddrInfo.h"  // NOLINT(build/include_order)

#include "gtest/gtest.h"  // NOLINT(build/include_order)

#include "wpi/uv/Loop.h"

#define CONCURRENT_COUNT 10

namespace wpi {
namespace uv {

TEST(UvGetAddrInfo, BothNull) {
  int fail_cb_called = 0;

  auto loop = Loop::Create();
  loop->error.connect([&](Error err) {
    ASSERT_EQ(err.code(), UV_EINVAL);
    fail_cb_called++;
  });

  GetAddrInfo(
      loop, [](const addrinfo&) { FAIL(); }, Twine::createNull());
  loop->Run();
  ASSERT_EQ(fail_cb_called, 1);
}

TEST(UvGetAddrInfo, FailedLookup) {
  int fail_cb_called = 0;

  auto loop = Loop::Create();
  loop->error.connect([&](Error err) {
    ASSERT_EQ(fail_cb_called, 0);
    ASSERT_LT(err.code(), 0);
    fail_cb_called++;
  });

  // Use a FQDN by ending in a period
  GetAddrInfo(
      loop, [](const addrinfo&) { FAIL(); }, "xyzzy.xyzzy.xyzzy.");
  loop->Run();
  ASSERT_EQ(fail_cb_called, 1);
}

TEST(UvGetAddrInfo, Basic) {
  int getaddrinfo_cbs = 0;

  auto loop = Loop::Create();
  loop->error.connect([](Error) { FAIL(); });

  GetAddrInfo(
      loop, [&](const addrinfo&) { getaddrinfo_cbs++; }, "localhost");

  loop->Run();

  ASSERT_EQ(getaddrinfo_cbs, 1);
}

#ifndef _WIN32
TEST(UvGetAddrInfo, Concurrent) {
  int getaddrinfo_cbs = 0;
  int callback_counts[CONCURRENT_COUNT];

  auto loop = Loop::Create();
  loop->error.connect([](Error) { FAIL(); });

  for (int i = 0; i < CONCURRENT_COUNT; i++) {
    callback_counts[i] = 0;
    GetAddrInfo(
        loop,
        [i, &callback_counts, &getaddrinfo_cbs](const addrinfo&) {
          callback_counts[i]++;
          getaddrinfo_cbs++;
        },
        "localhost");
  }

  loop->Run();

  for (int i = 0; i < CONCURRENT_COUNT; i++) {
    ASSERT_EQ(callback_counts[i], 1);
  }
}
#endif

}  // namespace uv
}  // namespace wpi
