// Copyright (c) 2011-2016 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <System/Dispatcher.h>
#include <System/ContextGroup.h>
#include <System/InterruptedException.h>
#include <System/Ipv4Address.h>
#include <System/Ipv4Resolver.h>
#include <gtest/gtest.h>

using namespace System;

class Ipv4ResolverTests : public testing::Test {
public:
  Ipv4ResolverTests() : contextGroup(dispatcher), resolver(dispatcher) {
  }

  Dispatcher dispatcher;
  ContextGroup contextGroup;
  Ipv4Resolver resolver;
};

TEST_F(Ipv4ResolverTests, start) {
  contextGroup.spawn([&] { 
    ASSERT_NO_THROW(Ipv4Resolver(dispatcher).resolve("localhost")); 
  });
  contextGroup.wait();
}

TEST_F(Ipv4ResolverTests, stop) {
  contextGroup.spawn([&] {
    contextGroup.interrupt();
    ASSERT_THROW(resolver.resolve("localhost"), InterruptedException);
  });
  contextGroup.wait();
}

TEST_F(Ipv4ResolverTests, interruptWhileResolving) {
  contextGroup.spawn([&] {
    ASSERT_THROW(resolver.resolve("localhost"), InterruptedException);
  });
  contextGroup.interrupt();
  contextGroup.wait();
}

TEST_F(Ipv4ResolverTests, reuseAfterInterrupt) {
  contextGroup.spawn([&] {
    ASSERT_THROW(resolver.resolve("localhost"), InterruptedException);
  });
  contextGroup.interrupt();
  contextGroup.wait();
  contextGroup.spawn([&] {
    ASSERT_NO_THROW(resolver.resolve("localhost"));
  });
  contextGroup.wait();
}

TEST_F(Ipv4ResolverTests, resolve) {
  ASSERT_EQ(Ipv4Address("0.0.0.0"), resolver.resolve("0.0.0.0"));
  ASSERT_EQ(Ipv4Address("1.2.3.4"), resolver.resolve("1.2.3.4"));
  ASSERT_EQ(Ipv4Address("127.0.0.1"), resolver.resolve("127.0.0.1"));
  ASSERT_EQ(Ipv4Address("254.253.252.251"), resolver.resolve("254.253.252.251"));
  ASSERT_EQ(Ipv4Address("255.255.255.255"), resolver.resolve("255.255.255.255"));
  ASSERT_EQ(Ipv4Address("127.0.0.1"), resolver.resolve("localhost"));
//ASSERT_EQ(Ipv4Address("93.184.216.34"), resolver.resolve("example.com"));
  ASSERT_THROW(resolver.resolve(".0.0.0.0"), std::runtime_error);
  ASSERT_THROW(resolver.resolve("0..0.0.0"), std::runtime_error);
//ASSERT_THROW(resolver.resolve("0.0.0"), std::runtime_error);
  ASSERT_THROW(resolver.resolve("0.0.0."), std::runtime_error);
//ASSERT_THROW(resolver.resolve("0.0.0.0."), std::runtime_error);
  ASSERT_THROW(resolver.resolve("0.0.0.0.0"), std::runtime_error);
//ASSERT_THROW(resolver.resolve("0.0.0.00"), std::runtime_error);
//ASSERT_THROW(resolver.resolve("0.0.0.01"), std::runtime_error);
  ASSERT_THROW(resolver.resolve("0.0.0.256"), std::runtime_error);
//ASSERT_THROW(resolver.resolve("00.0.0.0"), std::runtime_error);
//ASSERT_THROW(resolver.resolve("01.0.0.0"), std::runtime_error);
  ASSERT_THROW(resolver.resolve("256.0.0.0"), std::runtime_error);
  ASSERT_THROW(resolver.resolve("invalid"), std::runtime_error);
}