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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/quic/quic_utils.h"
#include "net/quic/crypto/crypto_protocol.h"
#include "net/quic/quic_flags.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::StringPiece;
using std::string;
namespace net {
namespace test {
namespace {
// A test string and a hex+ASCII dump of the same string.
const unsigned char kString[] = {
0x00, 0x90, 0x69, 0xbd, 0x54, 0x00, 0x00, 0x0d, 0x61, 0x0f, 0x01,
0x89, 0x08, 0x00, 0x45, 0x00, 0x00, 0x1c, 0xfb, 0x98, 0x40, 0x00,
0x40, 0x01, 0x7e, 0x18, 0xd8, 0xef, 0x23, 0x01, 0x45, 0x5d, 0x7f,
0xe2, 0x08, 0x00, 0x6b, 0xcb, 0x0b, 0xc6, 0x80, 0x6e};
const unsigned char kHexDump[] =
"0x0000: 0090 69bd 5400 000d 610f 0189 0800 4500 ..i.T...a.....E.\n"
"0x0010: 001c fb98 4000 4001 7e18 d8ef 2301 455d ....@.@.~...#.E]\n"
"0x0020: 7fe2 0800 6bcb 0bc6 806e ....k....n\n";
TEST(QuicUtilsTest, StreamErrorToString) {
EXPECT_STREQ("QUIC_BAD_APPLICATION_PAYLOAD",
QuicUtils::StreamErrorToString(QUIC_BAD_APPLICATION_PAYLOAD));
}
TEST(QuicUtilsTest, ErrorToString) {
EXPECT_STREQ("QUIC_NO_ERROR", QuicUtils::ErrorToString(QUIC_NO_ERROR));
}
TEST(QuicUtilsTest, StringToHexASCIIDumpArgTypes) {
// Verify that char*, string and StringPiece are all valid argument types.
struct {
const string input;
const string expected;
} tests[] = {
{
"", "",
},
{
"A", "0x0000: 41 A\n",
},
{
"AB", "0x0000: 4142 AB\n",
},
{
"ABC", "0x0000: 4142 43 ABC\n",
},
{
"original",
"0x0000: 6f72 6967 696e 616c original\n",
},
};
for (size_t i = 0; i < arraysize(tests); ++i) {
EXPECT_EQ(tests[i].expected,
QuicUtils::StringToHexASCIIDump(tests[i].input.c_str()));
EXPECT_EQ(tests[i].expected,
QuicUtils::StringToHexASCIIDump(tests[i].input));
EXPECT_EQ(tests[i].expected,
QuicUtils::StringToHexASCIIDump(StringPiece(tests[i].input)));
}
}
TEST(QuicUtilsTest, StringToHexASCIIDumpSuccess) {
EXPECT_EQ(string(reinterpret_cast<const char*>(kHexDump)),
QuicUtils::StringToHexASCIIDump(string(
reinterpret_cast<const char*>(kString), sizeof(kString))));
}
TEST(QuicUtilsTest, TagToString) {
EXPECT_EQ("SCFG", QuicUtils::TagToString(kSCFG));
EXPECT_EQ("SNO ", QuicUtils::TagToString(kServerNonceTag));
EXPECT_EQ("CRT ", QuicUtils::TagToString(kCertificateTag));
EXPECT_EQ("CHLO", QuicUtils::TagToString(MakeQuicTag('C', 'H', 'L', 'O')));
// A tag that contains a non-printing character will be printed as a decimal
// number.
EXPECT_EQ("525092931",
QuicUtils::TagToString(MakeQuicTag('C', 'H', 'L', '\x1f')));
}
TEST(QuicUtilsTest, ParseQuicConnectionOptions) {
QuicTagVector empty_options = QuicUtils::ParseQuicConnectionOptions("");
EXPECT_EQ(0ul, empty_options.size());
QuicTagVector parsed_options =
QuicUtils::ParseQuicConnectionOptions("TIMER,TBBR,REJ");
QuicTagVector expected_options;
expected_options.push_back(kTIME);
expected_options.push_back(kTBBR);
expected_options.push_back(kREJ);
EXPECT_EQ(expected_options, parsed_options);
}
TEST(QuicUtilsTest, DetermineAddressChangeType) {
const string kIPv4String1 = "1.2.3.4";
const string kIPv4String2 = "1.2.3.5";
const string kIPv4String3 = "1.1.3.5";
const string kIPv6String1 = "2001:700:300:1800::f";
const string kIPv6String2 = "2001:700:300:1800:1:1:1:f";
IPEndPoint old_address;
IPEndPoint new_address;
IPAddress address;
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv4String1));
old_address = IPEndPoint(address, 1234);
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
new_address = IPEndPoint(address, 1234);
EXPECT_EQ(NO_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
new_address = IPEndPoint(address, 5678);
EXPECT_EQ(PORT_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv6String1));
old_address = IPEndPoint(address, 1234);
new_address = IPEndPoint(address, 5678);
EXPECT_EQ(PORT_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv4String1));
old_address = IPEndPoint(address, 1234);
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv6String1));
new_address = IPEndPoint(address, 1234);
EXPECT_EQ(IPV4_TO_IPV6_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
old_address = IPEndPoint(address, 1234);
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv4String1));
new_address = IPEndPoint(address, 1234);
EXPECT_EQ(IPV6_TO_IPV4_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv6String2));
new_address = IPEndPoint(address, 1234);
EXPECT_EQ(IPV6_TO_IPV6_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv4String1));
old_address = IPEndPoint(address, 1234);
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv4String2));
new_address = IPEndPoint(address, 1234);
EXPECT_EQ(IPV4_SUBNET_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
ASSERT_TRUE(address.AssignFromIPLiteral(kIPv4String3));
new_address = IPEndPoint(address, 1234);
EXPECT_EQ(UNSPECIFIED_CHANGE,
QuicUtils::DetermineAddressChangeType(old_address, new_address));
}
uint128 IncrementalHashReference(const void* data, size_t len) {
// The two constants are defined as part of the hash algorithm.
// see http://www.isthe.com/chongo/tech/comp/fnv/
// hash = 144066263297769815596495629667062367629
uint128 hash =
uint128(UINT64_C(7809847782465536322), UINT64_C(7113472399480571277));
// kPrime = 309485009821345068724781371
const uint128 kPrime(16777216, 315);
const uint8_t* octets = reinterpret_cast<const uint8_t*>(data);
for (size_t i = 0; i < len; ++i) {
hash = hash ^ uint128(0, octets[i]);
hash = hash * kPrime;
}
return hash;
}
TEST(QuicUtilsHashTest, ReferenceTest) {
std::vector<uint8_t> data(32);
for (size_t i = 0; i < data.size(); ++i) {
data[i] = i % 255;
}
EXPECT_EQ(IncrementalHashReference(data.data(), data.size()),
QuicUtils::FNV1a_128_Hash(
reinterpret_cast<const char*>(data.data()), data.size()));
}
} // namespace
} // namespace test
} // namespace net
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